Closing the Loop: Optimizing Oncology Care Coordination for Veterans

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Abstract: 2018 AVAHO Meeting

Purpose/Rationale: In order to improve cancer care coordination (CCC) a quality improvement pilot study was performed using a novel tracking tool for Veterans at the VA North Texas Health Care System (VANTHCS) located in Dallas, Texas.

Background: The VANTHCS is the second largest VA health care system in the country, serving over 113,000 Veterans and delivering one million outpatient episodes of care each year. Cancer is one of the leading causes of these episodes of care. This specific population faces unique needs due to the complexity of cancer care. Particularly, newly diagnosed cancer patients are at risk for being lost to follow up, receiving timeliness of care as well as having interruptions in communication among providers and Veterans. Cancer care coordination has been shown to augment the quality of cancer care. Prior to the initiation of this study, there was no cancer care tracking tool in place and no comprehensive CCC across the continuum at VANTHCS.

Methods: In April 2017, discussion was initiated among the key cancer care providing stakeholders to formulate a plan to identify all Veteran patients newly diagnosed with cancer at VANTHCS. Utilizing histopathology and cytology reports from VistA, we developed an interface that displayed Veterans with new cancer diagnoses. This system was put in place to capture initial date of diagnosis and
monitor scheduled patient appointments through the date of initial treatments. A plan-do-study-act (PDSA) was conducted to assess for any changes.

Results: From May 2017 through May 2018, data were collected and analyzed in the Cancer Care Tracking Tool by a designated registered nurse (RN); approximately 1,400 newly diagnosed cancer cases were tracked. Fifty-three cases were identified requiring an intervention. This tracking prompted discussion with key cancer stakeholders for the need of a cancer program clinical coordinator (CPCC). A full-time CPCC was appointed in February 2018.

Conclusions/Implications: This innovative study presented an original approach to improve the quality of cancer care for Veterans. Through the Cancer Care Tracking Tool the RN and CPCC actively identified and addressed barriers to cancer care. This may have numerous implications for future studies including, patient satisfaction and enhanced patient outcomes.

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Abstract: 2018 AVAHO Meeting
Abstract: 2018 AVAHO Meeting

Purpose/Rationale: In order to improve cancer care coordination (CCC) a quality improvement pilot study was performed using a novel tracking tool for Veterans at the VA North Texas Health Care System (VANTHCS) located in Dallas, Texas.

Background: The VANTHCS is the second largest VA health care system in the country, serving over 113,000 Veterans and delivering one million outpatient episodes of care each year. Cancer is one of the leading causes of these episodes of care. This specific population faces unique needs due to the complexity of cancer care. Particularly, newly diagnosed cancer patients are at risk for being lost to follow up, receiving timeliness of care as well as having interruptions in communication among providers and Veterans. Cancer care coordination has been shown to augment the quality of cancer care. Prior to the initiation of this study, there was no cancer care tracking tool in place and no comprehensive CCC across the continuum at VANTHCS.

Methods: In April 2017, discussion was initiated among the key cancer care providing stakeholders to formulate a plan to identify all Veteran patients newly diagnosed with cancer at VANTHCS. Utilizing histopathology and cytology reports from VistA, we developed an interface that displayed Veterans with new cancer diagnoses. This system was put in place to capture initial date of diagnosis and
monitor scheduled patient appointments through the date of initial treatments. A plan-do-study-act (PDSA) was conducted to assess for any changes.

Results: From May 2017 through May 2018, data were collected and analyzed in the Cancer Care Tracking Tool by a designated registered nurse (RN); approximately 1,400 newly diagnosed cancer cases were tracked. Fifty-three cases were identified requiring an intervention. This tracking prompted discussion with key cancer stakeholders for the need of a cancer program clinical coordinator (CPCC). A full-time CPCC was appointed in February 2018.

Conclusions/Implications: This innovative study presented an original approach to improve the quality of cancer care for Veterans. Through the Cancer Care Tracking Tool the RN and CPCC actively identified and addressed barriers to cancer care. This may have numerous implications for future studies including, patient satisfaction and enhanced patient outcomes.

Purpose/Rationale: In order to improve cancer care coordination (CCC) a quality improvement pilot study was performed using a novel tracking tool for Veterans at the VA North Texas Health Care System (VANTHCS) located in Dallas, Texas.

Background: The VANTHCS is the second largest VA health care system in the country, serving over 113,000 Veterans and delivering one million outpatient episodes of care each year. Cancer is one of the leading causes of these episodes of care. This specific population faces unique needs due to the complexity of cancer care. Particularly, newly diagnosed cancer patients are at risk for being lost to follow up, receiving timeliness of care as well as having interruptions in communication among providers and Veterans. Cancer care coordination has been shown to augment the quality of cancer care. Prior to the initiation of this study, there was no cancer care tracking tool in place and no comprehensive CCC across the continuum at VANTHCS.

Methods: In April 2017, discussion was initiated among the key cancer care providing stakeholders to formulate a plan to identify all Veteran patients newly diagnosed with cancer at VANTHCS. Utilizing histopathology and cytology reports from VistA, we developed an interface that displayed Veterans with new cancer diagnoses. This system was put in place to capture initial date of diagnosis and
monitor scheduled patient appointments through the date of initial treatments. A plan-do-study-act (PDSA) was conducted to assess for any changes.

Results: From May 2017 through May 2018, data were collected and analyzed in the Cancer Care Tracking Tool by a designated registered nurse (RN); approximately 1,400 newly diagnosed cancer cases were tracked. Fifty-three cases were identified requiring an intervention. This tracking prompted discussion with key cancer stakeholders for the need of a cancer program clinical coordinator (CPCC). A full-time CPCC was appointed in February 2018.

Conclusions/Implications: This innovative study presented an original approach to improve the quality of cancer care for Veterans. Through the Cancer Care Tracking Tool the RN and CPCC actively identified and addressed barriers to cancer care. This may have numerous implications for future studies including, patient satisfaction and enhanced patient outcomes.

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First EDition: ED Visits by Older Patients Increase in the Weeks After a Disaster

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ED Visits by Older Patients Increase in the Weeks After a Disaster

BY KELLIE DESANTIS

Visits to an ED by adults ages 65 years and older increase significantly in the weeks following a disaster, according to a study published in Disaster Medicine and Public Health Preparedness.1

Older adults are vulnerable to the effects of disasters because of their diminished ability to adequately prepare for and respond to the effects of a disaster. Older adults suffering from visual, auditory, proprioceptive, and cognitive impairments are especially vulnerable and have the most difficulty complying with evacuation and preparatory warnings. Individuals with multiple chronic diseases, living in long-term care facilities or suffering from cognitive impairments are among the most vulnerable.

To better understand the impact of natural disasters on this vulnerable population, researchers examined the effects of the 2012 disaster, Hurricane Sandy, on older adults living in New York City (NYC) during the disaster. Researchers turned to the New York State Department of Health (NYSDOH) for data. The NYSDOH compiles a comprehensive database of claims from all ED visits in the Statewide Planning and Research Cooperative System (SPARCS), which is the most complete source for ED utilization in New York state, and includes primary and secondary diagnosis codes and patient addresses.

Researchers evaluated ED utilization by adults 65 years and older in the weeks immediately before and after the Hurricane Sandy landfall. They excluded patients who lived in a nursing home, were incarcerated, or visited an ED associated with a specialty hospital (surgical subspecialty, oncological, or Veterans Administration). By using geographic distribution information available from SPARCS and the NYC Office of Emergency Management evacuation zones, researchers were able to compare the ED utilization for older adults living in the evacuation zones before the landfall of Hurricane Sandy and in the weeks shortly after the storm.

The analysis revealed a significant increase in ED utilization for older adults living in the evacuation zones in the 3 weeks after the storm compared to ED use before the storm. The number of weekly ED visits by older adults from all evacuation zones was 9,852 in the weeks before Hurricane Sandy and increased in the first week after the storm to 10,073. Among the most severely impacted were older adults in evacuation zone one, where ED utilization increased from 552 visits to 1,111 visits. The number of ED visits remained elevated for 3 weeks after the storm but returned to normal by the fourth week.

Researchers suggested several reasons for this increase in ED visits, including seeking refuge in the ED as a result of homelessness due to the disaster, the interruption of ongoing care for chronic illness, environmental exposure, and the lack of preparation for the lasting effect of the disaster.

To improve the response to such a disaster in the future, a NYC Hurricane Sandy Assessment report2 recommended developing a door-to-door service task force for older adults to improve preparedness for this vulnerable population. The task force would be responsible for implementing an action plan to ensure that healthcare services, communication, and provisions for this population continue without interruption in the weeks following a disaster. Legal and regulatory changes would allow for Medicare recipients to be eligible for "early medication refill" and pre-storm "early dialysis" programs to improve the continuity of care of the chronically ill.

1. Malik S, Lee DC, Doran KM, et al. Vulnerability of older adults in disasters: emergency department utilization by geriatric patients after hurricane sandy. Disaster Med Public Health Prep. 2017:1-10. doi:10.1017/dmp.2017.44

2. The City of New York, Office of the Mayor. Hurricane Sandy After Action Report. Published May 2013. http://www.nyc.gov/html/recovery/downlaods/pdf/sandy_aar_5.2.13.pdf. Accessed September 1, 2017.

Digital Rectal Examination of ED Patients with Acute GI Bleeding Cuts Rates of Admissions, Pharmacotherapy, and Endoscopy

BY JEFF BAUER

Patients presenting to the ED with acute gastrointestinal (GI) bleeding who receive a digital rectal examination have significantly lower rates of admissions, pharmacotherapy, and endoscopies, according to a retrospective study published in The American Journal of Medicine. Digital rectal examinations are an established part of the physical examination of a patient with GI bleeding, but physicians often are reluctant to conduct such examinations. Previous studies have found that 10% to 35% of patients with acute GI bleeding do not receive digital rectal examinations.

In the current study, researchers analyzed data from the electronic health records (EHRs) of patients ages 18 years and older who presented to the ED of a single institution with acute GI bleeding, as identified by International Classification of Diseases, Ninth Edition codes. They collected patients’ medical histories, demographic information, and clinical and laboratory data. ED clinician notes were used to determine which patients received a digital rectal examination. The outcomes researchers assessed were hospital admission, intensive care unit (ICU) admission, initiation of medical therapy (a proton pump inhibitor or octreotide), inpatient endoscopy (upper endoscopy or colonoscopy), and packed red blood cell (RBC) transfusion.

Overall, 1237 patients presented with acute GI bleeding. Most patients were Caucasian (49.2%) or Hispanic (38.4%), 44.9% were female, and the median age was 53 years.

Slightly more than one-half of patients (55.6%) received a digital rectal examination. In total, 736 patients were admitted—including 222 admissions to the ICU; 751 were started on a proton pump inhibitor or octreotide, 274 underwent endoscopy, and 321 received an RBC transfusion.

Patients were more likely to receive a digital rectal examination if they were older, Hispanic, or receiving an anticoagulant. Patients were less likely to undergo such examinations if they presented with altered mental status or hematemesis. Compared to patients who did not receive a digital rectal examination, those who did were significantly less likely to be admitted to the hospital (P = .004), to be starting on medical therapy (P = .04), or to undergo endoscopy (P = .02). There were no significant differences between these two groups in terms of ICU admissions, gastroenterology consultations, or transfusions.

Researchers suggested that the 44% rate of patients with acute GI bleeding who did not receive digital rectal examinations was higher than had been reported in previous studies. The difference had been the result of relying solely on ED clinician notes for this data, without including notes from admitting or consulting clinicians. The authors also were unable to determine the reasons these examinations were not conducted.

Shrestha MP, Borgstrom M, Trowers E. Digital rectal examination reduces hospital admissions, endoscopies, and medical therapy in patients with acute gastrointestinal bleeding. Am J Med. 2017;130(7):819-825. doi: 10.1016/j.amjmed.2017.01.036.

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ED Visits by Older Patients Increase in the Weeks After a Disaster

BY KELLIE DESANTIS

Visits to an ED by adults ages 65 years and older increase significantly in the weeks following a disaster, according to a study published in Disaster Medicine and Public Health Preparedness.1

Older adults are vulnerable to the effects of disasters because of their diminished ability to adequately prepare for and respond to the effects of a disaster. Older adults suffering from visual, auditory, proprioceptive, and cognitive impairments are especially vulnerable and have the most difficulty complying with evacuation and preparatory warnings. Individuals with multiple chronic diseases, living in long-term care facilities or suffering from cognitive impairments are among the most vulnerable.

To better understand the impact of natural disasters on this vulnerable population, researchers examined the effects of the 2012 disaster, Hurricane Sandy, on older adults living in New York City (NYC) during the disaster. Researchers turned to the New York State Department of Health (NYSDOH) for data. The NYSDOH compiles a comprehensive database of claims from all ED visits in the Statewide Planning and Research Cooperative System (SPARCS), which is the most complete source for ED utilization in New York state, and includes primary and secondary diagnosis codes and patient addresses.

Researchers evaluated ED utilization by adults 65 years and older in the weeks immediately before and after the Hurricane Sandy landfall. They excluded patients who lived in a nursing home, were incarcerated, or visited an ED associated with a specialty hospital (surgical subspecialty, oncological, or Veterans Administration). By using geographic distribution information available from SPARCS and the NYC Office of Emergency Management evacuation zones, researchers were able to compare the ED utilization for older adults living in the evacuation zones before the landfall of Hurricane Sandy and in the weeks shortly after the storm.

The analysis revealed a significant increase in ED utilization for older adults living in the evacuation zones in the 3 weeks after the storm compared to ED use before the storm. The number of weekly ED visits by older adults from all evacuation zones was 9,852 in the weeks before Hurricane Sandy and increased in the first week after the storm to 10,073. Among the most severely impacted were older adults in evacuation zone one, where ED utilization increased from 552 visits to 1,111 visits. The number of ED visits remained elevated for 3 weeks after the storm but returned to normal by the fourth week.

Researchers suggested several reasons for this increase in ED visits, including seeking refuge in the ED as a result of homelessness due to the disaster, the interruption of ongoing care for chronic illness, environmental exposure, and the lack of preparation for the lasting effect of the disaster.

To improve the response to such a disaster in the future, a NYC Hurricane Sandy Assessment report2 recommended developing a door-to-door service task force for older adults to improve preparedness for this vulnerable population. The task force would be responsible for implementing an action plan to ensure that healthcare services, communication, and provisions for this population continue without interruption in the weeks following a disaster. Legal and regulatory changes would allow for Medicare recipients to be eligible for "early medication refill" and pre-storm "early dialysis" programs to improve the continuity of care of the chronically ill.

1. Malik S, Lee DC, Doran KM, et al. Vulnerability of older adults in disasters: emergency department utilization by geriatric patients after hurricane sandy. Disaster Med Public Health Prep. 2017:1-10. doi:10.1017/dmp.2017.44

2. The City of New York, Office of the Mayor. Hurricane Sandy After Action Report. Published May 2013. http://www.nyc.gov/html/recovery/downlaods/pdf/sandy_aar_5.2.13.pdf. Accessed September 1, 2017.

Digital Rectal Examination of ED Patients with Acute GI Bleeding Cuts Rates of Admissions, Pharmacotherapy, and Endoscopy

BY JEFF BAUER

Patients presenting to the ED with acute gastrointestinal (GI) bleeding who receive a digital rectal examination have significantly lower rates of admissions, pharmacotherapy, and endoscopies, according to a retrospective study published in The American Journal of Medicine. Digital rectal examinations are an established part of the physical examination of a patient with GI bleeding, but physicians often are reluctant to conduct such examinations. Previous studies have found that 10% to 35% of patients with acute GI bleeding do not receive digital rectal examinations.

In the current study, researchers analyzed data from the electronic health records (EHRs) of patients ages 18 years and older who presented to the ED of a single institution with acute GI bleeding, as identified by International Classification of Diseases, Ninth Edition codes. They collected patients’ medical histories, demographic information, and clinical and laboratory data. ED clinician notes were used to determine which patients received a digital rectal examination. The outcomes researchers assessed were hospital admission, intensive care unit (ICU) admission, initiation of medical therapy (a proton pump inhibitor or octreotide), inpatient endoscopy (upper endoscopy or colonoscopy), and packed red blood cell (RBC) transfusion.

Overall, 1237 patients presented with acute GI bleeding. Most patients were Caucasian (49.2%) or Hispanic (38.4%), 44.9% were female, and the median age was 53 years.

Slightly more than one-half of patients (55.6%) received a digital rectal examination. In total, 736 patients were admitted—including 222 admissions to the ICU; 751 were started on a proton pump inhibitor or octreotide, 274 underwent endoscopy, and 321 received an RBC transfusion.

Patients were more likely to receive a digital rectal examination if they were older, Hispanic, or receiving an anticoagulant. Patients were less likely to undergo such examinations if they presented with altered mental status or hematemesis. Compared to patients who did not receive a digital rectal examination, those who did were significantly less likely to be admitted to the hospital (P = .004), to be starting on medical therapy (P = .04), or to undergo endoscopy (P = .02). There were no significant differences between these two groups in terms of ICU admissions, gastroenterology consultations, or transfusions.

Researchers suggested that the 44% rate of patients with acute GI bleeding who did not receive digital rectal examinations was higher than had been reported in previous studies. The difference had been the result of relying solely on ED clinician notes for this data, without including notes from admitting or consulting clinicians. The authors also were unable to determine the reasons these examinations were not conducted.

Shrestha MP, Borgstrom M, Trowers E. Digital rectal examination reduces hospital admissions, endoscopies, and medical therapy in patients with acute gastrointestinal bleeding. Am J Med. 2017;130(7):819-825. doi: 10.1016/j.amjmed.2017.01.036.

ED Visits by Older Patients Increase in the Weeks After a Disaster

BY KELLIE DESANTIS

Visits to an ED by adults ages 65 years and older increase significantly in the weeks following a disaster, according to a study published in Disaster Medicine and Public Health Preparedness.1

Older adults are vulnerable to the effects of disasters because of their diminished ability to adequately prepare for and respond to the effects of a disaster. Older adults suffering from visual, auditory, proprioceptive, and cognitive impairments are especially vulnerable and have the most difficulty complying with evacuation and preparatory warnings. Individuals with multiple chronic diseases, living in long-term care facilities or suffering from cognitive impairments are among the most vulnerable.

To better understand the impact of natural disasters on this vulnerable population, researchers examined the effects of the 2012 disaster, Hurricane Sandy, on older adults living in New York City (NYC) during the disaster. Researchers turned to the New York State Department of Health (NYSDOH) for data. The NYSDOH compiles a comprehensive database of claims from all ED visits in the Statewide Planning and Research Cooperative System (SPARCS), which is the most complete source for ED utilization in New York state, and includes primary and secondary diagnosis codes and patient addresses.

Researchers evaluated ED utilization by adults 65 years and older in the weeks immediately before and after the Hurricane Sandy landfall. They excluded patients who lived in a nursing home, were incarcerated, or visited an ED associated with a specialty hospital (surgical subspecialty, oncological, or Veterans Administration). By using geographic distribution information available from SPARCS and the NYC Office of Emergency Management evacuation zones, researchers were able to compare the ED utilization for older adults living in the evacuation zones before the landfall of Hurricane Sandy and in the weeks shortly after the storm.

The analysis revealed a significant increase in ED utilization for older adults living in the evacuation zones in the 3 weeks after the storm compared to ED use before the storm. The number of weekly ED visits by older adults from all evacuation zones was 9,852 in the weeks before Hurricane Sandy and increased in the first week after the storm to 10,073. Among the most severely impacted were older adults in evacuation zone one, where ED utilization increased from 552 visits to 1,111 visits. The number of ED visits remained elevated for 3 weeks after the storm but returned to normal by the fourth week.

Researchers suggested several reasons for this increase in ED visits, including seeking refuge in the ED as a result of homelessness due to the disaster, the interruption of ongoing care for chronic illness, environmental exposure, and the lack of preparation for the lasting effect of the disaster.

To improve the response to such a disaster in the future, a NYC Hurricane Sandy Assessment report2 recommended developing a door-to-door service task force for older adults to improve preparedness for this vulnerable population. The task force would be responsible for implementing an action plan to ensure that healthcare services, communication, and provisions for this population continue without interruption in the weeks following a disaster. Legal and regulatory changes would allow for Medicare recipients to be eligible for "early medication refill" and pre-storm "early dialysis" programs to improve the continuity of care of the chronically ill.

1. Malik S, Lee DC, Doran KM, et al. Vulnerability of older adults in disasters: emergency department utilization by geriatric patients after hurricane sandy. Disaster Med Public Health Prep. 2017:1-10. doi:10.1017/dmp.2017.44

2. The City of New York, Office of the Mayor. Hurricane Sandy After Action Report. Published May 2013. http://www.nyc.gov/html/recovery/downlaods/pdf/sandy_aar_5.2.13.pdf. Accessed September 1, 2017.

Digital Rectal Examination of ED Patients with Acute GI Bleeding Cuts Rates of Admissions, Pharmacotherapy, and Endoscopy

BY JEFF BAUER

Patients presenting to the ED with acute gastrointestinal (GI) bleeding who receive a digital rectal examination have significantly lower rates of admissions, pharmacotherapy, and endoscopies, according to a retrospective study published in The American Journal of Medicine. Digital rectal examinations are an established part of the physical examination of a patient with GI bleeding, but physicians often are reluctant to conduct such examinations. Previous studies have found that 10% to 35% of patients with acute GI bleeding do not receive digital rectal examinations.

In the current study, researchers analyzed data from the electronic health records (EHRs) of patients ages 18 years and older who presented to the ED of a single institution with acute GI bleeding, as identified by International Classification of Diseases, Ninth Edition codes. They collected patients’ medical histories, demographic information, and clinical and laboratory data. ED clinician notes were used to determine which patients received a digital rectal examination. The outcomes researchers assessed were hospital admission, intensive care unit (ICU) admission, initiation of medical therapy (a proton pump inhibitor or octreotide), inpatient endoscopy (upper endoscopy or colonoscopy), and packed red blood cell (RBC) transfusion.

Overall, 1237 patients presented with acute GI bleeding. Most patients were Caucasian (49.2%) or Hispanic (38.4%), 44.9% were female, and the median age was 53 years.

Slightly more than one-half of patients (55.6%) received a digital rectal examination. In total, 736 patients were admitted—including 222 admissions to the ICU; 751 were started on a proton pump inhibitor or octreotide, 274 underwent endoscopy, and 321 received an RBC transfusion.

Patients were more likely to receive a digital rectal examination if they were older, Hispanic, or receiving an anticoagulant. Patients were less likely to undergo such examinations if they presented with altered mental status or hematemesis. Compared to patients who did not receive a digital rectal examination, those who did were significantly less likely to be admitted to the hospital (P = .004), to be starting on medical therapy (P = .04), or to undergo endoscopy (P = .02). There were no significant differences between these two groups in terms of ICU admissions, gastroenterology consultations, or transfusions.

Researchers suggested that the 44% rate of patients with acute GI bleeding who did not receive digital rectal examinations was higher than had been reported in previous studies. The difference had been the result of relying solely on ED clinician notes for this data, without including notes from admitting or consulting clinicians. The authors also were unable to determine the reasons these examinations were not conducted.

Shrestha MP, Borgstrom M, Trowers E. Digital rectal examination reduces hospital admissions, endoscopies, and medical therapy in patients with acute gastrointestinal bleeding. Am J Med. 2017;130(7):819-825. doi: 10.1016/j.amjmed.2017.01.036.

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Reusing Syringes: Not Safe, Not Cost-Effective

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Nurse in Texas hospital puts patients in danger for bloodborne pathogens by reusing syringes.

In 2015, the Texas Department of State Health Services was notified that a hospital telemetry unit nurse had been reusing saline flush prefilled syringes in patients’ IV lines. Mistakenly believing that it was safe and that she was saving the hospital money, she had been reusing syringes for 6 months.  This was not the hospital’s practice.

Because she had been putting patients at risk for bloodborne pathogens,  the state, regional, and local health departments with consultation from the CDC worked with the hospital to investigate. The hospital notified 392 patients, advising them of potential exposure and offering them free testing for hepatitis B (HBV), hepatitis C (HCV), and HIV. A year after the exposure, 262 had completed initial screening and 182 had completed all recommended testing.

Two patients had newly diagnosed HBV and 2 had HCV. A patient with known preexisting chronic HCV infection had been hospitalized on the telemetry unit on the same day as one of the patients with newly diagnosed HCV. That second patient did not share overlapping days with any patient with known HCV infection, nor did the 2 with newly diagnosed HBV infection share with each other or any other patient with a known HBV infection. No epidemiologic evidence linked the patients with newly diagnosed infections to a potential source patient. But when specimens were tested, the results indicated transmission linkage between the patient with chronic HCV infection and one of the patients with newly diagnosed HCV infection.

Taken together, the CDC concluded, the findings indicated that at least 1 HCV infection was “likely transmitted” in the telemetry unit as a result of the inappropriate reuse and sharing of syringes. The investigation, the CDC adds, illustrates a need for ongoing education and oversight of health care providers regarding safe injection practices.

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Nurse in Texas hospital puts patients in danger for bloodborne pathogens by reusing syringes.
Nurse in Texas hospital puts patients in danger for bloodborne pathogens by reusing syringes.

In 2015, the Texas Department of State Health Services was notified that a hospital telemetry unit nurse had been reusing saline flush prefilled syringes in patients’ IV lines. Mistakenly believing that it was safe and that she was saving the hospital money, she had been reusing syringes for 6 months.  This was not the hospital’s practice.

Because she had been putting patients at risk for bloodborne pathogens,  the state, regional, and local health departments with consultation from the CDC worked with the hospital to investigate. The hospital notified 392 patients, advising them of potential exposure and offering them free testing for hepatitis B (HBV), hepatitis C (HCV), and HIV. A year after the exposure, 262 had completed initial screening and 182 had completed all recommended testing.

Two patients had newly diagnosed HBV and 2 had HCV. A patient with known preexisting chronic HCV infection had been hospitalized on the telemetry unit on the same day as one of the patients with newly diagnosed HCV. That second patient did not share overlapping days with any patient with known HCV infection, nor did the 2 with newly diagnosed HBV infection share with each other or any other patient with a known HBV infection. No epidemiologic evidence linked the patients with newly diagnosed infections to a potential source patient. But when specimens were tested, the results indicated transmission linkage between the patient with chronic HCV infection and one of the patients with newly diagnosed HCV infection.

Taken together, the CDC concluded, the findings indicated that at least 1 HCV infection was “likely transmitted” in the telemetry unit as a result of the inappropriate reuse and sharing of syringes. The investigation, the CDC adds, illustrates a need for ongoing education and oversight of health care providers regarding safe injection practices.

In 2015, the Texas Department of State Health Services was notified that a hospital telemetry unit nurse had been reusing saline flush prefilled syringes in patients’ IV lines. Mistakenly believing that it was safe and that she was saving the hospital money, she had been reusing syringes for 6 months.  This was not the hospital’s practice.

Because she had been putting patients at risk for bloodborne pathogens,  the state, regional, and local health departments with consultation from the CDC worked with the hospital to investigate. The hospital notified 392 patients, advising them of potential exposure and offering them free testing for hepatitis B (HBV), hepatitis C (HCV), and HIV. A year after the exposure, 262 had completed initial screening and 182 had completed all recommended testing.

Two patients had newly diagnosed HBV and 2 had HCV. A patient with known preexisting chronic HCV infection had been hospitalized on the telemetry unit on the same day as one of the patients with newly diagnosed HCV. That second patient did not share overlapping days with any patient with known HCV infection, nor did the 2 with newly diagnosed HBV infection share with each other or any other patient with a known HBV infection. No epidemiologic evidence linked the patients with newly diagnosed infections to a potential source patient. But when specimens were tested, the results indicated transmission linkage between the patient with chronic HCV infection and one of the patients with newly diagnosed HCV infection.

Taken together, the CDC concluded, the findings indicated that at least 1 HCV infection was “likely transmitted” in the telemetry unit as a result of the inappropriate reuse and sharing of syringes. The investigation, the CDC adds, illustrates a need for ongoing education and oversight of health care providers regarding safe injection practices.

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Local Data on Cancer Mortality Reveal Valuable ‘Patterns’ in Changes

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Researchers find that different factors contribute to the variation of mortality rates from state to county across the U.S. for certain cancer types.

Cancer death rates in the U.S. declined by 20% between 1980 and 2014, but not everywhere:  In 160 counties, mortality rose substantially during the same time, according to University of Washington researchers. And those weren’t the only striking variations they found.

The researchers analyzed data on deaths from 29 cancer types. Deaths dropped from about 240 per 100,000 people in 1980 to 192 per 100,000 in 2014. But the researchers say they found “stark” disparities. In 2014, the county with the highest overall cancer mortality had about 7 times as many cancer deaths per 100,000 residents as the county with the lowest overall cancer mortality. For many cancers there were distinct clusters of counties in different regions with especially high mortality, such as in Kentucky, West Virginia, and Alabama.

Related: Major Cancer Death Rates Are Down

The pattern of changes across counties also varied tremendously by type, the researchers say. For instance, breast, cervical, prostate, testicular, and other cancers, mortality rates declined in nearly all counties, whereas liver cancer and mesothelioma increased in nearly all counties.

Previous reports on geographic differences in cancer mortality have focused on variation by state, the researchers say. But the local patterns they found would have been masked by a national or state number. Their innovative approach to aggregating and analyzing the data at the county level has value, they note, because “public health programs and policies are mainly designed and implemented at the local level.”

Related: Demographic and Clinical Characteristics of Patients With Polycythemia Vera (PV) in the U.S. Veterans Population

The policy response from the public health and medical care communities, the researchers add, depends on “parsing these trends into component factors”: trends driven by known risk factors, unexplained trends in incidence, cancers for which screening and early detection can make a major difference, and cancers for which high-quality treatment can make a major difference. Local information, the researchers point out, can be useful for health care practitioners to understand community needs for care and aid in identifying “cancer hot spots” that need more investigation.

In an article for the National Cancer Institute’s newsletter, Eric Durbin, DPh, director of cancer informatics for the Kentucky Cancer Registry at the University of Kentucky Markey Cancer Center, cautioned against basing too many assumptions on local data, especially in rural, sparsely populated areas where small number changes can translate into giant percentages. “We really have no other way to guide cancer prevention and control activities other than using [that] data. Otherwise, you’re just throwing money or resources at a problem without any way to measure the impact,” added Durbin.

Sources:

  1. National Cancer Institute. U.S. cancer mortality rates falling, but some regions left behind, study finds. https://www.cancer.gov/news-events/cancer-currents-blog/2017/cancer-death-disparities. Published February 21, 2017. Accessed March 15, 2017. 
  2. Mokdad AH, Dwyer-Lindgren L, Fitzmaurice C, et al. JAMA. 2017;317(4):388-406.
    doi: 10.1001/jama.2016.20324.
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Researchers find that different factors contribute to the variation of mortality rates from state to county across the U.S. for certain cancer types.
Researchers find that different factors contribute to the variation of mortality rates from state to county across the U.S. for certain cancer types.

Cancer death rates in the U.S. declined by 20% between 1980 and 2014, but not everywhere:  In 160 counties, mortality rose substantially during the same time, according to University of Washington researchers. And those weren’t the only striking variations they found.

The researchers analyzed data on deaths from 29 cancer types. Deaths dropped from about 240 per 100,000 people in 1980 to 192 per 100,000 in 2014. But the researchers say they found “stark” disparities. In 2014, the county with the highest overall cancer mortality had about 7 times as many cancer deaths per 100,000 residents as the county with the lowest overall cancer mortality. For many cancers there were distinct clusters of counties in different regions with especially high mortality, such as in Kentucky, West Virginia, and Alabama.

Related: Major Cancer Death Rates Are Down

The pattern of changes across counties also varied tremendously by type, the researchers say. For instance, breast, cervical, prostate, testicular, and other cancers, mortality rates declined in nearly all counties, whereas liver cancer and mesothelioma increased in nearly all counties.

Previous reports on geographic differences in cancer mortality have focused on variation by state, the researchers say. But the local patterns they found would have been masked by a national or state number. Their innovative approach to aggregating and analyzing the data at the county level has value, they note, because “public health programs and policies are mainly designed and implemented at the local level.”

Related: Demographic and Clinical Characteristics of Patients With Polycythemia Vera (PV) in the U.S. Veterans Population

The policy response from the public health and medical care communities, the researchers add, depends on “parsing these trends into component factors”: trends driven by known risk factors, unexplained trends in incidence, cancers for which screening and early detection can make a major difference, and cancers for which high-quality treatment can make a major difference. Local information, the researchers point out, can be useful for health care practitioners to understand community needs for care and aid in identifying “cancer hot spots” that need more investigation.

In an article for the National Cancer Institute’s newsletter, Eric Durbin, DPh, director of cancer informatics for the Kentucky Cancer Registry at the University of Kentucky Markey Cancer Center, cautioned against basing too many assumptions on local data, especially in rural, sparsely populated areas where small number changes can translate into giant percentages. “We really have no other way to guide cancer prevention and control activities other than using [that] data. Otherwise, you’re just throwing money or resources at a problem without any way to measure the impact,” added Durbin.

Sources:

  1. National Cancer Institute. U.S. cancer mortality rates falling, but some regions left behind, study finds. https://www.cancer.gov/news-events/cancer-currents-blog/2017/cancer-death-disparities. Published February 21, 2017. Accessed March 15, 2017. 
  2. Mokdad AH, Dwyer-Lindgren L, Fitzmaurice C, et al. JAMA. 2017;317(4):388-406.
    doi: 10.1001/jama.2016.20324.

Cancer death rates in the U.S. declined by 20% between 1980 and 2014, but not everywhere:  In 160 counties, mortality rose substantially during the same time, according to University of Washington researchers. And those weren’t the only striking variations they found.

The researchers analyzed data on deaths from 29 cancer types. Deaths dropped from about 240 per 100,000 people in 1980 to 192 per 100,000 in 2014. But the researchers say they found “stark” disparities. In 2014, the county with the highest overall cancer mortality had about 7 times as many cancer deaths per 100,000 residents as the county with the lowest overall cancer mortality. For many cancers there were distinct clusters of counties in different regions with especially high mortality, such as in Kentucky, West Virginia, and Alabama.

Related: Major Cancer Death Rates Are Down

The pattern of changes across counties also varied tremendously by type, the researchers say. For instance, breast, cervical, prostate, testicular, and other cancers, mortality rates declined in nearly all counties, whereas liver cancer and mesothelioma increased in nearly all counties.

Previous reports on geographic differences in cancer mortality have focused on variation by state, the researchers say. But the local patterns they found would have been masked by a national or state number. Their innovative approach to aggregating and analyzing the data at the county level has value, they note, because “public health programs and policies are mainly designed and implemented at the local level.”

Related: Demographic and Clinical Characteristics of Patients With Polycythemia Vera (PV) in the U.S. Veterans Population

The policy response from the public health and medical care communities, the researchers add, depends on “parsing these trends into component factors”: trends driven by known risk factors, unexplained trends in incidence, cancers for which screening and early detection can make a major difference, and cancers for which high-quality treatment can make a major difference. Local information, the researchers point out, can be useful for health care practitioners to understand community needs for care and aid in identifying “cancer hot spots” that need more investigation.

In an article for the National Cancer Institute’s newsletter, Eric Durbin, DPh, director of cancer informatics for the Kentucky Cancer Registry at the University of Kentucky Markey Cancer Center, cautioned against basing too many assumptions on local data, especially in rural, sparsely populated areas where small number changes can translate into giant percentages. “We really have no other way to guide cancer prevention and control activities other than using [that] data. Otherwise, you’re just throwing money or resources at a problem without any way to measure the impact,” added Durbin.

Sources:

  1. National Cancer Institute. U.S. cancer mortality rates falling, but some regions left behind, study finds. https://www.cancer.gov/news-events/cancer-currents-blog/2017/cancer-death-disparities. Published February 21, 2017. Accessed March 15, 2017. 
  2. Mokdad AH, Dwyer-Lindgren L, Fitzmaurice C, et al. JAMA. 2017;317(4):388-406.
    doi: 10.1001/jama.2016.20324.
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Review of the Long-Term Effects of Proton Pump Inhibitors

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Wed, 04/25/2018 - 15:51
Proton pump inhibitors are widely used, but up to 70% of patients take them without an appropriate indication and face risk of adverse effects associated with long-term use.

Proton pump inhibitors (PPIs) are one of the most frequently used drug classes, given that they are readily accessible over-the-counter as well as via prescription. About 100 million PPI prescriptions dispensed annually.1 One study showed that between 25% and 70% of patients taking a PPI do not have an appropriate indication.2 It is common for patients to be prescribed a PPI during and following an inpatient hospital stay. Upon discharge, many of these patients continue taking PPIs without proper documentation or a planned termination date.

The human stomach uses 3 primary neurotransmitters that regulate gastric acid secretion: acetylcholine (ACh), histamine (H), and gastrin (G). The interactions between these neurotransmitters promote and inhibit hydrogen ion (H+) generation. Stimulation of their corresponding receptors draws H+ into parietal cells that line the stomach. Once in the cell, a H+-K+-ATPase (more commonly known as the proton pump) actively transports H+ into the lumen of the stomach. The H+ bind with chlorine ions to form hydrochloric acid, which increases stomach acidity.5 Histamine receptors were thought to be responsible for the greatest degree of stimulation. Hence, histamine type 2-receptor antagonists (H2RAs) became a novel means of therapy to reduce stomach acidity. While utilizing H2RAs was effective, it was theorized the downstream inhibition of the action of all 3 neurotransmitters would serve as a more successful therapy. Therefore, PPIs were developed to target the H+-K+-ATPase Over the past decade, many studies have evaluated the long-term PPI adverse effects (AEs). These include calcium and magnesium malabsorption, vitamin B12 deficiency, Clostridium difficile (C difficile) associated disease (CDAD), and community-acquired pneumonia (CAP). Within the past year, data have become available linking PPI use to dementia and chronic kidney disease (CKD).3,4 The following article reviews literature on the safety of long-term PPI use and proposes recommendations for proper use for their most common indications.

Malabsorption

Calcium & Long-Term Fracture Risk

Calcium is an essential component in bone health and formation. In fact, 99% of all calcium found in the body is stored in bones.6 The primary source of calcium is through diet and oral supplements. After it is ingested, calcium is absorbed from the stomach into the blood in a pH dependent manner. If the pH of the stomach is too high (ie, too basic) calcium is not absorbed into blood and remains in the gastrointestinal (GI) tract for fecal excretion. Without sufficient calcium, the body’s osteoclasts and osteoblasts remain inactive, which hinders proper bone turnover.7

The decrease in acidity leads to calcium malabsorption and increases fracture risk long- term.8 Khalili and colleagues surveyed 80,000 postmenopausal women to measure the incidence of hip fracture in women taking PPIs. The study found that there was a 35% increase in risk of hip fracture among women who regularly used PPIs for at least 2 years (age-adjusted hazard ratio [HR] 1.35; 95% confidence interval [CI], 1.13 -1.62). Adjusted HRs for 4-year and 6- to 8-year use of a PPI was 1.42 (95% CI, 1.05-1.93) and 1.55 (95% CI, 1.03-2.32), respectively, indicating that the longer women were on PPI therapy, the higher the risk of hip fracture. The study also evaluated the time since stopping PPI and the risk of hip fracture. Women who stopped PPI use more than 2 years prior had a similar risk to that of women who never used a PPI, indicating that the effect was reversible.9

Magnesium

Magnesium is an important intracellular ion that has a number of key functions in metabolism and ion transport in the human body. Once ingested, magnesium is absorbed into the bloodstream from the small and large intestines via passive and active transport. Transient receptor potential melastatin 6 (TRPM6) is one of the essential proteins that serve as a transporter for magnesium.10 The high affinity for magnesium of these transporters allows them to maintain adequate levels of magnesium in the blood. In states of low magnesium (hypomagnesemia), the body is at risk for many AEs including seizures, arrhythmias, tetany, and hypotension.11

Proton pump inhibitors have been linked to hypomagnesemia, and recent evaluation has clarified a potential mechanism.12 TRPM6 activity is increased in an acidic environment. When a PPI increases the pH of the stomach, TRPM6 and magnesium levels decrease.12 Luk and colleagues identified 66,102 subjects experiencing AEs while taking a PPI. Hypomagnesemia had a prevalence rate of 1% in these patients. According to the researchers, PPIs were associated with hypomagnesemia and that pantoprazole had the highest incidence among all other PPIs studied (OR, 4.3; 95% CI, 3.3 – 5.7; P < .001).13

Vitamin B12

In recent years, vitamin B12 has been the subject of many studies. An area of concern is vitamin B12’s neurologic effect, as it has been successfully demonstrated that vitamin B12 is essential for proper cognitive function.14 Some data suggest that degeneration is present in parts of the spinal column in patients with cognitive decline or neurologic problems. These lesions are due to improper myelin formation and are specific to vitamin B12 deficiency.15 In 2013 the CDC published the Healthy Brain Initiative, which stated cognitive impairment can be caused by vitamin B12 deficiency.16

Similar to calcium, vitamin B12 needs an acidic environment to be digested and absorbed.17 Vitamin B12 is released from food proteins via gastric acid and pepsin. Once free, the vitamin B12 pairs with R-binders secreted in the stomach. Pancreatic enzymes then degrade this complex into a form that can be absorbed into circulation by the intestine. Given that PPIs reduce the acidity of the stomach, they also reduce the body’s ability to release vitamin B12 from food proteins and be paired with the R-binders.18

In 2013, Lam and colleagues evaluated the association between vitamin B12 deficiency and the use of PPIs and H2RAs. An extensive evaluation was performed on 25,956 patients with a diagnosis of vitamin B12 deficiency and 184,199 patients without. About 12% of patients with vitamin B12 deficiency had received more than a 2-year supply of a PPI, whereas only 7.2% of the patients without vitamin B12 deficiency received a 2-year supply of a PPI. Four point 3 percent of patients with vitamin B12 deficiency received more than a 2-year supply of an H2RA. Only 3.2% of patients without vitamin B12 deficiency received more than a 2-year supply of H2RA. The study concluded that a 2-year or greater history of PPI (OR, 1.65; 95% CI, 1.58-1.73) or H2RA (OR, 1.25; 95% CI, 1.17-1.34) use was associated with vitamin B12 deficiency.19

PPIs and Infections

Clostridium difficile-associated disease

Nationwide CDAD has become a prevalent infection nationwide. In 2011, C difficile caused nearly 500,000 infections and was associated with 29,000 deaths in the U.S.20 One study stated that C difficile is the third most common cause of infectious diarrhea in people aged >75 years.21

C difficile is part of the body’s normal flora in the large intestine. It grows and colonizes in an environment of low acidity. Therefore, in the stomach, where the pH is relatively low, C difficile is unable to colonize.22 When a PPI is introduced, the increased gastric pH increases the risk for CDAD.

Dial and colleagues conducted a multicenter case control study to determine whether gastric acid suppression increases the risk of CDAD. Compared with patients who did not take a gastric acid suppressant, those taking a PPI had a 2.9-fold increase in developing CDAD (95% CI, 2.4-3.4). Comparatively, H2RAs had a 2.0-fold increase for CDAD (95% CI, 1.6 to 2.7). These results correlated with the fact that PPIs have a greater impact on gastric pH than do H2RAs.23

Community-Acquired Pneumonia

Community-acquired pneumonia (CAP) has become a growing concern in the U.S. According to the Infectious Disease Society of America (IDSA) and American Thoracic clinical consensus guidelines, CAP remains one of the top reasons for hospitalizations in the U.S., and about 10% of patients admitted to the hospital for CAP end up in the intensive care unit (ICU).24 In the past, PPIs have been linked to patients’ predisposal for developingCAP.25 Although controversial, available evidence suggests a direct association. In 2008 Sarker and colleagues theorized a mechanism that the acid reduction of the gastric lumen allows for increased bacterial colonization in the upper part of the GI tract.26 Since the acidity of the stomach serves as a defense mechanism against many ingested bacteria, many pathogens will be able to survive in the more basic environment.25

Sarkar and colleagues went on to evaluate 80,000 cases over 15 years. The objective was to examine the association between PPI use and the date of diagnosis of the CAP infection, known as the index date. The study demonstrated that PPI use was not associated with increased CAP risk in the long-term (adjusted odds ratio (OR), 1.02; 95% CI, 0.97-1.08). The study did find a strong increase in the risk of CAP if a PPI was started within 2 days (adjusted OR, 6.53; 95% CI, 3.95-10.80), 7 days (adjusted OR, 3.79; 95% CI, 2.66-5.42), and 14 days (adjusted OR, 3.21; 95% CI, 2.46-4.18) of the index date.26

Four years later, de Jagar and colleagues examined the differences in microbial etiology in CAP patients with and without an active PPI. Over a 4-year study period, 463 individuals were selected with clinical suspicion of CAP. The microbial etiology could be determined in 70% of those patients. The remaining 30% were excluded due to an alternative diagnosis. One of the most likely pathogens to cause a CAP infection is Streptococcus pneumoniae (S pneumonia).27 Patients prescribed a PPI were significantly more likely to be infected with S pneumoniae than those not prescribed a PPI (28% vs 11%). The study concluded that the risk of S pneumoniae in patients taking a PPI was 2.23 times more likely (95% CI, 1.28-3.75).28

 

 

Dementia

In 2040, it is estimated that more than 80 million people will have from dementia.29 This is expected to become a large fiscal burden on the health care system. In 2010, about $604 billion was spent on therapy for dementia worldwide.30 Although no cure for dementia exists, it is more feasible than in previous years to prevent its occurrence. However, many medications, including PPIs, are associated with the development of dementia; therefore, it is important to minimize their use when possible.

As noted earlier vitamin B12 deficiency may lead to cognitive decline. Due to the malabsorption of vitamin B12 that results from PPI use, it is hypothesized that PPIs may be associated with incidence of dementia. Badiola and colleagues discovered that in the brains of mice given a PPI, levels of β-amyloid increased significantly affecting enzymes responsible for cognition.31 In a February 2016, JAMA article, researchers conducted a prospective cohort study evaluating 73,679 patients aged ≥75 years with no dementia at baseline. They went on to assess regular use of a PPI, defined as at least 1 PPI prescription every 3 months, and the incidence of dementia. Patients with regular use of a PPI (≥ 1 PPI prescription every 3 months) had a 44% increase risk of incident dementia (HR, 1.44; 95% CI, 1.36-1.52; P < .001).3 Therefore, it is theorized that avoiding PPI use in the elderly may prevent the development of dementia.

Chronic Kidney Disease

The prevalence of CKD has drastically increased in recent decades. It is estimated that up to 13% of people in the U.S. are affected by CKD.32 Some studies suggest that dosing errors occur at much higher rates in patients with declined glomerular filtration rate (GFR).33 The correct utilization use of medications becomes especially pertinent to this population. Several studies have already linked PPI use to acute interstitial nephritis (AIN) and acute kidney injury (AKI).34-36

Lazarus and colleagues evaluated the association between PPI use and the incidence of CKD. Their analysis was performed in a long-term running population-based cohort and replicated in a separate health care system. In the running cohort, patients receiving a PPI had a 1.45-fold greater chance of developing CKD (95% CI, 1.11-1.90; P = .006). In that same cohort, patients on a PPI had a 1.72-fold increase risk of AKI (95% CI, 1.28-2.30; P < .001).4 Similar outcomes were seen in the replicated cohort. However, the replicated cohort did observe that twice daily dosing of a PPI (adjusted HR, 1.46; CI, 1.28-1.67; P < .001) had a stronger association with CKD than once- daily dosing (adjusted HR, 1.15; 95% CI, 1.09-1.21; P < .001). H2RAs exhibited no association with CKD in the running cohort (HR, 1.15; 97% CI, 0.98-1.36; P = .10) or the replication cohort (HR, 0.93; 95% CI, 0.88-0.99; P = .03).4

Clinical PPI Recommendations

There are several FDA-approved and unapproved indications that warrant PPI therapy. Proton pump inhibitor indications include gastroesophageal reflux disease (GERD), peptic ulcer disease (PUD), Helicobacter pylori, and ulcers associated with the use of nonsteroidal anti-inflammatory drugs (NSAIDs).

GERD Recommendations

Optimal dosing and duration is important with all medications to maximize efficacy and minimize toxicity. In the case of PPIs, dosing and duration are of particularly concern due to the aforementioned AEs. Table illustrates manufacturer-recommended dosing and duration for the most commonly prescribed PPIs. Although these dosing regimens are based on clinical studies, PPIs are commonly prescribed at higher doses and for longer durations. By extending the duration of therapy, the risk of potential long-term AEs increases dramatically. If durations are limited to the recommended window, risk of AEs can be reduced.

Alternative Therapies

There are several strategies that exist to limit the use of PPIs, including lifestyle modifications to prevent GERD, supplementation of an alternative agent to prevent high doses of the PPI, or discontinuing PPI therapy all together. Lifestyle modifications provide additional benefit as monotherapy or to supplement a pharmacologic regimen.

The American Journal of Gastroenterology promoted lifestyle modifications that include:

  • Weight loss for patients with GERD who are overweight and had a recent weight gain;
  • Elevation of the head of the bed (if nighttime symptoms present);
  • Elimination of dietary triggers;
  • Fatty foods, caffeine, chocolate, spicy food, food with high fat content, carbonated beverages, and peppermint;
  • Avoiding tight fitting garments to prevent increase in gastric pressure;
  • Promote salivation through oral lozenges or chewing gum to neutralize refluxed acid;
  • Avoidance of tobacco and alcohol; and
  • Abdominal breathing exercise to strengthen the barrier of the lower esophageal sphincter.37
 

 

The above modifications may reduce the need for pharmacologic therapy, thereby reducing possible of long-term AEs.

If lifestyle modifications alone are not enough, it is reasonable to use a H2RA for acute symptom relief or reduce high doses and frequencies of a PPI. H2RAs are well studied and effective in the management of GERD. According to the American College of Gastroenterology 2013 clinical practice guidelines, H2RAs can serve as an effective maintenance medication to relieve heartburn in patients without erosive disease. The guideline also states that a bedtime H2RA can be used to supplement a once- daily daytime PPI if nighttime reflux exists. This can eliminate the need to exceed manufacturer-recommended doses.37

One of the final challenges to overcome is a patient that has been maintained on chronic PPI therapy. However, caution should be exercised if choosing to discontinue a PPI. In a study by Niklesson and colleagues, after a 4-week course of pantoprazole given to healthy volunteers, those patients with no preexisting symptoms developed dyspeptic symptoms of GERD, such as heartburn, indigestion, and stomach discomfort. This correlation suggests that a rebound hypersecretion occurs after prolonged suppression of the proton pump, and therefore a gradual taper should be used.38 Although no definitive national recommendations on how to taper a patient off of a PPI exist, one suggestion is a 2- to 3-week taper by using a half-dose once daily or full dose on alternate days.39 This strategy has exhibited moderate success rates when used. Oral and written education on symptom management and the administration of H2RAs for infrequent breakthrough symptoms supplemented the reduction of the PPI.

Conclusion

Proton pump inhibitors have become a popular and effective drug class for a multitude of indications. However, it is crucial to recognize the risk of long-term use. It is important to properly assess the need for a PPI and to use appropriate dosing and duration, since prolonged durations and doses above the manufacturer’s recommendations is a primary contributor to long-term consequences. Both package inserts and clinical guidelines serve as valuable resources to help balance the risks and benefits of this medication class and can help guide therapeutic decisions.

References

1. U.S. Food and Drug Administration. FDA Drug Safety Communication: Low magnesium levels can be associated with long-term use of Proton Pump Inhibitor drugs (PPIs). http://www.fda.gov/Drugs/DrugSafety/ucm245011.htm. Updated April 7, 2016. Accessed January 12, 2017.

2. Forgacs I. Overprescribing proton pump inhibitors. BMJ. 2008;336(7634):2-3.

3. Gomm W, von Holt K, Thome F, et al. Association of proton pump inhibitors with risk of dementia. JAMA Neurol. 2016;73(4):410-416.

4. Lazarus B, Chen Y, Wilson FP, et al. Proton pump inhibitor use and the risk of chronic kidney disease. JAMA Intern Med. 2016;176(2):238-246.

5. Wolfe MM, Soll AH. The physiology of gastric acid secretion. N Engl J Med. 1988;319(26):1707-1715.

6. Flynn A. The role of dietary calcium in bone health. Proc Nutr Soc. 2003;62(4):851-858.

7. Mizunashi K, Furukawa Y, Katano K, Abe K. Effect of omeprazole, an inhibitor of H+, K(+)-ATPase, on bone resorption in humans. Calcif Tissue Int. 1993;53(1):21-25.

8. O’Connell MB, Darren DM, Murray AM, Heaney RP, Kerzner LJ. Effects of proton pump inhibitors on calcium carbonate absorption in women: a randomized crossover trial. Am J Med. 2005;118(7):778-781.

9. Khalili H, Huang ES, Jacobson BC, Camargo CA Jr, Feskanich D, Chan AT. Use of proton pump inhibitors and risk of hip fracture in relation to dietary and lifestyle factors: a prospective cohort study. BMJ. 2012;344:e372.

10. Schweigel M, Martens H. Magnesium transport in the gastrointestinal tract. Front Biosci. 2000;5:D666-D677.

11. Hess MW, Hoenderop JG, Bindels RJ, Drenth JP. Systematic review: hypomagnesaemia induced by proton pump inhibition. Aliment Pharmacol Ther. 2012;36(5):405-413.

12. William JH, Danziger J. Proton-pump inhibitor-induced hypomagnesemia: current research and proposed mechanisms. World J Nephrol. 2016;5(2):152-157.

13. Luk CP, Parsons R, Lee YP, Hughes JD. Proton pump inhibitor-associated hypomagnesemia: what do FDA data tell us? Ann Pharmacother. 2013;47(6):773-780.

14. Health Quality Ontario. Vitamin B12 and cognitive function: an evidence-based analysis. Ont Health Technol Assess Ser. 2013;13(23):1-45.

15. Green R, Kinsella LJ. Current concepts in the diagnosis of cobalamin deficiency. Neurology. 1995;45(8):1435-1440.

16. Centers for Disease Control and Prevention. The Healthy Brain Initiative. https://www.cdc.gov/aging/pdf/2013-healthy-brain-initiative.pdf. Accessed January 17, 2017.

17. Toh BH, van Driel IR, Gleeson PA. Pernicious anemia. N Engl J Med. 1997;337(20):1441-1448.

18. Tefferi A, Pruthi RK. The biochemical basis of cobalamin deficiency. Mayo Clin Proc. 1994;69(2):181-186.

19. Lam JR, Schneider JL, Zhao W, Corley DA. Proton pump inhibitor and histamine 2 receptor antagonist use and vitamin B12 deficiency. JAMA. 2013;310(22):2435-2442.

20. Lessa FC, Mu Y, Bamberg WM, et al. Burden of Clostridium difficile infection in the United States. N Engl J Med. 2015;372(9):825-834.

21. National Clostridium difficile Standards Group. National Clostridium difficile Standards Group: report to the Department of Health. J Hosp Infect. 2004;56(suppl 1):1-38.

22. Thorens J, Frohlich F, Schwizer W, et al. Bacterial overgrowth during treatment with omeprazole compared with cimetidine. Gut. 1996;39(1):54-59.

23. Dial S, Delaney JAC, Barkun AN, et al. Use of gastric acid-suppressive agents and the risk of community-acquired Clostridium difficile-associated disease. JAMA. 2005;294(23):2989-2995

24. Mandell LA, Wunderink RG, Anzueto A, et al; Infectious Diseases Society of America; and American Thoracic Society. Infectious Diseases Society of America/American Thoracic Society consensus guidelines on the management of community-acquired pneumonia in adults. Clin Infect Dis. 2007;44(suppl 2):S27-S72.

25. Laheij RJ, Sturkenboom MC, Hassing RJ, Dieleman J, Stricker BH, Jansen JB. Risk of community-acquired pneumonia and use of gastric acid-suppressive drugs. JAMA. 2004;292(16):1955-1960.

26. Sarkar M, Hennessy S, Yang Y. Proton-pump inhibitor use and the risk for community-acquired pneumonia. Ann Intern Med. 2008;149(6):391-398.

27. Waterer GW, Wunderink RG. The influence of the severity of community-acquired pneumonia on the usefulness of blood cultures. Respir Med. 2001;95(1):78-82.

28. de Jagar CP, Wever PC, Gemen EF, et al. Proton pump inhibitor therapy predisposes to community-acquired Streptococcus pneumoniae pneumonia. Aliment Pharmacol Ther. 2012;36(10):941-949.

29. Reitz C, Brayne C, Mayeux R. Epidemiology of Alzheimer disease. Nat Rev Neurol. 2011;7(3):137-152.

30. Wimo A, Jönsson L, Bond J, Prince M, Winblad B; Alzheimer Disease International. The worldwide economic impact of dementia 2010. Alzheimers Dement. 2013;9(1):1-11.

31. Badiola N, Alcalde V, Pujol A, et al. The proton-pump inhibitor lansoprazole enhances amyloid beta production. PLoS One. 2013;8(3):e58537.

32. Stevens LA, Li S, Wang C, et al. Prevalence of CKD and comorbid illness in elderly patients in the United States: results from the Kidney Early Evaluation Program (KEEP). Am J Kidney Dis. 2010;55(3)(suppl 2):S23-S33.

 

 

33. Weir MR, Fink JC. Safety of medical therapy in patients with chronic kidney disease and end-stage renal disease. Curr Opin Nephrol Hypertens 2014;23(3):306-313.

34. Blank ML, Parkin L, Paul C, Herbison P. A nationwide nested case-control study indicates an increased risk of acute interstitial nephritis with proton pump inhibitor use. Kidney Int. 2014;86(4):837-844.

35. Antoniou T, Macdonald EM, Holland S, et al. Proton pump inhibitors and the risk of acute kidney injury in older patients: a population-based cohort study. CMAJ Open. 2015;3(2):E166-E171.

36. Klepser DG, Collier DS, Cochran GL. Proton pump inhibitors and acute kidney injury: a nested case-control study. BMC Nephrol. 2013;14:150.

37. Katz PO, Gerson LB, Vela MF. Guidelines for the diagnosis and management of gastroesophageal reflux disease. Am J Gastroenterol. 2013;108(3):308-328.

38. Niklasson A, Lindström L, Simrén M, Lindberg G, Björnsson E. Dyspeptic symptom development after discontinuation of a proton pump inhibitor: a double-blind placebo-controlled trial. Am J Gastroenterol. 2010;105(7):1531-1537.

39. Haastrup P, Paulsen MS, Begtrup LM, Hansen JM, Jarbøl DE. Strategies for discontinuation of proton pump inhibitors: a systematic review. Fam Pract. 2014;31(6):625-630.

40. Nexium [package insert]. Wilmington, DE: AstraZeneca Pharmaceuticals; 2012.

41. Prevacid [package insert]. Deerfield, IL: Takeda Pharmaceuticals; 2012.

42. Prilosec [package insert]. Wilmington, DE: AstraZeneca Pharmaceuticals; 2012.

43. Protonix [package insert]. Konstanz, Germany: Pfizer; 2012.

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The opinions expressed herein are those of the authors and do not necessarily reflect those of Federal Practitioner, Frontline Medical Communications Inc., the U.S. Government, or any of its agencies. This article may discuss unlabeled or investigational use of certain drugs. Please review the complete prescribing information for specific drugs or drug combinations—including indications, contraindications, warnings, and adverse effects—before administering pharmacologic therapy to patients.

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The opinions expressed herein are those of the authors and do not necessarily reflect those of Federal Practitioner, Frontline Medical Communications Inc., the U.S. Government, or any of its agencies. This article may discuss unlabeled or investigational use of certain drugs. Please review the complete prescribing information for specific drugs or drug combinations—including indications, contraindications, warnings, and adverse effects—before administering pharmacologic therapy to patients.

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The authors report no actual or potential conflicts of interest with regard to this article.

Disclaimer
The opinions expressed herein are those of the authors and do not necessarily reflect those of Federal Practitioner, Frontline Medical Communications Inc., the U.S. Government, or any of its agencies. This article may discuss unlabeled or investigational use of certain drugs. Please review the complete prescribing information for specific drugs or drug combinations—including indications, contraindications, warnings, and adverse effects—before administering pharmacologic therapy to patients.

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Proton pump inhibitors are widely used, but up to 70% of patients take them without an appropriate indication and face risk of adverse effects associated with long-term use.
Proton pump inhibitors are widely used, but up to 70% of patients take them without an appropriate indication and face risk of adverse effects associated with long-term use.

Proton pump inhibitors (PPIs) are one of the most frequently used drug classes, given that they are readily accessible over-the-counter as well as via prescription. About 100 million PPI prescriptions dispensed annually.1 One study showed that between 25% and 70% of patients taking a PPI do not have an appropriate indication.2 It is common for patients to be prescribed a PPI during and following an inpatient hospital stay. Upon discharge, many of these patients continue taking PPIs without proper documentation or a planned termination date.

The human stomach uses 3 primary neurotransmitters that regulate gastric acid secretion: acetylcholine (ACh), histamine (H), and gastrin (G). The interactions between these neurotransmitters promote and inhibit hydrogen ion (H+) generation. Stimulation of their corresponding receptors draws H+ into parietal cells that line the stomach. Once in the cell, a H+-K+-ATPase (more commonly known as the proton pump) actively transports H+ into the lumen of the stomach. The H+ bind with chlorine ions to form hydrochloric acid, which increases stomach acidity.5 Histamine receptors were thought to be responsible for the greatest degree of stimulation. Hence, histamine type 2-receptor antagonists (H2RAs) became a novel means of therapy to reduce stomach acidity. While utilizing H2RAs was effective, it was theorized the downstream inhibition of the action of all 3 neurotransmitters would serve as a more successful therapy. Therefore, PPIs were developed to target the H+-K+-ATPase Over the past decade, many studies have evaluated the long-term PPI adverse effects (AEs). These include calcium and magnesium malabsorption, vitamin B12 deficiency, Clostridium difficile (C difficile) associated disease (CDAD), and community-acquired pneumonia (CAP). Within the past year, data have become available linking PPI use to dementia and chronic kidney disease (CKD).3,4 The following article reviews literature on the safety of long-term PPI use and proposes recommendations for proper use for their most common indications.

Malabsorption

Calcium & Long-Term Fracture Risk

Calcium is an essential component in bone health and formation. In fact, 99% of all calcium found in the body is stored in bones.6 The primary source of calcium is through diet and oral supplements. After it is ingested, calcium is absorbed from the stomach into the blood in a pH dependent manner. If the pH of the stomach is too high (ie, too basic) calcium is not absorbed into blood and remains in the gastrointestinal (GI) tract for fecal excretion. Without sufficient calcium, the body’s osteoclasts and osteoblasts remain inactive, which hinders proper bone turnover.7

The decrease in acidity leads to calcium malabsorption and increases fracture risk long- term.8 Khalili and colleagues surveyed 80,000 postmenopausal women to measure the incidence of hip fracture in women taking PPIs. The study found that there was a 35% increase in risk of hip fracture among women who regularly used PPIs for at least 2 years (age-adjusted hazard ratio [HR] 1.35; 95% confidence interval [CI], 1.13 -1.62). Adjusted HRs for 4-year and 6- to 8-year use of a PPI was 1.42 (95% CI, 1.05-1.93) and 1.55 (95% CI, 1.03-2.32), respectively, indicating that the longer women were on PPI therapy, the higher the risk of hip fracture. The study also evaluated the time since stopping PPI and the risk of hip fracture. Women who stopped PPI use more than 2 years prior had a similar risk to that of women who never used a PPI, indicating that the effect was reversible.9

Magnesium

Magnesium is an important intracellular ion that has a number of key functions in metabolism and ion transport in the human body. Once ingested, magnesium is absorbed into the bloodstream from the small and large intestines via passive and active transport. Transient receptor potential melastatin 6 (TRPM6) is one of the essential proteins that serve as a transporter for magnesium.10 The high affinity for magnesium of these transporters allows them to maintain adequate levels of magnesium in the blood. In states of low magnesium (hypomagnesemia), the body is at risk for many AEs including seizures, arrhythmias, tetany, and hypotension.11

Proton pump inhibitors have been linked to hypomagnesemia, and recent evaluation has clarified a potential mechanism.12 TRPM6 activity is increased in an acidic environment. When a PPI increases the pH of the stomach, TRPM6 and magnesium levels decrease.12 Luk and colleagues identified 66,102 subjects experiencing AEs while taking a PPI. Hypomagnesemia had a prevalence rate of 1% in these patients. According to the researchers, PPIs were associated with hypomagnesemia and that pantoprazole had the highest incidence among all other PPIs studied (OR, 4.3; 95% CI, 3.3 – 5.7; P < .001).13

Vitamin B12

In recent years, vitamin B12 has been the subject of many studies. An area of concern is vitamin B12’s neurologic effect, as it has been successfully demonstrated that vitamin B12 is essential for proper cognitive function.14 Some data suggest that degeneration is present in parts of the spinal column in patients with cognitive decline or neurologic problems. These lesions are due to improper myelin formation and are specific to vitamin B12 deficiency.15 In 2013 the CDC published the Healthy Brain Initiative, which stated cognitive impairment can be caused by vitamin B12 deficiency.16

Similar to calcium, vitamin B12 needs an acidic environment to be digested and absorbed.17 Vitamin B12 is released from food proteins via gastric acid and pepsin. Once free, the vitamin B12 pairs with R-binders secreted in the stomach. Pancreatic enzymes then degrade this complex into a form that can be absorbed into circulation by the intestine. Given that PPIs reduce the acidity of the stomach, they also reduce the body’s ability to release vitamin B12 from food proteins and be paired with the R-binders.18

In 2013, Lam and colleagues evaluated the association between vitamin B12 deficiency and the use of PPIs and H2RAs. An extensive evaluation was performed on 25,956 patients with a diagnosis of vitamin B12 deficiency and 184,199 patients without. About 12% of patients with vitamin B12 deficiency had received more than a 2-year supply of a PPI, whereas only 7.2% of the patients without vitamin B12 deficiency received a 2-year supply of a PPI. Four point 3 percent of patients with vitamin B12 deficiency received more than a 2-year supply of an H2RA. Only 3.2% of patients without vitamin B12 deficiency received more than a 2-year supply of H2RA. The study concluded that a 2-year or greater history of PPI (OR, 1.65; 95% CI, 1.58-1.73) or H2RA (OR, 1.25; 95% CI, 1.17-1.34) use was associated with vitamin B12 deficiency.19

PPIs and Infections

Clostridium difficile-associated disease

Nationwide CDAD has become a prevalent infection nationwide. In 2011, C difficile caused nearly 500,000 infections and was associated with 29,000 deaths in the U.S.20 One study stated that C difficile is the third most common cause of infectious diarrhea in people aged >75 years.21

C difficile is part of the body’s normal flora in the large intestine. It grows and colonizes in an environment of low acidity. Therefore, in the stomach, where the pH is relatively low, C difficile is unable to colonize.22 When a PPI is introduced, the increased gastric pH increases the risk for CDAD.

Dial and colleagues conducted a multicenter case control study to determine whether gastric acid suppression increases the risk of CDAD. Compared with patients who did not take a gastric acid suppressant, those taking a PPI had a 2.9-fold increase in developing CDAD (95% CI, 2.4-3.4). Comparatively, H2RAs had a 2.0-fold increase for CDAD (95% CI, 1.6 to 2.7). These results correlated with the fact that PPIs have a greater impact on gastric pH than do H2RAs.23

Community-Acquired Pneumonia

Community-acquired pneumonia (CAP) has become a growing concern in the U.S. According to the Infectious Disease Society of America (IDSA) and American Thoracic clinical consensus guidelines, CAP remains one of the top reasons for hospitalizations in the U.S., and about 10% of patients admitted to the hospital for CAP end up in the intensive care unit (ICU).24 In the past, PPIs have been linked to patients’ predisposal for developingCAP.25 Although controversial, available evidence suggests a direct association. In 2008 Sarker and colleagues theorized a mechanism that the acid reduction of the gastric lumen allows for increased bacterial colonization in the upper part of the GI tract.26 Since the acidity of the stomach serves as a defense mechanism against many ingested bacteria, many pathogens will be able to survive in the more basic environment.25

Sarkar and colleagues went on to evaluate 80,000 cases over 15 years. The objective was to examine the association between PPI use and the date of diagnosis of the CAP infection, known as the index date. The study demonstrated that PPI use was not associated with increased CAP risk in the long-term (adjusted odds ratio (OR), 1.02; 95% CI, 0.97-1.08). The study did find a strong increase in the risk of CAP if a PPI was started within 2 days (adjusted OR, 6.53; 95% CI, 3.95-10.80), 7 days (adjusted OR, 3.79; 95% CI, 2.66-5.42), and 14 days (adjusted OR, 3.21; 95% CI, 2.46-4.18) of the index date.26

Four years later, de Jagar and colleagues examined the differences in microbial etiology in CAP patients with and without an active PPI. Over a 4-year study period, 463 individuals were selected with clinical suspicion of CAP. The microbial etiology could be determined in 70% of those patients. The remaining 30% were excluded due to an alternative diagnosis. One of the most likely pathogens to cause a CAP infection is Streptococcus pneumoniae (S pneumonia).27 Patients prescribed a PPI were significantly more likely to be infected with S pneumoniae than those not prescribed a PPI (28% vs 11%). The study concluded that the risk of S pneumoniae in patients taking a PPI was 2.23 times more likely (95% CI, 1.28-3.75).28

 

 

Dementia

In 2040, it is estimated that more than 80 million people will have from dementia.29 This is expected to become a large fiscal burden on the health care system. In 2010, about $604 billion was spent on therapy for dementia worldwide.30 Although no cure for dementia exists, it is more feasible than in previous years to prevent its occurrence. However, many medications, including PPIs, are associated with the development of dementia; therefore, it is important to minimize their use when possible.

As noted earlier vitamin B12 deficiency may lead to cognitive decline. Due to the malabsorption of vitamin B12 that results from PPI use, it is hypothesized that PPIs may be associated with incidence of dementia. Badiola and colleagues discovered that in the brains of mice given a PPI, levels of β-amyloid increased significantly affecting enzymes responsible for cognition.31 In a February 2016, JAMA article, researchers conducted a prospective cohort study evaluating 73,679 patients aged ≥75 years with no dementia at baseline. They went on to assess regular use of a PPI, defined as at least 1 PPI prescription every 3 months, and the incidence of dementia. Patients with regular use of a PPI (≥ 1 PPI prescription every 3 months) had a 44% increase risk of incident dementia (HR, 1.44; 95% CI, 1.36-1.52; P < .001).3 Therefore, it is theorized that avoiding PPI use in the elderly may prevent the development of dementia.

Chronic Kidney Disease

The prevalence of CKD has drastically increased in recent decades. It is estimated that up to 13% of people in the U.S. are affected by CKD.32 Some studies suggest that dosing errors occur at much higher rates in patients with declined glomerular filtration rate (GFR).33 The correct utilization use of medications becomes especially pertinent to this population. Several studies have already linked PPI use to acute interstitial nephritis (AIN) and acute kidney injury (AKI).34-36

Lazarus and colleagues evaluated the association between PPI use and the incidence of CKD. Their analysis was performed in a long-term running population-based cohort and replicated in a separate health care system. In the running cohort, patients receiving a PPI had a 1.45-fold greater chance of developing CKD (95% CI, 1.11-1.90; P = .006). In that same cohort, patients on a PPI had a 1.72-fold increase risk of AKI (95% CI, 1.28-2.30; P < .001).4 Similar outcomes were seen in the replicated cohort. However, the replicated cohort did observe that twice daily dosing of a PPI (adjusted HR, 1.46; CI, 1.28-1.67; P < .001) had a stronger association with CKD than once- daily dosing (adjusted HR, 1.15; 95% CI, 1.09-1.21; P < .001). H2RAs exhibited no association with CKD in the running cohort (HR, 1.15; 97% CI, 0.98-1.36; P = .10) or the replication cohort (HR, 0.93; 95% CI, 0.88-0.99; P = .03).4

Clinical PPI Recommendations

There are several FDA-approved and unapproved indications that warrant PPI therapy. Proton pump inhibitor indications include gastroesophageal reflux disease (GERD), peptic ulcer disease (PUD), Helicobacter pylori, and ulcers associated with the use of nonsteroidal anti-inflammatory drugs (NSAIDs).

GERD Recommendations

Optimal dosing and duration is important with all medications to maximize efficacy and minimize toxicity. In the case of PPIs, dosing and duration are of particularly concern due to the aforementioned AEs. Table illustrates manufacturer-recommended dosing and duration for the most commonly prescribed PPIs. Although these dosing regimens are based on clinical studies, PPIs are commonly prescribed at higher doses and for longer durations. By extending the duration of therapy, the risk of potential long-term AEs increases dramatically. If durations are limited to the recommended window, risk of AEs can be reduced.

Alternative Therapies

There are several strategies that exist to limit the use of PPIs, including lifestyle modifications to prevent GERD, supplementation of an alternative agent to prevent high doses of the PPI, or discontinuing PPI therapy all together. Lifestyle modifications provide additional benefit as monotherapy or to supplement a pharmacologic regimen.

The American Journal of Gastroenterology promoted lifestyle modifications that include:

  • Weight loss for patients with GERD who are overweight and had a recent weight gain;
  • Elevation of the head of the bed (if nighttime symptoms present);
  • Elimination of dietary triggers;
  • Fatty foods, caffeine, chocolate, spicy food, food with high fat content, carbonated beverages, and peppermint;
  • Avoiding tight fitting garments to prevent increase in gastric pressure;
  • Promote salivation through oral lozenges or chewing gum to neutralize refluxed acid;
  • Avoidance of tobacco and alcohol; and
  • Abdominal breathing exercise to strengthen the barrier of the lower esophageal sphincter.37
 

 

The above modifications may reduce the need for pharmacologic therapy, thereby reducing possible of long-term AEs.

If lifestyle modifications alone are not enough, it is reasonable to use a H2RA for acute symptom relief or reduce high doses and frequencies of a PPI. H2RAs are well studied and effective in the management of GERD. According to the American College of Gastroenterology 2013 clinical practice guidelines, H2RAs can serve as an effective maintenance medication to relieve heartburn in patients without erosive disease. The guideline also states that a bedtime H2RA can be used to supplement a once- daily daytime PPI if nighttime reflux exists. This can eliminate the need to exceed manufacturer-recommended doses.37

One of the final challenges to overcome is a patient that has been maintained on chronic PPI therapy. However, caution should be exercised if choosing to discontinue a PPI. In a study by Niklesson and colleagues, after a 4-week course of pantoprazole given to healthy volunteers, those patients with no preexisting symptoms developed dyspeptic symptoms of GERD, such as heartburn, indigestion, and stomach discomfort. This correlation suggests that a rebound hypersecretion occurs after prolonged suppression of the proton pump, and therefore a gradual taper should be used.38 Although no definitive national recommendations on how to taper a patient off of a PPI exist, one suggestion is a 2- to 3-week taper by using a half-dose once daily or full dose on alternate days.39 This strategy has exhibited moderate success rates when used. Oral and written education on symptom management and the administration of H2RAs for infrequent breakthrough symptoms supplemented the reduction of the PPI.

Conclusion

Proton pump inhibitors have become a popular and effective drug class for a multitude of indications. However, it is crucial to recognize the risk of long-term use. It is important to properly assess the need for a PPI and to use appropriate dosing and duration, since prolonged durations and doses above the manufacturer’s recommendations is a primary contributor to long-term consequences. Both package inserts and clinical guidelines serve as valuable resources to help balance the risks and benefits of this medication class and can help guide therapeutic decisions.

Proton pump inhibitors (PPIs) are one of the most frequently used drug classes, given that they are readily accessible over-the-counter as well as via prescription. About 100 million PPI prescriptions dispensed annually.1 One study showed that between 25% and 70% of patients taking a PPI do not have an appropriate indication.2 It is common for patients to be prescribed a PPI during and following an inpatient hospital stay. Upon discharge, many of these patients continue taking PPIs without proper documentation or a planned termination date.

The human stomach uses 3 primary neurotransmitters that regulate gastric acid secretion: acetylcholine (ACh), histamine (H), and gastrin (G). The interactions between these neurotransmitters promote and inhibit hydrogen ion (H+) generation. Stimulation of their corresponding receptors draws H+ into parietal cells that line the stomach. Once in the cell, a H+-K+-ATPase (more commonly known as the proton pump) actively transports H+ into the lumen of the stomach. The H+ bind with chlorine ions to form hydrochloric acid, which increases stomach acidity.5 Histamine receptors were thought to be responsible for the greatest degree of stimulation. Hence, histamine type 2-receptor antagonists (H2RAs) became a novel means of therapy to reduce stomach acidity. While utilizing H2RAs was effective, it was theorized the downstream inhibition of the action of all 3 neurotransmitters would serve as a more successful therapy. Therefore, PPIs were developed to target the H+-K+-ATPase Over the past decade, many studies have evaluated the long-term PPI adverse effects (AEs). These include calcium and magnesium malabsorption, vitamin B12 deficiency, Clostridium difficile (C difficile) associated disease (CDAD), and community-acquired pneumonia (CAP). Within the past year, data have become available linking PPI use to dementia and chronic kidney disease (CKD).3,4 The following article reviews literature on the safety of long-term PPI use and proposes recommendations for proper use for their most common indications.

Malabsorption

Calcium & Long-Term Fracture Risk

Calcium is an essential component in bone health and formation. In fact, 99% of all calcium found in the body is stored in bones.6 The primary source of calcium is through diet and oral supplements. After it is ingested, calcium is absorbed from the stomach into the blood in a pH dependent manner. If the pH of the stomach is too high (ie, too basic) calcium is not absorbed into blood and remains in the gastrointestinal (GI) tract for fecal excretion. Without sufficient calcium, the body’s osteoclasts and osteoblasts remain inactive, which hinders proper bone turnover.7

The decrease in acidity leads to calcium malabsorption and increases fracture risk long- term.8 Khalili and colleagues surveyed 80,000 postmenopausal women to measure the incidence of hip fracture in women taking PPIs. The study found that there was a 35% increase in risk of hip fracture among women who regularly used PPIs for at least 2 years (age-adjusted hazard ratio [HR] 1.35; 95% confidence interval [CI], 1.13 -1.62). Adjusted HRs for 4-year and 6- to 8-year use of a PPI was 1.42 (95% CI, 1.05-1.93) and 1.55 (95% CI, 1.03-2.32), respectively, indicating that the longer women were on PPI therapy, the higher the risk of hip fracture. The study also evaluated the time since stopping PPI and the risk of hip fracture. Women who stopped PPI use more than 2 years prior had a similar risk to that of women who never used a PPI, indicating that the effect was reversible.9

Magnesium

Magnesium is an important intracellular ion that has a number of key functions in metabolism and ion transport in the human body. Once ingested, magnesium is absorbed into the bloodstream from the small and large intestines via passive and active transport. Transient receptor potential melastatin 6 (TRPM6) is one of the essential proteins that serve as a transporter for magnesium.10 The high affinity for magnesium of these transporters allows them to maintain adequate levels of magnesium in the blood. In states of low magnesium (hypomagnesemia), the body is at risk for many AEs including seizures, arrhythmias, tetany, and hypotension.11

Proton pump inhibitors have been linked to hypomagnesemia, and recent evaluation has clarified a potential mechanism.12 TRPM6 activity is increased in an acidic environment. When a PPI increases the pH of the stomach, TRPM6 and magnesium levels decrease.12 Luk and colleagues identified 66,102 subjects experiencing AEs while taking a PPI. Hypomagnesemia had a prevalence rate of 1% in these patients. According to the researchers, PPIs were associated with hypomagnesemia and that pantoprazole had the highest incidence among all other PPIs studied (OR, 4.3; 95% CI, 3.3 – 5.7; P < .001).13

Vitamin B12

In recent years, vitamin B12 has been the subject of many studies. An area of concern is vitamin B12’s neurologic effect, as it has been successfully demonstrated that vitamin B12 is essential for proper cognitive function.14 Some data suggest that degeneration is present in parts of the spinal column in patients with cognitive decline or neurologic problems. These lesions are due to improper myelin formation and are specific to vitamin B12 deficiency.15 In 2013 the CDC published the Healthy Brain Initiative, which stated cognitive impairment can be caused by vitamin B12 deficiency.16

Similar to calcium, vitamin B12 needs an acidic environment to be digested and absorbed.17 Vitamin B12 is released from food proteins via gastric acid and pepsin. Once free, the vitamin B12 pairs with R-binders secreted in the stomach. Pancreatic enzymes then degrade this complex into a form that can be absorbed into circulation by the intestine. Given that PPIs reduce the acidity of the stomach, they also reduce the body’s ability to release vitamin B12 from food proteins and be paired with the R-binders.18

In 2013, Lam and colleagues evaluated the association between vitamin B12 deficiency and the use of PPIs and H2RAs. An extensive evaluation was performed on 25,956 patients with a diagnosis of vitamin B12 deficiency and 184,199 patients without. About 12% of patients with vitamin B12 deficiency had received more than a 2-year supply of a PPI, whereas only 7.2% of the patients without vitamin B12 deficiency received a 2-year supply of a PPI. Four point 3 percent of patients with vitamin B12 deficiency received more than a 2-year supply of an H2RA. Only 3.2% of patients without vitamin B12 deficiency received more than a 2-year supply of H2RA. The study concluded that a 2-year or greater history of PPI (OR, 1.65; 95% CI, 1.58-1.73) or H2RA (OR, 1.25; 95% CI, 1.17-1.34) use was associated with vitamin B12 deficiency.19

PPIs and Infections

Clostridium difficile-associated disease

Nationwide CDAD has become a prevalent infection nationwide. In 2011, C difficile caused nearly 500,000 infections and was associated with 29,000 deaths in the U.S.20 One study stated that C difficile is the third most common cause of infectious diarrhea in people aged >75 years.21

C difficile is part of the body’s normal flora in the large intestine. It grows and colonizes in an environment of low acidity. Therefore, in the stomach, where the pH is relatively low, C difficile is unable to colonize.22 When a PPI is introduced, the increased gastric pH increases the risk for CDAD.

Dial and colleagues conducted a multicenter case control study to determine whether gastric acid suppression increases the risk of CDAD. Compared with patients who did not take a gastric acid suppressant, those taking a PPI had a 2.9-fold increase in developing CDAD (95% CI, 2.4-3.4). Comparatively, H2RAs had a 2.0-fold increase for CDAD (95% CI, 1.6 to 2.7). These results correlated with the fact that PPIs have a greater impact on gastric pH than do H2RAs.23

Community-Acquired Pneumonia

Community-acquired pneumonia (CAP) has become a growing concern in the U.S. According to the Infectious Disease Society of America (IDSA) and American Thoracic clinical consensus guidelines, CAP remains one of the top reasons for hospitalizations in the U.S., and about 10% of patients admitted to the hospital for CAP end up in the intensive care unit (ICU).24 In the past, PPIs have been linked to patients’ predisposal for developingCAP.25 Although controversial, available evidence suggests a direct association. In 2008 Sarker and colleagues theorized a mechanism that the acid reduction of the gastric lumen allows for increased bacterial colonization in the upper part of the GI tract.26 Since the acidity of the stomach serves as a defense mechanism against many ingested bacteria, many pathogens will be able to survive in the more basic environment.25

Sarkar and colleagues went on to evaluate 80,000 cases over 15 years. The objective was to examine the association between PPI use and the date of diagnosis of the CAP infection, known as the index date. The study demonstrated that PPI use was not associated with increased CAP risk in the long-term (adjusted odds ratio (OR), 1.02; 95% CI, 0.97-1.08). The study did find a strong increase in the risk of CAP if a PPI was started within 2 days (adjusted OR, 6.53; 95% CI, 3.95-10.80), 7 days (adjusted OR, 3.79; 95% CI, 2.66-5.42), and 14 days (adjusted OR, 3.21; 95% CI, 2.46-4.18) of the index date.26

Four years later, de Jagar and colleagues examined the differences in microbial etiology in CAP patients with and without an active PPI. Over a 4-year study period, 463 individuals were selected with clinical suspicion of CAP. The microbial etiology could be determined in 70% of those patients. The remaining 30% were excluded due to an alternative diagnosis. One of the most likely pathogens to cause a CAP infection is Streptococcus pneumoniae (S pneumonia).27 Patients prescribed a PPI were significantly more likely to be infected with S pneumoniae than those not prescribed a PPI (28% vs 11%). The study concluded that the risk of S pneumoniae in patients taking a PPI was 2.23 times more likely (95% CI, 1.28-3.75).28

 

 

Dementia

In 2040, it is estimated that more than 80 million people will have from dementia.29 This is expected to become a large fiscal burden on the health care system. In 2010, about $604 billion was spent on therapy for dementia worldwide.30 Although no cure for dementia exists, it is more feasible than in previous years to prevent its occurrence. However, many medications, including PPIs, are associated with the development of dementia; therefore, it is important to minimize their use when possible.

As noted earlier vitamin B12 deficiency may lead to cognitive decline. Due to the malabsorption of vitamin B12 that results from PPI use, it is hypothesized that PPIs may be associated with incidence of dementia. Badiola and colleagues discovered that in the brains of mice given a PPI, levels of β-amyloid increased significantly affecting enzymes responsible for cognition.31 In a February 2016, JAMA article, researchers conducted a prospective cohort study evaluating 73,679 patients aged ≥75 years with no dementia at baseline. They went on to assess regular use of a PPI, defined as at least 1 PPI prescription every 3 months, and the incidence of dementia. Patients with regular use of a PPI (≥ 1 PPI prescription every 3 months) had a 44% increase risk of incident dementia (HR, 1.44; 95% CI, 1.36-1.52; P < .001).3 Therefore, it is theorized that avoiding PPI use in the elderly may prevent the development of dementia.

Chronic Kidney Disease

The prevalence of CKD has drastically increased in recent decades. It is estimated that up to 13% of people in the U.S. are affected by CKD.32 Some studies suggest that dosing errors occur at much higher rates in patients with declined glomerular filtration rate (GFR).33 The correct utilization use of medications becomes especially pertinent to this population. Several studies have already linked PPI use to acute interstitial nephritis (AIN) and acute kidney injury (AKI).34-36

Lazarus and colleagues evaluated the association between PPI use and the incidence of CKD. Their analysis was performed in a long-term running population-based cohort and replicated in a separate health care system. In the running cohort, patients receiving a PPI had a 1.45-fold greater chance of developing CKD (95% CI, 1.11-1.90; P = .006). In that same cohort, patients on a PPI had a 1.72-fold increase risk of AKI (95% CI, 1.28-2.30; P < .001).4 Similar outcomes were seen in the replicated cohort. However, the replicated cohort did observe that twice daily dosing of a PPI (adjusted HR, 1.46; CI, 1.28-1.67; P < .001) had a stronger association with CKD than once- daily dosing (adjusted HR, 1.15; 95% CI, 1.09-1.21; P < .001). H2RAs exhibited no association with CKD in the running cohort (HR, 1.15; 97% CI, 0.98-1.36; P = .10) or the replication cohort (HR, 0.93; 95% CI, 0.88-0.99; P = .03).4

Clinical PPI Recommendations

There are several FDA-approved and unapproved indications that warrant PPI therapy. Proton pump inhibitor indications include gastroesophageal reflux disease (GERD), peptic ulcer disease (PUD), Helicobacter pylori, and ulcers associated with the use of nonsteroidal anti-inflammatory drugs (NSAIDs).

GERD Recommendations

Optimal dosing and duration is important with all medications to maximize efficacy and minimize toxicity. In the case of PPIs, dosing and duration are of particularly concern due to the aforementioned AEs. Table illustrates manufacturer-recommended dosing and duration for the most commonly prescribed PPIs. Although these dosing regimens are based on clinical studies, PPIs are commonly prescribed at higher doses and for longer durations. By extending the duration of therapy, the risk of potential long-term AEs increases dramatically. If durations are limited to the recommended window, risk of AEs can be reduced.

Alternative Therapies

There are several strategies that exist to limit the use of PPIs, including lifestyle modifications to prevent GERD, supplementation of an alternative agent to prevent high doses of the PPI, or discontinuing PPI therapy all together. Lifestyle modifications provide additional benefit as monotherapy or to supplement a pharmacologic regimen.

The American Journal of Gastroenterology promoted lifestyle modifications that include:

  • Weight loss for patients with GERD who are overweight and had a recent weight gain;
  • Elevation of the head of the bed (if nighttime symptoms present);
  • Elimination of dietary triggers;
  • Fatty foods, caffeine, chocolate, spicy food, food with high fat content, carbonated beverages, and peppermint;
  • Avoiding tight fitting garments to prevent increase in gastric pressure;
  • Promote salivation through oral lozenges or chewing gum to neutralize refluxed acid;
  • Avoidance of tobacco and alcohol; and
  • Abdominal breathing exercise to strengthen the barrier of the lower esophageal sphincter.37
 

 

The above modifications may reduce the need for pharmacologic therapy, thereby reducing possible of long-term AEs.

If lifestyle modifications alone are not enough, it is reasonable to use a H2RA for acute symptom relief or reduce high doses and frequencies of a PPI. H2RAs are well studied and effective in the management of GERD. According to the American College of Gastroenterology 2013 clinical practice guidelines, H2RAs can serve as an effective maintenance medication to relieve heartburn in patients without erosive disease. The guideline also states that a bedtime H2RA can be used to supplement a once- daily daytime PPI if nighttime reflux exists. This can eliminate the need to exceed manufacturer-recommended doses.37

One of the final challenges to overcome is a patient that has been maintained on chronic PPI therapy. However, caution should be exercised if choosing to discontinue a PPI. In a study by Niklesson and colleagues, after a 4-week course of pantoprazole given to healthy volunteers, those patients with no preexisting symptoms developed dyspeptic symptoms of GERD, such as heartburn, indigestion, and stomach discomfort. This correlation suggests that a rebound hypersecretion occurs after prolonged suppression of the proton pump, and therefore a gradual taper should be used.38 Although no definitive national recommendations on how to taper a patient off of a PPI exist, one suggestion is a 2- to 3-week taper by using a half-dose once daily or full dose on alternate days.39 This strategy has exhibited moderate success rates when used. Oral and written education on symptom management and the administration of H2RAs for infrequent breakthrough symptoms supplemented the reduction of the PPI.

Conclusion

Proton pump inhibitors have become a popular and effective drug class for a multitude of indications. However, it is crucial to recognize the risk of long-term use. It is important to properly assess the need for a PPI and to use appropriate dosing and duration, since prolonged durations and doses above the manufacturer’s recommendations is a primary contributor to long-term consequences. Both package inserts and clinical guidelines serve as valuable resources to help balance the risks and benefits of this medication class and can help guide therapeutic decisions.

References

1. U.S. Food and Drug Administration. FDA Drug Safety Communication: Low magnesium levels can be associated with long-term use of Proton Pump Inhibitor drugs (PPIs). http://www.fda.gov/Drugs/DrugSafety/ucm245011.htm. Updated April 7, 2016. Accessed January 12, 2017.

2. Forgacs I. Overprescribing proton pump inhibitors. BMJ. 2008;336(7634):2-3.

3. Gomm W, von Holt K, Thome F, et al. Association of proton pump inhibitors with risk of dementia. JAMA Neurol. 2016;73(4):410-416.

4. Lazarus B, Chen Y, Wilson FP, et al. Proton pump inhibitor use and the risk of chronic kidney disease. JAMA Intern Med. 2016;176(2):238-246.

5. Wolfe MM, Soll AH. The physiology of gastric acid secretion. N Engl J Med. 1988;319(26):1707-1715.

6. Flynn A. The role of dietary calcium in bone health. Proc Nutr Soc. 2003;62(4):851-858.

7. Mizunashi K, Furukawa Y, Katano K, Abe K. Effect of omeprazole, an inhibitor of H+, K(+)-ATPase, on bone resorption in humans. Calcif Tissue Int. 1993;53(1):21-25.

8. O’Connell MB, Darren DM, Murray AM, Heaney RP, Kerzner LJ. Effects of proton pump inhibitors on calcium carbonate absorption in women: a randomized crossover trial. Am J Med. 2005;118(7):778-781.

9. Khalili H, Huang ES, Jacobson BC, Camargo CA Jr, Feskanich D, Chan AT. Use of proton pump inhibitors and risk of hip fracture in relation to dietary and lifestyle factors: a prospective cohort study. BMJ. 2012;344:e372.

10. Schweigel M, Martens H. Magnesium transport in the gastrointestinal tract. Front Biosci. 2000;5:D666-D677.

11. Hess MW, Hoenderop JG, Bindels RJ, Drenth JP. Systematic review: hypomagnesaemia induced by proton pump inhibition. Aliment Pharmacol Ther. 2012;36(5):405-413.

12. William JH, Danziger J. Proton-pump inhibitor-induced hypomagnesemia: current research and proposed mechanisms. World J Nephrol. 2016;5(2):152-157.

13. Luk CP, Parsons R, Lee YP, Hughes JD. Proton pump inhibitor-associated hypomagnesemia: what do FDA data tell us? Ann Pharmacother. 2013;47(6):773-780.

14. Health Quality Ontario. Vitamin B12 and cognitive function: an evidence-based analysis. Ont Health Technol Assess Ser. 2013;13(23):1-45.

15. Green R, Kinsella LJ. Current concepts in the diagnosis of cobalamin deficiency. Neurology. 1995;45(8):1435-1440.

16. Centers for Disease Control and Prevention. The Healthy Brain Initiative. https://www.cdc.gov/aging/pdf/2013-healthy-brain-initiative.pdf. Accessed January 17, 2017.

17. Toh BH, van Driel IR, Gleeson PA. Pernicious anemia. N Engl J Med. 1997;337(20):1441-1448.

18. Tefferi A, Pruthi RK. The biochemical basis of cobalamin deficiency. Mayo Clin Proc. 1994;69(2):181-186.

19. Lam JR, Schneider JL, Zhao W, Corley DA. Proton pump inhibitor and histamine 2 receptor antagonist use and vitamin B12 deficiency. JAMA. 2013;310(22):2435-2442.

20. Lessa FC, Mu Y, Bamberg WM, et al. Burden of Clostridium difficile infection in the United States. N Engl J Med. 2015;372(9):825-834.

21. National Clostridium difficile Standards Group. National Clostridium difficile Standards Group: report to the Department of Health. J Hosp Infect. 2004;56(suppl 1):1-38.

22. Thorens J, Frohlich F, Schwizer W, et al. Bacterial overgrowth during treatment with omeprazole compared with cimetidine. Gut. 1996;39(1):54-59.

23. Dial S, Delaney JAC, Barkun AN, et al. Use of gastric acid-suppressive agents and the risk of community-acquired Clostridium difficile-associated disease. JAMA. 2005;294(23):2989-2995

24. Mandell LA, Wunderink RG, Anzueto A, et al; Infectious Diseases Society of America; and American Thoracic Society. Infectious Diseases Society of America/American Thoracic Society consensus guidelines on the management of community-acquired pneumonia in adults. Clin Infect Dis. 2007;44(suppl 2):S27-S72.

25. Laheij RJ, Sturkenboom MC, Hassing RJ, Dieleman J, Stricker BH, Jansen JB. Risk of community-acquired pneumonia and use of gastric acid-suppressive drugs. JAMA. 2004;292(16):1955-1960.

26. Sarkar M, Hennessy S, Yang Y. Proton-pump inhibitor use and the risk for community-acquired pneumonia. Ann Intern Med. 2008;149(6):391-398.

27. Waterer GW, Wunderink RG. The influence of the severity of community-acquired pneumonia on the usefulness of blood cultures. Respir Med. 2001;95(1):78-82.

28. de Jagar CP, Wever PC, Gemen EF, et al. Proton pump inhibitor therapy predisposes to community-acquired Streptococcus pneumoniae pneumonia. Aliment Pharmacol Ther. 2012;36(10):941-949.

29. Reitz C, Brayne C, Mayeux R. Epidemiology of Alzheimer disease. Nat Rev Neurol. 2011;7(3):137-152.

30. Wimo A, Jönsson L, Bond J, Prince M, Winblad B; Alzheimer Disease International. The worldwide economic impact of dementia 2010. Alzheimers Dement. 2013;9(1):1-11.

31. Badiola N, Alcalde V, Pujol A, et al. The proton-pump inhibitor lansoprazole enhances amyloid beta production. PLoS One. 2013;8(3):e58537.

32. Stevens LA, Li S, Wang C, et al. Prevalence of CKD and comorbid illness in elderly patients in the United States: results from the Kidney Early Evaluation Program (KEEP). Am J Kidney Dis. 2010;55(3)(suppl 2):S23-S33.

 

 

33. Weir MR, Fink JC. Safety of medical therapy in patients with chronic kidney disease and end-stage renal disease. Curr Opin Nephrol Hypertens 2014;23(3):306-313.

34. Blank ML, Parkin L, Paul C, Herbison P. A nationwide nested case-control study indicates an increased risk of acute interstitial nephritis with proton pump inhibitor use. Kidney Int. 2014;86(4):837-844.

35. Antoniou T, Macdonald EM, Holland S, et al. Proton pump inhibitors and the risk of acute kidney injury in older patients: a population-based cohort study. CMAJ Open. 2015;3(2):E166-E171.

36. Klepser DG, Collier DS, Cochran GL. Proton pump inhibitors and acute kidney injury: a nested case-control study. BMC Nephrol. 2013;14:150.

37. Katz PO, Gerson LB, Vela MF. Guidelines for the diagnosis and management of gastroesophageal reflux disease. Am J Gastroenterol. 2013;108(3):308-328.

38. Niklasson A, Lindström L, Simrén M, Lindberg G, Björnsson E. Dyspeptic symptom development after discontinuation of a proton pump inhibitor: a double-blind placebo-controlled trial. Am J Gastroenterol. 2010;105(7):1531-1537.

39. Haastrup P, Paulsen MS, Begtrup LM, Hansen JM, Jarbøl DE. Strategies for discontinuation of proton pump inhibitors: a systematic review. Fam Pract. 2014;31(6):625-630.

40. Nexium [package insert]. Wilmington, DE: AstraZeneca Pharmaceuticals; 2012.

41. Prevacid [package insert]. Deerfield, IL: Takeda Pharmaceuticals; 2012.

42. Prilosec [package insert]. Wilmington, DE: AstraZeneca Pharmaceuticals; 2012.

43. Protonix [package insert]. Konstanz, Germany: Pfizer; 2012.

References

1. U.S. Food and Drug Administration. FDA Drug Safety Communication: Low magnesium levels can be associated with long-term use of Proton Pump Inhibitor drugs (PPIs). http://www.fda.gov/Drugs/DrugSafety/ucm245011.htm. Updated April 7, 2016. Accessed January 12, 2017.

2. Forgacs I. Overprescribing proton pump inhibitors. BMJ. 2008;336(7634):2-3.

3. Gomm W, von Holt K, Thome F, et al. Association of proton pump inhibitors with risk of dementia. JAMA Neurol. 2016;73(4):410-416.

4. Lazarus B, Chen Y, Wilson FP, et al. Proton pump inhibitor use and the risk of chronic kidney disease. JAMA Intern Med. 2016;176(2):238-246.

5. Wolfe MM, Soll AH. The physiology of gastric acid secretion. N Engl J Med. 1988;319(26):1707-1715.

6. Flynn A. The role of dietary calcium in bone health. Proc Nutr Soc. 2003;62(4):851-858.

7. Mizunashi K, Furukawa Y, Katano K, Abe K. Effect of omeprazole, an inhibitor of H+, K(+)-ATPase, on bone resorption in humans. Calcif Tissue Int. 1993;53(1):21-25.

8. O’Connell MB, Darren DM, Murray AM, Heaney RP, Kerzner LJ. Effects of proton pump inhibitors on calcium carbonate absorption in women: a randomized crossover trial. Am J Med. 2005;118(7):778-781.

9. Khalili H, Huang ES, Jacobson BC, Camargo CA Jr, Feskanich D, Chan AT. Use of proton pump inhibitors and risk of hip fracture in relation to dietary and lifestyle factors: a prospective cohort study. BMJ. 2012;344:e372.

10. Schweigel M, Martens H. Magnesium transport in the gastrointestinal tract. Front Biosci. 2000;5:D666-D677.

11. Hess MW, Hoenderop JG, Bindels RJ, Drenth JP. Systematic review: hypomagnesaemia induced by proton pump inhibition. Aliment Pharmacol Ther. 2012;36(5):405-413.

12. William JH, Danziger J. Proton-pump inhibitor-induced hypomagnesemia: current research and proposed mechanisms. World J Nephrol. 2016;5(2):152-157.

13. Luk CP, Parsons R, Lee YP, Hughes JD. Proton pump inhibitor-associated hypomagnesemia: what do FDA data tell us? Ann Pharmacother. 2013;47(6):773-780.

14. Health Quality Ontario. Vitamin B12 and cognitive function: an evidence-based analysis. Ont Health Technol Assess Ser. 2013;13(23):1-45.

15. Green R, Kinsella LJ. Current concepts in the diagnosis of cobalamin deficiency. Neurology. 1995;45(8):1435-1440.

16. Centers for Disease Control and Prevention. The Healthy Brain Initiative. https://www.cdc.gov/aging/pdf/2013-healthy-brain-initiative.pdf. Accessed January 17, 2017.

17. Toh BH, van Driel IR, Gleeson PA. Pernicious anemia. N Engl J Med. 1997;337(20):1441-1448.

18. Tefferi A, Pruthi RK. The biochemical basis of cobalamin deficiency. Mayo Clin Proc. 1994;69(2):181-186.

19. Lam JR, Schneider JL, Zhao W, Corley DA. Proton pump inhibitor and histamine 2 receptor antagonist use and vitamin B12 deficiency. JAMA. 2013;310(22):2435-2442.

20. Lessa FC, Mu Y, Bamberg WM, et al. Burden of Clostridium difficile infection in the United States. N Engl J Med. 2015;372(9):825-834.

21. National Clostridium difficile Standards Group. National Clostridium difficile Standards Group: report to the Department of Health. J Hosp Infect. 2004;56(suppl 1):1-38.

22. Thorens J, Frohlich F, Schwizer W, et al. Bacterial overgrowth during treatment with omeprazole compared with cimetidine. Gut. 1996;39(1):54-59.

23. Dial S, Delaney JAC, Barkun AN, et al. Use of gastric acid-suppressive agents and the risk of community-acquired Clostridium difficile-associated disease. JAMA. 2005;294(23):2989-2995

24. Mandell LA, Wunderink RG, Anzueto A, et al; Infectious Diseases Society of America; and American Thoracic Society. Infectious Diseases Society of America/American Thoracic Society consensus guidelines on the management of community-acquired pneumonia in adults. Clin Infect Dis. 2007;44(suppl 2):S27-S72.

25. Laheij RJ, Sturkenboom MC, Hassing RJ, Dieleman J, Stricker BH, Jansen JB. Risk of community-acquired pneumonia and use of gastric acid-suppressive drugs. JAMA. 2004;292(16):1955-1960.

26. Sarkar M, Hennessy S, Yang Y. Proton-pump inhibitor use and the risk for community-acquired pneumonia. Ann Intern Med. 2008;149(6):391-398.

27. Waterer GW, Wunderink RG. The influence of the severity of community-acquired pneumonia on the usefulness of blood cultures. Respir Med. 2001;95(1):78-82.

28. de Jagar CP, Wever PC, Gemen EF, et al. Proton pump inhibitor therapy predisposes to community-acquired Streptococcus pneumoniae pneumonia. Aliment Pharmacol Ther. 2012;36(10):941-949.

29. Reitz C, Brayne C, Mayeux R. Epidemiology of Alzheimer disease. Nat Rev Neurol. 2011;7(3):137-152.

30. Wimo A, Jönsson L, Bond J, Prince M, Winblad B; Alzheimer Disease International. The worldwide economic impact of dementia 2010. Alzheimers Dement. 2013;9(1):1-11.

31. Badiola N, Alcalde V, Pujol A, et al. The proton-pump inhibitor lansoprazole enhances amyloid beta production. PLoS One. 2013;8(3):e58537.

32. Stevens LA, Li S, Wang C, et al. Prevalence of CKD and comorbid illness in elderly patients in the United States: results from the Kidney Early Evaluation Program (KEEP). Am J Kidney Dis. 2010;55(3)(suppl 2):S23-S33.

 

 

33. Weir MR, Fink JC. Safety of medical therapy in patients with chronic kidney disease and end-stage renal disease. Curr Opin Nephrol Hypertens 2014;23(3):306-313.

34. Blank ML, Parkin L, Paul C, Herbison P. A nationwide nested case-control study indicates an increased risk of acute interstitial nephritis with proton pump inhibitor use. Kidney Int. 2014;86(4):837-844.

35. Antoniou T, Macdonald EM, Holland S, et al. Proton pump inhibitors and the risk of acute kidney injury in older patients: a population-based cohort study. CMAJ Open. 2015;3(2):E166-E171.

36. Klepser DG, Collier DS, Cochran GL. Proton pump inhibitors and acute kidney injury: a nested case-control study. BMC Nephrol. 2013;14:150.

37. Katz PO, Gerson LB, Vela MF. Guidelines for the diagnosis and management of gastroesophageal reflux disease. Am J Gastroenterol. 2013;108(3):308-328.

38. Niklasson A, Lindström L, Simrén M, Lindberg G, Björnsson E. Dyspeptic symptom development after discontinuation of a proton pump inhibitor: a double-blind placebo-controlled trial. Am J Gastroenterol. 2010;105(7):1531-1537.

39. Haastrup P, Paulsen MS, Begtrup LM, Hansen JM, Jarbøl DE. Strategies for discontinuation of proton pump inhibitors: a systematic review. Fam Pract. 2014;31(6):625-630.

40. Nexium [package insert]. Wilmington, DE: AstraZeneca Pharmaceuticals; 2012.

41. Prevacid [package insert]. Deerfield, IL: Takeda Pharmaceuticals; 2012.

42. Prilosec [package insert]. Wilmington, DE: AstraZeneca Pharmaceuticals; 2012.

43. Protonix [package insert]. Konstanz, Germany: Pfizer; 2012.

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Complex congenital heart conditions call for complex care in pregnancy

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A new scientific statement from the American Heart Association (AHA) brings together recommendations for management of pregnancy for women with serious congenital heart disease. The 38-page document addresses a wide range of complex congenital heart conditions, presenting a newly unified set of recommendations for care that ranges from preconception counseling, through pregnancy, labor, and delivery, to the postpartum period.

Caring for women with complex congenital heart lesions is becoming more commonplace, as more infants undergo successful repairs of previously-unsurvivable cardiac anomalies. “More moms with congenital heart disease are showing up pregnant, having survived the tumultuous peripartum and neonatal period, and are now facing a new set of risks in pregnancy,” Michael Foley, MD, chair of the department of obstetrics and gynecology at the University of Arizona, Phoenix, said in an interview.

Dr. Michael Foley, University of Arizona, Phoenix
Dr. Michael Foley
The scientific statement was seen as a reference resource and, potentially, a didactic tool when it was conceived by the writing group, led by Mary Canobbio, RN, MN, a lecturer at the University of California Los Angeles School of Nursing (Circulation. 2017 Jan 12; doi: 10.1161/CIR.0000000000000458). “The impetus was a kind of how-to review that is based on the AHA, Canadian, and European guidelines for health professionals to use when managing these patients,” said Ms. Canobbio in an interview.

Joseph Kay, MD, a cardiologist and professor of medicine and pediatrics at the University of Colorado, Aurora, said that one big benefit of the new scientific statement is having a single reference point for care of these patients. “The scientific statement brings all of the information about caring for these patients together into one document. This will be a very valuable resource for trainees to get a sense of what’s important; it also represents a platform for new programs to understand the scope of services needed,” said Dr. Kay in an interview.

The document provides a thorough review of the physiologic changes of pregnancy and the intrapartum and postpartum periods, noting that the heterogeneity of congenital heart disease means that women who have different lesions carry different risks in pregnancy.

Mary Canobbio, RN, MN University of Los Angeles School of Nursing
Mary Canobbio, RN, MN
For example, a woman with a successfully repaired patent ductus arteriosus has essentially no increase in mortality risk, and very little to no increase in morbidity risk. This woman would be in pregnancy category I, according to the modified World Health Organization maternal cardiovascular risk assessment scale. By contrast, women with a mechanical valve, Fontan circulation, or significant aortic dilatation are in WHO maternal cardiovascular category III, signifying significantly increased maternal morbidity and a severe morbidity risk.

Examples of lesions presenting intermediate risk include most arrhythmias (category II), hypertrophic cardiomyopathy, and a repaired coarctation (both category II-III). The most severe lesions carry a contraindication for pregnancy; the WHO guidelines suggest discussing termination should women with a category IV lesion become pregnant. Severe mitral stenosis, severe symptomatic aortic stenosis, and severe systemic ventricular dysfunction all place women into category IV.

Beginning with pregnancy risk category III, the WHO guidelines recommend intensive cardiac and obstetric monitoring throughout pregnancy, childbirth, and the puerperium. Several maternal-fetal medicine specialists interviewed all agreed that an interdisciplinary team is a must for good obstetric care in this population.

Dr. Joseph Kay, University of Colorado, Aurora
Dr. Joseph Kay
It’s important to follow the guidelines no matter how healthy the patient in your office appears to be, Mary Norton, MD, professor and interim chair of obstetrics, gynecology, and reproductive sciences at the University of California, San Francisco, said in an interview. “The patient can seem well early in pregnancy, but can unexpectedly get quite ill quickly when blood volume increases as pregnancy progresses,” said Dr. Norton, president of the Society for Maternal-Fetal Medicine.

How interdisciplinary care plays out can depend on geography and facility-dependent resources. Dr. Kay said that his facility is the referral site for pregnant women with complex congenital lesions in an area that spans the Canadian and the Mexican borders from north to south, and ranges from parts of Kansas to eastern Montana from east to west. Still, Dr. Kay said that even for patients with lower-risk lesions, “We will see patients at least once, at approximately the midpoint of pregnancy, and again during the third trimester if possible.” The specifics of care depend on “the nature of the lesion and the complexity of the disease,” said Dr. Kay.

In his facility, said Dr. Kay, telemetry is available for all of the labor and delivery unit beds. This means that the mother and infant can usually stay together and receive postpartum nursing and lactation care from a skilled staff.

Dr. Mary Norton
Dr. Mary Norton
Dr. Foley, former president of the Society for Maternal-Fetal Medicine, said that his facility puts the pregnant patient at the center of a “virtual” multidisciplinary “OB ICU” team. “We care for the patient in the hospital unit where resources, equipment and specialized nursing care are most readily available. Our team includes physician members from ob.gyn., maternal-fetal medicine, neonatal, trauma, ICU, anesthesiology, the resident/fellow staff, as well as ICU and OB nursing,” he said.

In no circumstances should ob.gyns. go it alone, said Dr. Foley. “The conversation with the ob.gyn. needs to be about comanaging these patients, at the very least. Even the most learned maternal-fetal medicine specialist needs to be working with a cardiologist and an anesthesiologist to create a delivery plan that includes pain management, fluid management, and consideration for intrapartum hemodynamic monitoring,” he said.

And the team needs to be in place long before delivery, Dr. Foley pointed out. “In many hospitals, the care delivery gap may be the inability to have this consistent proactive approach. You can’t expect the best outcomes when you have to hurriedly assemble an unfamiliar ad hoc team when a woman with congenital heart disease presents in labor. Despite their best intentions, inconsistent team members may not have the knowledge and experience to provide the safest care for these patients,” he said.

Though an individualized labor and delivery plan is a must, and a multispecialty team should be assembled, maternal congenital heart disease doesn’t necessarily consign a woman to cesarean delivery. “Most women can and should have a vaginal delivery. It’s safer for them. If a natural delivery may increase risk of issues, we may consider a facilitated second stage of labor with epidural anesthesia and forceps- or vacuum-assisted delivery,” said Dr. Kay.

It’s important to understand the nuances of an individual patient’s health and risk status, said Dr. Norton. “A simplified view is often bad. It’s not the case that ‘it’s always better to deliver’ or ‘it’s always better to have a cesarean delivery.’”

Especially for women who need anticoagulation or who may have lesions that put them at great risk should pregnancy occur, preconception counseling is a vital part of their care, and guidance in the scientific statement can help specialists avoid the complications that can occur in the absence of evidence-based treatment. Said Dr. Kay, “I have seen an unfortunate case or two of patients whose anticoagulation was stopped or changed, contrary to guidelines, and who suffered strokes. I hope more people will see this document.”

Ms. Canobbio echoed the sentiment: “You don’t want to have to backpedal once a young woman presents with a pregnancy. Appropriate contraceptive counseling needs to be part of the conversation.”

One key concept underscored in the scientific statement is that elevated risk persists into the postpartum period. “Following delivery, the mother is still at risk for an extended period of time. The greatest risk for mortality in these patients is post delivery, when a large volume of blood is expelled from the uterus back into the maternal circulation,” said Ms. Canobbio. “These women need close follow-up; we can’t say they are home free until several weeks to 2 months after delivery. The need for vigilance and surveillance continues.”

Since the scientific statement is not a new set of guidelines, but rather a compilation of currently existing reference documents, the authors noted that management differences may exist in some cases, but did not assign greater value to one practice than another. “We addressed that there are differences between the European and the American guidelines. For example, with regard to anticoagulation, both would agree to use Lovenox [enoxaparin], but the difference is whether it should be used for the entire pregnancy or for parts of the pregnancy,” said Ms. Canobbio.

Looking forward, more women with complex congenital heart disease will bear children, but their future is not certain. Said Ms. Canobbio: “The data are growing that if the patient is clinically stable at the time of pregnancy, it’s likely we can get them through safely. What’s not yet known is whether the burden of pregnancy in a woman who is otherwise healthy will shorten her lifespan. However, early data are promising, and it’s looking like these women can fare well.”

Topics covered in the scientific statement include:

 

 

  • Defining which patients are at increased risk in pregnancy.
  • Physiological adaptations of pregnancy, the puerperium, and the postpartum period, with an emphasis on hemodynamic changes.
  • Assessment and evaluation in the preconception and early prenatal periods.
  • Pregnancy management, including appropriate testing.
  • Medications in pregnancy, including a table of common cardiac drugs and their pregnancy categories and lactation risks.
  • Breakdown of suggested prenatal care by trimester.
  • Intrapartum care, including indications for fluid management, ECG and hemodynamic monitoring, and management of the second stage of delivery.
  • Postpartum care, with attention to the very rapid increase in blood volume and concomitant leap in stroke volume and cardiac output.
  • Considerations when choosing contraceptive method.
  • Cardiac complications seen in pregnancy, including arrhythmias, managing mechanical valves and anticoagulation, heart failure, and cyanosis.
  • Indications for and risks associated with interventional therapies during pregnancy.
  • Detailed discussion of management of pregnancy for women with specific lesions.

None of the members of the writing committee for the scientific statement had relevant disclosures. Dr. Foley and Dr. Kay reported no disclosures. Dr. Norton reported that she has received research funding from Natera and Ultragenyx.

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A new scientific statement from the American Heart Association (AHA) brings together recommendations for management of pregnancy for women with serious congenital heart disease. The 38-page document addresses a wide range of complex congenital heart conditions, presenting a newly unified set of recommendations for care that ranges from preconception counseling, through pregnancy, labor, and delivery, to the postpartum period.

Caring for women with complex congenital heart lesions is becoming more commonplace, as more infants undergo successful repairs of previously-unsurvivable cardiac anomalies. “More moms with congenital heart disease are showing up pregnant, having survived the tumultuous peripartum and neonatal period, and are now facing a new set of risks in pregnancy,” Michael Foley, MD, chair of the department of obstetrics and gynecology at the University of Arizona, Phoenix, said in an interview.

Dr. Michael Foley, University of Arizona, Phoenix
Dr. Michael Foley
The scientific statement was seen as a reference resource and, potentially, a didactic tool when it was conceived by the writing group, led by Mary Canobbio, RN, MN, a lecturer at the University of California Los Angeles School of Nursing (Circulation. 2017 Jan 12; doi: 10.1161/CIR.0000000000000458). “The impetus was a kind of how-to review that is based on the AHA, Canadian, and European guidelines for health professionals to use when managing these patients,” said Ms. Canobbio in an interview.

Joseph Kay, MD, a cardiologist and professor of medicine and pediatrics at the University of Colorado, Aurora, said that one big benefit of the new scientific statement is having a single reference point for care of these patients. “The scientific statement brings all of the information about caring for these patients together into one document. This will be a very valuable resource for trainees to get a sense of what’s important; it also represents a platform for new programs to understand the scope of services needed,” said Dr. Kay in an interview.

The document provides a thorough review of the physiologic changes of pregnancy and the intrapartum and postpartum periods, noting that the heterogeneity of congenital heart disease means that women who have different lesions carry different risks in pregnancy.

Mary Canobbio, RN, MN University of Los Angeles School of Nursing
Mary Canobbio, RN, MN
For example, a woman with a successfully repaired patent ductus arteriosus has essentially no increase in mortality risk, and very little to no increase in morbidity risk. This woman would be in pregnancy category I, according to the modified World Health Organization maternal cardiovascular risk assessment scale. By contrast, women with a mechanical valve, Fontan circulation, or significant aortic dilatation are in WHO maternal cardiovascular category III, signifying significantly increased maternal morbidity and a severe morbidity risk.

Examples of lesions presenting intermediate risk include most arrhythmias (category II), hypertrophic cardiomyopathy, and a repaired coarctation (both category II-III). The most severe lesions carry a contraindication for pregnancy; the WHO guidelines suggest discussing termination should women with a category IV lesion become pregnant. Severe mitral stenosis, severe symptomatic aortic stenosis, and severe systemic ventricular dysfunction all place women into category IV.

Beginning with pregnancy risk category III, the WHO guidelines recommend intensive cardiac and obstetric monitoring throughout pregnancy, childbirth, and the puerperium. Several maternal-fetal medicine specialists interviewed all agreed that an interdisciplinary team is a must for good obstetric care in this population.

Dr. Joseph Kay, University of Colorado, Aurora
Dr. Joseph Kay
It’s important to follow the guidelines no matter how healthy the patient in your office appears to be, Mary Norton, MD, professor and interim chair of obstetrics, gynecology, and reproductive sciences at the University of California, San Francisco, said in an interview. “The patient can seem well early in pregnancy, but can unexpectedly get quite ill quickly when blood volume increases as pregnancy progresses,” said Dr. Norton, president of the Society for Maternal-Fetal Medicine.

How interdisciplinary care plays out can depend on geography and facility-dependent resources. Dr. Kay said that his facility is the referral site for pregnant women with complex congenital lesions in an area that spans the Canadian and the Mexican borders from north to south, and ranges from parts of Kansas to eastern Montana from east to west. Still, Dr. Kay said that even for patients with lower-risk lesions, “We will see patients at least once, at approximately the midpoint of pregnancy, and again during the third trimester if possible.” The specifics of care depend on “the nature of the lesion and the complexity of the disease,” said Dr. Kay.

In his facility, said Dr. Kay, telemetry is available for all of the labor and delivery unit beds. This means that the mother and infant can usually stay together and receive postpartum nursing and lactation care from a skilled staff.

Dr. Mary Norton
Dr. Mary Norton
Dr. Foley, former president of the Society for Maternal-Fetal Medicine, said that his facility puts the pregnant patient at the center of a “virtual” multidisciplinary “OB ICU” team. “We care for the patient in the hospital unit where resources, equipment and specialized nursing care are most readily available. Our team includes physician members from ob.gyn., maternal-fetal medicine, neonatal, trauma, ICU, anesthesiology, the resident/fellow staff, as well as ICU and OB nursing,” he said.

In no circumstances should ob.gyns. go it alone, said Dr. Foley. “The conversation with the ob.gyn. needs to be about comanaging these patients, at the very least. Even the most learned maternal-fetal medicine specialist needs to be working with a cardiologist and an anesthesiologist to create a delivery plan that includes pain management, fluid management, and consideration for intrapartum hemodynamic monitoring,” he said.

And the team needs to be in place long before delivery, Dr. Foley pointed out. “In many hospitals, the care delivery gap may be the inability to have this consistent proactive approach. You can’t expect the best outcomes when you have to hurriedly assemble an unfamiliar ad hoc team when a woman with congenital heart disease presents in labor. Despite their best intentions, inconsistent team members may not have the knowledge and experience to provide the safest care for these patients,” he said.

Though an individualized labor and delivery plan is a must, and a multispecialty team should be assembled, maternal congenital heart disease doesn’t necessarily consign a woman to cesarean delivery. “Most women can and should have a vaginal delivery. It’s safer for them. If a natural delivery may increase risk of issues, we may consider a facilitated second stage of labor with epidural anesthesia and forceps- or vacuum-assisted delivery,” said Dr. Kay.

It’s important to understand the nuances of an individual patient’s health and risk status, said Dr. Norton. “A simplified view is often bad. It’s not the case that ‘it’s always better to deliver’ or ‘it’s always better to have a cesarean delivery.’”

Especially for women who need anticoagulation or who may have lesions that put them at great risk should pregnancy occur, preconception counseling is a vital part of their care, and guidance in the scientific statement can help specialists avoid the complications that can occur in the absence of evidence-based treatment. Said Dr. Kay, “I have seen an unfortunate case or two of patients whose anticoagulation was stopped or changed, contrary to guidelines, and who suffered strokes. I hope more people will see this document.”

Ms. Canobbio echoed the sentiment: “You don’t want to have to backpedal once a young woman presents with a pregnancy. Appropriate contraceptive counseling needs to be part of the conversation.”

One key concept underscored in the scientific statement is that elevated risk persists into the postpartum period. “Following delivery, the mother is still at risk for an extended period of time. The greatest risk for mortality in these patients is post delivery, when a large volume of blood is expelled from the uterus back into the maternal circulation,” said Ms. Canobbio. “These women need close follow-up; we can’t say they are home free until several weeks to 2 months after delivery. The need for vigilance and surveillance continues.”

Since the scientific statement is not a new set of guidelines, but rather a compilation of currently existing reference documents, the authors noted that management differences may exist in some cases, but did not assign greater value to one practice than another. “We addressed that there are differences between the European and the American guidelines. For example, with regard to anticoagulation, both would agree to use Lovenox [enoxaparin], but the difference is whether it should be used for the entire pregnancy or for parts of the pregnancy,” said Ms. Canobbio.

Looking forward, more women with complex congenital heart disease will bear children, but their future is not certain. Said Ms. Canobbio: “The data are growing that if the patient is clinically stable at the time of pregnancy, it’s likely we can get them through safely. What’s not yet known is whether the burden of pregnancy in a woman who is otherwise healthy will shorten her lifespan. However, early data are promising, and it’s looking like these women can fare well.”

Topics covered in the scientific statement include:

 

 

  • Defining which patients are at increased risk in pregnancy.
  • Physiological adaptations of pregnancy, the puerperium, and the postpartum period, with an emphasis on hemodynamic changes.
  • Assessment and evaluation in the preconception and early prenatal periods.
  • Pregnancy management, including appropriate testing.
  • Medications in pregnancy, including a table of common cardiac drugs and their pregnancy categories and lactation risks.
  • Breakdown of suggested prenatal care by trimester.
  • Intrapartum care, including indications for fluid management, ECG and hemodynamic monitoring, and management of the second stage of delivery.
  • Postpartum care, with attention to the very rapid increase in blood volume and concomitant leap in stroke volume and cardiac output.
  • Considerations when choosing contraceptive method.
  • Cardiac complications seen in pregnancy, including arrhythmias, managing mechanical valves and anticoagulation, heart failure, and cyanosis.
  • Indications for and risks associated with interventional therapies during pregnancy.
  • Detailed discussion of management of pregnancy for women with specific lesions.

None of the members of the writing committee for the scientific statement had relevant disclosures. Dr. Foley and Dr. Kay reported no disclosures. Dr. Norton reported that she has received research funding from Natera and Ultragenyx.

 

A new scientific statement from the American Heart Association (AHA) brings together recommendations for management of pregnancy for women with serious congenital heart disease. The 38-page document addresses a wide range of complex congenital heart conditions, presenting a newly unified set of recommendations for care that ranges from preconception counseling, through pregnancy, labor, and delivery, to the postpartum period.

Caring for women with complex congenital heart lesions is becoming more commonplace, as more infants undergo successful repairs of previously-unsurvivable cardiac anomalies. “More moms with congenital heart disease are showing up pregnant, having survived the tumultuous peripartum and neonatal period, and are now facing a new set of risks in pregnancy,” Michael Foley, MD, chair of the department of obstetrics and gynecology at the University of Arizona, Phoenix, said in an interview.

Dr. Michael Foley, University of Arizona, Phoenix
Dr. Michael Foley
The scientific statement was seen as a reference resource and, potentially, a didactic tool when it was conceived by the writing group, led by Mary Canobbio, RN, MN, a lecturer at the University of California Los Angeles School of Nursing (Circulation. 2017 Jan 12; doi: 10.1161/CIR.0000000000000458). “The impetus was a kind of how-to review that is based on the AHA, Canadian, and European guidelines for health professionals to use when managing these patients,” said Ms. Canobbio in an interview.

Joseph Kay, MD, a cardiologist and professor of medicine and pediatrics at the University of Colorado, Aurora, said that one big benefit of the new scientific statement is having a single reference point for care of these patients. “The scientific statement brings all of the information about caring for these patients together into one document. This will be a very valuable resource for trainees to get a sense of what’s important; it also represents a platform for new programs to understand the scope of services needed,” said Dr. Kay in an interview.

The document provides a thorough review of the physiologic changes of pregnancy and the intrapartum and postpartum periods, noting that the heterogeneity of congenital heart disease means that women who have different lesions carry different risks in pregnancy.

Mary Canobbio, RN, MN University of Los Angeles School of Nursing
Mary Canobbio, RN, MN
For example, a woman with a successfully repaired patent ductus arteriosus has essentially no increase in mortality risk, and very little to no increase in morbidity risk. This woman would be in pregnancy category I, according to the modified World Health Organization maternal cardiovascular risk assessment scale. By contrast, women with a mechanical valve, Fontan circulation, or significant aortic dilatation are in WHO maternal cardiovascular category III, signifying significantly increased maternal morbidity and a severe morbidity risk.

Examples of lesions presenting intermediate risk include most arrhythmias (category II), hypertrophic cardiomyopathy, and a repaired coarctation (both category II-III). The most severe lesions carry a contraindication for pregnancy; the WHO guidelines suggest discussing termination should women with a category IV lesion become pregnant. Severe mitral stenosis, severe symptomatic aortic stenosis, and severe systemic ventricular dysfunction all place women into category IV.

Beginning with pregnancy risk category III, the WHO guidelines recommend intensive cardiac and obstetric monitoring throughout pregnancy, childbirth, and the puerperium. Several maternal-fetal medicine specialists interviewed all agreed that an interdisciplinary team is a must for good obstetric care in this population.

Dr. Joseph Kay, University of Colorado, Aurora
Dr. Joseph Kay
It’s important to follow the guidelines no matter how healthy the patient in your office appears to be, Mary Norton, MD, professor and interim chair of obstetrics, gynecology, and reproductive sciences at the University of California, San Francisco, said in an interview. “The patient can seem well early in pregnancy, but can unexpectedly get quite ill quickly when blood volume increases as pregnancy progresses,” said Dr. Norton, president of the Society for Maternal-Fetal Medicine.

How interdisciplinary care plays out can depend on geography and facility-dependent resources. Dr. Kay said that his facility is the referral site for pregnant women with complex congenital lesions in an area that spans the Canadian and the Mexican borders from north to south, and ranges from parts of Kansas to eastern Montana from east to west. Still, Dr. Kay said that even for patients with lower-risk lesions, “We will see patients at least once, at approximately the midpoint of pregnancy, and again during the third trimester if possible.” The specifics of care depend on “the nature of the lesion and the complexity of the disease,” said Dr. Kay.

In his facility, said Dr. Kay, telemetry is available for all of the labor and delivery unit beds. This means that the mother and infant can usually stay together and receive postpartum nursing and lactation care from a skilled staff.

Dr. Mary Norton
Dr. Mary Norton
Dr. Foley, former president of the Society for Maternal-Fetal Medicine, said that his facility puts the pregnant patient at the center of a “virtual” multidisciplinary “OB ICU” team. “We care for the patient in the hospital unit where resources, equipment and specialized nursing care are most readily available. Our team includes physician members from ob.gyn., maternal-fetal medicine, neonatal, trauma, ICU, anesthesiology, the resident/fellow staff, as well as ICU and OB nursing,” he said.

In no circumstances should ob.gyns. go it alone, said Dr. Foley. “The conversation with the ob.gyn. needs to be about comanaging these patients, at the very least. Even the most learned maternal-fetal medicine specialist needs to be working with a cardiologist and an anesthesiologist to create a delivery plan that includes pain management, fluid management, and consideration for intrapartum hemodynamic monitoring,” he said.

And the team needs to be in place long before delivery, Dr. Foley pointed out. “In many hospitals, the care delivery gap may be the inability to have this consistent proactive approach. You can’t expect the best outcomes when you have to hurriedly assemble an unfamiliar ad hoc team when a woman with congenital heart disease presents in labor. Despite their best intentions, inconsistent team members may not have the knowledge and experience to provide the safest care for these patients,” he said.

Though an individualized labor and delivery plan is a must, and a multispecialty team should be assembled, maternal congenital heart disease doesn’t necessarily consign a woman to cesarean delivery. “Most women can and should have a vaginal delivery. It’s safer for them. If a natural delivery may increase risk of issues, we may consider a facilitated second stage of labor with epidural anesthesia and forceps- or vacuum-assisted delivery,” said Dr. Kay.

It’s important to understand the nuances of an individual patient’s health and risk status, said Dr. Norton. “A simplified view is often bad. It’s not the case that ‘it’s always better to deliver’ or ‘it’s always better to have a cesarean delivery.’”

Especially for women who need anticoagulation or who may have lesions that put them at great risk should pregnancy occur, preconception counseling is a vital part of their care, and guidance in the scientific statement can help specialists avoid the complications that can occur in the absence of evidence-based treatment. Said Dr. Kay, “I have seen an unfortunate case or two of patients whose anticoagulation was stopped or changed, contrary to guidelines, and who suffered strokes. I hope more people will see this document.”

Ms. Canobbio echoed the sentiment: “You don’t want to have to backpedal once a young woman presents with a pregnancy. Appropriate contraceptive counseling needs to be part of the conversation.”

One key concept underscored in the scientific statement is that elevated risk persists into the postpartum period. “Following delivery, the mother is still at risk for an extended period of time. The greatest risk for mortality in these patients is post delivery, when a large volume of blood is expelled from the uterus back into the maternal circulation,” said Ms. Canobbio. “These women need close follow-up; we can’t say they are home free until several weeks to 2 months after delivery. The need for vigilance and surveillance continues.”

Since the scientific statement is not a new set of guidelines, but rather a compilation of currently existing reference documents, the authors noted that management differences may exist in some cases, but did not assign greater value to one practice than another. “We addressed that there are differences between the European and the American guidelines. For example, with regard to anticoagulation, both would agree to use Lovenox [enoxaparin], but the difference is whether it should be used for the entire pregnancy or for parts of the pregnancy,” said Ms. Canobbio.

Looking forward, more women with complex congenital heart disease will bear children, but their future is not certain. Said Ms. Canobbio: “The data are growing that if the patient is clinically stable at the time of pregnancy, it’s likely we can get them through safely. What’s not yet known is whether the burden of pregnancy in a woman who is otherwise healthy will shorten her lifespan. However, early data are promising, and it’s looking like these women can fare well.”

Topics covered in the scientific statement include:

 

 

  • Defining which patients are at increased risk in pregnancy.
  • Physiological adaptations of pregnancy, the puerperium, and the postpartum period, with an emphasis on hemodynamic changes.
  • Assessment and evaluation in the preconception and early prenatal periods.
  • Pregnancy management, including appropriate testing.
  • Medications in pregnancy, including a table of common cardiac drugs and their pregnancy categories and lactation risks.
  • Breakdown of suggested prenatal care by trimester.
  • Intrapartum care, including indications for fluid management, ECG and hemodynamic monitoring, and management of the second stage of delivery.
  • Postpartum care, with attention to the very rapid increase in blood volume and concomitant leap in stroke volume and cardiac output.
  • Considerations when choosing contraceptive method.
  • Cardiac complications seen in pregnancy, including arrhythmias, managing mechanical valves and anticoagulation, heart failure, and cyanosis.
  • Indications for and risks associated with interventional therapies during pregnancy.
  • Detailed discussion of management of pregnancy for women with specific lesions.

None of the members of the writing committee for the scientific statement had relevant disclosures. Dr. Foley and Dr. Kay reported no disclosures. Dr. Norton reported that she has received research funding from Natera and Ultragenyx.

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ASCO offers practice guidance on small renal masses

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All patients with small renal masses detected on imaging should be considered for renal tumor biopsy when there is a likelihood that the results may affect management of the patient, says a new clinical oncology practice guideline from the American Society of Clinical Oncology.

The guideline defines small renal masses as incidentally image-detected, contrast-enhancing renal tumors 4 cm in diameter or less that are usually consistent with stage T1a renal cell carcinoma (RCC). Approximately one-fourth of all small renal masses turn out to be benign lesions such as oncocytoma or metanephric adenoma, and another 25% may be indolent tumors that can be managed more conservatively, the guidelines note.

kidneys
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“Although certain renal tumor histologies have distinct imaging characteristics, current radiologic imaging cannot reliably discriminate benign from indolent or potentially malignant tumors. In addition to the diagnostic dilemma, the natural history of these lesions is variable, and many tumors demonstrate an indolent course,” write Antonio Finelli, MD, of the Princess Margaret Cancer Center in Toronto and colleagues in the Journal of Clinical Oncology (2017 Jan. doi: 10.1200/JCO.2016.69.9645).

Not too long ago, nearly all patients with small renal masses would have undergone radical nephrectomy for lesions of any size. Today, however, partial nephrectomy and percutaneous thermal ablation are safe and less debilitating surgical options for many patients, the authors point out. The purpose of the guideline, therefore, is to help clinicians manage patients with clinically localized small renal masses with evidence-based clinical recommendations.

Recommendations summarized

The guideline, developed with consensus from a multidisciplinary panel, includes six evidence-based recommendations, all based on intermediate quality sources, with recommendation strengths running from moderate to strong. In summary, the guideline recommends:

  • All patients with a small renal mass should be considered for renal tumor biopsy “when the results may alter management.”
  • For patients with significant comorbidities and a limited life expectancy, active surveillance should be one of the initial management options. Absolute indications for active surveillance include if the patient is at high risk for anesthesia and intervention or has a life expectancy of less than 5 years. Active surveillance is a relative indication for those patients with significant risk of end-stage renal disease if treated, small renal masses less than 1 cm, or a life expectancy of less than 10 years.
  • For all patients for whom an intervention is indicated and who have a tumor amenable to limited resection, partial nephrectomy should be the standard treatment offered.
  • Percutaneous thermal ablation can be considered as an option for patients whose tumors can be completely ablated. A biopsy should be performed either prior to or at the time of ablation.
  • Radical nephrectomy for small renal masses should be reserved only for patients whose tumors are significantly complex to allow for successful partial nephrectomy or for whom or where partial nephrectomy “may result in unacceptable morbidity even when performed at centers with expertise. Referral to a surgeon and a center with experience in partial nephrectomy should be considered.”
  • If the patient has chronic kidney disease (CKD), defined as an estimated glomerular filtration rate less than 45 mL/min per 1.73 m2, or develops progressive CKD after treatment, he or she should be considered for referral to a nephrologist, especially if the CKD is associated with proteinuria.
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All patients with small renal masses detected on imaging should be considered for renal tumor biopsy when there is a likelihood that the results may affect management of the patient, says a new clinical oncology practice guideline from the American Society of Clinical Oncology.

The guideline defines small renal masses as incidentally image-detected, contrast-enhancing renal tumors 4 cm in diameter or less that are usually consistent with stage T1a renal cell carcinoma (RCC). Approximately one-fourth of all small renal masses turn out to be benign lesions such as oncocytoma or metanephric adenoma, and another 25% may be indolent tumors that can be managed more conservatively, the guidelines note.

kidneys
decade3d/Thinkstock
“Although certain renal tumor histologies have distinct imaging characteristics, current radiologic imaging cannot reliably discriminate benign from indolent or potentially malignant tumors. In addition to the diagnostic dilemma, the natural history of these lesions is variable, and many tumors demonstrate an indolent course,” write Antonio Finelli, MD, of the Princess Margaret Cancer Center in Toronto and colleagues in the Journal of Clinical Oncology (2017 Jan. doi: 10.1200/JCO.2016.69.9645).

Not too long ago, nearly all patients with small renal masses would have undergone radical nephrectomy for lesions of any size. Today, however, partial nephrectomy and percutaneous thermal ablation are safe and less debilitating surgical options for many patients, the authors point out. The purpose of the guideline, therefore, is to help clinicians manage patients with clinically localized small renal masses with evidence-based clinical recommendations.

Recommendations summarized

The guideline, developed with consensus from a multidisciplinary panel, includes six evidence-based recommendations, all based on intermediate quality sources, with recommendation strengths running from moderate to strong. In summary, the guideline recommends:

  • All patients with a small renal mass should be considered for renal tumor biopsy “when the results may alter management.”
  • For patients with significant comorbidities and a limited life expectancy, active surveillance should be one of the initial management options. Absolute indications for active surveillance include if the patient is at high risk for anesthesia and intervention or has a life expectancy of less than 5 years. Active surveillance is a relative indication for those patients with significant risk of end-stage renal disease if treated, small renal masses less than 1 cm, or a life expectancy of less than 10 years.
  • For all patients for whom an intervention is indicated and who have a tumor amenable to limited resection, partial nephrectomy should be the standard treatment offered.
  • Percutaneous thermal ablation can be considered as an option for patients whose tumors can be completely ablated. A biopsy should be performed either prior to or at the time of ablation.
  • Radical nephrectomy for small renal masses should be reserved only for patients whose tumors are significantly complex to allow for successful partial nephrectomy or for whom or where partial nephrectomy “may result in unacceptable morbidity even when performed at centers with expertise. Referral to a surgeon and a center with experience in partial nephrectomy should be considered.”
  • If the patient has chronic kidney disease (CKD), defined as an estimated glomerular filtration rate less than 45 mL/min per 1.73 m2, or develops progressive CKD after treatment, he or she should be considered for referral to a nephrologist, especially if the CKD is associated with proteinuria.

 

All patients with small renal masses detected on imaging should be considered for renal tumor biopsy when there is a likelihood that the results may affect management of the patient, says a new clinical oncology practice guideline from the American Society of Clinical Oncology.

The guideline defines small renal masses as incidentally image-detected, contrast-enhancing renal tumors 4 cm in diameter or less that are usually consistent with stage T1a renal cell carcinoma (RCC). Approximately one-fourth of all small renal masses turn out to be benign lesions such as oncocytoma or metanephric adenoma, and another 25% may be indolent tumors that can be managed more conservatively, the guidelines note.

kidneys
decade3d/Thinkstock
“Although certain renal tumor histologies have distinct imaging characteristics, current radiologic imaging cannot reliably discriminate benign from indolent or potentially malignant tumors. In addition to the diagnostic dilemma, the natural history of these lesions is variable, and many tumors demonstrate an indolent course,” write Antonio Finelli, MD, of the Princess Margaret Cancer Center in Toronto and colleagues in the Journal of Clinical Oncology (2017 Jan. doi: 10.1200/JCO.2016.69.9645).

Not too long ago, nearly all patients with small renal masses would have undergone radical nephrectomy for lesions of any size. Today, however, partial nephrectomy and percutaneous thermal ablation are safe and less debilitating surgical options for many patients, the authors point out. The purpose of the guideline, therefore, is to help clinicians manage patients with clinically localized small renal masses with evidence-based clinical recommendations.

Recommendations summarized

The guideline, developed with consensus from a multidisciplinary panel, includes six evidence-based recommendations, all based on intermediate quality sources, with recommendation strengths running from moderate to strong. In summary, the guideline recommends:

  • All patients with a small renal mass should be considered for renal tumor biopsy “when the results may alter management.”
  • For patients with significant comorbidities and a limited life expectancy, active surveillance should be one of the initial management options. Absolute indications for active surveillance include if the patient is at high risk for anesthesia and intervention or has a life expectancy of less than 5 years. Active surveillance is a relative indication for those patients with significant risk of end-stage renal disease if treated, small renal masses less than 1 cm, or a life expectancy of less than 10 years.
  • For all patients for whom an intervention is indicated and who have a tumor amenable to limited resection, partial nephrectomy should be the standard treatment offered.
  • Percutaneous thermal ablation can be considered as an option for patients whose tumors can be completely ablated. A biopsy should be performed either prior to or at the time of ablation.
  • Radical nephrectomy for small renal masses should be reserved only for patients whose tumors are significantly complex to allow for successful partial nephrectomy or for whom or where partial nephrectomy “may result in unacceptable morbidity even when performed at centers with expertise. Referral to a surgeon and a center with experience in partial nephrectomy should be considered.”
  • If the patient has chronic kidney disease (CKD), defined as an estimated glomerular filtration rate less than 45 mL/min per 1.73 m2, or develops progressive CKD after treatment, he or she should be considered for referral to a nephrologist, especially if the CKD is associated with proteinuria.
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Key clinical point: The guideline recommends renal tumor biopsy for most patients with incidentally detected renal masses 4 cm or smaller.

Major finding: Approximately 25% of patients with incidental small renal masses will have benign lesions.

Data source: Evidence-based clinical guideline developed by a multidisciplinary panel.

Disclosures: The guideline is sponsored by ASCO, Dr. Finelli and multiple coauthors disclosed relationships with various drug and/or device companies.

Guidelines for diagnosing TB in adults, children

Comment by Dr. Vera De Palo, FCCP
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A clinical practice guideline for diagnosing pulmonary, extrapulmonary, and latent tuberculosis in adults and children has been released jointly by the American Thoracic Society, the Centers for Disease Control and Prevention, and the Infectious Diseases Society of America.

The American Academy of Pediatrics also provided input to the guideline, which includes 23 evidence-based recommendations. The document is intended to assist clinicians in high-resource countries with a low incidence of TB disease and latent TB infection, such as the United States, said David M. Lewinsohn, MD, PhD, and his associates on the joint task force that wrote the guideline.

Zerbor/Thinkstock
There were 9,412 cases of TB disease reported in the United States in 2014, the most recent year for which data are available. This translates to a rate of 3.0 cases per 100,000 persons. Two-thirds of the cases in the United States developed in foreign-born persons. “The rate of disease was 13.4 times higher in foreign-born persons than in U.S.-born individuals (15.3 vs. 1.1 per 100,000, respectively),” wrote Dr. Lewinsohn of pulmonary and critical care medicine, Oregon Health & Science University, Portland, and his colleagues.

Even though the case rate is relatively low in the United States and has declined in recent years, “an estimated 11 million persons are infected with Mycobacterium tuberculosis. Thus … there remains a large reservoir of individuals who are infected. Without the application of improved diagnosis and effective treatment for latent [disease], new cases of TB will develop from within this group,” they noted (Clin Infect Dis. 2016 Dec 8;64[2]:e1-33. doi: 10.1093/cid/ciw694).

Among the guidelines’ strongest recommendations:

• Acid-fast bacilli smear microscopy should be performed in all patients suspected of having pulmonary TB, using at least three sputum samples. A sputum volume of at least 3 mL is needed, but 5-10 mL would be better.

• Both liquid and solid mycobacterial cultures should be performed on every specimen from patients suspected of having TB disease, rather than either type alone.

• A diagnostic nucleic acid amplification test should be performed on the initial specimen from patients suspected of having pulmonary TB.

• Rapid molecular drug susceptibility testing of respiratory specimens is advised for certain patients, with a focus on testing for rifampin susceptibility with or without isoniazid.

• Patients suspected of having extrapulmonary TB also should have mycobacterial cultures performed on all specimens.

• For all mycobacterial cultures that are positive for TB, a culture isolate should be submitted for genotyping to a regional genotyping laboratory.

• For patients aged 5 and older who are suspected of having latent TB infection, an interferon-gamma release assay (IGRA) is advised rather than a tuberculin skin test, especially if the patient is not likely to return to have the test result read. A tuberculin skin test is an acceptable alternative if IGRA is not available, is too expensive, or is too burdensome.

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Dr. Vera De Palo
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Vera A. De Palo, MD, FCCP, comments: Mycobacterium tuberculosis is a leading cause of morbidity and mortality globally, impacting the public health. Timely diagnosis for the initiation of treatment is important.

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Vera A. De Palo, MD, FCCP, comments: Mycobacterium tuberculosis is a leading cause of morbidity and mortality globally, impacting the public health. Timely diagnosis for the initiation of treatment is important.

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Dr. Vera De Palo
Dr. Vera De Palo
Vera A. De Palo, MD, FCCP, comments: Mycobacterium tuberculosis is a leading cause of morbidity and mortality globally, impacting the public health. Timely diagnosis for the initiation of treatment is important.

Title
Comment by Dr. Vera De Palo, FCCP
Comment by Dr. Vera De Palo, FCCP

 

A clinical practice guideline for diagnosing pulmonary, extrapulmonary, and latent tuberculosis in adults and children has been released jointly by the American Thoracic Society, the Centers for Disease Control and Prevention, and the Infectious Diseases Society of America.

The American Academy of Pediatrics also provided input to the guideline, which includes 23 evidence-based recommendations. The document is intended to assist clinicians in high-resource countries with a low incidence of TB disease and latent TB infection, such as the United States, said David M. Lewinsohn, MD, PhD, and his associates on the joint task force that wrote the guideline.

Zerbor/Thinkstock
There were 9,412 cases of TB disease reported in the United States in 2014, the most recent year for which data are available. This translates to a rate of 3.0 cases per 100,000 persons. Two-thirds of the cases in the United States developed in foreign-born persons. “The rate of disease was 13.4 times higher in foreign-born persons than in U.S.-born individuals (15.3 vs. 1.1 per 100,000, respectively),” wrote Dr. Lewinsohn of pulmonary and critical care medicine, Oregon Health & Science University, Portland, and his colleagues.

Even though the case rate is relatively low in the United States and has declined in recent years, “an estimated 11 million persons are infected with Mycobacterium tuberculosis. Thus … there remains a large reservoir of individuals who are infected. Without the application of improved diagnosis and effective treatment for latent [disease], new cases of TB will develop from within this group,” they noted (Clin Infect Dis. 2016 Dec 8;64[2]:e1-33. doi: 10.1093/cid/ciw694).

Among the guidelines’ strongest recommendations:

• Acid-fast bacilli smear microscopy should be performed in all patients suspected of having pulmonary TB, using at least three sputum samples. A sputum volume of at least 3 mL is needed, but 5-10 mL would be better.

• Both liquid and solid mycobacterial cultures should be performed on every specimen from patients suspected of having TB disease, rather than either type alone.

• A diagnostic nucleic acid amplification test should be performed on the initial specimen from patients suspected of having pulmonary TB.

• Rapid molecular drug susceptibility testing of respiratory specimens is advised for certain patients, with a focus on testing for rifampin susceptibility with or without isoniazid.

• Patients suspected of having extrapulmonary TB also should have mycobacterial cultures performed on all specimens.

• For all mycobacterial cultures that are positive for TB, a culture isolate should be submitted for genotyping to a regional genotyping laboratory.

• For patients aged 5 and older who are suspected of having latent TB infection, an interferon-gamma release assay (IGRA) is advised rather than a tuberculin skin test, especially if the patient is not likely to return to have the test result read. A tuberculin skin test is an acceptable alternative if IGRA is not available, is too expensive, or is too burdensome.

 

A clinical practice guideline for diagnosing pulmonary, extrapulmonary, and latent tuberculosis in adults and children has been released jointly by the American Thoracic Society, the Centers for Disease Control and Prevention, and the Infectious Diseases Society of America.

The American Academy of Pediatrics also provided input to the guideline, which includes 23 evidence-based recommendations. The document is intended to assist clinicians in high-resource countries with a low incidence of TB disease and latent TB infection, such as the United States, said David M. Lewinsohn, MD, PhD, and his associates on the joint task force that wrote the guideline.

Zerbor/Thinkstock
There were 9,412 cases of TB disease reported in the United States in 2014, the most recent year for which data are available. This translates to a rate of 3.0 cases per 100,000 persons. Two-thirds of the cases in the United States developed in foreign-born persons. “The rate of disease was 13.4 times higher in foreign-born persons than in U.S.-born individuals (15.3 vs. 1.1 per 100,000, respectively),” wrote Dr. Lewinsohn of pulmonary and critical care medicine, Oregon Health & Science University, Portland, and his colleagues.

Even though the case rate is relatively low in the United States and has declined in recent years, “an estimated 11 million persons are infected with Mycobacterium tuberculosis. Thus … there remains a large reservoir of individuals who are infected. Without the application of improved diagnosis and effective treatment for latent [disease], new cases of TB will develop from within this group,” they noted (Clin Infect Dis. 2016 Dec 8;64[2]:e1-33. doi: 10.1093/cid/ciw694).

Among the guidelines’ strongest recommendations:

• Acid-fast bacilli smear microscopy should be performed in all patients suspected of having pulmonary TB, using at least three sputum samples. A sputum volume of at least 3 mL is needed, but 5-10 mL would be better.

• Both liquid and solid mycobacterial cultures should be performed on every specimen from patients suspected of having TB disease, rather than either type alone.

• A diagnostic nucleic acid amplification test should be performed on the initial specimen from patients suspected of having pulmonary TB.

• Rapid molecular drug susceptibility testing of respiratory specimens is advised for certain patients, with a focus on testing for rifampin susceptibility with or without isoniazid.

• Patients suspected of having extrapulmonary TB also should have mycobacterial cultures performed on all specimens.

• For all mycobacterial cultures that are positive for TB, a culture isolate should be submitted for genotyping to a regional genotyping laboratory.

• For patients aged 5 and older who are suspected of having latent TB infection, an interferon-gamma release assay (IGRA) is advised rather than a tuberculin skin test, especially if the patient is not likely to return to have the test result read. A tuberculin skin test is an acceptable alternative if IGRA is not available, is too expensive, or is too burdensome.

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Key clinical point: A clinical practice guideline for diagnosing pulmonary, extrapulmonary, and latent tuberculosis in adults and children has been released jointly by the American Thoracic Society, the Centers for Disease Control and Prevention, and the Infectious Diseases Society of America.

Major finding: The clinical practice guideline includes 23 evidence-based recommendations concerning diagnostic testing for latent, pulmonary, or extrapulmonary tuberculosis in adults and children.

Data source: A compilation of 23 evidence-based recommendations about diagnostic testing for tuberculosis.

Disclosures: This work was supported by the American Thoracic Society, the Centers for Disease Control and Prevention, and the Infectious Diseases Society of America, with input from the American Academy of Pediatrics. Dr. Lewinsohn reported having no relevant financial disclosures; his associates reported ties to numerous industry sources.

NIOSH Adds to Hazardous-Drugs List

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The National Institute for Occupational Safety and Heath added 34 hazardous drugs to the list to bring awareness and enable health care worker to protect themselves from exposure at work.

Afatinib, axitinib, and belinostat head the list of 34 additions to the updated National Institute for Occupational Safety and Health (NIOSH) List of Antineoplastic and Other Hazardous Drugs in Healthcare Settings. The list is “an important resource as well as a tool to raise awareness among workers about the hazards of some drugs,” said NIOSH Director John Howard, MD, “enabling workers to take the necessary steps to protect themselves from exposure while doing their job.”

The list includes drugs used for cancer chemotherapy, antiviral drugs, hormones, and bioengineered drugs. The 3 main categories are antineoplastic drugs (including those with manufacturer’s safe-handling guidance [MSHG]), nonantineoplastic drugs that meet ≥ 1 of the NIOSH criteria for hazardous drugs (including those with MSHG), and nonantineoplastic drugs that primarily have adverse reproductive effects.

NIOSH estimates that 8 million U.S. health care workers are potentially exposed to hazardous drugs in the workplace. Some drugs defined as hazardous may not pose a significant risk of direct occupational exposure until the formulations are altered (as when coated tablets are crushed). Other hazards include, for example, skin contact with or inhalation of dust as uncoated tablets are counted. Five of the newly added drugs have safe-handling recommendations.

NIOSH says “no single approach can cover the diverse potential occupational exposures to the drugs” and notes that safe-handling precautions can vary with the activity and formulation of the drug. Still, the list also provides general guidance for “possible scenarios” that might be encountered in health care settings where hazardous drugs are handled. It addresses situations such as receiving, unpacking, and placing drugs in storage; administering an intact tablet or capsule from a unit-dose package; cutting, crushing, or manipulating tablets or capsules; and compounding oral liquid drugs or topical drugs.

The new report also provides health care organizations with guidance on generating their own list of hazardous drugs. Hazardous drug evaluation is “a continual process,” NIOSH says, advising that every facility must assess each new drug that enters its workplace and when appropriate reassess its list of hazardous drugs as new toxicologic data become available.

The list of hazardous drugs is updated periodically at http://www.cdc.gov/niosh/topics/hazdrug/.

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The National Institute for Occupational Safety and Heath added 34 hazardous drugs to the list to bring awareness and enable health care worker to protect themselves from exposure at work.
The National Institute for Occupational Safety and Heath added 34 hazardous drugs to the list to bring awareness and enable health care worker to protect themselves from exposure at work.

Afatinib, axitinib, and belinostat head the list of 34 additions to the updated National Institute for Occupational Safety and Health (NIOSH) List of Antineoplastic and Other Hazardous Drugs in Healthcare Settings. The list is “an important resource as well as a tool to raise awareness among workers about the hazards of some drugs,” said NIOSH Director John Howard, MD, “enabling workers to take the necessary steps to protect themselves from exposure while doing their job.”

The list includes drugs used for cancer chemotherapy, antiviral drugs, hormones, and bioengineered drugs. The 3 main categories are antineoplastic drugs (including those with manufacturer’s safe-handling guidance [MSHG]), nonantineoplastic drugs that meet ≥ 1 of the NIOSH criteria for hazardous drugs (including those with MSHG), and nonantineoplastic drugs that primarily have adverse reproductive effects.

NIOSH estimates that 8 million U.S. health care workers are potentially exposed to hazardous drugs in the workplace. Some drugs defined as hazardous may not pose a significant risk of direct occupational exposure until the formulations are altered (as when coated tablets are crushed). Other hazards include, for example, skin contact with or inhalation of dust as uncoated tablets are counted. Five of the newly added drugs have safe-handling recommendations.

NIOSH says “no single approach can cover the diverse potential occupational exposures to the drugs” and notes that safe-handling precautions can vary with the activity and formulation of the drug. Still, the list also provides general guidance for “possible scenarios” that might be encountered in health care settings where hazardous drugs are handled. It addresses situations such as receiving, unpacking, and placing drugs in storage; administering an intact tablet or capsule from a unit-dose package; cutting, crushing, or manipulating tablets or capsules; and compounding oral liquid drugs or topical drugs.

The new report also provides health care organizations with guidance on generating their own list of hazardous drugs. Hazardous drug evaluation is “a continual process,” NIOSH says, advising that every facility must assess each new drug that enters its workplace and when appropriate reassess its list of hazardous drugs as new toxicologic data become available.

The list of hazardous drugs is updated periodically at http://www.cdc.gov/niosh/topics/hazdrug/.

Afatinib, axitinib, and belinostat head the list of 34 additions to the updated National Institute for Occupational Safety and Health (NIOSH) List of Antineoplastic and Other Hazardous Drugs in Healthcare Settings. The list is “an important resource as well as a tool to raise awareness among workers about the hazards of some drugs,” said NIOSH Director John Howard, MD, “enabling workers to take the necessary steps to protect themselves from exposure while doing their job.”

The list includes drugs used for cancer chemotherapy, antiviral drugs, hormones, and bioengineered drugs. The 3 main categories are antineoplastic drugs (including those with manufacturer’s safe-handling guidance [MSHG]), nonantineoplastic drugs that meet ≥ 1 of the NIOSH criteria for hazardous drugs (including those with MSHG), and nonantineoplastic drugs that primarily have adverse reproductive effects.

NIOSH estimates that 8 million U.S. health care workers are potentially exposed to hazardous drugs in the workplace. Some drugs defined as hazardous may not pose a significant risk of direct occupational exposure until the formulations are altered (as when coated tablets are crushed). Other hazards include, for example, skin contact with or inhalation of dust as uncoated tablets are counted. Five of the newly added drugs have safe-handling recommendations.

NIOSH says “no single approach can cover the diverse potential occupational exposures to the drugs” and notes that safe-handling precautions can vary with the activity and formulation of the drug. Still, the list also provides general guidance for “possible scenarios” that might be encountered in health care settings where hazardous drugs are handled. It addresses situations such as receiving, unpacking, and placing drugs in storage; administering an intact tablet or capsule from a unit-dose package; cutting, crushing, or manipulating tablets or capsules; and compounding oral liquid drugs or topical drugs.

The new report also provides health care organizations with guidance on generating their own list of hazardous drugs. Hazardous drug evaluation is “a continual process,” NIOSH says, advising that every facility must assess each new drug that enters its workplace and when appropriate reassess its list of hazardous drugs as new toxicologic data become available.

The list of hazardous drugs is updated periodically at http://www.cdc.gov/niosh/topics/hazdrug/.

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New PAD guidelines expected to boost awareness and treatment

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– The latest revision of U.S. guidelines for diagnosing and managing lower-extremity peripheral artery disease is seen by several experts as primarily a renewed call to action by American physicians to more diligently identify at-risk people in their practices, diagnose the disease with ankle-brachial index measurement, and appropriately treat patients who have the disease.

The new lower-extremity peripheral artery disease (PAD) guidelines “give us a platform to get something done,” said Heather L. Gornik, MD, vice chair of the guidelines panel and medical director of the noninvasive vascular lab at the Cleveland Clinic. Improved PAD identification and care “starts with the fundamentals of recognizing who is at risk for PAD and then doing some clinical investigation to find it, because it’s there. You just need to ask patients if they have leg symptoms, have them take off their socks and examine their feet,” Dr. Gornik said in an interview following a program devoted to the revised guidelines at the American Heart Association scientific sessions.

Dr. Heather L. Gornik
Dr. Heather L. Gornik
Although the recent guidelines revision (Circulation. 2016 Nov 13. doi: 10.1161/CIR.0000000000000470) includes a lot of new evidence beyond what had been in the first PAD guidelines released by the AHA and American College of Cardiology in 2005 (Circulation. 2006 March 23;113[11]:e463-654) and in a “focused update” in 2011 (J Am Coll Cardio. 2011 Nov;58[19]:2020-45), “a lot is the same” in the latest version, compared with the two prior documents, Dr. Gornik noted. “What we need now is buy in and dissemination, and have people beyond the vascular experts actually use these guidelines,” she said. “The time is prime now to really have an impact, with greater recognition that PAD is a problem.”

 

The new guidelines are “a clarion call to action,” commented Alan T. Hirsch, MD, professor of medicine, epidemiology, and community health and director of the vascular medicine program at the University of Minnesota in Minneapolis. PAD “is the single most morbid and fatal of all cardiovascular diseases, so why in 2016 are we challenged to have every cardiologist trained in basic PAD competency?” asked Dr. Hirsch, who chaired the 2005 guidelines panel.

Dr. Alan Hirsch
Dr. Alan Hirsch
“The AHA has created a new public and health professional initiative on behalf of PAD so we can do better in the future” diagnosing and managing lower-extremity PAD, Dr. Hirsch said in an interview. “This is incredibly important and likely can assure that we achieve a paradigm shift in focusing on highly prevalent and dangerous diseases, like PAD. The AHA has assigned staff and resources to assure that we can accomplish this goal in the immediate future by more promptly diagnosing and managing lower-extremity PAD.”

The AHA wants to “elevate awareness of PAD among the public and health professionals, and we want to better understand how we can be a catalyst for change,” said Terri Wiggins, the organization’s vice president for vascular health programs. AHA publications now stress that clinicians need to have patients “take off their socks and look at the patient’s feet,” she said.

The problem with the way many U.S. physicians handle PAD goes beyond a failure to properly screen and diagnose the disease. Analysis of data collected by the National Ambulatory Medical Care Survey and the National Hospital Ambulatory Medical Care Survey during 2006-2013 showed that, among an average of 3.9 million patients seen each year with PAD, just 38% received treatment with an antiplatelet drug, 35% received a statin, and among those patients who smoked, 36% received counseling for smoking cessation, Jeffrey S. Berger, MD, reported in a separate talk at the meeting. These rates were roughly constant throughout the 8-year period he examined.

Dr. Jeffrey S. Berger
Mitchel L. Zoler/Frontline Medical News
Dr. Jeffrey S. Berger
His analysis also showed that just under a quarter of the PAD patients were also diagnosed with coronary artery disease (CAD), and in patients with disease in both arterial beds, prescription of an antiplatelet drug – aspirin or clopidogrel – jumped by more than twofold, compared with patients diagnosed with PAD only, prescription of a statin was 60% higher for patients diagnosed with both PAD and CAD, and smoking cessation treatment occurred greater than threefold more often among patients with both diseases diagnosed, reported Dr. Berger, a preventive cardiologist at New York University.

“These data are eye-opening. They highlight a clear opportunity to improve the care of patients with PAD with guideline-directed therapy. PAD is problematic because only 10%-15% of patients have typical symptoms, so many physicians have a false perception that these patients are not at high risk,” Dr. Berger said in an interview. “What the AHA is doing is great” for raising awareness, he added.

The revised 2016 PAD guidelines made several changes, compared with what had been on the books from the 2005 guidelines and 2011 update, including classifying vorapaxar (Zontivity) treatment a class IIb recommendation with “uncertain” incremental benefit when used as an add-on agent on top of standard antiplatelet therapy, endorsement of annual influenza vaccination as something every PAD patient should receive and a class I recommendation, and acknowledgment that selected patients with critical limb ischemia are candidates for an “endovascular first” approach to revascularization,

Perhaps just as important was inclusion for the first time in the new guidelines of three advocacy priorities for initiatives by various professional societies with an interest in PAD: easy availability of ankle-brachial index measurement as the initial test to establish a diagnosis of PAD in patients with physical examination findings suggestive of the disease; access to supervised exercise programs for patients diagnosed with PAD; and incorporation of patient-centered outcomes into the regulatory approval process of new medical therapies and revascularization technologies for treating PAD.

The new guidelines “ form the basis for the AHA establishing a Get With The Guidelines program for PAD so that clinicians can be held accountable for delivering these treatments,” said Naomi M. Hamburg, MD, chief of vascular biology at Boston University and a member of the guidelines panel.

Dr. Naomi M. Hamburg
After release of both the first guidelines in 2005 and the update in 2011, U.S. physicians, public health agencies, and insurers failed to widely apply the recommendations to routine practice, Dr. Hirsch noted. He was hopeful that response to the 2016 revision will be different, triggering a more diligent and concerted approach to a major public health problem.

Dr. Gornik has an ownership interest in Summit Doppler Systems and Zin Medical and has received research support from AstraZeneca and Theravasc. Dr. Hamburg has been a consultant to Acceleron and has received research support from Everest Genomics, Hershey’s, Unex, and Welch’s. Dr. Hirsch, Ms. Wiggins, and Dr. Berger had no disclosures.

mzoler@frontlinemedcom.com

On Twitter @mitchelzoler

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– The latest revision of U.S. guidelines for diagnosing and managing lower-extremity peripheral artery disease is seen by several experts as primarily a renewed call to action by American physicians to more diligently identify at-risk people in their practices, diagnose the disease with ankle-brachial index measurement, and appropriately treat patients who have the disease.

The new lower-extremity peripheral artery disease (PAD) guidelines “give us a platform to get something done,” said Heather L. Gornik, MD, vice chair of the guidelines panel and medical director of the noninvasive vascular lab at the Cleveland Clinic. Improved PAD identification and care “starts with the fundamentals of recognizing who is at risk for PAD and then doing some clinical investigation to find it, because it’s there. You just need to ask patients if they have leg symptoms, have them take off their socks and examine their feet,” Dr. Gornik said in an interview following a program devoted to the revised guidelines at the American Heart Association scientific sessions.

Dr. Heather L. Gornik
Dr. Heather L. Gornik
Although the recent guidelines revision (Circulation. 2016 Nov 13. doi: 10.1161/CIR.0000000000000470) includes a lot of new evidence beyond what had been in the first PAD guidelines released by the AHA and American College of Cardiology in 2005 (Circulation. 2006 March 23;113[11]:e463-654) and in a “focused update” in 2011 (J Am Coll Cardio. 2011 Nov;58[19]:2020-45), “a lot is the same” in the latest version, compared with the two prior documents, Dr. Gornik noted. “What we need now is buy in and dissemination, and have people beyond the vascular experts actually use these guidelines,” she said. “The time is prime now to really have an impact, with greater recognition that PAD is a problem.”

 

The new guidelines are “a clarion call to action,” commented Alan T. Hirsch, MD, professor of medicine, epidemiology, and community health and director of the vascular medicine program at the University of Minnesota in Minneapolis. PAD “is the single most morbid and fatal of all cardiovascular diseases, so why in 2016 are we challenged to have every cardiologist trained in basic PAD competency?” asked Dr. Hirsch, who chaired the 2005 guidelines panel.

Dr. Alan Hirsch
Dr. Alan Hirsch
“The AHA has created a new public and health professional initiative on behalf of PAD so we can do better in the future” diagnosing and managing lower-extremity PAD, Dr. Hirsch said in an interview. “This is incredibly important and likely can assure that we achieve a paradigm shift in focusing on highly prevalent and dangerous diseases, like PAD. The AHA has assigned staff and resources to assure that we can accomplish this goal in the immediate future by more promptly diagnosing and managing lower-extremity PAD.”

The AHA wants to “elevate awareness of PAD among the public and health professionals, and we want to better understand how we can be a catalyst for change,” said Terri Wiggins, the organization’s vice president for vascular health programs. AHA publications now stress that clinicians need to have patients “take off their socks and look at the patient’s feet,” she said.

The problem with the way many U.S. physicians handle PAD goes beyond a failure to properly screen and diagnose the disease. Analysis of data collected by the National Ambulatory Medical Care Survey and the National Hospital Ambulatory Medical Care Survey during 2006-2013 showed that, among an average of 3.9 million patients seen each year with PAD, just 38% received treatment with an antiplatelet drug, 35% received a statin, and among those patients who smoked, 36% received counseling for smoking cessation, Jeffrey S. Berger, MD, reported in a separate talk at the meeting. These rates were roughly constant throughout the 8-year period he examined.

Dr. Jeffrey S. Berger
Mitchel L. Zoler/Frontline Medical News
Dr. Jeffrey S. Berger
His analysis also showed that just under a quarter of the PAD patients were also diagnosed with coronary artery disease (CAD), and in patients with disease in both arterial beds, prescription of an antiplatelet drug – aspirin or clopidogrel – jumped by more than twofold, compared with patients diagnosed with PAD only, prescription of a statin was 60% higher for patients diagnosed with both PAD and CAD, and smoking cessation treatment occurred greater than threefold more often among patients with both diseases diagnosed, reported Dr. Berger, a preventive cardiologist at New York University.

“These data are eye-opening. They highlight a clear opportunity to improve the care of patients with PAD with guideline-directed therapy. PAD is problematic because only 10%-15% of patients have typical symptoms, so many physicians have a false perception that these patients are not at high risk,” Dr. Berger said in an interview. “What the AHA is doing is great” for raising awareness, he added.

The revised 2016 PAD guidelines made several changes, compared with what had been on the books from the 2005 guidelines and 2011 update, including classifying vorapaxar (Zontivity) treatment a class IIb recommendation with “uncertain” incremental benefit when used as an add-on agent on top of standard antiplatelet therapy, endorsement of annual influenza vaccination as something every PAD patient should receive and a class I recommendation, and acknowledgment that selected patients with critical limb ischemia are candidates for an “endovascular first” approach to revascularization,

Perhaps just as important was inclusion for the first time in the new guidelines of three advocacy priorities for initiatives by various professional societies with an interest in PAD: easy availability of ankle-brachial index measurement as the initial test to establish a diagnosis of PAD in patients with physical examination findings suggestive of the disease; access to supervised exercise programs for patients diagnosed with PAD; and incorporation of patient-centered outcomes into the regulatory approval process of new medical therapies and revascularization technologies for treating PAD.

The new guidelines “ form the basis for the AHA establishing a Get With The Guidelines program for PAD so that clinicians can be held accountable for delivering these treatments,” said Naomi M. Hamburg, MD, chief of vascular biology at Boston University and a member of the guidelines panel.

Dr. Naomi M. Hamburg
After release of both the first guidelines in 2005 and the update in 2011, U.S. physicians, public health agencies, and insurers failed to widely apply the recommendations to routine practice, Dr. Hirsch noted. He was hopeful that response to the 2016 revision will be different, triggering a more diligent and concerted approach to a major public health problem.

Dr. Gornik has an ownership interest in Summit Doppler Systems and Zin Medical and has received research support from AstraZeneca and Theravasc. Dr. Hamburg has been a consultant to Acceleron and has received research support from Everest Genomics, Hershey’s, Unex, and Welch’s. Dr. Hirsch, Ms. Wiggins, and Dr. Berger had no disclosures.

mzoler@frontlinemedcom.com

On Twitter @mitchelzoler

– The latest revision of U.S. guidelines for diagnosing and managing lower-extremity peripheral artery disease is seen by several experts as primarily a renewed call to action by American physicians to more diligently identify at-risk people in their practices, diagnose the disease with ankle-brachial index measurement, and appropriately treat patients who have the disease.

The new lower-extremity peripheral artery disease (PAD) guidelines “give us a platform to get something done,” said Heather L. Gornik, MD, vice chair of the guidelines panel and medical director of the noninvasive vascular lab at the Cleveland Clinic. Improved PAD identification and care “starts with the fundamentals of recognizing who is at risk for PAD and then doing some clinical investigation to find it, because it’s there. You just need to ask patients if they have leg symptoms, have them take off their socks and examine their feet,” Dr. Gornik said in an interview following a program devoted to the revised guidelines at the American Heart Association scientific sessions.

Dr. Heather L. Gornik
Dr. Heather L. Gornik
Although the recent guidelines revision (Circulation. 2016 Nov 13. doi: 10.1161/CIR.0000000000000470) includes a lot of new evidence beyond what had been in the first PAD guidelines released by the AHA and American College of Cardiology in 2005 (Circulation. 2006 March 23;113[11]:e463-654) and in a “focused update” in 2011 (J Am Coll Cardio. 2011 Nov;58[19]:2020-45), “a lot is the same” in the latest version, compared with the two prior documents, Dr. Gornik noted. “What we need now is buy in and dissemination, and have people beyond the vascular experts actually use these guidelines,” she said. “The time is prime now to really have an impact, with greater recognition that PAD is a problem.”

 

The new guidelines are “a clarion call to action,” commented Alan T. Hirsch, MD, professor of medicine, epidemiology, and community health and director of the vascular medicine program at the University of Minnesota in Minneapolis. PAD “is the single most morbid and fatal of all cardiovascular diseases, so why in 2016 are we challenged to have every cardiologist trained in basic PAD competency?” asked Dr. Hirsch, who chaired the 2005 guidelines panel.

Dr. Alan Hirsch
Dr. Alan Hirsch
“The AHA has created a new public and health professional initiative on behalf of PAD so we can do better in the future” diagnosing and managing lower-extremity PAD, Dr. Hirsch said in an interview. “This is incredibly important and likely can assure that we achieve a paradigm shift in focusing on highly prevalent and dangerous diseases, like PAD. The AHA has assigned staff and resources to assure that we can accomplish this goal in the immediate future by more promptly diagnosing and managing lower-extremity PAD.”

The AHA wants to “elevate awareness of PAD among the public and health professionals, and we want to better understand how we can be a catalyst for change,” said Terri Wiggins, the organization’s vice president for vascular health programs. AHA publications now stress that clinicians need to have patients “take off their socks and look at the patient’s feet,” she said.

The problem with the way many U.S. physicians handle PAD goes beyond a failure to properly screen and diagnose the disease. Analysis of data collected by the National Ambulatory Medical Care Survey and the National Hospital Ambulatory Medical Care Survey during 2006-2013 showed that, among an average of 3.9 million patients seen each year with PAD, just 38% received treatment with an antiplatelet drug, 35% received a statin, and among those patients who smoked, 36% received counseling for smoking cessation, Jeffrey S. Berger, MD, reported in a separate talk at the meeting. These rates were roughly constant throughout the 8-year period he examined.

Dr. Jeffrey S. Berger
Mitchel L. Zoler/Frontline Medical News
Dr. Jeffrey S. Berger
His analysis also showed that just under a quarter of the PAD patients were also diagnosed with coronary artery disease (CAD), and in patients with disease in both arterial beds, prescription of an antiplatelet drug – aspirin or clopidogrel – jumped by more than twofold, compared with patients diagnosed with PAD only, prescription of a statin was 60% higher for patients diagnosed with both PAD and CAD, and smoking cessation treatment occurred greater than threefold more often among patients with both diseases diagnosed, reported Dr. Berger, a preventive cardiologist at New York University.

“These data are eye-opening. They highlight a clear opportunity to improve the care of patients with PAD with guideline-directed therapy. PAD is problematic because only 10%-15% of patients have typical symptoms, so many physicians have a false perception that these patients are not at high risk,” Dr. Berger said in an interview. “What the AHA is doing is great” for raising awareness, he added.

The revised 2016 PAD guidelines made several changes, compared with what had been on the books from the 2005 guidelines and 2011 update, including classifying vorapaxar (Zontivity) treatment a class IIb recommendation with “uncertain” incremental benefit when used as an add-on agent on top of standard antiplatelet therapy, endorsement of annual influenza vaccination as something every PAD patient should receive and a class I recommendation, and acknowledgment that selected patients with critical limb ischemia are candidates for an “endovascular first” approach to revascularization,

Perhaps just as important was inclusion for the first time in the new guidelines of three advocacy priorities for initiatives by various professional societies with an interest in PAD: easy availability of ankle-brachial index measurement as the initial test to establish a diagnosis of PAD in patients with physical examination findings suggestive of the disease; access to supervised exercise programs for patients diagnosed with PAD; and incorporation of patient-centered outcomes into the regulatory approval process of new medical therapies and revascularization technologies for treating PAD.

The new guidelines “ form the basis for the AHA establishing a Get With The Guidelines program for PAD so that clinicians can be held accountable for delivering these treatments,” said Naomi M. Hamburg, MD, chief of vascular biology at Boston University and a member of the guidelines panel.

Dr. Naomi M. Hamburg
After release of both the first guidelines in 2005 and the update in 2011, U.S. physicians, public health agencies, and insurers failed to widely apply the recommendations to routine practice, Dr. Hirsch noted. He was hopeful that response to the 2016 revision will be different, triggering a more diligent and concerted approach to a major public health problem.

Dr. Gornik has an ownership interest in Summit Doppler Systems and Zin Medical and has received research support from AstraZeneca and Theravasc. Dr. Hamburg has been a consultant to Acceleron and has received research support from Everest Genomics, Hershey’s, Unex, and Welch’s. Dr. Hirsch, Ms. Wiggins, and Dr. Berger had no disclosures.

mzoler@frontlinemedcom.com

On Twitter @mitchelzoler

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