Arrhythmias & EP

The American College of Cardiology and American Heart Association Task Force on Performance Measures have made two changes to performance measures for adults with atrial fibrillation or atrial flutter.

The 2020 Update to the 2016 ACC/AHA Clinical Performance and Quality Measures for Adults With Atrial Fibrillation or Atrial Flutter was published online Dec. 7 in the Journal of the American College of Cardiology and Circulation: Cardiovascular Quality and Outcomes. It was developed in collaboration with the Heart Rhythm Society.

Both performance measure changes were prompted by, and are in accordance with, the 2019 ACC/AHA/Heart Rhythm Society atrial fibrillation guideline focused update issued in January 2019, and reported by this news organization at that time.

The first change is the clarification that valvular atrial fibrillation is atrial fibrillation with either moderate or severe mitral stenosis or a mechanical heart valve. This change is incorporated into all the performance measures.

The second change, which only applies to the performance measure of anticoagulation prescribed, is the separation of a male and female threshold for the CHA₂DS₂-VASc score.

This threshold is now a score higher than 1 for men and higher than 2 for women, further demonstrating that the risk for stroke differs for men and women with atrial fibrillation or atrial flutter, the ACC/AHA noted in a press release.

“Successful implementation of these updated performance measures by clinicians and healthcare organizations will lead to quality improvement for adult patients with atrial fibrillation or atrial flutter,” they said.

A version of this article originally appeared on Medscape.com.

The American College of Cardiology and American Heart Association Task Force on Performance Measures have made two changes to performance measures for adults with atrial fibrillation or atrial flutter.

The 2020 Update to the 2016 ACC/AHA Clinical Performance and Quality Measures for Adults With Atrial Fibrillation or Atrial Flutter was published online Dec. 7 in the Journal of the American College of Cardiology and Circulation: Cardiovascular Quality and Outcomes. It was developed in collaboration with the Heart Rhythm Society.

Both performance measure changes were prompted by, and are in accordance with, the 2019 ACC/AHA/Heart Rhythm Society atrial fibrillation guideline focused update issued in January 2019, and reported by this news organization at that time.

The first change is the clarification that valvular atrial fibrillation is atrial fibrillation with either moderate or severe mitral stenosis or a mechanical heart valve. This change is incorporated into all the performance measures.

The second change, which only applies to the performance measure of anticoagulation prescribed, is the separation of a male and female threshold for the CHA₂DS₂-VASc score.

This threshold is now a score higher than 1 for men and higher than 2 for women, further demonstrating that the risk for stroke differs for men and women with atrial fibrillation or atrial flutter, the ACC/AHA noted in a press release.

“Successful implementation of these updated performance measures by clinicians and healthcare organizations will lead to quality improvement for adult patients with atrial fibrillation or atrial flutter,” they said.

A version of this article originally appeared on Medscape.com.

The American College of Cardiology and American Heart Association Task Force on Performance Measures have made two changes to performance measures for adults with atrial fibrillation or atrial flutter.

The 2020 Update to the 2016 ACC/AHA Clinical Performance and Quality Measures for Adults With Atrial Fibrillation or Atrial Flutter was published online Dec. 7 in the Journal of the American College of Cardiology and Circulation: Cardiovascular Quality and Outcomes. It was developed in collaboration with the Heart Rhythm Society.

Both performance measure changes were prompted by, and are in accordance with, the 2019 ACC/AHA/Heart Rhythm Society atrial fibrillation guideline focused update issued in January 2019, and reported by this news organization at that time.

The first change is the clarification that valvular atrial fibrillation is atrial fibrillation with either moderate or severe mitral stenosis or a mechanical heart valve. This change is incorporated into all the performance measures.

The second change, which only applies to the performance measure of anticoagulation prescribed, is the separation of a male and female threshold for the CHA₂DS₂-VASc score.

This threshold is now a score higher than 1 for men and higher than 2 for women, further demonstrating that the risk for stroke differs for men and women with atrial fibrillation or atrial flutter, the ACC/AHA noted in a press release.

“Successful implementation of these updated performance measures by clinicians and healthcare organizations will lead to quality improvement for adult patients with atrial fibrillation or atrial flutter,” they said.

A version of this article originally appeared on Medscape.com.

The risk of arterial and venous thrombosis in patients with COVID-19 has been a major issue throughout the pandemic, and how best to manage this risk is the subject of a new review article.

The article, by Gregory Dr. Piazza, MD, and David A. Morrow, MD, Brigham and Women’s Hospital, Boston, was published online in JAMA on Nov. 23.

“Basically we’re saying: ‘Be proactive about prevention,’” Dr. Piazza told this news organization.

There is growing recognition among those on the frontline that there is an increased risk of thrombosis in COVID-19 patients, Dr. Piazza said. The risk is highest in patients in the intensive care unit, but the risk is also increased in patients hospitalized with COVID-19, even those not in ICU.

“We don’t really know what the risk is in nonhospitalized COVID-19 patients, but we think it’s much lower than in those who are hospitalized,” he said. “We are waiting for data on the optimal way of managing this increased risk of thrombosis in COVID patients, but for the time being, we believe a systematic way of addressing this risk is best, with every patient hospitalized with COVID-19 receiving some type of thromboprophylaxis. This would mainly be with anticoagulation, but in patients in whom anticoagulation is contraindicated, then mechanical methods could be used, such as pneumatic compression boots or compression stockings.”

The authors report thrombotic complication rates of 2.6% in noncritically ill hospitalized patients with COVID-19 and 35.3% in critically ill patients from a recent U.S. registry study.

Autopsy findings of microthrombi in multiple organ systems, including the lungs, heart, and kidneys, suggest that thrombosis may contribute to multisystem organ dysfunction in severe COVID-19, they note. Although the pathophysiology is not fully defined, prothrombotic abnormalities have been identified in patients with COVID-19, including elevated levels of D-dimer, fibrinogen, and factor VIII, they add.

“There are several major questions about which COVID-19 patients to treat with thromboprophylaxis, how to treat them in term of levels of anticoagulation, and there are many ongoing clinical trials to try and answer these questions,” Dr. Piazza commented. “We need results from these randomized trials to provide a better compass for COVID-19 patients at risk of clotting.”

At present, clinicians can follow two different sets of guidelines on the issue, one from the American College of Chest Physicians and the other from the International Society on Thrombosis and Hemostasis, the authors note.

“The ACCP guidelines are very conservative and basically follow the evidence base for medical patients, while the ISTH guidelines are more aggressive and recommend increased levels of anticoagulation in both ICU and hospitalized non-ICU patients and also extend prophylaxis after discharge,” Dr. Piazza said.

“There is quite a difference between the two sets of guidelines, which can be a point of confusion,” he added.

Dr. Piazza notes that at his center every hospitalized COVID patient who does not have a contraindication to anticoagulation receives a standard prophylactic dose of a once-daily low-molecular-weight heparin (for example, enoxaparin 40 mg). A once-daily product is used to minimize infection risk to staff.

While all COVID patients in the ICU should automatically receive some anticoagulation, the optimal dose is an area of active investigation, he explained. “There were several early reports of ICU patients developing blood clots despite receiving standard thromboprophylaxis so perhaps we need to use higher doses. There are trials underway looking at this, and we would advise enrolling patients into these trials.”

If patients can’t be enrolled into trials, and clinicians feel higher anticoagulation levels are needed, Dr. Piazza advises following the ISTH guidance, which allows an intermediate dose of low-molecular-weight heparin (up to 1 mg/kg enoxaparin).

“Some experts are suggesting even higher doses may be needed in some ICU patients, such as the full therapeutic dose, but I worry about the risk of bleeding with such a strategy,” he said.

Dr. Piazza says they do not routinely give anticoagulation after discharge, but if this is desired then patients could be switched to an oral agent, and some of the direct-acting oral anticoagulants are approved for prophylactic use in medically ill patients.

Dr. Piazza points out that whether thromboprophylaxis should be used for nonhospitalized COVID patients who have risk factors for clotting such as a prior history of thrombosis or obesity is a pressing question, and he encourages clinicians to enroll these patients in clinical trials evaluating this issue, such as the PREVENT-HD trial.

“If they can’t enroll patents in a trial, then they have to make a decision whether the patient is high-enough risk to justify off-label use of anticoagulant. There is a case to be made for this, but there is no evidence for or against such action at present,” he noted.

At this time, neither the ISTH nor ACCP recommend measuring D-dimer to screen for venous thromboembolism or to determine intensity of prophylaxis or treatment, the authors note.

“Ongoing investigation will determine optimal preventive regimens in COVID-19 in the intensive care unit, at hospital discharge, and in nonhospitalized patients at high risk for thrombosis,” they conclude.

Dr. Piazza reported grants from Bayer, Bristol Myers Squibb, Boston Scientific, Janssen, and Portola, and personal fees from Agile, Amgen, Pfizer, and the Prairie Education and Research Cooperative outside the submitted work. Dr. Morrow reported grants from Abbott Laboratories, Amgen, Anthos Therapeutics, Esai, GlaxoSmithKline, Takeda, and The Medicines Company; grants and personal fees from AstraZeneca, Merck, Novartis, and Roche Diagnostics; and personal fees from Bayer Pharma and InCarda outside the submitted work.

A version of this article originally appeared on Medscape.com.

The risk of arterial and venous thrombosis in patients with COVID-19 has been a major issue throughout the pandemic, and how best to manage this risk is the subject of a new review article.

The article, by Gregory Dr. Piazza, MD, and David A. Morrow, MD, Brigham and Women’s Hospital, Boston, was published online in JAMA on Nov. 23.

“Basically we’re saying: ‘Be proactive about prevention,’” Dr. Piazza told this news organization.

There is growing recognition among those on the frontline that there is an increased risk of thrombosis in COVID-19 patients, Dr. Piazza said. The risk is highest in patients in the intensive care unit, but the risk is also increased in patients hospitalized with COVID-19, even those not in ICU.

“We don’t really know what the risk is in nonhospitalized COVID-19 patients, but we think it’s much lower than in those who are hospitalized,” he said. “We are waiting for data on the optimal way of managing this increased risk of thrombosis in COVID patients, but for the time being, we believe a systematic way of addressing this risk is best, with every patient hospitalized with COVID-19 receiving some type of thromboprophylaxis. This would mainly be with anticoagulation, but in patients in whom anticoagulation is contraindicated, then mechanical methods could be used, such as pneumatic compression boots or compression stockings.”

The authors report thrombotic complication rates of 2.6% in noncritically ill hospitalized patients with COVID-19 and 35.3% in critically ill patients from a recent U.S. registry study.

Autopsy findings of microthrombi in multiple organ systems, including the lungs, heart, and kidneys, suggest that thrombosis may contribute to multisystem organ dysfunction in severe COVID-19, they note. Although the pathophysiology is not fully defined, prothrombotic abnormalities have been identified in patients with COVID-19, including elevated levels of D-dimer, fibrinogen, and factor VIII, they add.

“There are several major questions about which COVID-19 patients to treat with thromboprophylaxis, how to treat them in term of levels of anticoagulation, and there are many ongoing clinical trials to try and answer these questions,” Dr. Piazza commented. “We need results from these randomized trials to provide a better compass for COVID-19 patients at risk of clotting.”

At present, clinicians can follow two different sets of guidelines on the issue, one from the American College of Chest Physicians and the other from the International Society on Thrombosis and Hemostasis, the authors note.

“The ACCP guidelines are very conservative and basically follow the evidence base for medical patients, while the ISTH guidelines are more aggressive and recommend increased levels of anticoagulation in both ICU and hospitalized non-ICU patients and also extend prophylaxis after discharge,” Dr. Piazza said.

“There is quite a difference between the two sets of guidelines, which can be a point of confusion,” he added.

Dr. Piazza notes that at his center every hospitalized COVID patient who does not have a contraindication to anticoagulation receives a standard prophylactic dose of a once-daily low-molecular-weight heparin (for example, enoxaparin 40 mg). A once-daily product is used to minimize infection risk to staff.

While all COVID patients in the ICU should automatically receive some anticoagulation, the optimal dose is an area of active investigation, he explained. “There were several early reports of ICU patients developing blood clots despite receiving standard thromboprophylaxis so perhaps we need to use higher doses. There are trials underway looking at this, and we would advise enrolling patients into these trials.”

If patients can’t be enrolled into trials, and clinicians feel higher anticoagulation levels are needed, Dr. Piazza advises following the ISTH guidance, which allows an intermediate dose of low-molecular-weight heparin (up to 1 mg/kg enoxaparin).

“Some experts are suggesting even higher doses may be needed in some ICU patients, such as the full therapeutic dose, but I worry about the risk of bleeding with such a strategy,” he said.

Dr. Piazza says they do not routinely give anticoagulation after discharge, but if this is desired then patients could be switched to an oral agent, and some of the direct-acting oral anticoagulants are approved for prophylactic use in medically ill patients.

Dr. Piazza points out that whether thromboprophylaxis should be used for nonhospitalized COVID patients who have risk factors for clotting such as a prior history of thrombosis or obesity is a pressing question, and he encourages clinicians to enroll these patients in clinical trials evaluating this issue, such as the PREVENT-HD trial.

“If they can’t enroll patents in a trial, then they have to make a decision whether the patient is high-enough risk to justify off-label use of anticoagulant. There is a case to be made for this, but there is no evidence for or against such action at present,” he noted.

At this time, neither the ISTH nor ACCP recommend measuring D-dimer to screen for venous thromboembolism or to determine intensity of prophylaxis or treatment, the authors note.

“Ongoing investigation will determine optimal preventive regimens in COVID-19 in the intensive care unit, at hospital discharge, and in nonhospitalized patients at high risk for thrombosis,” they conclude.

Dr. Piazza reported grants from Bayer, Bristol Myers Squibb, Boston Scientific, Janssen, and Portola, and personal fees from Agile, Amgen, Pfizer, and the Prairie Education and Research Cooperative outside the submitted work. Dr. Morrow reported grants from Abbott Laboratories, Amgen, Anthos Therapeutics, Esai, GlaxoSmithKline, Takeda, and The Medicines Company; grants and personal fees from AstraZeneca, Merck, Novartis, and Roche Diagnostics; and personal fees from Bayer Pharma and InCarda outside the submitted work.

A version of this article originally appeared on Medscape.com.

The risk of arterial and venous thrombosis in patients with COVID-19 has been a major issue throughout the pandemic, and how best to manage this risk is the subject of a new review article.

The article, by Gregory Dr. Piazza, MD, and David A. Morrow, MD, Brigham and Women’s Hospital, Boston, was published online in JAMA on Nov. 23.

“Basically we’re saying: ‘Be proactive about prevention,’” Dr. Piazza told this news organization.

There is growing recognition among those on the frontline that there is an increased risk of thrombosis in COVID-19 patients, Dr. Piazza said. The risk is highest in patients in the intensive care unit, but the risk is also increased in patients hospitalized with COVID-19, even those not in ICU.

“We don’t really know what the risk is in nonhospitalized COVID-19 patients, but we think it’s much lower than in those who are hospitalized,” he said. “We are waiting for data on the optimal way of managing this increased risk of thrombosis in COVID patients, but for the time being, we believe a systematic way of addressing this risk is best, with every patient hospitalized with COVID-19 receiving some type of thromboprophylaxis. This would mainly be with anticoagulation, but in patients in whom anticoagulation is contraindicated, then mechanical methods could be used, such as pneumatic compression boots or compression stockings.”

The authors report thrombotic complication rates of 2.6% in noncritically ill hospitalized patients with COVID-19 and 35.3% in critically ill patients from a recent U.S. registry study.

Autopsy findings of microthrombi in multiple organ systems, including the lungs, heart, and kidneys, suggest that thrombosis may contribute to multisystem organ dysfunction in severe COVID-19, they note. Although the pathophysiology is not fully defined, prothrombotic abnormalities have been identified in patients with COVID-19, including elevated levels of D-dimer, fibrinogen, and factor VIII, they add.

“There are several major questions about which COVID-19 patients to treat with thromboprophylaxis, how to treat them in term of levels of anticoagulation, and there are many ongoing clinical trials to try and answer these questions,” Dr. Piazza commented. “We need results from these randomized trials to provide a better compass for COVID-19 patients at risk of clotting.”

At present, clinicians can follow two different sets of guidelines on the issue, one from the American College of Chest Physicians and the other from the International Society on Thrombosis and Hemostasis, the authors note.

“The ACCP guidelines are very conservative and basically follow the evidence base for medical patients, while the ISTH guidelines are more aggressive and recommend increased levels of anticoagulation in both ICU and hospitalized non-ICU patients and also extend prophylaxis after discharge,” Dr. Piazza said.

“There is quite a difference between the two sets of guidelines, which can be a point of confusion,” he added.

Dr. Piazza notes that at his center every hospitalized COVID patient who does not have a contraindication to anticoagulation receives a standard prophylactic dose of a once-daily low-molecular-weight heparin (for example, enoxaparin 40 mg). A once-daily product is used to minimize infection risk to staff.

While all COVID patients in the ICU should automatically receive some anticoagulation, the optimal dose is an area of active investigation, he explained. “There were several early reports of ICU patients developing blood clots despite receiving standard thromboprophylaxis so perhaps we need to use higher doses. There are trials underway looking at this, and we would advise enrolling patients into these trials.”

If patients can’t be enrolled into trials, and clinicians feel higher anticoagulation levels are needed, Dr. Piazza advises following the ISTH guidance, which allows an intermediate dose of low-molecular-weight heparin (up to 1 mg/kg enoxaparin).

“Some experts are suggesting even higher doses may be needed in some ICU patients, such as the full therapeutic dose, but I worry about the risk of bleeding with such a strategy,” he said.

Dr. Piazza says they do not routinely give anticoagulation after discharge, but if this is desired then patients could be switched to an oral agent, and some of the direct-acting oral anticoagulants are approved for prophylactic use in medically ill patients.

Dr. Piazza points out that whether thromboprophylaxis should be used for nonhospitalized COVID patients who have risk factors for clotting such as a prior history of thrombosis or obesity is a pressing question, and he encourages clinicians to enroll these patients in clinical trials evaluating this issue, such as the PREVENT-HD trial.

“If they can’t enroll patents in a trial, then they have to make a decision whether the patient is high-enough risk to justify off-label use of anticoagulant. There is a case to be made for this, but there is no evidence for or against such action at present,” he noted.

At this time, neither the ISTH nor ACCP recommend measuring D-dimer to screen for venous thromboembolism or to determine intensity of prophylaxis or treatment, the authors note.

“Ongoing investigation will determine optimal preventive regimens in COVID-19 in the intensive care unit, at hospital discharge, and in nonhospitalized patients at high risk for thrombosis,” they conclude.

Dr. Piazza reported grants from Bayer, Bristol Myers Squibb, Boston Scientific, Janssen, and Portola, and personal fees from Agile, Amgen, Pfizer, and the Prairie Education and Research Cooperative outside the submitted work. Dr. Morrow reported grants from Abbott Laboratories, Amgen, Anthos Therapeutics, Esai, GlaxoSmithKline, Takeda, and The Medicines Company; grants and personal fees from AstraZeneca, Merck, Novartis, and Roche Diagnostics; and personal fees from Bayer Pharma and InCarda outside the submitted work.

A version of this article originally appeared on Medscape.com.

In the early weeks of the COVID-19 pandemic in the United States, rates of sustained return of spontaneous circulation after out-of-hospital cardiac arrest were lower throughout the country, compared with a year earlier, in one study.

A second study of that period showed that patients with COVID-19 had rates that were better than previously reported of surviving in-hospital cardiac arrest.

Paul S. Chan, MD, presented the out-of-hospital cardiac arrest research, and Oscar J. Mitchell, MD, presented the in-hospital cardiac arrest findings in a late-breaking resuscitation science session at the American Heart Association scientific sessions. The former study was also simultaneously published online Nov. 14 in JAMA Cardiology.

Importantly, “the survival rates were not zero in either setting,” said Dr. Chan, commenting on the implications of both studies taken together.

“The survival rates – either return of circulation or survival to discharge – were not futile,” Dr. Chan, from Saint Luke’s Mid America Heart Institute, Kansas City, Missouri, said in an interview.

“And I think that’s an overall important message – that we can’t write off patients who have a cardiac arrest at this point,” he stressed. “They deserve a response. Although the outcomes might not be as good as we had seen in years prior, we are seeing patients making it out of the hospital and surviving.”

Dr. Mitchell, from the University of Pennsylvania in Philadelphia, echoed this message in an interview.

“I think that the key finding here is that survival is possible after patients with COVID-19 suffer an in-hospital cardiac arrest,” Dr. Mitchell said. “We hope that the information from our study will be of use to frontline providers who are treating patients with COVID-19.”

“In coming weeks, there will likely be increased hospital strain and enormous challenges to providing COVID-19 care,” added Benjamin S. Abella, MD, the senior author of the in-hospital study. Dr. Abella is also from the University of Pennsylvania and was cochair of the Resuscitation Science symposium during the AHA meeting.

“It is crucial that hospital leaders prepare now for how they will manage COVID-19 resuscitation efforts,” Dr. Abella said. “Emergency medicine and critical care leaders must be mindful that many COVID-19 patients with arrest could survive to return to their families.”

“It is important to note both studies demonstrated variations in outcome and that those differences were associated with the differential COVID prevalence and mortality,” session comoderator Cindy H. Hsu, MD, PhD, University of Michigan, said in an interview.

“Future studies,” she said, “should address knowledge gaps including associated comorbidities and affected resuscitation process variables during the COVID-19 pandemic.”
 

Out-of-hospital cardiac arrest, March 2019 vs. March 2020

Compared with 2019, in 2020, the reported rates of return of spontaneous circulation after out-of-hospital cardiac arrest fell from 25% to 10.6% in New York and from 13.5% to 5.0% in northern Italy – two areas that were severely affected, Dr. Chan noted.

In this study, the researchers aimed to examine whether out-of-hospital cardiac arrest outcomes would be similar throughout the United States, including areas that were less severely affected, in the first weeks of the pandemic.

They linked data from the Cardiac Arrest Registry to Enhance Survival (CARES), which covers an area with about 152 million U.S. residents, with COVID-19 disease mortality data.

There were 9,863 out-of-hospital arrests from March 16 to April 30, 2020, compared with 9,440 cases during this time in 2019.

The patients in both years had a similar age (mean, 62 years) and sex (62% male), but there were more Black patients in 2020 (28% vs. 23%).

Overall, in communities with low to high rates of death from COVID-19, the rate of return of spontaneous circulation was 18% lower in that early pandemic period than in the same time in the previous year (23% vs. 29.8%; adjusted rate ratio, 0.82).

The rates of return of spontaneous circulation were also lower in communities with a low rate of COVID-19 mortality, but to a lesser extent (11%-15% lower in 2020 vs. 2019).

In the subset of emergency medical agencies with complete data on hospital survival, overall rates of survival to discharge were 17% lower during the studied pandemic period versus the same time a year earlier (6.6% vs. 9.8%; adjusted RR, 0.83).

This drop in survival was greater in communities with moderate to high COVID-19 mortality.

These outcomes were not explained by differences in emergency medical services arrival or treatment times, rates of bystander CPR, or initial out-of-hospital cardiac arrest rhythm.

Dr. Chan was a coauthor of an interim guidance issued April 9, 2020, by the AHA and several other medical societies for ways to protect frontline workers from contracting COVID-19 while they were performing CPR.

Communities that were not heavily affected by COVID-19 could have also been following the recommendations, which might have affected outcomes, he speculated.

For example, “when we pause chest compressions it can potentially worsen survival even if it’s for a short period of time. That might explain the lower rates of return of circulation.”

“That guidance was really meant for heavily affected communities,” Dr. Chan added. “Of course, as we speak, the pandemic is pretty much everywhere in the United States. It’s not just in the northeast; it’s not just in Arizona, Florida, California, Texas like it was in the summer. You are seeing surges in 46 of the 50 states.

“If your community is heavily affected by COVID-19 in terms of deaths at this time, paramedics will need to take caution to also help protect themselves, and the guidance may apply at that point,” he said.

In-hospital cardiac arrest, March Through May 2020

The early studies of in-hospital cardiac arrest in patients with COVID-19 showed “concerningly low rates” of return of spontaneous circulation and survival, said Dr. Mitchell.

“The first was a study from Wuhan, which demonstrated a 2.9% 30-day survival and the second was a small cohort from NYC with 0% survival to hospital discharge,” he said. “This raised concerns that offering CPR to patients who had a cardiac arrest from COVID-19 might only hold a low probability of success.”

To investigate this, the researchers formed a COVID study group comprising two hospitals in New York and nine hospitals in the Northeast and West Coast.

They identified 260 hospitalized adult patients with COVID-19 who had in-hospital cardiac arrest between March 1 and May 31, 2020. The patients had a median age of 69 years, and 72% were male. Most had preexisting comorbidities. Most of the cardiac arrests were in the ICU (64%), and almost all were witnessed (91%).

Return of spontaneous circulation occurred in 22% of the patients, and 12% had survived 30 days later. Of the 260 cardiac arrests, most (204) occurred in the New York hospitals.

There was a huge variation in outcomes. The rate of sustained return of spontaneous circulation was much lower in the two hospitals in New York compared with elsewhere (11% vs. 64%), as was 30-day survival (6% vs. 36%).

“Variation in outcomes from [in-hospital cardiac arrest] has been well described prior to the COVID-19 pandemic,” said Dr. Mitchell, “and is felt to be due to a range of factors, including variation in detection and prevention of cardiac arrest, management of patients during the cardiac arrest, and differences in postarrest care – including targeted temperature management and neuroprognostication.”

“We hypothesize that the strains of the COVID-19 pandemic may have amplified these variations (although we were unable to compare hospital performance before and after the pandemic),” he said.

Nevertheless, “in contrast to [earlier] studies, we have found that survival with a good neurological status is possible after in-hospital cardiac arrest in patients with COVID-19, which is certainly reassuring for those of us on the front line.”

Dr. Chan has received research support from the American Heart Association (which helps fund CARES); the National Heart, Lung, and Blood Institute; and Optum Rx. Dr. Abella has received honoraria from NeuroproteXeon, Becton Dickinson, and Physio-Control, and research grants from Medtronic, PCORI, Physio-Control, Stryker, and TerSera. Dr. Mitchell has disclosed no relevant financial relationships.
 

A version of this article originally appeared on Medscape.com.

In the early weeks of the COVID-19 pandemic in the United States, rates of sustained return of spontaneous circulation after out-of-hospital cardiac arrest were lower throughout the country, compared with a year earlier, in one study.

A second study of that period showed that patients with COVID-19 had rates that were better than previously reported of surviving in-hospital cardiac arrest.

Paul S. Chan, MD, presented the out-of-hospital cardiac arrest research, and Oscar J. Mitchell, MD, presented the in-hospital cardiac arrest findings in a late-breaking resuscitation science session at the American Heart Association scientific sessions. The former study was also simultaneously published online Nov. 14 in JAMA Cardiology.

Importantly, “the survival rates were not zero in either setting,” said Dr. Chan, commenting on the implications of both studies taken together.

“The survival rates – either return of circulation or survival to discharge – were not futile,” Dr. Chan, from Saint Luke’s Mid America Heart Institute, Kansas City, Missouri, said in an interview.

“And I think that’s an overall important message – that we can’t write off patients who have a cardiac arrest at this point,” he stressed. “They deserve a response. Although the outcomes might not be as good as we had seen in years prior, we are seeing patients making it out of the hospital and surviving.”

Dr. Mitchell, from the University of Pennsylvania in Philadelphia, echoed this message in an interview.

“I think that the key finding here is that survival is possible after patients with COVID-19 suffer an in-hospital cardiac arrest,” Dr. Mitchell said. “We hope that the information from our study will be of use to frontline providers who are treating patients with COVID-19.”

“In coming weeks, there will likely be increased hospital strain and enormous challenges to providing COVID-19 care,” added Benjamin S. Abella, MD, the senior author of the in-hospital study. Dr. Abella is also from the University of Pennsylvania and was cochair of the Resuscitation Science symposium during the AHA meeting.

“It is crucial that hospital leaders prepare now for how they will manage COVID-19 resuscitation efforts,” Dr. Abella said. “Emergency medicine and critical care leaders must be mindful that many COVID-19 patients with arrest could survive to return to their families.”

“It is important to note both studies demonstrated variations in outcome and that those differences were associated with the differential COVID prevalence and mortality,” session comoderator Cindy H. Hsu, MD, PhD, University of Michigan, said in an interview.

“Future studies,” she said, “should address knowledge gaps including associated comorbidities and affected resuscitation process variables during the COVID-19 pandemic.”
 

Out-of-hospital cardiac arrest, March 2019 vs. March 2020

Compared with 2019, in 2020, the reported rates of return of spontaneous circulation after out-of-hospital cardiac arrest fell from 25% to 10.6% in New York and from 13.5% to 5.0% in northern Italy – two areas that were severely affected, Dr. Chan noted.

In this study, the researchers aimed to examine whether out-of-hospital cardiac arrest outcomes would be similar throughout the United States, including areas that were less severely affected, in the first weeks of the pandemic.

They linked data from the Cardiac Arrest Registry to Enhance Survival (CARES), which covers an area with about 152 million U.S. residents, with COVID-19 disease mortality data.

There were 9,863 out-of-hospital arrests from March 16 to April 30, 2020, compared with 9,440 cases during this time in 2019.

The patients in both years had a similar age (mean, 62 years) and sex (62% male), but there were more Black patients in 2020 (28% vs. 23%).

Overall, in communities with low to high rates of death from COVID-19, the rate of return of spontaneous circulation was 18% lower in that early pandemic period than in the same time in the previous year (23% vs. 29.8%; adjusted rate ratio, 0.82).

The rates of return of spontaneous circulation were also lower in communities with a low rate of COVID-19 mortality, but to a lesser extent (11%-15% lower in 2020 vs. 2019).

In the subset of emergency medical agencies with complete data on hospital survival, overall rates of survival to discharge were 17% lower during the studied pandemic period versus the same time a year earlier (6.6% vs. 9.8%; adjusted RR, 0.83).

This drop in survival was greater in communities with moderate to high COVID-19 mortality.

These outcomes were not explained by differences in emergency medical services arrival or treatment times, rates of bystander CPR, or initial out-of-hospital cardiac arrest rhythm.

Dr. Chan was a coauthor of an interim guidance issued April 9, 2020, by the AHA and several other medical societies for ways to protect frontline workers from contracting COVID-19 while they were performing CPR.

Communities that were not heavily affected by COVID-19 could have also been following the recommendations, which might have affected outcomes, he speculated.

For example, “when we pause chest compressions it can potentially worsen survival even if it’s for a short period of time. That might explain the lower rates of return of circulation.”

“That guidance was really meant for heavily affected communities,” Dr. Chan added. “Of course, as we speak, the pandemic is pretty much everywhere in the United States. It’s not just in the northeast; it’s not just in Arizona, Florida, California, Texas like it was in the summer. You are seeing surges in 46 of the 50 states.

“If your community is heavily affected by COVID-19 in terms of deaths at this time, paramedics will need to take caution to also help protect themselves, and the guidance may apply at that point,” he said.

In-hospital cardiac arrest, March Through May 2020

The early studies of in-hospital cardiac arrest in patients with COVID-19 showed “concerningly low rates” of return of spontaneous circulation and survival, said Dr. Mitchell.

“The first was a study from Wuhan, which demonstrated a 2.9% 30-day survival and the second was a small cohort from NYC with 0% survival to hospital discharge,” he said. “This raised concerns that offering CPR to patients who had a cardiac arrest from COVID-19 might only hold a low probability of success.”

To investigate this, the researchers formed a COVID study group comprising two hospitals in New York and nine hospitals in the Northeast and West Coast.

They identified 260 hospitalized adult patients with COVID-19 who had in-hospital cardiac arrest between March 1 and May 31, 2020. The patients had a median age of 69 years, and 72% were male. Most had preexisting comorbidities. Most of the cardiac arrests were in the ICU (64%), and almost all were witnessed (91%).

Return of spontaneous circulation occurred in 22% of the patients, and 12% had survived 30 days later. Of the 260 cardiac arrests, most (204) occurred in the New York hospitals.

There was a huge variation in outcomes. The rate of sustained return of spontaneous circulation was much lower in the two hospitals in New York compared with elsewhere (11% vs. 64%), as was 30-day survival (6% vs. 36%).

“Variation in outcomes from [in-hospital cardiac arrest] has been well described prior to the COVID-19 pandemic,” said Dr. Mitchell, “and is felt to be due to a range of factors, including variation in detection and prevention of cardiac arrest, management of patients during the cardiac arrest, and differences in postarrest care – including targeted temperature management and neuroprognostication.”

“We hypothesize that the strains of the COVID-19 pandemic may have amplified these variations (although we were unable to compare hospital performance before and after the pandemic),” he said.

Nevertheless, “in contrast to [earlier] studies, we have found that survival with a good neurological status is possible after in-hospital cardiac arrest in patients with COVID-19, which is certainly reassuring for those of us on the front line.”

Dr. Chan has received research support from the American Heart Association (which helps fund CARES); the National Heart, Lung, and Blood Institute; and Optum Rx. Dr. Abella has received honoraria from NeuroproteXeon, Becton Dickinson, and Physio-Control, and research grants from Medtronic, PCORI, Physio-Control, Stryker, and TerSera. Dr. Mitchell has disclosed no relevant financial relationships.
 

A version of this article originally appeared on Medscape.com.

In the early weeks of the COVID-19 pandemic in the United States, rates of sustained return of spontaneous circulation after out-of-hospital cardiac arrest were lower throughout the country, compared with a year earlier, in one study.

A second study of that period showed that patients with COVID-19 had rates that were better than previously reported of surviving in-hospital cardiac arrest.

Paul S. Chan, MD, presented the out-of-hospital cardiac arrest research, and Oscar J. Mitchell, MD, presented the in-hospital cardiac arrest findings in a late-breaking resuscitation science session at the American Heart Association scientific sessions. The former study was also simultaneously published online Nov. 14 in JAMA Cardiology.

Importantly, “the survival rates were not zero in either setting,” said Dr. Chan, commenting on the implications of both studies taken together.

“The survival rates – either return of circulation or survival to discharge – were not futile,” Dr. Chan, from Saint Luke’s Mid America Heart Institute, Kansas City, Missouri, said in an interview.

“And I think that’s an overall important message – that we can’t write off patients who have a cardiac arrest at this point,” he stressed. “They deserve a response. Although the outcomes might not be as good as we had seen in years prior, we are seeing patients making it out of the hospital and surviving.”

Dr. Mitchell, from the University of Pennsylvania in Philadelphia, echoed this message in an interview.

“I think that the key finding here is that survival is possible after patients with COVID-19 suffer an in-hospital cardiac arrest,” Dr. Mitchell said. “We hope that the information from our study will be of use to frontline providers who are treating patients with COVID-19.”

“In coming weeks, there will likely be increased hospital strain and enormous challenges to providing COVID-19 care,” added Benjamin S. Abella, MD, the senior author of the in-hospital study. Dr. Abella is also from the University of Pennsylvania and was cochair of the Resuscitation Science symposium during the AHA meeting.

“It is crucial that hospital leaders prepare now for how they will manage COVID-19 resuscitation efforts,” Dr. Abella said. “Emergency medicine and critical care leaders must be mindful that many COVID-19 patients with arrest could survive to return to their families.”

“It is important to note both studies demonstrated variations in outcome and that those differences were associated with the differential COVID prevalence and mortality,” session comoderator Cindy H. Hsu, MD, PhD, University of Michigan, said in an interview.

“Future studies,” she said, “should address knowledge gaps including associated comorbidities and affected resuscitation process variables during the COVID-19 pandemic.”
 

Out-of-hospital cardiac arrest, March 2019 vs. March 2020

Compared with 2019, in 2020, the reported rates of return of spontaneous circulation after out-of-hospital cardiac arrest fell from 25% to 10.6% in New York and from 13.5% to 5.0% in northern Italy – two areas that were severely affected, Dr. Chan noted.

In this study, the researchers aimed to examine whether out-of-hospital cardiac arrest outcomes would be similar throughout the United States, including areas that were less severely affected, in the first weeks of the pandemic.

They linked data from the Cardiac Arrest Registry to Enhance Survival (CARES), which covers an area with about 152 million U.S. residents, with COVID-19 disease mortality data.

There were 9,863 out-of-hospital arrests from March 16 to April 30, 2020, compared with 9,440 cases during this time in 2019.

The patients in both years had a similar age (mean, 62 years) and sex (62% male), but there were more Black patients in 2020 (28% vs. 23%).

Overall, in communities with low to high rates of death from COVID-19, the rate of return of spontaneous circulation was 18% lower in that early pandemic period than in the same time in the previous year (23% vs. 29.8%; adjusted rate ratio, 0.82).

The rates of return of spontaneous circulation were also lower in communities with a low rate of COVID-19 mortality, but to a lesser extent (11%-15% lower in 2020 vs. 2019).

In the subset of emergency medical agencies with complete data on hospital survival, overall rates of survival to discharge were 17% lower during the studied pandemic period versus the same time a year earlier (6.6% vs. 9.8%; adjusted RR, 0.83).

This drop in survival was greater in communities with moderate to high COVID-19 mortality.

These outcomes were not explained by differences in emergency medical services arrival or treatment times, rates of bystander CPR, or initial out-of-hospital cardiac arrest rhythm.

Dr. Chan was a coauthor of an interim guidance issued April 9, 2020, by the AHA and several other medical societies for ways to protect frontline workers from contracting COVID-19 while they were performing CPR.

Communities that were not heavily affected by COVID-19 could have also been following the recommendations, which might have affected outcomes, he speculated.

For example, “when we pause chest compressions it can potentially worsen survival even if it’s for a short period of time. That might explain the lower rates of return of circulation.”

“That guidance was really meant for heavily affected communities,” Dr. Chan added. “Of course, as we speak, the pandemic is pretty much everywhere in the United States. It’s not just in the northeast; it’s not just in Arizona, Florida, California, Texas like it was in the summer. You are seeing surges in 46 of the 50 states.

“If your community is heavily affected by COVID-19 in terms of deaths at this time, paramedics will need to take caution to also help protect themselves, and the guidance may apply at that point,” he said.

In-hospital cardiac arrest, March Through May 2020

The early studies of in-hospital cardiac arrest in patients with COVID-19 showed “concerningly low rates” of return of spontaneous circulation and survival, said Dr. Mitchell.

“The first was a study from Wuhan, which demonstrated a 2.9% 30-day survival and the second was a small cohort from NYC with 0% survival to hospital discharge,” he said. “This raised concerns that offering CPR to patients who had a cardiac arrest from COVID-19 might only hold a low probability of success.”

To investigate this, the researchers formed a COVID study group comprising two hospitals in New York and nine hospitals in the Northeast and West Coast.

They identified 260 hospitalized adult patients with COVID-19 who had in-hospital cardiac arrest between March 1 and May 31, 2020. The patients had a median age of 69 years, and 72% were male. Most had preexisting comorbidities. Most of the cardiac arrests were in the ICU (64%), and almost all were witnessed (91%).

Return of spontaneous circulation occurred in 22% of the patients, and 12% had survived 30 days later. Of the 260 cardiac arrests, most (204) occurred in the New York hospitals.

There was a huge variation in outcomes. The rate of sustained return of spontaneous circulation was much lower in the two hospitals in New York compared with elsewhere (11% vs. 64%), as was 30-day survival (6% vs. 36%).

“Variation in outcomes from [in-hospital cardiac arrest] has been well described prior to the COVID-19 pandemic,” said Dr. Mitchell, “and is felt to be due to a range of factors, including variation in detection and prevention of cardiac arrest, management of patients during the cardiac arrest, and differences in postarrest care – including targeted temperature management and neuroprognostication.”

“We hypothesize that the strains of the COVID-19 pandemic may have amplified these variations (although we were unable to compare hospital performance before and after the pandemic),” he said.

Nevertheless, “in contrast to [earlier] studies, we have found that survival with a good neurological status is possible after in-hospital cardiac arrest in patients with COVID-19, which is certainly reassuring for those of us on the front line.”

Dr. Chan has received research support from the American Heart Association (which helps fund CARES); the National Heart, Lung, and Blood Institute; and Optum Rx. Dr. Abella has received honoraria from NeuroproteXeon, Becton Dickinson, and Physio-Control, and research grants from Medtronic, PCORI, Physio-Control, Stryker, and TerSera. Dr. Mitchell has disclosed no relevant financial relationships.
 

A version of this article originally appeared on Medscape.com.

One in five patients at elevated stroke risk who underwent cardiac surgery with no history of atrial fibrillation preoperatively or at discharge developed postoperative AFib documented on a continuous cardiac rhythm monitoring device within the first 30 days after leaving the hospital in the randomized SEARCH-AF trial.

“Postoperative atrial fibrillation after cardiac surgery is not confined to the hospitalization period per se. We believe that these data should help inform on clinical practice guidelines on monitoring for postoperative atrial fibrillation in such patients,” said Subodh Verma, MD, PhD, reporting the results at the virtual American Heart Association scientific sessions.

“Guidelines provide little or no direction on optimal monitoring post cardiac surgery, particularly if patients are in sinus rhythm at discharge,” the surgeon noted.

SEARCH-AF was an open-label, multicenter study that included 336 patients at elevated stroke risk with an average CHA₂DS₂-VASc score of 4, no history of preoperative AFib, and none more than briefly with resolution during hospitalization. They were randomized to 30 days of postdischarge continuous cardiac rhythm monitoring with Medtronic’s SEEQ device, to Icentia’s CardioSTAT device, or to usual care, with Holter monitoring at the discretion of the treating physicians.

The primary result was a cumulative duration of AFib or atrial flutter of 6 minutes or longer during that 30-day period. This outcome occurred in 19.6% of the enhanced cardiac monitoring group and 1.7% of usual-care controls. Thus, there is an ongoing persistent occult risk of AFib that typically goes unrecognized. This 10-fold difference in the incidence of postoperative AFib translated into an absolute 17.9% between-group difference and a number-needed-to-treat of 6.

The secondary outcome of a cumulative atrial fib/flutter burden of 6 hours or more during 30 days occurred in 8.6% of the continuously monitored group and none of the controls. A cumulative AFib/flutter burden of 24 hours or greater occurred in 3.1% of the enhanced cardiac monitoring group and zero controls. These are AFib burdens that in other studies have been linked to increased risks of stroke and death, said Dr. Verma, professor of cardiovascular surgery at the University of Toronto.

“From a clinical standpoint, what this trial tells me is for my patients being discharged home tomorrow from the hospital, where they haven’t had AFib and I haven’t initiated anticoagulation, I have a low threshold to monitor these patients and to watch for periods of sustained unrecognized atrial fibrillation,” the surgeon added.
 

Experts: Results won’t change guidelines

Discussant Ben Freedman, MBBS, PhD, noted that the U.S. Preventive Services Task Force has stated that there are insufficient data available to recommend ECG screening for AFib to prevent stroke. Before the task force can be convinced to recommend it and for payers to cover it, a number of key questions need to be answered. And the SEARCH-AF trial doesn’t provide those answers, said Dr. Freedman, professor of cardiology and deputy director of the Heart Research Institute at the University of Sydney.

First off, it’ll be necessary to know if the risk posed by screen-detected AFib, including postoperative AFib, is similar to that of clinical AFib. Next, it must be shown that this screen-detected postoperative AFib is actionable; that is, that a screening strategy to detect postoperative AFib arising after discharge and then treat with oral anticoagulants will actually prevent more strokes than with usual care. There are large studies underway addressing that question, including HEARTLINE, STROKESTOP, and SAFERGUARD-AF, he observed.

In an interview, Rod S. Passman, MD, who gave a state-of-the-art talk on AFib detection at the meeting and wasn’t involved in SEARCH-AF, said he doesn’t consider the results practice-changing.

“It’s not guideline-changing because you’ve only shown that more intensive monitoring finds more AFib. Guideline-changing would be that finding that AFib and doing something about it impacts hard outcomes, and we don’t have that data yet,” said Dr. Passman, an electrophysiologist who is director of the Center for Arrhythmia Research and professor of medicine and preventive medicine at Northwestern University, Chicago.

The SEARCH-AF trial was funded by the Heart and Stroke Foundation of Canada, Bristol Myers Squibb, Pfizer, and Boehringer Ingelheim. Dr. Verma reported having received speaker’s fees and/or research support from those and other pharmaceutical companies. Dr. Freedman disclosed having no financial conflicts.

[email protected]

One in five patients at elevated stroke risk who underwent cardiac surgery with no history of atrial fibrillation preoperatively or at discharge developed postoperative AFib documented on a continuous cardiac rhythm monitoring device within the first 30 days after leaving the hospital in the randomized SEARCH-AF trial.

“Postoperative atrial fibrillation after cardiac surgery is not confined to the hospitalization period per se. We believe that these data should help inform on clinical practice guidelines on monitoring for postoperative atrial fibrillation in such patients,” said Subodh Verma, MD, PhD, reporting the results at the virtual American Heart Association scientific sessions.

“Guidelines provide little or no direction on optimal monitoring post cardiac surgery, particularly if patients are in sinus rhythm at discharge,” the surgeon noted.

SEARCH-AF was an open-label, multicenter study that included 336 patients at elevated stroke risk with an average CHA₂DS₂-VASc score of 4, no history of preoperative AFib, and none more than briefly with resolution during hospitalization. They were randomized to 30 days of postdischarge continuous cardiac rhythm monitoring with Medtronic’s SEEQ device, to Icentia’s CardioSTAT device, or to usual care, with Holter monitoring at the discretion of the treating physicians.

The primary result was a cumulative duration of AFib or atrial flutter of 6 minutes or longer during that 30-day period. This outcome occurred in 19.6% of the enhanced cardiac monitoring group and 1.7% of usual-care controls. Thus, there is an ongoing persistent occult risk of AFib that typically goes unrecognized. This 10-fold difference in the incidence of postoperative AFib translated into an absolute 17.9% between-group difference and a number-needed-to-treat of 6.

The secondary outcome of a cumulative atrial fib/flutter burden of 6 hours or more during 30 days occurred in 8.6% of the continuously monitored group and none of the controls. A cumulative AFib/flutter burden of 24 hours or greater occurred in 3.1% of the enhanced cardiac monitoring group and zero controls. These are AFib burdens that in other studies have been linked to increased risks of stroke and death, said Dr. Verma, professor of cardiovascular surgery at the University of Toronto.

“From a clinical standpoint, what this trial tells me is for my patients being discharged home tomorrow from the hospital, where they haven’t had AFib and I haven’t initiated anticoagulation, I have a low threshold to monitor these patients and to watch for periods of sustained unrecognized atrial fibrillation,” the surgeon added.
 

Experts: Results won’t change guidelines

Discussant Ben Freedman, MBBS, PhD, noted that the U.S. Preventive Services Task Force has stated that there are insufficient data available to recommend ECG screening for AFib to prevent stroke. Before the task force can be convinced to recommend it and for payers to cover it, a number of key questions need to be answered. And the SEARCH-AF trial doesn’t provide those answers, said Dr. Freedman, professor of cardiology and deputy director of the Heart Research Institute at the University of Sydney.

First off, it’ll be necessary to know if the risk posed by screen-detected AFib, including postoperative AFib, is similar to that of clinical AFib. Next, it must be shown that this screen-detected postoperative AFib is actionable; that is, that a screening strategy to detect postoperative AFib arising after discharge and then treat with oral anticoagulants will actually prevent more strokes than with usual care. There are large studies underway addressing that question, including HEARTLINE, STROKESTOP, and SAFERGUARD-AF, he observed.

In an interview, Rod S. Passman, MD, who gave a state-of-the-art talk on AFib detection at the meeting and wasn’t involved in SEARCH-AF, said he doesn’t consider the results practice-changing.

“It’s not guideline-changing because you’ve only shown that more intensive monitoring finds more AFib. Guideline-changing would be that finding that AFib and doing something about it impacts hard outcomes, and we don’t have that data yet,” said Dr. Passman, an electrophysiologist who is director of the Center for Arrhythmia Research and professor of medicine and preventive medicine at Northwestern University, Chicago.

The SEARCH-AF trial was funded by the Heart and Stroke Foundation of Canada, Bristol Myers Squibb, Pfizer, and Boehringer Ingelheim. Dr. Verma reported having received speaker’s fees and/or research support from those and other pharmaceutical companies. Dr. Freedman disclosed having no financial conflicts.

[email protected]

One in five patients at elevated stroke risk who underwent cardiac surgery with no history of atrial fibrillation preoperatively or at discharge developed postoperative AFib documented on a continuous cardiac rhythm monitoring device within the first 30 days after leaving the hospital in the randomized SEARCH-AF trial.

“Postoperative atrial fibrillation after cardiac surgery is not confined to the hospitalization period per se. We believe that these data should help inform on clinical practice guidelines on monitoring for postoperative atrial fibrillation in such patients,” said Subodh Verma, MD, PhD, reporting the results at the virtual American Heart Association scientific sessions.

“Guidelines provide little or no direction on optimal monitoring post cardiac surgery, particularly if patients are in sinus rhythm at discharge,” the surgeon noted.

SEARCH-AF was an open-label, multicenter study that included 336 patients at elevated stroke risk with an average CHA₂DS₂-VASc score of 4, no history of preoperative AFib, and none more than briefly with resolution during hospitalization. They were randomized to 30 days of postdischarge continuous cardiac rhythm monitoring with Medtronic’s SEEQ device, to Icentia’s CardioSTAT device, or to usual care, with Holter monitoring at the discretion of the treating physicians.

The primary result was a cumulative duration of AFib or atrial flutter of 6 minutes or longer during that 30-day period. This outcome occurred in 19.6% of the enhanced cardiac monitoring group and 1.7% of usual-care controls. Thus, there is an ongoing persistent occult risk of AFib that typically goes unrecognized. This 10-fold difference in the incidence of postoperative AFib translated into an absolute 17.9% between-group difference and a number-needed-to-treat of 6.

The secondary outcome of a cumulative atrial fib/flutter burden of 6 hours or more during 30 days occurred in 8.6% of the continuously monitored group and none of the controls. A cumulative AFib/flutter burden of 24 hours or greater occurred in 3.1% of the enhanced cardiac monitoring group and zero controls. These are AFib burdens that in other studies have been linked to increased risks of stroke and death, said Dr. Verma, professor of cardiovascular surgery at the University of Toronto.

“From a clinical standpoint, what this trial tells me is for my patients being discharged home tomorrow from the hospital, where they haven’t had AFib and I haven’t initiated anticoagulation, I have a low threshold to monitor these patients and to watch for periods of sustained unrecognized atrial fibrillation,” the surgeon added.
 

Experts: Results won’t change guidelines

Discussant Ben Freedman, MBBS, PhD, noted that the U.S. Preventive Services Task Force has stated that there are insufficient data available to recommend ECG screening for AFib to prevent stroke. Before the task force can be convinced to recommend it and for payers to cover it, a number of key questions need to be answered. And the SEARCH-AF trial doesn’t provide those answers, said Dr. Freedman, professor of cardiology and deputy director of the Heart Research Institute at the University of Sydney.

First off, it’ll be necessary to know if the risk posed by screen-detected AFib, including postoperative AFib, is similar to that of clinical AFib. Next, it must be shown that this screen-detected postoperative AFib is actionable; that is, that a screening strategy to detect postoperative AFib arising after discharge and then treat with oral anticoagulants will actually prevent more strokes than with usual care. There are large studies underway addressing that question, including HEARTLINE, STROKESTOP, and SAFERGUARD-AF, he observed.

In an interview, Rod S. Passman, MD, who gave a state-of-the-art talk on AFib detection at the meeting and wasn’t involved in SEARCH-AF, said he doesn’t consider the results practice-changing.

“It’s not guideline-changing because you’ve only shown that more intensive monitoring finds more AFib. Guideline-changing would be that finding that AFib and doing something about it impacts hard outcomes, and we don’t have that data yet,” said Dr. Passman, an electrophysiologist who is director of the Center for Arrhythmia Research and professor of medicine and preventive medicine at Northwestern University, Chicago.

The SEARCH-AF trial was funded by the Heart and Stroke Foundation of Canada, Bristol Myers Squibb, Pfizer, and Boehringer Ingelheim. Dr. Verma reported having received speaker’s fees and/or research support from those and other pharmaceutical companies. Dr. Freedman disclosed having no financial conflicts.

[email protected]

Clinical trials of omega-3 fatty acid or vitamin D supplements have followed a long and winding road in search of benefits in cardiovascular (CV) disease, with wildly mixed results. But the journey may be in vain in one of cardiology’s frontier research areas, primary prevention of atrial fibrillation (AF), suggest primary results of the VITAL-Rhythm trial, presented Nov. 13 during the  American Heart Association (AHA) Scientific Sessions 2020 virtual meeting.

Neither marine-oil caps nor the vitamin D3 supplements made a difference to risk for incident AF, whether paroxysmal or persistent, over more than 5 years in the study, with more than 25,000 adults in the community. Nor did they seem to cause harm.

“To our knowledge, this is the first large-scale, long-term, randomized placebo-controlled trial to test the effect of any intervention on incident AF,” Christine M. Albert, MD, MPH, Cedars-Sinai Medical Center in Los Angeles, said at a media briefing on VITAL-Rhythm before her formal presentation of the trial during the conference.

Its findings, she said, don’t support the use of marine-oil caps or vitamin D3 for primary prevention of incident AF. “Fortunately, they also do not show any increased risk in atrial fibrillation for patients who are using these supplements for other indications.”

Both agents are widely taken without physician supervision for their perceived benefits, and marine-oil caps in particular – often in special prescription formulations – may be used for reducing elevated triglyceride levels and, based on the results of REDUCE-IT, cutting cardiovascular risk.

“It’s pretty clear that there’s no evidence to suggest that either of these supplements is helpful for preventing atrial fibrillation. And I think that’s clear from the evidence these investigators presented,” said Jonathan P. Piccini, MD, MHS, Duke University, Durham, N.C., who wasn’t part of the study.

“It’s also a little disappointing because atrial fibrillation is such a huge problem, and the inability to identify preventative strategies is a repeated theme,” he said in an interview.
VITAL-Rhythm is an ancillary study within the VITAL trial, which showed no benefit from either supplement regarding risk for incident cancer or CV events, as reported at the AHA sessions 2 years ago. In fact, their effects seem sweepingly negative throughout the trial; in another ancillary study, VITAL-DKD, neither supplement helped preserve renal function over 5 years in patients with type 2 diabetes.   

The participants started VITAL without a history of AF, CV disease, or cancer; they were randomly assigned to take about a gram of omega-3 fatty acids, 2000 IU vitamin D3 daily, or their placebos, in a double randomization.

VITAL and its ancillary studies collectively undercut mechanistic theories about how omega-3 fatty acid and vitamin D supplements may affect AF risk, ideas derived from epidemiologic and dietary studies. They were thought perhaps “to have direct antiarrhythmic effects on myocytes through effects on ion channels, electrical remodeling, electrical stabilizing effects, and fluidity of the cell membranes,” observed Renate B. Schnabel, MD, MSc, University Heart Center, Hamburg, Germany, at the briefing. Or such effects might be related to beneficial effects on atherosclerosis, inflammation, or ischemic heart disease, she noted.

Neither idea is likely after VITAL and VITAL-Rhythm, said Dr. Schnabel, who spoke as an invited discussant after Albert’s formal presentation at AHA 2020.

That omega-3 fatty acid supplements may not improve AF incidence or risks has also been evident from many clinical trials and observational studies. Several, including REDUCE-IT, included some evidence for increasing risk for AF with marine-oil supplement intake. That may have happened in VITAL-Rhythm as well.

“While there was no evidence that the omega-3 three fatty acids prevented atrial fibrillation, there was a signal of perhaps more atrial fibrillation in the omega-3 fatty-acids group,” said Dr. Piccini, who directs his center’s electrophysiology clinical trials program.

A sensitivity analysis limited to participants who adhered to their assigned regimens, as opposed to the main intention-to-treat (ITT) analysis, showed a nonsignificant 13% increased hazard ratio for incident AF for the marine-oil supplement group. It reached a P value of .09, which can be interpreted as a trend.

“There are a few studies that have now showed a trend or an increased incidence of arrhythmia in patients treated with omega-3 fatty acids,” Dr. Piccini noted. “I don’t think it’s definitive, but it’s certainly something to keep an eye on.”

VITAL-Rhythm included an electrocardiography (ECG) substudy, yet to be reported, that should yield more insights about any such effects of marine-oil or vitamin D supplements in the trial, Dr. Albert said at the briefing.

The ancillary study assigned its 25,119 patients (mean age, 67 years; 51% women) to take vitamin D3 at 2000 IU/day, marine-oil supplements containing omega-3 fatty acids at 840 mg per day – 460 mg eicosapentaenoic acid (EPA) plus 380 mg docosahexaenoic acid (DHA) (Omacor, Pronova BioPharma) – or their placebos in a 2 x 2 randomization.

Incident cases of AF were identified through annual questionnaires in which the participants self-reported whether they had received a physician diagnosis of the arrhythmia, supplemented by Centers for Medicare & Medicaid Services claims data for AF hospital and clinical visits. Those led to a review of inpatient and outpatient records, from which AF events were adjudicated by an endpoint committee.

An electrocardiogram (72.9%) or physician’s report (27.1%) confirmed the AF diagnosis as the protocol required.

By those standards, 900 incident cases were identified, for a rate of 3.6% over a median of 5.3 years. They were paroxysmal in 58.4%, persistent in 38.4%, and indeterminant in 3.1%, Dr. Albert reported.

Of the 12,542 patients assigned to marine-oil caps by ITT, 469 (3.74%) developed incident AF in the ITT analysis, compared to 431 of 12,577 (3.43%) who received placebo, for an adjusted hazard ratio (HR) of 1.09 (95% CI, 0.96-1.24; P = .19).

The results were similar in two sensitivity analyses, one of which omitted patients with AF who may have had symptoms before randomization and another excluding those whose incident AF was identified solely in CMS data. But in the third “on treatment” sensitivity analysis, the HR for events was 1.13 (95% CI, 0.98-1.30; P = .09).

Outcomes for the vitamin D randomization were nearly the same, for an HR of 1.09 (95% CI, 0.96-1.25; P = .19) by ITT; the results were similar in all three sensitivity analyses.

“It’s not a tremendous signal of risk,” said Piccini of the marine-oil on-treatment analysis. But it, along with consistent evidence from other studies, does give him pause. “If a patient came to me and said,

Doctor, I want to take omega-3 fish oil, because I want to reduce my risk of events, as an arrhythmia doctor I would say, ‘We don’t have great evidence to do that for preventing atrial fibrillation. And there’s actually some evidence that it could mildly increase your risk of developing it.’ ”

For those prescribed evidence-based marine-oil therapy for other indications, he said, “I think the take-home message certainly is, if they report palpitations or other signs or symptoms that could be due to atrial fibrillation, we should be aggressive about screening for atrial fibrillation,” and making the diagnosis as appropriate. If the incident AF resolves after stopping the treatment, “maybe it’s reasonable to refrain from prescribing the medication for that patient.”

VITAL-Rhythm and VITAL are supported by multiple grants from the National Institutes of Health. Albert discloses receiving grant support from St. Jude Medical, Abbott, and Roche. Schnabel reports receiving honoraria from Bristol-Myers Squibb/Pfizer. Piccini previously disclosed receiving research grants from Abbott, the Association for the Advancement of Medical Instrumentation, Bayer, Boston Scientific, and Philips and serving as a consultant to Abbott, Allergan, ARCA Biopharma, Biotronik, Boston Scientific, LivaNova, Medtronic, Milestone, Sanofi, Philips, and UptoDate.

A version of this article originally appeared on Medscape.com.

Clinical trials of omega-3 fatty acid or vitamin D supplements have followed a long and winding road in search of benefits in cardiovascular (CV) disease, with wildly mixed results. But the journey may be in vain in one of cardiology’s frontier research areas, primary prevention of atrial fibrillation (AF), suggest primary results of the VITAL-Rhythm trial, presented Nov. 13 during the  American Heart Association (AHA) Scientific Sessions 2020 virtual meeting.

Neither marine-oil caps nor the vitamin D3 supplements made a difference to risk for incident AF, whether paroxysmal or persistent, over more than 5 years in the study, with more than 25,000 adults in the community. Nor did they seem to cause harm.

“To our knowledge, this is the first large-scale, long-term, randomized placebo-controlled trial to test the effect of any intervention on incident AF,” Christine M. Albert, MD, MPH, Cedars-Sinai Medical Center in Los Angeles, said at a media briefing on VITAL-Rhythm before her formal presentation of the trial during the conference.

Its findings, she said, don’t support the use of marine-oil caps or vitamin D3 for primary prevention of incident AF. “Fortunately, they also do not show any increased risk in atrial fibrillation for patients who are using these supplements for other indications.”

Both agents are widely taken without physician supervision for their perceived benefits, and marine-oil caps in particular – often in special prescription formulations – may be used for reducing elevated triglyceride levels and, based on the results of REDUCE-IT, cutting cardiovascular risk.

“It’s pretty clear that there’s no evidence to suggest that either of these supplements is helpful for preventing atrial fibrillation. And I think that’s clear from the evidence these investigators presented,” said Jonathan P. Piccini, MD, MHS, Duke University, Durham, N.C., who wasn’t part of the study.

“It’s also a little disappointing because atrial fibrillation is such a huge problem, and the inability to identify preventative strategies is a repeated theme,” he said in an interview.
VITAL-Rhythm is an ancillary study within the VITAL trial, which showed no benefit from either supplement regarding risk for incident cancer or CV events, as reported at the AHA sessions 2 years ago. In fact, their effects seem sweepingly negative throughout the trial; in another ancillary study, VITAL-DKD, neither supplement helped preserve renal function over 5 years in patients with type 2 diabetes.   

The participants started VITAL without a history of AF, CV disease, or cancer; they were randomly assigned to take about a gram of omega-3 fatty acids, 2000 IU vitamin D3 daily, or their placebos, in a double randomization.

VITAL and its ancillary studies collectively undercut mechanistic theories about how omega-3 fatty acid and vitamin D supplements may affect AF risk, ideas derived from epidemiologic and dietary studies. They were thought perhaps “to have direct antiarrhythmic effects on myocytes through effects on ion channels, electrical remodeling, electrical stabilizing effects, and fluidity of the cell membranes,” observed Renate B. Schnabel, MD, MSc, University Heart Center, Hamburg, Germany, at the briefing. Or such effects might be related to beneficial effects on atherosclerosis, inflammation, or ischemic heart disease, she noted.

Neither idea is likely after VITAL and VITAL-Rhythm, said Dr. Schnabel, who spoke as an invited discussant after Albert’s formal presentation at AHA 2020.

That omega-3 fatty acid supplements may not improve AF incidence or risks has also been evident from many clinical trials and observational studies. Several, including REDUCE-IT, included some evidence for increasing risk for AF with marine-oil supplement intake. That may have happened in VITAL-Rhythm as well.

“While there was no evidence that the omega-3 three fatty acids prevented atrial fibrillation, there was a signal of perhaps more atrial fibrillation in the omega-3 fatty-acids group,” said Dr. Piccini, who directs his center’s electrophysiology clinical trials program.

A sensitivity analysis limited to participants who adhered to their assigned regimens, as opposed to the main intention-to-treat (ITT) analysis, showed a nonsignificant 13% increased hazard ratio for incident AF for the marine-oil supplement group. It reached a P value of .09, which can be interpreted as a trend.

“There are a few studies that have now showed a trend or an increased incidence of arrhythmia in patients treated with omega-3 fatty acids,” Dr. Piccini noted. “I don’t think it’s definitive, but it’s certainly something to keep an eye on.”

VITAL-Rhythm included an electrocardiography (ECG) substudy, yet to be reported, that should yield more insights about any such effects of marine-oil or vitamin D supplements in the trial, Dr. Albert said at the briefing.

The ancillary study assigned its 25,119 patients (mean age, 67 years; 51% women) to take vitamin D3 at 2000 IU/day, marine-oil supplements containing omega-3 fatty acids at 840 mg per day – 460 mg eicosapentaenoic acid (EPA) plus 380 mg docosahexaenoic acid (DHA) (Omacor, Pronova BioPharma) – or their placebos in a 2 x 2 randomization.

Incident cases of AF were identified through annual questionnaires in which the participants self-reported whether they had received a physician diagnosis of the arrhythmia, supplemented by Centers for Medicare & Medicaid Services claims data for AF hospital and clinical visits. Those led to a review of inpatient and outpatient records, from which AF events were adjudicated by an endpoint committee.

An electrocardiogram (72.9%) or physician’s report (27.1%) confirmed the AF diagnosis as the protocol required.

By those standards, 900 incident cases were identified, for a rate of 3.6% over a median of 5.3 years. They were paroxysmal in 58.4%, persistent in 38.4%, and indeterminant in 3.1%, Dr. Albert reported.

Of the 12,542 patients assigned to marine-oil caps by ITT, 469 (3.74%) developed incident AF in the ITT analysis, compared to 431 of 12,577 (3.43%) who received placebo, for an adjusted hazard ratio (HR) of 1.09 (95% CI, 0.96-1.24; P = .19).

The results were similar in two sensitivity analyses, one of which omitted patients with AF who may have had symptoms before randomization and another excluding those whose incident AF was identified solely in CMS data. But in the third “on treatment” sensitivity analysis, the HR for events was 1.13 (95% CI, 0.98-1.30; P = .09).

Outcomes for the vitamin D randomization were nearly the same, for an HR of 1.09 (95% CI, 0.96-1.25; P = .19) by ITT; the results were similar in all three sensitivity analyses.

“It’s not a tremendous signal of risk,” said Piccini of the marine-oil on-treatment analysis. But it, along with consistent evidence from other studies, does give him pause. “If a patient came to me and said,

Doctor, I want to take omega-3 fish oil, because I want to reduce my risk of events, as an arrhythmia doctor I would say, ‘We don’t have great evidence to do that for preventing atrial fibrillation. And there’s actually some evidence that it could mildly increase your risk of developing it.’ ”

For those prescribed evidence-based marine-oil therapy for other indications, he said, “I think the take-home message certainly is, if they report palpitations or other signs or symptoms that could be due to atrial fibrillation, we should be aggressive about screening for atrial fibrillation,” and making the diagnosis as appropriate. If the incident AF resolves after stopping the treatment, “maybe it’s reasonable to refrain from prescribing the medication for that patient.”

VITAL-Rhythm and VITAL are supported by multiple grants from the National Institutes of Health. Albert discloses receiving grant support from St. Jude Medical, Abbott, and Roche. Schnabel reports receiving honoraria from Bristol-Myers Squibb/Pfizer. Piccini previously disclosed receiving research grants from Abbott, the Association for the Advancement of Medical Instrumentation, Bayer, Boston Scientific, and Philips and serving as a consultant to Abbott, Allergan, ARCA Biopharma, Biotronik, Boston Scientific, LivaNova, Medtronic, Milestone, Sanofi, Philips, and UptoDate.

A version of this article originally appeared on Medscape.com.

Clinical trials of omega-3 fatty acid or vitamin D supplements have followed a long and winding road in search of benefits in cardiovascular (CV) disease, with wildly mixed results. But the journey may be in vain in one of cardiology’s frontier research areas, primary prevention of atrial fibrillation (AF), suggest primary results of the VITAL-Rhythm trial, presented Nov. 13 during the  American Heart Association (AHA) Scientific Sessions 2020 virtual meeting.

Neither marine-oil caps nor the vitamin D3 supplements made a difference to risk for incident AF, whether paroxysmal or persistent, over more than 5 years in the study, with more than 25,000 adults in the community. Nor did they seem to cause harm.

“To our knowledge, this is the first large-scale, long-term, randomized placebo-controlled trial to test the effect of any intervention on incident AF,” Christine M. Albert, MD, MPH, Cedars-Sinai Medical Center in Los Angeles, said at a media briefing on VITAL-Rhythm before her formal presentation of the trial during the conference.

Its findings, she said, don’t support the use of marine-oil caps or vitamin D3 for primary prevention of incident AF. “Fortunately, they also do not show any increased risk in atrial fibrillation for patients who are using these supplements for other indications.”

Both agents are widely taken without physician supervision for their perceived benefits, and marine-oil caps in particular – often in special prescription formulations – may be used for reducing elevated triglyceride levels and, based on the results of REDUCE-IT, cutting cardiovascular risk.

“It’s pretty clear that there’s no evidence to suggest that either of these supplements is helpful for preventing atrial fibrillation. And I think that’s clear from the evidence these investigators presented,” said Jonathan P. Piccini, MD, MHS, Duke University, Durham, N.C., who wasn’t part of the study.

“It’s also a little disappointing because atrial fibrillation is such a huge problem, and the inability to identify preventative strategies is a repeated theme,” he said in an interview.
VITAL-Rhythm is an ancillary study within the VITAL trial, which showed no benefit from either supplement regarding risk for incident cancer or CV events, as reported at the AHA sessions 2 years ago. In fact, their effects seem sweepingly negative throughout the trial; in another ancillary study, VITAL-DKD, neither supplement helped preserve renal function over 5 years in patients with type 2 diabetes.   

The participants started VITAL without a history of AF, CV disease, or cancer; they were randomly assigned to take about a gram of omega-3 fatty acids, 2000 IU vitamin D3 daily, or their placebos, in a double randomization.

VITAL and its ancillary studies collectively undercut mechanistic theories about how omega-3 fatty acid and vitamin D supplements may affect AF risk, ideas derived from epidemiologic and dietary studies. They were thought perhaps “to have direct antiarrhythmic effects on myocytes through effects on ion channels, electrical remodeling, electrical stabilizing effects, and fluidity of the cell membranes,” observed Renate B. Schnabel, MD, MSc, University Heart Center, Hamburg, Germany, at the briefing. Or such effects might be related to beneficial effects on atherosclerosis, inflammation, or ischemic heart disease, she noted.

Neither idea is likely after VITAL and VITAL-Rhythm, said Dr. Schnabel, who spoke as an invited discussant after Albert’s formal presentation at AHA 2020.

That omega-3 fatty acid supplements may not improve AF incidence or risks has also been evident from many clinical trials and observational studies. Several, including REDUCE-IT, included some evidence for increasing risk for AF with marine-oil supplement intake. That may have happened in VITAL-Rhythm as well.

“While there was no evidence that the omega-3 three fatty acids prevented atrial fibrillation, there was a signal of perhaps more atrial fibrillation in the omega-3 fatty-acids group,” said Dr. Piccini, who directs his center’s electrophysiology clinical trials program.

A sensitivity analysis limited to participants who adhered to their assigned regimens, as opposed to the main intention-to-treat (ITT) analysis, showed a nonsignificant 13% increased hazard ratio for incident AF for the marine-oil supplement group. It reached a P value of .09, which can be interpreted as a trend.

“There are a few studies that have now showed a trend or an increased incidence of arrhythmia in patients treated with omega-3 fatty acids,” Dr. Piccini noted. “I don’t think it’s definitive, but it’s certainly something to keep an eye on.”

VITAL-Rhythm included an electrocardiography (ECG) substudy, yet to be reported, that should yield more insights about any such effects of marine-oil or vitamin D supplements in the trial, Dr. Albert said at the briefing.

The ancillary study assigned its 25,119 patients (mean age, 67 years; 51% women) to take vitamin D3 at 2000 IU/day, marine-oil supplements containing omega-3 fatty acids at 840 mg per day – 460 mg eicosapentaenoic acid (EPA) plus 380 mg docosahexaenoic acid (DHA) (Omacor, Pronova BioPharma) – or their placebos in a 2 x 2 randomization.

Incident cases of AF were identified through annual questionnaires in which the participants self-reported whether they had received a physician diagnosis of the arrhythmia, supplemented by Centers for Medicare & Medicaid Services claims data for AF hospital and clinical visits. Those led to a review of inpatient and outpatient records, from which AF events were adjudicated by an endpoint committee.

An electrocardiogram (72.9%) or physician’s report (27.1%) confirmed the AF diagnosis as the protocol required.

By those standards, 900 incident cases were identified, for a rate of 3.6% over a median of 5.3 years. They were paroxysmal in 58.4%, persistent in 38.4%, and indeterminant in 3.1%, Dr. Albert reported.

Of the 12,542 patients assigned to marine-oil caps by ITT, 469 (3.74%) developed incident AF in the ITT analysis, compared to 431 of 12,577 (3.43%) who received placebo, for an adjusted hazard ratio (HR) of 1.09 (95% CI, 0.96-1.24; P = .19).

The results were similar in two sensitivity analyses, one of which omitted patients with AF who may have had symptoms before randomization and another excluding those whose incident AF was identified solely in CMS data. But in the third “on treatment” sensitivity analysis, the HR for events was 1.13 (95% CI, 0.98-1.30; P = .09).

Outcomes for the vitamin D randomization were nearly the same, for an HR of 1.09 (95% CI, 0.96-1.25; P = .19) by ITT; the results were similar in all three sensitivity analyses.

“It’s not a tremendous signal of risk,” said Piccini of the marine-oil on-treatment analysis. But it, along with consistent evidence from other studies, does give him pause. “If a patient came to me and said,

Doctor, I want to take omega-3 fish oil, because I want to reduce my risk of events, as an arrhythmia doctor I would say, ‘We don’t have great evidence to do that for preventing atrial fibrillation. And there’s actually some evidence that it could mildly increase your risk of developing it.’ ”

For those prescribed evidence-based marine-oil therapy for other indications, he said, “I think the take-home message certainly is, if they report palpitations or other signs or symptoms that could be due to atrial fibrillation, we should be aggressive about screening for atrial fibrillation,” and making the diagnosis as appropriate. If the incident AF resolves after stopping the treatment, “maybe it’s reasonable to refrain from prescribing the medication for that patient.”

VITAL-Rhythm and VITAL are supported by multiple grants from the National Institutes of Health. Albert discloses receiving grant support from St. Jude Medical, Abbott, and Roche. Schnabel reports receiving honoraria from Bristol-Myers Squibb/Pfizer. Piccini previously disclosed receiving research grants from Abbott, the Association for the Advancement of Medical Instrumentation, Bayer, Boston Scientific, and Philips and serving as a consultant to Abbott, Allergan, ARCA Biopharma, Biotronik, Boston Scientific, LivaNova, Medtronic, Milestone, Sanofi, Philips, and UptoDate.

A version of this article originally appeared on Medscape.com.

Cardiologists are already old hands at virtual meetings this year and are fast becoming experts on Zoom and other teleconferencing platforms, if not on how to unmute their microphones.

With expectations perhaps elevated and the new communications genre’s novelty on the wane, the American Heart Association (AHA) Scientific Sessions 2020 has a chance to both innovate with familiar formats and captivate with the field’s latest research findings.

Although the virtual AHA 2020 might not satisfy longings for face-to-face networking, shop talk, or kidding around over coffee, it will feature many traditional elements of the live conferences adapted for ear buds and small screens. They include late-breaking science (LBS) presentations and panel discussions, poster and live oral abstract presentations, meet-the-trialist talks, fireside-chat discussion forums, early career events, and satellite symposia.

The event may well hold lessons for future iterations of AHA Scientific Sessions in the postpandemic world, which some foresee as, potentially, an amalgam of the time-honored live format and a robust, complementary online presence.

Late-Breaking Science 1. Friday, November 13, 10:30 AM - 11:30 AM CST

The LBS sessions launch with the GALACTIC-HF trial, which — the world recently learned — may expand the burgeoning list of meds shown to improve clinical outcomes in chronic heart failure (HF) with reduced ejection fraction (HFrEF).

In cursory top-line results announced last month, those in the trial of more than 8000 patients who were randomly assigned to receive omecamtiv mecarbil (Amgen/Cytokinetics/Servier) showed a slight but significant benefit for the primary end point of cardiovascular (CV) death or HF events. The hazard ratio (HR), compared with standard care, was 0.92 (95% CI, 0.86 - 0.99; P = .025), noted a press release from Amgen.

Among the announcement’s few other details was a short take on safety outcomes: no difference in risk for “adverse events, including major ischemic cardiac events,” between the active and control groups. The presentation is sure to provide further insights and caveats, if any, along with other information crucial to the study’s interpretation.

Next on the schedule is the closely watched AFFIRM-AHF, billed as the first major outcomes trial of iron administration to iron-deficient patients with acute HF. It randomly assigned more than 1000 such patients to receive IV ferric carboxymaltose or a placebo. The first dose was given in-hospital and subsequent doses at home for 24 weeks or until patients were no longer iron deficient. They were followed to 1 year for the primary end point of recurrent HF hospitalizations or CV death.

The session wraps with the VITAL Rhythm trial, a substudy of the doubly randomized VITAL trial that explored the effects of vitamin D and omega-3 fatty acid supplementation on CV and cancer risk in more than 25,000 patients in the community. The substudy explored the effects of two active therapies, a preparation of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) (Omacor, Reliant Pharmaceuticals) or vitamin D3 supplements, on new-onset atrial fibrillation (AF) as the primary end point; it also looked at risk for sudden death.
 

Late-Breaking Science 2. Friday, November 13, 12:00 PM - 1:00 PM CST

Dominating the session in two presentations, the (TIPS)-3 trial explored a polypill primary-prevention strategy and daily aspirin with vitamin D supplementation in three separate placebo-controlled comparisons in more than 5700 “intermediate risk” participants 55 years and older, mostly in developing countries.

The daily polypill in this trial is a combination of hydrochlorothiazide 25 mg, atenolol 100 mg, ramipril 10 mg, and simvastatin 40 mg; aspirin was given at 75 mg daily and vitamin D at 60,000 IU monthly.

The participants are followed for a primary end point composed of major CV disease, HF, resuscitated cardiac arrest, or ischemia-driven revascularization for the polypill comparison; CV events or cancer for the aspirin comparison; and fracture risk for the vitamin D component of the trial.

In the Swedish Cardiopulmonary Bioimage Study (SCAPIS), presented third in the session, a random sample of adults from throughout Sweden, projected at about 30,000, underwent a 2-day evaluation for metabolic risk factors plus ultrasound and coronary and lung CT scans. The group has been followed for risks for myocardial infarction (MI), sudden death, and other cardiac diseases; and chronic obstructive pulmonary disease (COPD) and other lung disorders.
 

Late-Breaking Science 3. Saturday, November 14, 12:00 PM - 1:00 PM CST

The field may learn more mechanistically about MI associated with nonobstructed coronary arteries (MINOCA) than ever before from the Heart Attack Research Program-Imaging Study (HARP). The observational study is enrolling a projected 450 patients with suspected MI and ischemic symptoms who were referred for cardiac catheterization.

Their evaluation includes coronary optical coherence tomographic (OCT) scanning and cardiac magnetic resonance (CMR) imaging for evidence of coronary plaque disruption as the primary end point. The patients are to be followed for 10 years for a composite of death, unstable angina, stroke, recurrent MI, diagnostic or interventional catheterization, and cardiac hospitalization.

The major direct oral anticoagulant (DOAC) comparisons with warfarin in atrial fibrillation (AF) didn’t include many patients with prosthetic valve implants. In contrast, the RIVER trial enrolled 1005 adults with either persistent or paroxysmal AF and bioprosthetic mitral valves and assigned them to rivaroxaban 20 mg or the vitamin K antagonist.

The presentation will include the noninferiority primary outcome of major clinical events, which is stroke, transient ischemic attack (TIA), major bleeding, death from any cause, valve thrombosis, other systemic embolism, or HF hospitalization over 12 months.

This session also includes ALPHEUS, a trial pitting ticagrelor (Brilinta/Brilique, AstraZeneca) against mainstay clopidogrel in a setting that is mostly uncharted for such comparisons, elective percutaneous coronary intervention (PCI).

About 1900 patients with stable coronary disease were randomly assigned to a month of treatment with either agent on top of continuous aspirin. The primary end point is PCI-related MI or myocardial injury within 48 hours of the procedure.
 

Late-Breaking Science 4. Sunday, November 15, 9:00 AM - 10:00 AM CST

The Self-Assessment Method for Statin Side-effects Or Nocebo (SAMSON) trial may be one of the AHA 2020 frontrunners for early buzz and anticipation. So it’s with some irony that it’s also among the smallest of the LBS studies, at 60 patients, which was nonetheless considered sufficient due to its unusual design.

SAMSON is the latest and perhaps most rigorous attempt to clarify whether symptoms, especially muscle pain or discomfort, attributed to statins by many patients are pharmacologic in origin or, rather, a nocebo effect from negative expectations about statin side effects.

The study patients, all of whom had previously halted statins because of side effects, were assigned to follow three separate regimens, each for month, in a randomized order; they did that four times, for a total of 12 months. The regimens consisted of atorvastatin 20 mg daily, a placebo, or neither.

Patients kept daily logs of any perceived side effects. Parity between side effects experienced on the statin and the placebo would point to a nocebo effect, whereas a significant excess on atorvastatin would suggest they are direct drug effects.

The session also features two randomized trials each on a unique omega-3 fatty acid preparation for either secondary prevention or high-risk primary prevention, in both cases compared with a corn-oil placebo.

The Omega-3 Fatty Acids in Elderly Patients with Myocardial Infarction (OMEMI) trial randomly assigned more than 1000 elderly post-MI patients to take Pikasol (Orkla Care) at 1.8 g EPA and DHA per day or the placebo. It looked for all-cause mortality, nonfatal MI, stroke, revascularization, or hospitalization for new or worsened HF over 24 months.

The STRENGTH trial, with a planned enrollment of about 13,000 high-vascular-risk patients, looked primarily at the effect of daily treatment with Epanova (AstraZeneca), which also contains DHA and EPA, on the composite of CV death, nonfatal MI or stroke, coronary revascularization, and hospitalization for unstable angina. The trial was halted early for low likelihood of benefit, AstraZeneca announced in January of this year.
 

Late-Breaking Science 5. Sunday, November 15, 7:15 PM - 8:30 PM CST

Slated for the session is the primary analysis of the PIONEER 3 trial, conducted in the United States, Europe, and Japan. It compared the BuMA Supreme biodegradable drug-coated stent (SinoMed) with the durable Xience (Abbott Vascular) and Promus (Boston Scientific) drug-eluting stents. The trial followed more than 1600 patients treated for chronic stable angina or acute coronary syndrome (ACS) for the 1-year composite of cardiac death, target-vessel-related MI, and clinically driven target-lesion revascularization.
 

Late-Breaking Science 6. Monday, November 16, 9:00 AM - 10:00 AM CST

The EARLY-AF trial enrolled 303 patients with symptomatic paroxysmal or persistent AF suitable for catheter ablation, assigning them to pulmonary vein isolation (PVI) by cryoablation using the Arctic Front (Medtronic) system or antiarrhythmic drug therapy for rhythm control. The primary end point is time to recurrence of AF, atrial flutter, or atrial tachycardia, whether symptomatic or asymptomatic, as determined by implantable loop recorder. Patients will also be followed for symptoms and arrhythmia burden.

Also in the session, the SEARCH-AF study randomized almost 400 patients undergoing cardiac surgery who were engaged subacutely with one of two commercial portable cardiac rhythm monitoring devices (CardioSTAT, Icentia; or SEEQ, Medtronic) or, alternatively, to receive usual postoperative care

The patients, considered to be at high risk for stroke with no history of AF, were followed for the primary end point of cumulative burden of AF or atrial flutter exceeding 6 minutes or documentation of either arrhythmia by 12-lead ECG within 30 days.

Two other studies in the session look at different approaches to AF screening, one using a handheld ECG monitor in the primary care setting and the other wearable monitors in the form of a patch or wristband. The VITAL-AF presentation is titled “Screening for Atrial Fibrillation in Older Adults at Primary Care Visits Using Single Lead Electrocardiograms.” The other presentation, on the study mSToPS, is called “Three-Year Clinical Outcomes in a Nationwide, Randomized, Pragmatic Clinical Trial of Atrial Fibrillation Screening — Mhealth Screening to Prevent Strokes.”
 

Late-Breaking Science 7. Monday, November 16, 7:00 PM - 8:30 PM CST

In the randomized FIDELIO-DKD trial with more than 5700 patients with type 2 diabetes and associated kidney disease, those assigned to the novel mineralocorticoid receptor antagonist (MRA) finerenone (Bayer) showed an 18% drop in risk for adverse renal events, including death from renal causes (P = .001), over a median of 2.6 years. That primary outcome was previously presented in detail at a nephrology meeting and published in the New England Journal of Medicine in October.

Patients on the MRA showed a similar reduction in a composite CV-event end point, it was also reported at that time. A follow-up presentation at the AHA sessions promises to dive deeper into the trial’s CV outcomes.

In the RAPID-CTCA study, slated next for the session, 1749 patients with suspected or confirmed intermediate-risk ACS were randomly assigned to undergo computed tomographic coronary angiography (CTCA) for guiding treatment decisions or a standard-of-care strategy. It followed patients for the primary end point of death or nonfatal MI over 1 year.

Rilonacept (Arcalyst, Kiniksa/Regeneron) is an interleukin-1α and -1β inhibitor used in several autoinflammatory diseases that went unsuccessfully before regulators for the treatment of gout. The RHAPSODY trial has now explored its use against recurrent pericarditis in a randomized trial that entered 86 patients 12 years and older who had previously experienced at least three episodes.

In top-line results reported to investors in June, patients assigned to receive the drug instead of placebo in weekly injections showed a 96% drop in risk for pericarditis recurrence and “no or minimal pain” on more than 90% of days in the trial. A full presentation is expected during this LBS session.

Also on the schedule is the THALES study, which led the US Food and Drug Administration (FDA) to expand indications for ticagrelor to include stroke prevention in patients with a history of acute ischemic stroke or high-risk TIA based on the trial’s primary results published in July.

In THALES, more than 11,000 patients with mild to moderate acute noncardiogenic ischemic stroke or TIA were randomly assigned within 24 hours to start on daily aspirin with or without ticagrelor given as a 180 mg loading dose followed by 90 mg twice daily for 30 days.

At the end of a month, it was reported, those on dual antiplatelet therapy showed a 17% risk reduction (P = .02) for the primary end point of stroke or death, at the cost of a slight but significant increase in “severe” bleeding (0.5% vs 0.1%; P = .001).

The session is to conclude with two related studies that fell victim in part to the COVID-19 pandemic, both of which explored sotagliflozin (Zynquista, Sanofi/Lexicon), an inhibitor of both sodium-glucose cotransporters 1 and 2 (SGLT1 and SGLT2, respectively) in patients with type 2 diabetes.

SOLOIST-WHF had entered 1222 such patients hospitalized with urgent or worsening HF at 466 centers and randomly assigned them to receive sotagliflozin or placebo; they were followed for the composite of CV death or HF events. SCORED reached an enrollment of 10,584 patients with diabetes and chronic kidney disease at 754 hospitals, following them for the same primary end point.

Lexicon announced in March that the trials would be “closed out early” because of the unavailability of funding “together with uncertainties relating to the COVID-19 pandemic on the trials.” The LBS presentation is expected to include analyses of available data; SOLOIST-WHF launched in summer 2018 and SCORED began in November 2017.
 

Late-Breaking Science 8. Tuesday, November 17, 9:00 AM - 10:00 AM CST

Most of this LBS session is devoted to the AHA COVID-19 Cardiovascular Disease registry, which is looking at the hospital journey, clinical course, and outcomes of patients hospitalized with SARS-CoV-2 infections at centers participating in the organization’s Get With The Guidelines (GWTG) quality-improvement program. As of September, the registry included data from more than 15,000 patients.

Scheduled presentations include a summary of the registry’s design and initial results; an analysis of racial and ethnic variation in therapy and clinical outcomes; an exploration of how body mass index influenced outcomes, including death, use of mechanical ventilation, and cardiovascular end points, in patients with COVID-19; and a deep dive into the relation between CV disease and clinical outcomes in the cohort.

The last of this LBS block’s five talks will cover the randomized Influenza Vaccine to Effectively Stop Cardio Thoracic Events and Decompensated Heart Failure (INVESTED) trial, which compared vaccination with high-dose trivalent influenza vaccine or a standard-dose quadrivalent vaccine in 5388 adults with a history of hospitalization for either MI or HF. Patients were required to have at least one other CV risk factor, such as older age, reduced left ventricular ejection fraction, or diabetes.

INVESTED tracked the patients at 190 centers across an initial pilot flu season and three subsequent flu seasons for the primary end point of death from any cause or cardiopulmonary hospitalization.

The trial is one of at least three that have been looking at the effect of flu vaccination on cardiovascular outcomes; results from the other two — IAMI, with more than 2500 participants, and RCT-IVVE, with an enrollment of 4871 — are planned for presentation in 2021, theheart.org | Medscape Cardiology recently reported.
 

Late-Breaking Science 9. Tuesday, November 17, 12:00 PM - 1:00 PM CST

The conference’s concluding LBS session features three studies that relied on technologic strategies for modifying patient compliance and other care behaviors and one that used human-centered design principles to develop a group-care model aimed improving the management of diabetes, hypertension, and other noncommunicable diseases in economically disadvantaged regions of Kenya.

The EPIC-HF trial tested a strategy for improving HFrEF medication-plan engagement by use of a video and documents delivered to patients several times by email or text prior to their follow-up clinic appointments. The strategy was compared with usual care for its effect on HF-medication optimization over 1 month and 1 year in a total of 306 patients.

Following EPIC-HF on the schedule is the MYROAD trial, looking at the efficacy of discharge instructions provided to patients with acute HF as an audio recording that they and their physicians could replay on demand, the idea being to increase adherence to the instructions. The trial’s 1073 patients were assigned to the novel strategy or usual care and followed for HF rehospitalization within 30 days.

MYROAD is to be followed by a presentation entitled “Digital Care Transformation: One-Year Report of >5,000 Patients Enrolled in a Remote Algorithm-Based CV Risk Management Program to Achieve Optimal Lipid and Hypertension Control.”

Rounding out the LBS session: the Bridging Income Generation With Group Integrated Care (BIGPIC) program, a pilot study that developed and executed “a healthcare delivery model targeting health behaviors, medication adherence, and financial barriers to accessing healthcare” in four rural counties in Kenya.

The model features locally developed plans, tailored for regional needs, that are said to “combine the benefits of microfinance with the peer support available through group medical care to enhance management of hypertension and diabetes.” The microfinance component is aimed at improving household economies to alleviate the financial burden of care and clinic attendance, and for the health effects of improved quality of life.

The study randomized 2890 adults with diabetes or prediabetes to one of four groups: usual care plus microfinance group support, group medical visits only or combined with microfinance group support, or usual care only. They were followed for changes in systolic blood pressure and CV-risk score over 12 months.

Lloyd-Jones and Fauci declared no conflicts.

This article first appeared on Medscape.com.

Cardiologists are already old hands at virtual meetings this year and are fast becoming experts on Zoom and other teleconferencing platforms, if not on how to unmute their microphones.

With expectations perhaps elevated and the new communications genre’s novelty on the wane, the American Heart Association (AHA) Scientific Sessions 2020 has a chance to both innovate with familiar formats and captivate with the field’s latest research findings.

Although the virtual AHA 2020 might not satisfy longings for face-to-face networking, shop talk, or kidding around over coffee, it will feature many traditional elements of the live conferences adapted for ear buds and small screens. They include late-breaking science (LBS) presentations and panel discussions, poster and live oral abstract presentations, meet-the-trialist talks, fireside-chat discussion forums, early career events, and satellite symposia.

The event may well hold lessons for future iterations of AHA Scientific Sessions in the postpandemic world, which some foresee as, potentially, an amalgam of the time-honored live format and a robust, complementary online presence.

Late-Breaking Science 1. Friday, November 13, 10:30 AM - 11:30 AM CST

The LBS sessions launch with the GALACTIC-HF trial, which — the world recently learned — may expand the burgeoning list of meds shown to improve clinical outcomes in chronic heart failure (HF) with reduced ejection fraction (HFrEF).

In cursory top-line results announced last month, those in the trial of more than 8000 patients who were randomly assigned to receive omecamtiv mecarbil (Amgen/Cytokinetics/Servier) showed a slight but significant benefit for the primary end point of cardiovascular (CV) death or HF events. The hazard ratio (HR), compared with standard care, was 0.92 (95% CI, 0.86 - 0.99; P = .025), noted a press release from Amgen.

Among the announcement’s few other details was a short take on safety outcomes: no difference in risk for “adverse events, including major ischemic cardiac events,” between the active and control groups. The presentation is sure to provide further insights and caveats, if any, along with other information crucial to the study’s interpretation.

Next on the schedule is the closely watched AFFIRM-AHF, billed as the first major outcomes trial of iron administration to iron-deficient patients with acute HF. It randomly assigned more than 1000 such patients to receive IV ferric carboxymaltose or a placebo. The first dose was given in-hospital and subsequent doses at home for 24 weeks or until patients were no longer iron deficient. They were followed to 1 year for the primary end point of recurrent HF hospitalizations or CV death.

The session wraps with the VITAL Rhythm trial, a substudy of the doubly randomized VITAL trial that explored the effects of vitamin D and omega-3 fatty acid supplementation on CV and cancer risk in more than 25,000 patients in the community. The substudy explored the effects of two active therapies, a preparation of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) (Omacor, Reliant Pharmaceuticals) or vitamin D3 supplements, on new-onset atrial fibrillation (AF) as the primary end point; it also looked at risk for sudden death.
 

Late-Breaking Science 2. Friday, November 13, 12:00 PM - 1:00 PM CST

Dominating the session in two presentations, the (TIPS)-3 trial explored a polypill primary-prevention strategy and daily aspirin with vitamin D supplementation in three separate placebo-controlled comparisons in more than 5700 “intermediate risk” participants 55 years and older, mostly in developing countries.

The daily polypill in this trial is a combination of hydrochlorothiazide 25 mg, atenolol 100 mg, ramipril 10 mg, and simvastatin 40 mg; aspirin was given at 75 mg daily and vitamin D at 60,000 IU monthly.

The participants are followed for a primary end point composed of major CV disease, HF, resuscitated cardiac arrest, or ischemia-driven revascularization for the polypill comparison; CV events or cancer for the aspirin comparison; and fracture risk for the vitamin D component of the trial.

In the Swedish Cardiopulmonary Bioimage Study (SCAPIS), presented third in the session, a random sample of adults from throughout Sweden, projected at about 30,000, underwent a 2-day evaluation for metabolic risk factors plus ultrasound and coronary and lung CT scans. The group has been followed for risks for myocardial infarction (MI), sudden death, and other cardiac diseases; and chronic obstructive pulmonary disease (COPD) and other lung disorders.
 

Late-Breaking Science 3. Saturday, November 14, 12:00 PM - 1:00 PM CST

The field may learn more mechanistically about MI associated with nonobstructed coronary arteries (MINOCA) than ever before from the Heart Attack Research Program-Imaging Study (HARP). The observational study is enrolling a projected 450 patients with suspected MI and ischemic symptoms who were referred for cardiac catheterization.

Their evaluation includes coronary optical coherence tomographic (OCT) scanning and cardiac magnetic resonance (CMR) imaging for evidence of coronary plaque disruption as the primary end point. The patients are to be followed for 10 years for a composite of death, unstable angina, stroke, recurrent MI, diagnostic or interventional catheterization, and cardiac hospitalization.

The major direct oral anticoagulant (DOAC) comparisons with warfarin in atrial fibrillation (AF) didn’t include many patients with prosthetic valve implants. In contrast, the RIVER trial enrolled 1005 adults with either persistent or paroxysmal AF and bioprosthetic mitral valves and assigned them to rivaroxaban 20 mg or the vitamin K antagonist.

The presentation will include the noninferiority primary outcome of major clinical events, which is stroke, transient ischemic attack (TIA), major bleeding, death from any cause, valve thrombosis, other systemic embolism, or HF hospitalization over 12 months.

This session also includes ALPHEUS, a trial pitting ticagrelor (Brilinta/Brilique, AstraZeneca) against mainstay clopidogrel in a setting that is mostly uncharted for such comparisons, elective percutaneous coronary intervention (PCI).

About 1900 patients with stable coronary disease were randomly assigned to a month of treatment with either agent on top of continuous aspirin. The primary end point is PCI-related MI or myocardial injury within 48 hours of the procedure.
 

Late-Breaking Science 4. Sunday, November 15, 9:00 AM - 10:00 AM CST

The Self-Assessment Method for Statin Side-effects Or Nocebo (SAMSON) trial may be one of the AHA 2020 frontrunners for early buzz and anticipation. So it’s with some irony that it’s also among the smallest of the LBS studies, at 60 patients, which was nonetheless considered sufficient due to its unusual design.

SAMSON is the latest and perhaps most rigorous attempt to clarify whether symptoms, especially muscle pain or discomfort, attributed to statins by many patients are pharmacologic in origin or, rather, a nocebo effect from negative expectations about statin side effects.

The study patients, all of whom had previously halted statins because of side effects, were assigned to follow three separate regimens, each for month, in a randomized order; they did that four times, for a total of 12 months. The regimens consisted of atorvastatin 20 mg daily, a placebo, or neither.

Patients kept daily logs of any perceived side effects. Parity between side effects experienced on the statin and the placebo would point to a nocebo effect, whereas a significant excess on atorvastatin would suggest they are direct drug effects.

The session also features two randomized trials each on a unique omega-3 fatty acid preparation for either secondary prevention or high-risk primary prevention, in both cases compared with a corn-oil placebo.

The Omega-3 Fatty Acids in Elderly Patients with Myocardial Infarction (OMEMI) trial randomly assigned more than 1000 elderly post-MI patients to take Pikasol (Orkla Care) at 1.8 g EPA and DHA per day or the placebo. It looked for all-cause mortality, nonfatal MI, stroke, revascularization, or hospitalization for new or worsened HF over 24 months.

The STRENGTH trial, with a planned enrollment of about 13,000 high-vascular-risk patients, looked primarily at the effect of daily treatment with Epanova (AstraZeneca), which also contains DHA and EPA, on the composite of CV death, nonfatal MI or stroke, coronary revascularization, and hospitalization for unstable angina. The trial was halted early for low likelihood of benefit, AstraZeneca announced in January of this year.
 

Late-Breaking Science 5. Sunday, November 15, 7:15 PM - 8:30 PM CST

Slated for the session is the primary analysis of the PIONEER 3 trial, conducted in the United States, Europe, and Japan. It compared the BuMA Supreme biodegradable drug-coated stent (SinoMed) with the durable Xience (Abbott Vascular) and Promus (Boston Scientific) drug-eluting stents. The trial followed more than 1600 patients treated for chronic stable angina or acute coronary syndrome (ACS) for the 1-year composite of cardiac death, target-vessel-related MI, and clinically driven target-lesion revascularization.
 

Late-Breaking Science 6. Monday, November 16, 9:00 AM - 10:00 AM CST

The EARLY-AF trial enrolled 303 patients with symptomatic paroxysmal or persistent AF suitable for catheter ablation, assigning them to pulmonary vein isolation (PVI) by cryoablation using the Arctic Front (Medtronic) system or antiarrhythmic drug therapy for rhythm control. The primary end point is time to recurrence of AF, atrial flutter, or atrial tachycardia, whether symptomatic or asymptomatic, as determined by implantable loop recorder. Patients will also be followed for symptoms and arrhythmia burden.

Also in the session, the SEARCH-AF study randomized almost 400 patients undergoing cardiac surgery who were engaged subacutely with one of two commercial portable cardiac rhythm monitoring devices (CardioSTAT, Icentia; or SEEQ, Medtronic) or, alternatively, to receive usual postoperative care

The patients, considered to be at high risk for stroke with no history of AF, were followed for the primary end point of cumulative burden of AF or atrial flutter exceeding 6 minutes or documentation of either arrhythmia by 12-lead ECG within 30 days.

Two other studies in the session look at different approaches to AF screening, one using a handheld ECG monitor in the primary care setting and the other wearable monitors in the form of a patch or wristband. The VITAL-AF presentation is titled “Screening for Atrial Fibrillation in Older Adults at Primary Care Visits Using Single Lead Electrocardiograms.” The other presentation, on the study mSToPS, is called “Three-Year Clinical Outcomes in a Nationwide, Randomized, Pragmatic Clinical Trial of Atrial Fibrillation Screening — Mhealth Screening to Prevent Strokes.”
 

Late-Breaking Science 7. Monday, November 16, 7:00 PM - 8:30 PM CST

In the randomized FIDELIO-DKD trial with more than 5700 patients with type 2 diabetes and associated kidney disease, those assigned to the novel mineralocorticoid receptor antagonist (MRA) finerenone (Bayer) showed an 18% drop in risk for adverse renal events, including death from renal causes (P = .001), over a median of 2.6 years. That primary outcome was previously presented in detail at a nephrology meeting and published in the New England Journal of Medicine in October.

Patients on the MRA showed a similar reduction in a composite CV-event end point, it was also reported at that time. A follow-up presentation at the AHA sessions promises to dive deeper into the trial’s CV outcomes.

In the RAPID-CTCA study, slated next for the session, 1749 patients with suspected or confirmed intermediate-risk ACS were randomly assigned to undergo computed tomographic coronary angiography (CTCA) for guiding treatment decisions or a standard-of-care strategy. It followed patients for the primary end point of death or nonfatal MI over 1 year.

Rilonacept (Arcalyst, Kiniksa/Regeneron) is an interleukin-1α and -1β inhibitor used in several autoinflammatory diseases that went unsuccessfully before regulators for the treatment of gout. The RHAPSODY trial has now explored its use against recurrent pericarditis in a randomized trial that entered 86 patients 12 years and older who had previously experienced at least three episodes.

In top-line results reported to investors in June, patients assigned to receive the drug instead of placebo in weekly injections showed a 96% drop in risk for pericarditis recurrence and “no or minimal pain” on more than 90% of days in the trial. A full presentation is expected during this LBS session.

Also on the schedule is the THALES study, which led the US Food and Drug Administration (FDA) to expand indications for ticagrelor to include stroke prevention in patients with a history of acute ischemic stroke or high-risk TIA based on the trial’s primary results published in July.

In THALES, more than 11,000 patients with mild to moderate acute noncardiogenic ischemic stroke or TIA were randomly assigned within 24 hours to start on daily aspirin with or without ticagrelor given as a 180 mg loading dose followed by 90 mg twice daily for 30 days.

At the end of a month, it was reported, those on dual antiplatelet therapy showed a 17% risk reduction (P = .02) for the primary end point of stroke or death, at the cost of a slight but significant increase in “severe” bleeding (0.5% vs 0.1%; P = .001).

The session is to conclude with two related studies that fell victim in part to the COVID-19 pandemic, both of which explored sotagliflozin (Zynquista, Sanofi/Lexicon), an inhibitor of both sodium-glucose cotransporters 1 and 2 (SGLT1 and SGLT2, respectively) in patients with type 2 diabetes.

SOLOIST-WHF had entered 1222 such patients hospitalized with urgent or worsening HF at 466 centers and randomly assigned them to receive sotagliflozin or placebo; they were followed for the composite of CV death or HF events. SCORED reached an enrollment of 10,584 patients with diabetes and chronic kidney disease at 754 hospitals, following them for the same primary end point.

Lexicon announced in March that the trials would be “closed out early” because of the unavailability of funding “together with uncertainties relating to the COVID-19 pandemic on the trials.” The LBS presentation is expected to include analyses of available data; SOLOIST-WHF launched in summer 2018 and SCORED began in November 2017.
 

Late-Breaking Science 8. Tuesday, November 17, 9:00 AM - 10:00 AM CST

Most of this LBS session is devoted to the AHA COVID-19 Cardiovascular Disease registry, which is looking at the hospital journey, clinical course, and outcomes of patients hospitalized with SARS-CoV-2 infections at centers participating in the organization’s Get With The Guidelines (GWTG) quality-improvement program. As of September, the registry included data from more than 15,000 patients.

Scheduled presentations include a summary of the registry’s design and initial results; an analysis of racial and ethnic variation in therapy and clinical outcomes; an exploration of how body mass index influenced outcomes, including death, use of mechanical ventilation, and cardiovascular end points, in patients with COVID-19; and a deep dive into the relation between CV disease and clinical outcomes in the cohort.

The last of this LBS block’s five talks will cover the randomized Influenza Vaccine to Effectively Stop Cardio Thoracic Events and Decompensated Heart Failure (INVESTED) trial, which compared vaccination with high-dose trivalent influenza vaccine or a standard-dose quadrivalent vaccine in 5388 adults with a history of hospitalization for either MI or HF. Patients were required to have at least one other CV risk factor, such as older age, reduced left ventricular ejection fraction, or diabetes.

INVESTED tracked the patients at 190 centers across an initial pilot flu season and three subsequent flu seasons for the primary end point of death from any cause or cardiopulmonary hospitalization.

The trial is one of at least three that have been looking at the effect of flu vaccination on cardiovascular outcomes; results from the other two — IAMI, with more than 2500 participants, and RCT-IVVE, with an enrollment of 4871 — are planned for presentation in 2021, theheart.org | Medscape Cardiology recently reported.
 

Late-Breaking Science 9. Tuesday, November 17, 12:00 PM - 1:00 PM CST

The conference’s concluding LBS session features three studies that relied on technologic strategies for modifying patient compliance and other care behaviors and one that used human-centered design principles to develop a group-care model aimed improving the management of diabetes, hypertension, and other noncommunicable diseases in economically disadvantaged regions of Kenya.

The EPIC-HF trial tested a strategy for improving HFrEF medication-plan engagement by use of a video and documents delivered to patients several times by email or text prior to their follow-up clinic appointments. The strategy was compared with usual care for its effect on HF-medication optimization over 1 month and 1 year in a total of 306 patients.

Following EPIC-HF on the schedule is the MYROAD trial, looking at the efficacy of discharge instructions provided to patients with acute HF as an audio recording that they and their physicians could replay on demand, the idea being to increase adherence to the instructions. The trial’s 1073 patients were assigned to the novel strategy or usual care and followed for HF rehospitalization within 30 days.

MYROAD is to be followed by a presentation entitled “Digital Care Transformation: One-Year Report of >5,000 Patients Enrolled in a Remote Algorithm-Based CV Risk Management Program to Achieve Optimal Lipid and Hypertension Control.”

Rounding out the LBS session: the Bridging Income Generation With Group Integrated Care (BIGPIC) program, a pilot study that developed and executed “a healthcare delivery model targeting health behaviors, medication adherence, and financial barriers to accessing healthcare” in four rural counties in Kenya.

The model features locally developed plans, tailored for regional needs, that are said to “combine the benefits of microfinance with the peer support available through group medical care to enhance management of hypertension and diabetes.” The microfinance component is aimed at improving household economies to alleviate the financial burden of care and clinic attendance, and for the health effects of improved quality of life.

The study randomized 2890 adults with diabetes or prediabetes to one of four groups: usual care plus microfinance group support, group medical visits only or combined with microfinance group support, or usual care only. They were followed for changes in systolic blood pressure and CV-risk score over 12 months.

Lloyd-Jones and Fauci declared no conflicts.

This article first appeared on Medscape.com.

Cardiologists are already old hands at virtual meetings this year and are fast becoming experts on Zoom and other teleconferencing platforms, if not on how to unmute their microphones.

With expectations perhaps elevated and the new communications genre’s novelty on the wane, the American Heart Association (AHA) Scientific Sessions 2020 has a chance to both innovate with familiar formats and captivate with the field’s latest research findings.

Although the virtual AHA 2020 might not satisfy longings for face-to-face networking, shop talk, or kidding around over coffee, it will feature many traditional elements of the live conferences adapted for ear buds and small screens. They include late-breaking science (LBS) presentations and panel discussions, poster and live oral abstract presentations, meet-the-trialist talks, fireside-chat discussion forums, early career events, and satellite symposia.

The event may well hold lessons for future iterations of AHA Scientific Sessions in the postpandemic world, which some foresee as, potentially, an amalgam of the time-honored live format and a robust, complementary online presence.

Late-Breaking Science 1. Friday, November 13, 10:30 AM - 11:30 AM CST

The LBS sessions launch with the GALACTIC-HF trial, which — the world recently learned — may expand the burgeoning list of meds shown to improve clinical outcomes in chronic heart failure (HF) with reduced ejection fraction (HFrEF).

In cursory top-line results announced last month, those in the trial of more than 8000 patients who were randomly assigned to receive omecamtiv mecarbil (Amgen/Cytokinetics/Servier) showed a slight but significant benefit for the primary end point of cardiovascular (CV) death or HF events. The hazard ratio (HR), compared with standard care, was 0.92 (95% CI, 0.86 - 0.99; P = .025), noted a press release from Amgen.

Among the announcement’s few other details was a short take on safety outcomes: no difference in risk for “adverse events, including major ischemic cardiac events,” between the active and control groups. The presentation is sure to provide further insights and caveats, if any, along with other information crucial to the study’s interpretation.

Next on the schedule is the closely watched AFFIRM-AHF, billed as the first major outcomes trial of iron administration to iron-deficient patients with acute HF. It randomly assigned more than 1000 such patients to receive IV ferric carboxymaltose or a placebo. The first dose was given in-hospital and subsequent doses at home for 24 weeks or until patients were no longer iron deficient. They were followed to 1 year for the primary end point of recurrent HF hospitalizations or CV death.

The session wraps with the VITAL Rhythm trial, a substudy of the doubly randomized VITAL trial that explored the effects of vitamin D and omega-3 fatty acid supplementation on CV and cancer risk in more than 25,000 patients in the community. The substudy explored the effects of two active therapies, a preparation of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) (Omacor, Reliant Pharmaceuticals) or vitamin D3 supplements, on new-onset atrial fibrillation (AF) as the primary end point; it also looked at risk for sudden death.
 

Late-Breaking Science 2. Friday, November 13, 12:00 PM - 1:00 PM CST

Dominating the session in two presentations, the (TIPS)-3 trial explored a polypill primary-prevention strategy and daily aspirin with vitamin D supplementation in three separate placebo-controlled comparisons in more than 5700 “intermediate risk” participants 55 years and older, mostly in developing countries.

The daily polypill in this trial is a combination of hydrochlorothiazide 25 mg, atenolol 100 mg, ramipril 10 mg, and simvastatin 40 mg; aspirin was given at 75 mg daily and vitamin D at 60,000 IU monthly.

The participants are followed for a primary end point composed of major CV disease, HF, resuscitated cardiac arrest, or ischemia-driven revascularization for the polypill comparison; CV events or cancer for the aspirin comparison; and fracture risk for the vitamin D component of the trial.

In the Swedish Cardiopulmonary Bioimage Study (SCAPIS), presented third in the session, a random sample of adults from throughout Sweden, projected at about 30,000, underwent a 2-day evaluation for metabolic risk factors plus ultrasound and coronary and lung CT scans. The group has been followed for risks for myocardial infarction (MI), sudden death, and other cardiac diseases; and chronic obstructive pulmonary disease (COPD) and other lung disorders.
 

Late-Breaking Science 3. Saturday, November 14, 12:00 PM - 1:00 PM CST

The field may learn more mechanistically about MI associated with nonobstructed coronary arteries (MINOCA) than ever before from the Heart Attack Research Program-Imaging Study (HARP). The observational study is enrolling a projected 450 patients with suspected MI and ischemic symptoms who were referred for cardiac catheterization.

Their evaluation includes coronary optical coherence tomographic (OCT) scanning and cardiac magnetic resonance (CMR) imaging for evidence of coronary plaque disruption as the primary end point. The patients are to be followed for 10 years for a composite of death, unstable angina, stroke, recurrent MI, diagnostic or interventional catheterization, and cardiac hospitalization.

The major direct oral anticoagulant (DOAC) comparisons with warfarin in atrial fibrillation (AF) didn’t include many patients with prosthetic valve implants. In contrast, the RIVER trial enrolled 1005 adults with either persistent or paroxysmal AF and bioprosthetic mitral valves and assigned them to rivaroxaban 20 mg or the vitamin K antagonist.

The presentation will include the noninferiority primary outcome of major clinical events, which is stroke, transient ischemic attack (TIA), major bleeding, death from any cause, valve thrombosis, other systemic embolism, or HF hospitalization over 12 months.

This session also includes ALPHEUS, a trial pitting ticagrelor (Brilinta/Brilique, AstraZeneca) against mainstay clopidogrel in a setting that is mostly uncharted for such comparisons, elective percutaneous coronary intervention (PCI).

About 1900 patients with stable coronary disease were randomly assigned to a month of treatment with either agent on top of continuous aspirin. The primary end point is PCI-related MI or myocardial injury within 48 hours of the procedure.
 

Late-Breaking Science 4. Sunday, November 15, 9:00 AM - 10:00 AM CST

The Self-Assessment Method for Statin Side-effects Or Nocebo (SAMSON) trial may be one of the AHA 2020 frontrunners for early buzz and anticipation. So it’s with some irony that it’s also among the smallest of the LBS studies, at 60 patients, which was nonetheless considered sufficient due to its unusual design.

SAMSON is the latest and perhaps most rigorous attempt to clarify whether symptoms, especially muscle pain or discomfort, attributed to statins by many patients are pharmacologic in origin or, rather, a nocebo effect from negative expectations about statin side effects.

The study patients, all of whom had previously halted statins because of side effects, were assigned to follow three separate regimens, each for month, in a randomized order; they did that four times, for a total of 12 months. The regimens consisted of atorvastatin 20 mg daily, a placebo, or neither.

Patients kept daily logs of any perceived side effects. Parity between side effects experienced on the statin and the placebo would point to a nocebo effect, whereas a significant excess on atorvastatin would suggest they are direct drug effects.

The session also features two randomized trials each on a unique omega-3 fatty acid preparation for either secondary prevention or high-risk primary prevention, in both cases compared with a corn-oil placebo.

The Omega-3 Fatty Acids in Elderly Patients with Myocardial Infarction (OMEMI) trial randomly assigned more than 1000 elderly post-MI patients to take Pikasol (Orkla Care) at 1.8 g EPA and DHA per day or the placebo. It looked for all-cause mortality, nonfatal MI, stroke, revascularization, or hospitalization for new or worsened HF over 24 months.

The STRENGTH trial, with a planned enrollment of about 13,000 high-vascular-risk patients, looked primarily at the effect of daily treatment with Epanova (AstraZeneca), which also contains DHA and EPA, on the composite of CV death, nonfatal MI or stroke, coronary revascularization, and hospitalization for unstable angina. The trial was halted early for low likelihood of benefit, AstraZeneca announced in January of this year.
 

Late-Breaking Science 5. Sunday, November 15, 7:15 PM - 8:30 PM CST

Slated for the session is the primary analysis of the PIONEER 3 trial, conducted in the United States, Europe, and Japan. It compared the BuMA Supreme biodegradable drug-coated stent (SinoMed) with the durable Xience (Abbott Vascular) and Promus (Boston Scientific) drug-eluting stents. The trial followed more than 1600 patients treated for chronic stable angina or acute coronary syndrome (ACS) for the 1-year composite of cardiac death, target-vessel-related MI, and clinically driven target-lesion revascularization.
 

Late-Breaking Science 6. Monday, November 16, 9:00 AM - 10:00 AM CST

The EARLY-AF trial enrolled 303 patients with symptomatic paroxysmal or persistent AF suitable for catheter ablation, assigning them to pulmonary vein isolation (PVI) by cryoablation using the Arctic Front (Medtronic) system or antiarrhythmic drug therapy for rhythm control. The primary end point is time to recurrence of AF, atrial flutter, or atrial tachycardia, whether symptomatic or asymptomatic, as determined by implantable loop recorder. Patients will also be followed for symptoms and arrhythmia burden.

Also in the session, the SEARCH-AF study randomized almost 400 patients undergoing cardiac surgery who were engaged subacutely with one of two commercial portable cardiac rhythm monitoring devices (CardioSTAT, Icentia; or SEEQ, Medtronic) or, alternatively, to receive usual postoperative care

The patients, considered to be at high risk for stroke with no history of AF, were followed for the primary end point of cumulative burden of AF or atrial flutter exceeding 6 minutes or documentation of either arrhythmia by 12-lead ECG within 30 days.

Two other studies in the session look at different approaches to AF screening, one using a handheld ECG monitor in the primary care setting and the other wearable monitors in the form of a patch or wristband. The VITAL-AF presentation is titled “Screening for Atrial Fibrillation in Older Adults at Primary Care Visits Using Single Lead Electrocardiograms.” The other presentation, on the study mSToPS, is called “Three-Year Clinical Outcomes in a Nationwide, Randomized, Pragmatic Clinical Trial of Atrial Fibrillation Screening — Mhealth Screening to Prevent Strokes.”
 

Late-Breaking Science 7. Monday, November 16, 7:00 PM - 8:30 PM CST

In the randomized FIDELIO-DKD trial with more than 5700 patients with type 2 diabetes and associated kidney disease, those assigned to the novel mineralocorticoid receptor antagonist (MRA) finerenone (Bayer) showed an 18% drop in risk for adverse renal events, including death from renal causes (P = .001), over a median of 2.6 years. That primary outcome was previously presented in detail at a nephrology meeting and published in the New England Journal of Medicine in October.

Patients on the MRA showed a similar reduction in a composite CV-event end point, it was also reported at that time. A follow-up presentation at the AHA sessions promises to dive deeper into the trial’s CV outcomes.

In the RAPID-CTCA study, slated next for the session, 1749 patients with suspected or confirmed intermediate-risk ACS were randomly assigned to undergo computed tomographic coronary angiography (CTCA) for guiding treatment decisions or a standard-of-care strategy. It followed patients for the primary end point of death or nonfatal MI over 1 year.

Rilonacept (Arcalyst, Kiniksa/Regeneron) is an interleukin-1α and -1β inhibitor used in several autoinflammatory diseases that went unsuccessfully before regulators for the treatment of gout. The RHAPSODY trial has now explored its use against recurrent pericarditis in a randomized trial that entered 86 patients 12 years and older who had previously experienced at least three episodes.

In top-line results reported to investors in June, patients assigned to receive the drug instead of placebo in weekly injections showed a 96% drop in risk for pericarditis recurrence and “no or minimal pain” on more than 90% of days in the trial. A full presentation is expected during this LBS session.

Also on the schedule is the THALES study, which led the US Food and Drug Administration (FDA) to expand indications for ticagrelor to include stroke prevention in patients with a history of acute ischemic stroke or high-risk TIA based on the trial’s primary results published in July.

In THALES, more than 11,000 patients with mild to moderate acute noncardiogenic ischemic stroke or TIA were randomly assigned within 24 hours to start on daily aspirin with or without ticagrelor given as a 180 mg loading dose followed by 90 mg twice daily for 30 days.

At the end of a month, it was reported, those on dual antiplatelet therapy showed a 17% risk reduction (P = .02) for the primary end point of stroke or death, at the cost of a slight but significant increase in “severe” bleeding (0.5% vs 0.1%; P = .001).

The session is to conclude with two related studies that fell victim in part to the COVID-19 pandemic, both of which explored sotagliflozin (Zynquista, Sanofi/Lexicon), an inhibitor of both sodium-glucose cotransporters 1 and 2 (SGLT1 and SGLT2, respectively) in patients with type 2 diabetes.

SOLOIST-WHF had entered 1222 such patients hospitalized with urgent or worsening HF at 466 centers and randomly assigned them to receive sotagliflozin or placebo; they were followed for the composite of CV death or HF events. SCORED reached an enrollment of 10,584 patients with diabetes and chronic kidney disease at 754 hospitals, following them for the same primary end point.

Lexicon announced in March that the trials would be “closed out early” because of the unavailability of funding “together with uncertainties relating to the COVID-19 pandemic on the trials.” The LBS presentation is expected to include analyses of available data; SOLOIST-WHF launched in summer 2018 and SCORED began in November 2017.
 

Late-Breaking Science 8. Tuesday, November 17, 9:00 AM - 10:00 AM CST

Most of this LBS session is devoted to the AHA COVID-19 Cardiovascular Disease registry, which is looking at the hospital journey, clinical course, and outcomes of patients hospitalized with SARS-CoV-2 infections at centers participating in the organization’s Get With The Guidelines (GWTG) quality-improvement program. As of September, the registry included data from more than 15,000 patients.

Scheduled presentations include a summary of the registry’s design and initial results; an analysis of racial and ethnic variation in therapy and clinical outcomes; an exploration of how body mass index influenced outcomes, including death, use of mechanical ventilation, and cardiovascular end points, in patients with COVID-19; and a deep dive into the relation between CV disease and clinical outcomes in the cohort.

The last of this LBS block’s five talks will cover the randomized Influenza Vaccine to Effectively Stop Cardio Thoracic Events and Decompensated Heart Failure (INVESTED) trial, which compared vaccination with high-dose trivalent influenza vaccine or a standard-dose quadrivalent vaccine in 5388 adults with a history of hospitalization for either MI or HF. Patients were required to have at least one other CV risk factor, such as older age, reduced left ventricular ejection fraction, or diabetes.

INVESTED tracked the patients at 190 centers across an initial pilot flu season and three subsequent flu seasons for the primary end point of death from any cause or cardiopulmonary hospitalization.

The trial is one of at least three that have been looking at the effect of flu vaccination on cardiovascular outcomes; results from the other two — IAMI, with more than 2500 participants, and RCT-IVVE, with an enrollment of 4871 — are planned for presentation in 2021, theheart.org | Medscape Cardiology recently reported.
 

Late-Breaking Science 9. Tuesday, November 17, 12:00 PM - 1:00 PM CST

The conference’s concluding LBS session features three studies that relied on technologic strategies for modifying patient compliance and other care behaviors and one that used human-centered design principles to develop a group-care model aimed improving the management of diabetes, hypertension, and other noncommunicable diseases in economically disadvantaged regions of Kenya.

The EPIC-HF trial tested a strategy for improving HFrEF medication-plan engagement by use of a video and documents delivered to patients several times by email or text prior to their follow-up clinic appointments. The strategy was compared with usual care for its effect on HF-medication optimization over 1 month and 1 year in a total of 306 patients.

Following EPIC-HF on the schedule is the MYROAD trial, looking at the efficacy of discharge instructions provided to patients with acute HF as an audio recording that they and their physicians could replay on demand, the idea being to increase adherence to the instructions. The trial’s 1073 patients were assigned to the novel strategy or usual care and followed for HF rehospitalization within 30 days.

MYROAD is to be followed by a presentation entitled “Digital Care Transformation: One-Year Report of >5,000 Patients Enrolled in a Remote Algorithm-Based CV Risk Management Program to Achieve Optimal Lipid and Hypertension Control.”

Rounding out the LBS session: the Bridging Income Generation With Group Integrated Care (BIGPIC) program, a pilot study that developed and executed “a healthcare delivery model targeting health behaviors, medication adherence, and financial barriers to accessing healthcare” in four rural counties in Kenya.

The model features locally developed plans, tailored for regional needs, that are said to “combine the benefits of microfinance with the peer support available through group medical care to enhance management of hypertension and diabetes.” The microfinance component is aimed at improving household economies to alleviate the financial burden of care and clinic attendance, and for the health effects of improved quality of life.

The study randomized 2890 adults with diabetes or prediabetes to one of four groups: usual care plus microfinance group support, group medical visits only or combined with microfinance group support, or usual care only. They were followed for changes in systolic blood pressure and CV-risk score over 12 months.

Lloyd-Jones and Fauci declared no conflicts.

This article first appeared on Medscape.com.

Patients who take the vitamin K antagonist warfarin to prevent thromboembolic events are significantly more likely to require knee or hip replacement surgery – a surrogate endpoint for end-stage osteoarthritis – than are patients who take direct oral anticoagulants (DOACs), results of a U.K.-based study showed.

In a nested case-control study, warfarin use was associated with a 1.5-fold risk for knee and hip replacement, compared with use of DOACs.

The findings provide additional evidence for the role of vitamin K and vitamin K–dependent proteins for limiting osteoarthritis progression, said lead author Priyanka Ballal, MD, a rheumatology fellow at Boston University.

“Given the prevalence and impact of osteoarthritis, our data, along with the existing literature, support the need for a well-powered, randomized, controlled trial for evaluating vitamin K supplementation in osteoarthritis. Our study also raises the consideration of using DOACs over warfarin when indicated in people with or at risk of osteoarthritis,“ she said in a plenary session at the virtual annual meeting of the American College of Rheumatology.

Warfarin targets vitamin K for its role in coagulation, but vitamin K is also an essential co-factor for vitamin K-dependent proteins in bone and cartilage, Dr. Ballal said,

Inadequate vitamin K levels are associated with abnormal joint tissue mineralization, and with increased incidence and prevalence of osteoarthritis. In a randomized, controlled trial, vitamin K supplementation was associated with trends toward less osteoarthritis progression among patients with vitamin K deficiency, she said.

To see whether warfarin therapy has biologic effects similar to that seen in patients with vitamin K deficiency, Dr. Ballal and colleagues conducted a nested, case-control study using data from The Health Improvement Network (THIN), an electronic medical record database of patients enrolled with general practitioners in the United Kingdom.

The sample included adults aged 40-80 years with atrial fibrillation who had received one or more prescriptions for warfarin or a DOAC beginning in 2009, a year after DOACs were first marketed in the United Kingdom, and within 1 year of the index date (date of joint replacement surgery). The researchers excluded patients with knee or hip replacements before 2014, severe comorbidities that would limit joint replacement, or who had used either warfarin or a DOAC prior to study entry. Each case was matched by age, gender, and index date with up to four control patients (those who did not have surgery).

A total of 913 cases and 3,652 controls were included. The groups had similar characteristics (sex, age, cancer, renal disease, chronic lung disease, hypertension, and incidence of venous thromboembolism [VTE]), except for somewhat higher rates of diabetes and heart failure among controls, and a higher rate of obesity among cases.

The investigators first looked at warfarin use among all knee and/or hip replacement cases and controls and calculated an odds ratio of 1.57 (95% confidence interval [CI], 1.30-1.89) for knee and hip replacement with warfarin after adjustment for body mass index, factors influencing choice of anticoagulant, comorbidities, other medications, general practitioner visits, and hospitalizations.

The association between warfarin and joint replacement held up in an analysis restricted to knee replacement only, with an adjusted OR of 1.48 (95% CI, 1.16-1.89).

There was also a clear association between duration of warfarin use and risk of knee and hip replacement.

“This abstract suggests the role of adequate vitamin K may be important in decreasing progression of osteoarthritis, which would then favor patients with OA who are on warfarin to consider changing to a DOAC; however, further studies are needed to confirm this finding and consider its impact on VTE and wound healing postop,” said Minna Kohler, MD, director of the rheumatology musculoskeletal ultrasound program at Massachusetts General Hospital in Boston. Dr. Kohler, who was not involved in the study, replied to an email request for comment.

The study was supported by grants from the National Institutes of Health. Dr. Ballal and Dr. Kohler reported having no conflicts of interest to disclose.

SOURCE: Ballal P et al. Arthritis Rheumatol. 2020;72(suppl 10): Abstract 0934.

Patients who take the vitamin K antagonist warfarin to prevent thromboembolic events are significantly more likely to require knee or hip replacement surgery – a surrogate endpoint for end-stage osteoarthritis – than are patients who take direct oral anticoagulants (DOACs), results of a U.K.-based study showed.

In a nested case-control study, warfarin use was associated with a 1.5-fold risk for knee and hip replacement, compared with use of DOACs.

The findings provide additional evidence for the role of vitamin K and vitamin K–dependent proteins for limiting osteoarthritis progression, said lead author Priyanka Ballal, MD, a rheumatology fellow at Boston University.

“Given the prevalence and impact of osteoarthritis, our data, along with the existing literature, support the need for a well-powered, randomized, controlled trial for evaluating vitamin K supplementation in osteoarthritis. Our study also raises the consideration of using DOACs over warfarin when indicated in people with or at risk of osteoarthritis,“ she said in a plenary session at the virtual annual meeting of the American College of Rheumatology.

Warfarin targets vitamin K for its role in coagulation, but vitamin K is also an essential co-factor for vitamin K-dependent proteins in bone and cartilage, Dr. Ballal said,

Inadequate vitamin K levels are associated with abnormal joint tissue mineralization, and with increased incidence and prevalence of osteoarthritis. In a randomized, controlled trial, vitamin K supplementation was associated with trends toward less osteoarthritis progression among patients with vitamin K deficiency, she said.

To see whether warfarin therapy has biologic effects similar to that seen in patients with vitamin K deficiency, Dr. Ballal and colleagues conducted a nested, case-control study using data from The Health Improvement Network (THIN), an electronic medical record database of patients enrolled with general practitioners in the United Kingdom.

The sample included adults aged 40-80 years with atrial fibrillation who had received one or more prescriptions for warfarin or a DOAC beginning in 2009, a year after DOACs were first marketed in the United Kingdom, and within 1 year of the index date (date of joint replacement surgery). The researchers excluded patients with knee or hip replacements before 2014, severe comorbidities that would limit joint replacement, or who had used either warfarin or a DOAC prior to study entry. Each case was matched by age, gender, and index date with up to four control patients (those who did not have surgery).

A total of 913 cases and 3,652 controls were included. The groups had similar characteristics (sex, age, cancer, renal disease, chronic lung disease, hypertension, and incidence of venous thromboembolism [VTE]), except for somewhat higher rates of diabetes and heart failure among controls, and a higher rate of obesity among cases.

The investigators first looked at warfarin use among all knee and/or hip replacement cases and controls and calculated an odds ratio of 1.57 (95% confidence interval [CI], 1.30-1.89) for knee and hip replacement with warfarin after adjustment for body mass index, factors influencing choice of anticoagulant, comorbidities, other medications, general practitioner visits, and hospitalizations.

The association between warfarin and joint replacement held up in an analysis restricted to knee replacement only, with an adjusted OR of 1.48 (95% CI, 1.16-1.89).

There was also a clear association between duration of warfarin use and risk of knee and hip replacement.

“This abstract suggests the role of adequate vitamin K may be important in decreasing progression of osteoarthritis, which would then favor patients with OA who are on warfarin to consider changing to a DOAC; however, further studies are needed to confirm this finding and consider its impact on VTE and wound healing postop,” said Minna Kohler, MD, director of the rheumatology musculoskeletal ultrasound program at Massachusetts General Hospital in Boston. Dr. Kohler, who was not involved in the study, replied to an email request for comment.

The study was supported by grants from the National Institutes of Health. Dr. Ballal and Dr. Kohler reported having no conflicts of interest to disclose.

SOURCE: Ballal P et al. Arthritis Rheumatol. 2020;72(suppl 10): Abstract 0934.

Patients who take the vitamin K antagonist warfarin to prevent thromboembolic events are significantly more likely to require knee or hip replacement surgery – a surrogate endpoint for end-stage osteoarthritis – than are patients who take direct oral anticoagulants (DOACs), results of a U.K.-based study showed.

In a nested case-control study, warfarin use was associated with a 1.5-fold risk for knee and hip replacement, compared with use of DOACs.

The findings provide additional evidence for the role of vitamin K and vitamin K–dependent proteins for limiting osteoarthritis progression, said lead author Priyanka Ballal, MD, a rheumatology fellow at Boston University.

“Given the prevalence and impact of osteoarthritis, our data, along with the existing literature, support the need for a well-powered, randomized, controlled trial for evaluating vitamin K supplementation in osteoarthritis. Our study also raises the consideration of using DOACs over warfarin when indicated in people with or at risk of osteoarthritis,“ she said in a plenary session at the virtual annual meeting of the American College of Rheumatology.

Warfarin targets vitamin K for its role in coagulation, but vitamin K is also an essential co-factor for vitamin K-dependent proteins in bone and cartilage, Dr. Ballal said,

Inadequate vitamin K levels are associated with abnormal joint tissue mineralization, and with increased incidence and prevalence of osteoarthritis. In a randomized, controlled trial, vitamin K supplementation was associated with trends toward less osteoarthritis progression among patients with vitamin K deficiency, she said.

To see whether warfarin therapy has biologic effects similar to that seen in patients with vitamin K deficiency, Dr. Ballal and colleagues conducted a nested, case-control study using data from The Health Improvement Network (THIN), an electronic medical record database of patients enrolled with general practitioners in the United Kingdom.

The sample included adults aged 40-80 years with atrial fibrillation who had received one or more prescriptions for warfarin or a DOAC beginning in 2009, a year after DOACs were first marketed in the United Kingdom, and within 1 year of the index date (date of joint replacement surgery). The researchers excluded patients with knee or hip replacements before 2014, severe comorbidities that would limit joint replacement, or who had used either warfarin or a DOAC prior to study entry. Each case was matched by age, gender, and index date with up to four control patients (those who did not have surgery).

A total of 913 cases and 3,652 controls were included. The groups had similar characteristics (sex, age, cancer, renal disease, chronic lung disease, hypertension, and incidence of venous thromboembolism [VTE]), except for somewhat higher rates of diabetes and heart failure among controls, and a higher rate of obesity among cases.

The investigators first looked at warfarin use among all knee and/or hip replacement cases and controls and calculated an odds ratio of 1.57 (95% confidence interval [CI], 1.30-1.89) for knee and hip replacement with warfarin after adjustment for body mass index, factors influencing choice of anticoagulant, comorbidities, other medications, general practitioner visits, and hospitalizations.

The association between warfarin and joint replacement held up in an analysis restricted to knee replacement only, with an adjusted OR of 1.48 (95% CI, 1.16-1.89).

There was also a clear association between duration of warfarin use and risk of knee and hip replacement.

“This abstract suggests the role of adequate vitamin K may be important in decreasing progression of osteoarthritis, which would then favor patients with OA who are on warfarin to consider changing to a DOAC; however, further studies are needed to confirm this finding and consider its impact on VTE and wound healing postop,” said Minna Kohler, MD, director of the rheumatology musculoskeletal ultrasound program at Massachusetts General Hospital in Boston. Dr. Kohler, who was not involved in the study, replied to an email request for comment.

The study was supported by grants from the National Institutes of Health. Dr. Ballal and Dr. Kohler reported having no conflicts of interest to disclose.

SOURCE: Ballal P et al. Arthritis Rheumatol. 2020;72(suppl 10): Abstract 0934.

A smartphone app that combines passively collected physiologic data from wearable devices, such as fitness trackers, and self-reported symptoms can discriminate between COVID-19–positive and –negative individuals among those who report symptoms, new data suggest.

LDProd/Getty Images

After analyzing data from more than 30,000 participants, researchers from the Digital Engagement and Tracking for Early Control and Treatment (DETECT) study concluded that adding individual changes in sensor data improves models based on symptoms alone for differentiating symptomatic persons who are COVID-19 positive and symptomatic persons who are COVID-19 negative.

The combination can potentially identify infection clusters before wider community spread occurs, Giorgio Quer, PhD, and colleagues report in an article published online Oct. 29 in Nature Medicine. DETECT investigators note that marrying participant-reported symptoms with personal sensor data, such as deviation from normal sleep duration and resting heart rate, resulted in an area under the curve (AUC) of 0.80 (interquartile range [IQR], 0.73-0.86) for differentiating between symptomatic individuals who were positive and those who were negative for COVID-19.

“By better characterizing each individual’s unique baseline, you can then identify changes that may indicate that someone has a viral illness,” said Dr. Quer, director of artificial intelligence at Scripps Research Translational Institute in La Jolla, Calif. “In previous research, we found that the proportion of individuals with elevated resting heart rate and sleep duration compared with their normal could significantly improve real-time detection of influenza-like illness rates at the state level,” he said in an interview.

Thus, continuous passively captured data may be a useful adjunct to bricks-and-mortar site testing, which is generally a one-off or infrequent sampling assay and is not always easily accessible, he added. Furthermore, traditional screening with temperature and symptom reporting is inadequate. An elevation in temperature is not as common as frequently believed for people who test positive for COVID-19, Dr. Quer continued. “Early identification via sensor variables of those who are presymptomatic or even asymptomatic would be especially valuable, as people may potentially be infectious during this period, and early detection is the ultimate goal,” Dr. Quer said.

According to his group, adding these physiologic changes from baseline values significantly outperformed detection (P < .01) using a British model described in an earlier study by by Cristina Menni, PhD, and associates. That method, in which symptoms were considered alone, yielded an AUC of 0.71 (IQR, 0.63-0.79).

According to Dr. Quer, one in five Americans currently wear an electronic device. “If we could enroll even a small percentage of these individuals, we’d be able to potentially identify clusters before they have the opportunity to spread,” he said.
 

DETECT study details

During the period March 15 to June 7, 2020, the study enrolled 30,529 participants from all 50 states. They ranged in age from younger than 35 years (23.1%) to older than 65 years (12.8%); the majority (63.5%) were aged 35-65 years, and 62% were women. Sensor devices in use by the cohort included Fitbit activity trackers (78.4%) and Apple HealthKit (31.2%).

Participants downloaded an app called MyDataHelps, which collects smartwatch and activity tracker information, including self-reported symptoms and diagnostic testing results. The app also monitors changes from baseline in resting heart rate, sleep duration, and physical activity, as measured by steps.

Overall, 3,811 participants reported having at least one symptom of some kind (e.g., fatigue, cough, dyspnea, loss of taste or smell). Of these, 54 reported testing positive for COVID-19, and 279 reported testing negative.

Sleep and activity were significantly different for the positive and negative groups, with an AUC of 0.68 (IQR, 0.57-0.79) for the sleep metric and 0.69 (IQR, 0.61-0.77) for the activity metric, suggesting that these parameters were more affected in COVID-19–positive participants.

When the investigators combined resting heart rate, sleep, and activity into a single metric, predictive performance improved to an AUC of 0.72 (IQR, 0.64-0.80).

The next step, Dr. Quer said, is to include an alert to notify users of possible infection.
 

Alerting users to possible COVID-19 infection

In a similar study, an alert feature was already incorporated. The study, led by Michael P. Snyder, PhD, director of the Center for Genomics and Personalized Medicine at Stanford (Calif.) University, will soon be published online in Nature Biomedical Engineering. In that study, presymptomatic detection of COVID-19 was achieved in more than 80% of participants using resting heart rate.

“The median is 4 days prior to symptom formation,” Dr. Snyder said in an interview. “We have an alarm system to notify people when their heart rate is elevated. So a positive signal from a smartwatch can be used to follow up by polymerase chain reaction [testing].”

Dr. Snyder said these approaches offer a roadmap to containing widespread infections. “Public health authorities need to be open to these technologies and begin incorporating them into their tracking,” he said. “Right now, people do temperature checks, which are of limited value. Resting heart rate is much better information.”

Although the DETECT researchers have not yet received feedback on their results, they believe public health authorities could recommend the use of such apps. “These are devices that people routinely wear for tracking their fitness and sleep, so it would be relatively easy to use the data for viral illness tracking,” said co–lead author Jennifer Radin, PhD, an epidemiologist at Scripps. “Testing resources are still limited and don’t allow for routine serial testing of individuals who may be asymptomatic or presymptomatic. Wearables can offer a different way to routinely monitor and screen people for changes in their data that may indicate COVID-19.”

The marshaling of data through consumer digital platforms to fight the coronavirus is gaining ground. New York State and New Jersey are already embracing smartphone apps to alert individuals to possible exposure to the virus.

More than 710,000 New Yorkers have downloaded the COVID NY Alert app, launched in October to help protect individuals and communities from COVID-19 by sending alerts without compromising privacy or personal information. “Upon receiving a notification about a potential exposure, users are then able to self-quarantine, get tested, and reduce the potential exposure risk to family, friends, coworkers, and others,” Jonah Bruno, a spokesperson for the New York State Department of Health, said in an interview.

And recently the Mayo Clinic and Safe Health Systems launched a platform to store COVID-19 testing and vaccination data.

Both the Scripps and Stanford platforms are part of a global technologic response to the COVID-19 pandemic. Prospective studies, led by device manufacturers and academic institutions, allow individuals to voluntarily share sensor and clinical data to address the crisis. Similar approaches have been used to track COVID-19 in large populations in Germany via the Corona Data Donation app.

The study by Dr. Quer and colleagues was funded by a grant from the National Center for Advancing Translational Sciences at the National Institutes of Health. One coauthor reported grants from Janssen and personal fees from Otsuka and Livongo outside of the submitted work. The other authors have disclosed no relevant financial relationships. Dr. Snyder has ties to Personalis, Qbio, January, SensOmics, Protos, Mirvie, and Oralome.
 

A version of this article originally appeared on Medscape.com.

A smartphone app that combines passively collected physiologic data from wearable devices, such as fitness trackers, and self-reported symptoms can discriminate between COVID-19–positive and –negative individuals among those who report symptoms, new data suggest.

LDProd/Getty Images

After analyzing data from more than 30,000 participants, researchers from the Digital Engagement and Tracking for Early Control and Treatment (DETECT) study concluded that adding individual changes in sensor data improves models based on symptoms alone for differentiating symptomatic persons who are COVID-19 positive and symptomatic persons who are COVID-19 negative.

The combination can potentially identify infection clusters before wider community spread occurs, Giorgio Quer, PhD, and colleagues report in an article published online Oct. 29 in Nature Medicine. DETECT investigators note that marrying participant-reported symptoms with personal sensor data, such as deviation from normal sleep duration and resting heart rate, resulted in an area under the curve (AUC) of 0.80 (interquartile range [IQR], 0.73-0.86) for differentiating between symptomatic individuals who were positive and those who were negative for COVID-19.

“By better characterizing each individual’s unique baseline, you can then identify changes that may indicate that someone has a viral illness,” said Dr. Quer, director of artificial intelligence at Scripps Research Translational Institute in La Jolla, Calif. “In previous research, we found that the proportion of individuals with elevated resting heart rate and sleep duration compared with their normal could significantly improve real-time detection of influenza-like illness rates at the state level,” he said in an interview.

Thus, continuous passively captured data may be a useful adjunct to bricks-and-mortar site testing, which is generally a one-off or infrequent sampling assay and is not always easily accessible, he added. Furthermore, traditional screening with temperature and symptom reporting is inadequate. An elevation in temperature is not as common as frequently believed for people who test positive for COVID-19, Dr. Quer continued. “Early identification via sensor variables of those who are presymptomatic or even asymptomatic would be especially valuable, as people may potentially be infectious during this period, and early detection is the ultimate goal,” Dr. Quer said.

According to his group, adding these physiologic changes from baseline values significantly outperformed detection (P < .01) using a British model described in an earlier study by by Cristina Menni, PhD, and associates. That method, in which symptoms were considered alone, yielded an AUC of 0.71 (IQR, 0.63-0.79).

According to Dr. Quer, one in five Americans currently wear an electronic device. “If we could enroll even a small percentage of these individuals, we’d be able to potentially identify clusters before they have the opportunity to spread,” he said.
 

DETECT study details

During the period March 15 to June 7, 2020, the study enrolled 30,529 participants from all 50 states. They ranged in age from younger than 35 years (23.1%) to older than 65 years (12.8%); the majority (63.5%) were aged 35-65 years, and 62% were women. Sensor devices in use by the cohort included Fitbit activity trackers (78.4%) and Apple HealthKit (31.2%).

Participants downloaded an app called MyDataHelps, which collects smartwatch and activity tracker information, including self-reported symptoms and diagnostic testing results. The app also monitors changes from baseline in resting heart rate, sleep duration, and physical activity, as measured by steps.

Overall, 3,811 participants reported having at least one symptom of some kind (e.g., fatigue, cough, dyspnea, loss of taste or smell). Of these, 54 reported testing positive for COVID-19, and 279 reported testing negative.

Sleep and activity were significantly different for the positive and negative groups, with an AUC of 0.68 (IQR, 0.57-0.79) for the sleep metric and 0.69 (IQR, 0.61-0.77) for the activity metric, suggesting that these parameters were more affected in COVID-19–positive participants.

When the investigators combined resting heart rate, sleep, and activity into a single metric, predictive performance improved to an AUC of 0.72 (IQR, 0.64-0.80).

The next step, Dr. Quer said, is to include an alert to notify users of possible infection.
 

Alerting users to possible COVID-19 infection

In a similar study, an alert feature was already incorporated. The study, led by Michael P. Snyder, PhD, director of the Center for Genomics and Personalized Medicine at Stanford (Calif.) University, will soon be published online in Nature Biomedical Engineering. In that study, presymptomatic detection of COVID-19 was achieved in more than 80% of participants using resting heart rate.

“The median is 4 days prior to symptom formation,” Dr. Snyder said in an interview. “We have an alarm system to notify people when their heart rate is elevated. So a positive signal from a smartwatch can be used to follow up by polymerase chain reaction [testing].”

Dr. Snyder said these approaches offer a roadmap to containing widespread infections. “Public health authorities need to be open to these technologies and begin incorporating them into their tracking,” he said. “Right now, people do temperature checks, which are of limited value. Resting heart rate is much better information.”

Although the DETECT researchers have not yet received feedback on their results, they believe public health authorities could recommend the use of such apps. “These are devices that people routinely wear for tracking their fitness and sleep, so it would be relatively easy to use the data for viral illness tracking,” said co–lead author Jennifer Radin, PhD, an epidemiologist at Scripps. “Testing resources are still limited and don’t allow for routine serial testing of individuals who may be asymptomatic or presymptomatic. Wearables can offer a different way to routinely monitor and screen people for changes in their data that may indicate COVID-19.”

The marshaling of data through consumer digital platforms to fight the coronavirus is gaining ground. New York State and New Jersey are already embracing smartphone apps to alert individuals to possible exposure to the virus.

More than 710,000 New Yorkers have downloaded the COVID NY Alert app, launched in October to help protect individuals and communities from COVID-19 by sending alerts without compromising privacy or personal information. “Upon receiving a notification about a potential exposure, users are then able to self-quarantine, get tested, and reduce the potential exposure risk to family, friends, coworkers, and others,” Jonah Bruno, a spokesperson for the New York State Department of Health, said in an interview.

And recently the Mayo Clinic and Safe Health Systems launched a platform to store COVID-19 testing and vaccination data.

Both the Scripps and Stanford platforms are part of a global technologic response to the COVID-19 pandemic. Prospective studies, led by device manufacturers and academic institutions, allow individuals to voluntarily share sensor and clinical data to address the crisis. Similar approaches have been used to track COVID-19 in large populations in Germany via the Corona Data Donation app.

The study by Dr. Quer and colleagues was funded by a grant from the National Center for Advancing Translational Sciences at the National Institutes of Health. One coauthor reported grants from Janssen and personal fees from Otsuka and Livongo outside of the submitted work. The other authors have disclosed no relevant financial relationships. Dr. Snyder has ties to Personalis, Qbio, January, SensOmics, Protos, Mirvie, and Oralome.
 

A version of this article originally appeared on Medscape.com.

A smartphone app that combines passively collected physiologic data from wearable devices, such as fitness trackers, and self-reported symptoms can discriminate between COVID-19–positive and –negative individuals among those who report symptoms, new data suggest.

LDProd/Getty Images

After analyzing data from more than 30,000 participants, researchers from the Digital Engagement and Tracking for Early Control and Treatment (DETECT) study concluded that adding individual changes in sensor data improves models based on symptoms alone for differentiating symptomatic persons who are COVID-19 positive and symptomatic persons who are COVID-19 negative.

The combination can potentially identify infection clusters before wider community spread occurs, Giorgio Quer, PhD, and colleagues report in an article published online Oct. 29 in Nature Medicine. DETECT investigators note that marrying participant-reported symptoms with personal sensor data, such as deviation from normal sleep duration and resting heart rate, resulted in an area under the curve (AUC) of 0.80 (interquartile range [IQR], 0.73-0.86) for differentiating between symptomatic individuals who were positive and those who were negative for COVID-19.

“By better characterizing each individual’s unique baseline, you can then identify changes that may indicate that someone has a viral illness,” said Dr. Quer, director of artificial intelligence at Scripps Research Translational Institute in La Jolla, Calif. “In previous research, we found that the proportion of individuals with elevated resting heart rate and sleep duration compared with their normal could significantly improve real-time detection of influenza-like illness rates at the state level,” he said in an interview.

Thus, continuous passively captured data may be a useful adjunct to bricks-and-mortar site testing, which is generally a one-off or infrequent sampling assay and is not always easily accessible, he added. Furthermore, traditional screening with temperature and symptom reporting is inadequate. An elevation in temperature is not as common as frequently believed for people who test positive for COVID-19, Dr. Quer continued. “Early identification via sensor variables of those who are presymptomatic or even asymptomatic would be especially valuable, as people may potentially be infectious during this period, and early detection is the ultimate goal,” Dr. Quer said.

According to his group, adding these physiologic changes from baseline values significantly outperformed detection (P < .01) using a British model described in an earlier study by by Cristina Menni, PhD, and associates. That method, in which symptoms were considered alone, yielded an AUC of 0.71 (IQR, 0.63-0.79).

According to Dr. Quer, one in five Americans currently wear an electronic device. “If we could enroll even a small percentage of these individuals, we’d be able to potentially identify clusters before they have the opportunity to spread,” he said.
 

DETECT study details

During the period March 15 to June 7, 2020, the study enrolled 30,529 participants from all 50 states. They ranged in age from younger than 35 years (23.1%) to older than 65 years (12.8%); the majority (63.5%) were aged 35-65 years, and 62% were women. Sensor devices in use by the cohort included Fitbit activity trackers (78.4%) and Apple HealthKit (31.2%).

Participants downloaded an app called MyDataHelps, which collects smartwatch and activity tracker information, including self-reported symptoms and diagnostic testing results. The app also monitors changes from baseline in resting heart rate, sleep duration, and physical activity, as measured by steps.

Overall, 3,811 participants reported having at least one symptom of some kind (e.g., fatigue, cough, dyspnea, loss of taste or smell). Of these, 54 reported testing positive for COVID-19, and 279 reported testing negative.

Sleep and activity were significantly different for the positive and negative groups, with an AUC of 0.68 (IQR, 0.57-0.79) for the sleep metric and 0.69 (IQR, 0.61-0.77) for the activity metric, suggesting that these parameters were more affected in COVID-19–positive participants.

When the investigators combined resting heart rate, sleep, and activity into a single metric, predictive performance improved to an AUC of 0.72 (IQR, 0.64-0.80).

The next step, Dr. Quer said, is to include an alert to notify users of possible infection.
 

Alerting users to possible COVID-19 infection

In a similar study, an alert feature was already incorporated. The study, led by Michael P. Snyder, PhD, director of the Center for Genomics and Personalized Medicine at Stanford (Calif.) University, will soon be published online in Nature Biomedical Engineering. In that study, presymptomatic detection of COVID-19 was achieved in more than 80% of participants using resting heart rate.

“The median is 4 days prior to symptom formation,” Dr. Snyder said in an interview. “We have an alarm system to notify people when their heart rate is elevated. So a positive signal from a smartwatch can be used to follow up by polymerase chain reaction [testing].”

Dr. Snyder said these approaches offer a roadmap to containing widespread infections. “Public health authorities need to be open to these technologies and begin incorporating them into their tracking,” he said. “Right now, people do temperature checks, which are of limited value. Resting heart rate is much better information.”

Although the DETECT researchers have not yet received feedback on their results, they believe public health authorities could recommend the use of such apps. “These are devices that people routinely wear for tracking their fitness and sleep, so it would be relatively easy to use the data for viral illness tracking,” said co–lead author Jennifer Radin, PhD, an epidemiologist at Scripps. “Testing resources are still limited and don’t allow for routine serial testing of individuals who may be asymptomatic or presymptomatic. Wearables can offer a different way to routinely monitor and screen people for changes in their data that may indicate COVID-19.”

The marshaling of data through consumer digital platforms to fight the coronavirus is gaining ground. New York State and New Jersey are already embracing smartphone apps to alert individuals to possible exposure to the virus.

More than 710,000 New Yorkers have downloaded the COVID NY Alert app, launched in October to help protect individuals and communities from COVID-19 by sending alerts without compromising privacy or personal information. “Upon receiving a notification about a potential exposure, users are then able to self-quarantine, get tested, and reduce the potential exposure risk to family, friends, coworkers, and others,” Jonah Bruno, a spokesperson for the New York State Department of Health, said in an interview.

And recently the Mayo Clinic and Safe Health Systems launched a platform to store COVID-19 testing and vaccination data.

Both the Scripps and Stanford platforms are part of a global technologic response to the COVID-19 pandemic. Prospective studies, led by device manufacturers and academic institutions, allow individuals to voluntarily share sensor and clinical data to address the crisis. Similar approaches have been used to track COVID-19 in large populations in Germany via the Corona Data Donation app.

The study by Dr. Quer and colleagues was funded by a grant from the National Center for Advancing Translational Sciences at the National Institutes of Health. One coauthor reported grants from Janssen and personal fees from Otsuka and Livongo outside of the submitted work. The other authors have disclosed no relevant financial relationships. Dr. Snyder has ties to Personalis, Qbio, January, SensOmics, Protos, Mirvie, and Oralome.
 

A version of this article originally appeared on Medscape.com.

The American College of Cardiology (ACC) has released a new Expert Consensus Decision Pathway (ECDP) on the management of conduction disturbances after transcatheter aortic valve replacement (TAVR).

The document provides guidance to clinicians in identifying and managing this common complication of TAVR, covering the pre-TAVR, periprocedural and post-TAVR periods.

“Conduction disturbances after TAVR are common and there is currently heterogeneity in how they’re managed, ranging from a casual observational approach to invasive electrophysiological studies and preemptive pacemaker implantation,” said writing committee chair Scott Lilly, MD, PhD, from the Ohio State Wexner Medical Center in Columbus.

“We felt this kind of collaborative effort to review what little research there is on this topic and come to [an] expert consensus was long overdue,” he added.

The document was published online Oct. 21 in the Journal of the American College of Cardiology.

Dr. Lilly stressed in an interview that this effort is an ECDP and not a guideline “because there is not data out there to solidly stand on and say, ‘This is the way we should do things.’ “

His hope is that this document will generate more discussion on this topic and spur some (probably National Institutes of Health–sponsored) clinical trials to better guide practice.
 

Not uncommon and not decreasing

Complete heart block requiring permanent pacemaker (PPM) implantation is seen in about 15% of patients within 30 days after TAVR. While this is a clear indication for PPM, there is no consensus on the management of less severe conduction disturbances such as new bundle branch or transient complete atrioventricular (AV) heart block.

Unlike the rates of bleeding, vascular injury, and stroke, which have decreased over time, the rates of in-hospital PPM implantation after TAVR have not changed significantly since commercialization in 2012. This is a concern because TAVR is increasingly used in younger, lower-risk patients.

“The pacemaker rate really hasn’t improved at a clip we would like to see if it was going to be a durable technology,” Dr. Lilly said.

Consensus regarding a reasonable strategy to manage cardiac conduction disturbances after TAVR has been elusive. This is a result of several things: a dearth of adequately powered, randomized controlled trials; the often transient nature of the conduction disturbances; evolving technologies; and the interplay of cardiology subspecialties involved.

The 2013 European Society of Cardiology guidelines address pacing post-TAVR, but do not provide in-depth discussion on the topic. This is the first effort sponsored by a cardiovascular society in the United States to review the existing data and experience and propose evidence-based expert guidance.
 

Pre-TAVR assessment

Pre-TAVR assessment should consider the patient’s risk for postprocedure conduction disturbances, the authors said. Since bradyarrythmias and aortic stenosis may present similarly (fatigue, lightheadedness, and syncope being hallmarks of both), a careful history is needed to determine if bradyarrhythmia is present.

An electrocardiogram (ECG) or ambulatory rhythm monitoring may identify baseline conduction abnormalities and help predict the need for post-TAVR PPM.

“In this section, we underscored some of the literature that has raised awareness about the presence of preexisting arrhythmias in TAVR patients and suggest that monitoring in selected patients before the procedure is reasonable, particularly those presenting with syncope or lightheadedness,” said Dr. Lilly.
 

Intraprocedural management

On the day of the procedure, patients determined to have elevated risk for complete AV heart block require careful perioperative ECG and hemodynamic monitoring. Regardless of preexisting risk, said the authors that all patients should be monitored on a telemetry unit during the procedure with ability to do emergency pacing if necessary.

“In the periprocedural section, we address the role of electrophysiological studies for identifying patients at high-risk of subsequent heart block,” said Dr. Lilly. “That’s a practice that’s occurring at a number of centers, but the data out there is insufficient to establish it as a pacemaker indication. Routine EP testing for patients deemed at risk for conduction disturbances after TAVR is not guideline-based and more research is needed.”

The document also outlines the effects of medications and anesthesia on postprocedure conduction abnormalities.
 

Post-TAVR management

The authors define post-TAVR management as continuing through 30-days after discharge.

The ECDP carefully outlines which patients can be discharged without monitoring and those for whom outpatient monitoring can be considered.

“If I’m going to pick one thing from this section, it’s the monitoring piece. A lot of patients that have a conduction disturbance right after TAVR – but you’re not sure if it’s going to progress and require a pacemaker – might stay in the hospital for an extended time waiting to see if the heart holds up,” reported Dr. Lilly.

“But a number of centers are now discharging people at 1 or 2 days, which begs the question: What do you do with these folks? Our group has published data showing that 30-day monitoring in select patients is a safe approach,” said Dr. Lilly.

There are shortcomings, however, in existing data, and recommendations will likely change as more data are collected, he explained.

As well, there remains uncertainty in how conduction block should be managed after TAVR, and clinical judgment is “foundational” in this, wrote the authors.

“This document is meant to help programs deal with these situations right now, acknowledging full and well, that really good randomized clinical data is not available,” said Dr. Lilly.

Dr. Lilly has disclosed no relevant financial relationships. The work of the writing committee was supported exclusively by the American College of Cardiology without commercial support.
 

A version of this article originally appeared on Medscape.com.

The American College of Cardiology (ACC) has released a new Expert Consensus Decision Pathway (ECDP) on the management of conduction disturbances after transcatheter aortic valve replacement (TAVR).

The document provides guidance to clinicians in identifying and managing this common complication of TAVR, covering the pre-TAVR, periprocedural and post-TAVR periods.

“Conduction disturbances after TAVR are common and there is currently heterogeneity in how they’re managed, ranging from a casual observational approach to invasive electrophysiological studies and preemptive pacemaker implantation,” said writing committee chair Scott Lilly, MD, PhD, from the Ohio State Wexner Medical Center in Columbus.

“We felt this kind of collaborative effort to review what little research there is on this topic and come to [an] expert consensus was long overdue,” he added.

The document was published online Oct. 21 in the Journal of the American College of Cardiology.

Dr. Lilly stressed in an interview that this effort is an ECDP and not a guideline “because there is not data out there to solidly stand on and say, ‘This is the way we should do things.’ “

His hope is that this document will generate more discussion on this topic and spur some (probably National Institutes of Health–sponsored) clinical trials to better guide practice.
 

Not uncommon and not decreasing

Complete heart block requiring permanent pacemaker (PPM) implantation is seen in about 15% of patients within 30 days after TAVR. While this is a clear indication for PPM, there is no consensus on the management of less severe conduction disturbances such as new bundle branch or transient complete atrioventricular (AV) heart block.

Unlike the rates of bleeding, vascular injury, and stroke, which have decreased over time, the rates of in-hospital PPM implantation after TAVR have not changed significantly since commercialization in 2012. This is a concern because TAVR is increasingly used in younger, lower-risk patients.

“The pacemaker rate really hasn’t improved at a clip we would like to see if it was going to be a durable technology,” Dr. Lilly said.

Consensus regarding a reasonable strategy to manage cardiac conduction disturbances after TAVR has been elusive. This is a result of several things: a dearth of adequately powered, randomized controlled trials; the often transient nature of the conduction disturbances; evolving technologies; and the interplay of cardiology subspecialties involved.

The 2013 European Society of Cardiology guidelines address pacing post-TAVR, but do not provide in-depth discussion on the topic. This is the first effort sponsored by a cardiovascular society in the United States to review the existing data and experience and propose evidence-based expert guidance.
 

Pre-TAVR assessment

Pre-TAVR assessment should consider the patient’s risk for postprocedure conduction disturbances, the authors said. Since bradyarrythmias and aortic stenosis may present similarly (fatigue, lightheadedness, and syncope being hallmarks of both), a careful history is needed to determine if bradyarrhythmia is present.

An electrocardiogram (ECG) or ambulatory rhythm monitoring may identify baseline conduction abnormalities and help predict the need for post-TAVR PPM.

“In this section, we underscored some of the literature that has raised awareness about the presence of preexisting arrhythmias in TAVR patients and suggest that monitoring in selected patients before the procedure is reasonable, particularly those presenting with syncope or lightheadedness,” said Dr. Lilly.
 

Intraprocedural management

On the day of the procedure, patients determined to have elevated risk for complete AV heart block require careful perioperative ECG and hemodynamic monitoring. Regardless of preexisting risk, said the authors that all patients should be monitored on a telemetry unit during the procedure with ability to do emergency pacing if necessary.

“In the periprocedural section, we address the role of electrophysiological studies for identifying patients at high-risk of subsequent heart block,” said Dr. Lilly. “That’s a practice that’s occurring at a number of centers, but the data out there is insufficient to establish it as a pacemaker indication. Routine EP testing for patients deemed at risk for conduction disturbances after TAVR is not guideline-based and more research is needed.”

The document also outlines the effects of medications and anesthesia on postprocedure conduction abnormalities.
 

Post-TAVR management

The authors define post-TAVR management as continuing through 30-days after discharge.

The ECDP carefully outlines which patients can be discharged without monitoring and those for whom outpatient monitoring can be considered.

“If I’m going to pick one thing from this section, it’s the monitoring piece. A lot of patients that have a conduction disturbance right after TAVR – but you’re not sure if it’s going to progress and require a pacemaker – might stay in the hospital for an extended time waiting to see if the heart holds up,” reported Dr. Lilly.

“But a number of centers are now discharging people at 1 or 2 days, which begs the question: What do you do with these folks? Our group has published data showing that 30-day monitoring in select patients is a safe approach,” said Dr. Lilly.

There are shortcomings, however, in existing data, and recommendations will likely change as more data are collected, he explained.

As well, there remains uncertainty in how conduction block should be managed after TAVR, and clinical judgment is “foundational” in this, wrote the authors.

“This document is meant to help programs deal with these situations right now, acknowledging full and well, that really good randomized clinical data is not available,” said Dr. Lilly.

Dr. Lilly has disclosed no relevant financial relationships. The work of the writing committee was supported exclusively by the American College of Cardiology without commercial support.
 

A version of this article originally appeared on Medscape.com.

The American College of Cardiology (ACC) has released a new Expert Consensus Decision Pathway (ECDP) on the management of conduction disturbances after transcatheter aortic valve replacement (TAVR).

The document provides guidance to clinicians in identifying and managing this common complication of TAVR, covering the pre-TAVR, periprocedural and post-TAVR periods.

“Conduction disturbances after TAVR are common and there is currently heterogeneity in how they’re managed, ranging from a casual observational approach to invasive electrophysiological studies and preemptive pacemaker implantation,” said writing committee chair Scott Lilly, MD, PhD, from the Ohio State Wexner Medical Center in Columbus.

“We felt this kind of collaborative effort to review what little research there is on this topic and come to [an] expert consensus was long overdue,” he added.

The document was published online Oct. 21 in the Journal of the American College of Cardiology.

Dr. Lilly stressed in an interview that this effort is an ECDP and not a guideline “because there is not data out there to solidly stand on and say, ‘This is the way we should do things.’ “

His hope is that this document will generate more discussion on this topic and spur some (probably National Institutes of Health–sponsored) clinical trials to better guide practice.
 

Not uncommon and not decreasing

Complete heart block requiring permanent pacemaker (PPM) implantation is seen in about 15% of patients within 30 days after TAVR. While this is a clear indication for PPM, there is no consensus on the management of less severe conduction disturbances such as new bundle branch or transient complete atrioventricular (AV) heart block.

Unlike the rates of bleeding, vascular injury, and stroke, which have decreased over time, the rates of in-hospital PPM implantation after TAVR have not changed significantly since commercialization in 2012. This is a concern because TAVR is increasingly used in younger, lower-risk patients.

“The pacemaker rate really hasn’t improved at a clip we would like to see if it was going to be a durable technology,” Dr. Lilly said.

Consensus regarding a reasonable strategy to manage cardiac conduction disturbances after TAVR has been elusive. This is a result of several things: a dearth of adequately powered, randomized controlled trials; the often transient nature of the conduction disturbances; evolving technologies; and the interplay of cardiology subspecialties involved.

The 2013 European Society of Cardiology guidelines address pacing post-TAVR, but do not provide in-depth discussion on the topic. This is the first effort sponsored by a cardiovascular society in the United States to review the existing data and experience and propose evidence-based expert guidance.
 

Pre-TAVR assessment

Pre-TAVR assessment should consider the patient’s risk for postprocedure conduction disturbances, the authors said. Since bradyarrythmias and aortic stenosis may present similarly (fatigue, lightheadedness, and syncope being hallmarks of both), a careful history is needed to determine if bradyarrhythmia is present.

An electrocardiogram (ECG) or ambulatory rhythm monitoring may identify baseline conduction abnormalities and help predict the need for post-TAVR PPM.

“In this section, we underscored some of the literature that has raised awareness about the presence of preexisting arrhythmias in TAVR patients and suggest that monitoring in selected patients before the procedure is reasonable, particularly those presenting with syncope or lightheadedness,” said Dr. Lilly.
 

Intraprocedural management

On the day of the procedure, patients determined to have elevated risk for complete AV heart block require careful perioperative ECG and hemodynamic monitoring. Regardless of preexisting risk, said the authors that all patients should be monitored on a telemetry unit during the procedure with ability to do emergency pacing if necessary.

“In the periprocedural section, we address the role of electrophysiological studies for identifying patients at high-risk of subsequent heart block,” said Dr. Lilly. “That’s a practice that’s occurring at a number of centers, but the data out there is insufficient to establish it as a pacemaker indication. Routine EP testing for patients deemed at risk for conduction disturbances after TAVR is not guideline-based and more research is needed.”

The document also outlines the effects of medications and anesthesia on postprocedure conduction abnormalities.
 

Post-TAVR management

The authors define post-TAVR management as continuing through 30-days after discharge.

The ECDP carefully outlines which patients can be discharged without monitoring and those for whom outpatient monitoring can be considered.

“If I’m going to pick one thing from this section, it’s the monitoring piece. A lot of patients that have a conduction disturbance right after TAVR – but you’re not sure if it’s going to progress and require a pacemaker – might stay in the hospital for an extended time waiting to see if the heart holds up,” reported Dr. Lilly.

“But a number of centers are now discharging people at 1 or 2 days, which begs the question: What do you do with these folks? Our group has published data showing that 30-day monitoring in select patients is a safe approach,” said Dr. Lilly.

There are shortcomings, however, in existing data, and recommendations will likely change as more data are collected, he explained.

As well, there remains uncertainty in how conduction block should be managed after TAVR, and clinical judgment is “foundational” in this, wrote the authors.

“This document is meant to help programs deal with these situations right now, acknowledging full and well, that really good randomized clinical data is not available,” said Dr. Lilly.

Dr. Lilly has disclosed no relevant financial relationships. The work of the writing committee was supported exclusively by the American College of Cardiology without commercial support.
 

A version of this article originally appeared on Medscape.com.

Highlights of new updated guidelines for cardiopulmonary resuscitation and emergency cardiovascular care from the American Heart Association include management of opioid-related emergencies; discussion of health disparities; and a new emphasis on physical, social, and emotional recovery after resuscitation.

© American Heart Association, Inc.

The AHA is also exploring digital territory to improve CPR outcomes. The guidelines encourage use of mobile phone technology to summon trained laypeople to individuals requiring CPR, and an adaptive learning suite will be available online for personalized CPR instruction, with lessons catered to individual needs and knowledge levels.

These novel approaches reflect an ongoing effort by the AHA to ensure that the guidelines evolve rapidly with science and technology, reported Raina Merchant, MD, chair of the AHA Emergency Cardiovascular Care Committee and associate professor of emergency medicine at the University of Pennsylvania, Philadelphia, and colleagues. In 2015, the committee shifted from 5-year updates to a continuous online review process, citing a need for more immediate implementation of practice-altering data, they wrote in Circulation.

And new approaches do appear to save lives, at least in a hospital setting.

Since 2004, in-hospital cardiac arrest outcomes have been improving, but similar gains have yet to be realized for out-of-hospital cardiac arrest.

“Much of the variation in survival rates is thought to be due to the strength of the Chain of Survival, the [five] critical actions that must occur in rapid succession to maximize the chance of survival from cardiac arrest,” the committee wrote.
 

Update adds sixth link to Chains of Survival: Recovery

“Recovery expectations and survivorship plans that address treatment, surveillance, and rehabilitation need to be provided to cardiac arrest survivors and their caregivers at hospital discharge to address the sequelae of cardiac arrest and optimize transitions of care to independent physical, social, emotional, and role function,” the committee wrote.

Dr. Merchant and colleagues identified three “critically important” recommendations for both cardiac arrest survivors and caregivers during the recovery process: structured psychological assessment; multimodal rehabilitation assessment and treatment; and comprehensive, multidisciplinary discharge planning.

The recovery process is now part of all four Chains of Survival, which are specific to in-hospital and out-of-hospital arrest for adults and children.
 

New advice on opioid overdoses and bystander training

Among instances of out-of-hospital cardiac arrest, the committee noted that opioid overdoses are “sharply on the rise,” leading to new, scenario-specific recommendations. Among them, the committee encouraged lay rescuers and trained responders to activate emergency response systems immediately while awaiting improvements with naloxone and other interventions. They also suggested that, for individuals in known or suspected cardiac arrest, high-quality CPR, including compressions and ventilation, should be prioritized over naloxone administration.

In a broader discussion, the committee identified disparities in CPR training, which could explain lower rates of bystander CPR and poorer outcomes among certain demographics, such as black and Hispanic populations, as well as those with lower socioeconomic status.

“Targeting training efforts should consider barriers such as language, financial considerations, and poor access to information,” the committee wrote.

While low bystander CPR in these areas may be improved through mobile phone technology that alerts trained laypeople to individuals in need, the committee noted that this approach may be impacted by cultural and geographic factors. To date, use of mobile devices to improve bystander intervention rates has been demonstrated through “uniformly positive data,” but never in North America.

According to the guidelines, bystander intervention rates may also be improved through video-based learning, which is as effective as in-person, instructor-led training.

This led the AHA to create an online adaptive learning platform, which the organization describes as a “digital resuscitation portfolio” that connects programs and courses such as the Resuscitation Quality Improvement program and the HeartCode blended learning course.

“It will cover all of the guideline changes,” said Monica Sales, communications manager at the AHA. “It’s really groundbreaking because it’s the first time that we’re able to kind of close that gap between new science and new products.”

The online content also addresses CPR considerations for COVID-19, which were first addressed by interim CPR guidance published by the AHA in April.

According to Alexis Topjian, MD, coauthor of the present guidelines and pediatric critical care medicine physician at Children’s Hospital of Philadelphia, CPR awareness is more important now than ever.

“The major message [of the guidelines] is that high-quality CPR saves lives,” she said. “So push hard, and push fast. You have the power in your hands to make a difference, more so than ever during this pandemic.”

Concerning coronavirus precautions, Dr. Topjian noted that roughly 70% of out-of-hospital CPR events involve people who know each other, so most bystanders have already been exposed to the person in need, thereby reducing the concern of infection.

When asked about performing CPR on strangers, Dr. Topjian remained encouraging, though she noted that decision making may be informed by local coronavirus rates.

“It’s always a personal choice,” she said.
 

More for clinicians

For clinicians, Dr. Topjian highlighted several recommendations, including use of epinephrine as soon as possible during CPR, preferential use of a cuffed endotracheal tube, continuous EEG monitoring during and after cardiac arrest, and rapid intervention for clinical seizures and of nonconvulsive status epilepticus.

From a pediatric perspective, Dr. Topjian pointed out a change in breathing rate for infants and children who are receiving CPR or rescue breathing with a pulse, from 12-20 breaths/min to 20-30 breaths/min. While not a new recommendation, Dr. Topjian also pointed out the lifesaving benefit of early defibrillation among pediatric patients.

The guidelines were funded by the American Heart Association. The investigators disclosed additional relationships with BTG Pharmaceuticals, Zoll Foundation, the National Institutes of Health, and others.

SOURCE: American Heart Association. Circulation. 2020 Oct 20. Suppl 2.

Highlights of new updated guidelines for cardiopulmonary resuscitation and emergency cardiovascular care from the American Heart Association include management of opioid-related emergencies; discussion of health disparities; and a new emphasis on physical, social, and emotional recovery after resuscitation.

© American Heart Association, Inc.

The AHA is also exploring digital territory to improve CPR outcomes. The guidelines encourage use of mobile phone technology to summon trained laypeople to individuals requiring CPR, and an adaptive learning suite will be available online for personalized CPR instruction, with lessons catered to individual needs and knowledge levels.

These novel approaches reflect an ongoing effort by the AHA to ensure that the guidelines evolve rapidly with science and technology, reported Raina Merchant, MD, chair of the AHA Emergency Cardiovascular Care Committee and associate professor of emergency medicine at the University of Pennsylvania, Philadelphia, and colleagues. In 2015, the committee shifted from 5-year updates to a continuous online review process, citing a need for more immediate implementation of practice-altering data, they wrote in Circulation.

And new approaches do appear to save lives, at least in a hospital setting.

Since 2004, in-hospital cardiac arrest outcomes have been improving, but similar gains have yet to be realized for out-of-hospital cardiac arrest.

“Much of the variation in survival rates is thought to be due to the strength of the Chain of Survival, the [five] critical actions that must occur in rapid succession to maximize the chance of survival from cardiac arrest,” the committee wrote.
 

Update adds sixth link to Chains of Survival: Recovery

“Recovery expectations and survivorship plans that address treatment, surveillance, and rehabilitation need to be provided to cardiac arrest survivors and their caregivers at hospital discharge to address the sequelae of cardiac arrest and optimize transitions of care to independent physical, social, emotional, and role function,” the committee wrote.

Dr. Merchant and colleagues identified three “critically important” recommendations for both cardiac arrest survivors and caregivers during the recovery process: structured psychological assessment; multimodal rehabilitation assessment and treatment; and comprehensive, multidisciplinary discharge planning.

The recovery process is now part of all four Chains of Survival, which are specific to in-hospital and out-of-hospital arrest for adults and children.
 

New advice on opioid overdoses and bystander training

Among instances of out-of-hospital cardiac arrest, the committee noted that opioid overdoses are “sharply on the rise,” leading to new, scenario-specific recommendations. Among them, the committee encouraged lay rescuers and trained responders to activate emergency response systems immediately while awaiting improvements with naloxone and other interventions. They also suggested that, for individuals in known or suspected cardiac arrest, high-quality CPR, including compressions and ventilation, should be prioritized over naloxone administration.

In a broader discussion, the committee identified disparities in CPR training, which could explain lower rates of bystander CPR and poorer outcomes among certain demographics, such as black and Hispanic populations, as well as those with lower socioeconomic status.

“Targeting training efforts should consider barriers such as language, financial considerations, and poor access to information,” the committee wrote.

While low bystander CPR in these areas may be improved through mobile phone technology that alerts trained laypeople to individuals in need, the committee noted that this approach may be impacted by cultural and geographic factors. To date, use of mobile devices to improve bystander intervention rates has been demonstrated through “uniformly positive data,” but never in North America.

According to the guidelines, bystander intervention rates may also be improved through video-based learning, which is as effective as in-person, instructor-led training.

This led the AHA to create an online adaptive learning platform, which the organization describes as a “digital resuscitation portfolio” that connects programs and courses such as the Resuscitation Quality Improvement program and the HeartCode blended learning course.

“It will cover all of the guideline changes,” said Monica Sales, communications manager at the AHA. “It’s really groundbreaking because it’s the first time that we’re able to kind of close that gap between new science and new products.”

The online content also addresses CPR considerations for COVID-19, which were first addressed by interim CPR guidance published by the AHA in April.

According to Alexis Topjian, MD, coauthor of the present guidelines and pediatric critical care medicine physician at Children’s Hospital of Philadelphia, CPR awareness is more important now than ever.

“The major message [of the guidelines] is that high-quality CPR saves lives,” she said. “So push hard, and push fast. You have the power in your hands to make a difference, more so than ever during this pandemic.”

Concerning coronavirus precautions, Dr. Topjian noted that roughly 70% of out-of-hospital CPR events involve people who know each other, so most bystanders have already been exposed to the person in need, thereby reducing the concern of infection.

When asked about performing CPR on strangers, Dr. Topjian remained encouraging, though she noted that decision making may be informed by local coronavirus rates.

“It’s always a personal choice,” she said.
 

More for clinicians

For clinicians, Dr. Topjian highlighted several recommendations, including use of epinephrine as soon as possible during CPR, preferential use of a cuffed endotracheal tube, continuous EEG monitoring during and after cardiac arrest, and rapid intervention for clinical seizures and of nonconvulsive status epilepticus.

From a pediatric perspective, Dr. Topjian pointed out a change in breathing rate for infants and children who are receiving CPR or rescue breathing with a pulse, from 12-20 breaths/min to 20-30 breaths/min. While not a new recommendation, Dr. Topjian also pointed out the lifesaving benefit of early defibrillation among pediatric patients.

The guidelines were funded by the American Heart Association. The investigators disclosed additional relationships with BTG Pharmaceuticals, Zoll Foundation, the National Institutes of Health, and others.

SOURCE: American Heart Association. Circulation. 2020 Oct 20. Suppl 2.

Highlights of new updated guidelines for cardiopulmonary resuscitation and emergency cardiovascular care from the American Heart Association include management of opioid-related emergencies; discussion of health disparities; and a new emphasis on physical, social, and emotional recovery after resuscitation.

© American Heart Association, Inc.

The AHA is also exploring digital territory to improve CPR outcomes. The guidelines encourage use of mobile phone technology to summon trained laypeople to individuals requiring CPR, and an adaptive learning suite will be available online for personalized CPR instruction, with lessons catered to individual needs and knowledge levels.

These novel approaches reflect an ongoing effort by the AHA to ensure that the guidelines evolve rapidly with science and technology, reported Raina Merchant, MD, chair of the AHA Emergency Cardiovascular Care Committee and associate professor of emergency medicine at the University of Pennsylvania, Philadelphia, and colleagues. In 2015, the committee shifted from 5-year updates to a continuous online review process, citing a need for more immediate implementation of practice-altering data, they wrote in Circulation.

And new approaches do appear to save lives, at least in a hospital setting.

Since 2004, in-hospital cardiac arrest outcomes have been improving, but similar gains have yet to be realized for out-of-hospital cardiac arrest.

“Much of the variation in survival rates is thought to be due to the strength of the Chain of Survival, the [five] critical actions that must occur in rapid succession to maximize the chance of survival from cardiac arrest,” the committee wrote.
 

Update adds sixth link to Chains of Survival: Recovery

“Recovery expectations and survivorship plans that address treatment, surveillance, and rehabilitation need to be provided to cardiac arrest survivors and their caregivers at hospital discharge to address the sequelae of cardiac arrest and optimize transitions of care to independent physical, social, emotional, and role function,” the committee wrote.

Dr. Merchant and colleagues identified three “critically important” recommendations for both cardiac arrest survivors and caregivers during the recovery process: structured psychological assessment; multimodal rehabilitation assessment and treatment; and comprehensive, multidisciplinary discharge planning.

The recovery process is now part of all four Chains of Survival, which are specific to in-hospital and out-of-hospital arrest for adults and children.
 

New advice on opioid overdoses and bystander training

Among instances of out-of-hospital cardiac arrest, the committee noted that opioid overdoses are “sharply on the rise,” leading to new, scenario-specific recommendations. Among them, the committee encouraged lay rescuers and trained responders to activate emergency response systems immediately while awaiting improvements with naloxone and other interventions. They also suggested that, for individuals in known or suspected cardiac arrest, high-quality CPR, including compressions and ventilation, should be prioritized over naloxone administration.

In a broader discussion, the committee identified disparities in CPR training, which could explain lower rates of bystander CPR and poorer outcomes among certain demographics, such as black and Hispanic populations, as well as those with lower socioeconomic status.

“Targeting training efforts should consider barriers such as language, financial considerations, and poor access to information,” the committee wrote.

While low bystander CPR in these areas may be improved through mobile phone technology that alerts trained laypeople to individuals in need, the committee noted that this approach may be impacted by cultural and geographic factors. To date, use of mobile devices to improve bystander intervention rates has been demonstrated through “uniformly positive data,” but never in North America.

According to the guidelines, bystander intervention rates may also be improved through video-based learning, which is as effective as in-person, instructor-led training.

This led the AHA to create an online adaptive learning platform, which the organization describes as a “digital resuscitation portfolio” that connects programs and courses such as the Resuscitation Quality Improvement program and the HeartCode blended learning course.

“It will cover all of the guideline changes,” said Monica Sales, communications manager at the AHA. “It’s really groundbreaking because it’s the first time that we’re able to kind of close that gap between new science and new products.”

The online content also addresses CPR considerations for COVID-19, which were first addressed by interim CPR guidance published by the AHA in April.

According to Alexis Topjian, MD, coauthor of the present guidelines and pediatric critical care medicine physician at Children’s Hospital of Philadelphia, CPR awareness is more important now than ever.

“The major message [of the guidelines] is that high-quality CPR saves lives,” she said. “So push hard, and push fast. You have the power in your hands to make a difference, more so than ever during this pandemic.”

Concerning coronavirus precautions, Dr. Topjian noted that roughly 70% of out-of-hospital CPR events involve people who know each other, so most bystanders have already been exposed to the person in need, thereby reducing the concern of infection.

When asked about performing CPR on strangers, Dr. Topjian remained encouraging, though she noted that decision making may be informed by local coronavirus rates.

“It’s always a personal choice,” she said.
 

More for clinicians

For clinicians, Dr. Topjian highlighted several recommendations, including use of epinephrine as soon as possible during CPR, preferential use of a cuffed endotracheal tube, continuous EEG monitoring during and after cardiac arrest, and rapid intervention for clinical seizures and of nonconvulsive status epilepticus.

From a pediatric perspective, Dr. Topjian pointed out a change in breathing rate for infants and children who are receiving CPR or rescue breathing with a pulse, from 12-20 breaths/min to 20-30 breaths/min. While not a new recommendation, Dr. Topjian also pointed out the lifesaving benefit of early defibrillation among pediatric patients.

The guidelines were funded by the American Heart Association. The investigators disclosed additional relationships with BTG Pharmaceuticals, Zoll Foundation, the National Institutes of Health, and others.

SOURCE: American Heart Association. Circulation. 2020 Oct 20. Suppl 2.