Arrhythmias & EP

Treatment with a novel myosin-inhibiting agent may improve symptoms and hemodynamics enough in patients with obstructive hypertrophic cardiomyopathy (OHCM) so that they can avoid or at least delay septal reduction therapy (SRT), suggests a randomized trial of modest size and duration.

Of 112 patients with OHCM who were sick enough while receiving standard medications to qualify for SRT, those assigned to take mavacamten (MyoKardia) instead of placebo were far less likely to still be eligible for SRT 16 weeks later.

In other words, their OHCM had improved enough during therapy with mavacamten such that SRT, either surgical septal myectomy or transcatheter alcohol septal ablation, could no longer be recommended per guidelines.

Mavacamten, which lessens myocardial contractility by selective inhibition of cardiac myosin, is the first agent tested in prospective trials to appear as a viable medical option in patients with severe, symptomatic OHCM, observed principal investigator Milind Y. Desai, MD, MBA, of the Cleveland Clinic.

“There’s clearly an unmet need for noninvasive therapies, medical therapies, that work in OHCM,” he said in an interview. Mavacamten “adds to the armamentarium” of OHCM management options and may give patients with symptoms despite conventional medications an alternative to SRT, which is considered definitive but has drawbacks.

The goal of SRT is to alleviate obstruction of the left ventricular outflow tract (LVOT), but surgical SRT requires a sternotomy, with all the risks and recovery time that entails. Catheter-based alcohol septal ablation is a less common alternative for some patients with suitable anatomy, Dr. Desai noted.

But those procedures “are not uniformly available, and even when  available, the outcomes are fairly heterogeneous,” he said. “The guidelines recommend that you should go to a center with a mortality rate of less than 1% with these procedures. Centers like that are very few across the world,” and procedural mortality can be much higher at centers with less SRT experience.

Dr. Desai presented the results of VALOR-HCM at the annual scientific sessions of the American College of Cardiology. Of the 56 patients assigned to mavacamten, 10 (17.9%) decided to undergo SRT by the end of the trial, or otherwise still met guideline-recommended criteria for receiving SRT, the primary endpoint. In comparison, 43 of the 56 patients (76.8%) in the control group (P < .0001) met that endpoint.

More patients receiving mavacamten improved by at least one New York Heart Association (NYHA) functional class during the trial’s 16 weeks: 63% versus 21% for those assigned to placebo. And 27% and 2%, respectively, improved by at least two NYHA classes, Dr. Desai said.

Guidelines recommend that SRT be reserved for patients in NYHA class III or IV heart failure with a resting or provoked LVOT gradient of at least 50 mm Hg.

Of note, Desai said, only two patients in each group elected to undergo SRT during the study. “The primary endpoint was driven by reduction in guideline eligibility for SRT, but 95% of patients in the study chose to continue with medical therapy.”

Speaking as a panelist after Dr. Desai’s presentation, Lynne W. Stevenson, MD, lauded the phase 3 trial’s “brave design,” which featured a highly unusual subjective primary endpoint and framed it as an advantage.

That the trial showed a significant mavacamten effect for that endpoint “answered, in one step, the question of what does this actually mean to the patient – which often takes much longer,” observed Dr. Stevenson, from Vanderbilt University, Nashville, Tenn.

Even so, she added, whether patients still qualified for SRT in the trial at least had to be supported by objective measures of LVOT gradient and NT-proBNP levels.

“My perspective is that of a cardiac surgeon who performs septal myectomies,” said John Cleveland, MD, University of Colorado at Denver, Aurora, who said he was impressed at how few patients receiving mavacamten went on to undergo SRT, while the rest were able to at least defer that decision.

Current recommendations are that patients who go to SRT “should be maximally medically treated and still symptomatic,” Dr. Cleveland observed at a press conference on VALOR-HCM. Should mavacamten be added to the list of agents to use before resorting to invasive therapy? “My answer would be yes,” he said, and patients who remain symptomatic even while receiving the myosin inhibitor and other medications should proceed to SRT.

The trial’s patients had documented OHCM, severe symptoms, and a resting or provoked LVOT gradient of at least 50 mm Hg despite maximally tolerated medications – which could include disopyramide, beta-blockers, and calcium channel blockers. About half the study population was female, and 89% were White. All had been referred for SRT.

Active therapy consisted of mavacamten initiated at 5 mg/day, with up-titrations at 8 and 12 weeks as tolerated, guided by echocardiographic left ventricular ejection fraction and LVOT gradient.  

Most secondary endpoints improved significantly in patients receiving the drug, compared with placebo. They included measures of quality of life, symptom status, ventricular function, natriuretic peptides, and troponin I.

The secondary outcomes are consistent with what was observed in the EXPLORER-HCM trial, which in 2020 suggested that mavacamten could improve measures of quality of life, NYHA functional class, LVOT gradient, peak VO2, and other metrics in patients with OHCM.

Dr. Desai said mavacamten was well tolerated. “There were two patients who had a transient drop in ejection fraction to less than 50%, so the drug was temporarily discontinued, but resumed at a lower dose and they were able to complete the study.”

Dr. Stevenson commented on the “pretty quick” up-titration of mavacamten dosages in a study lasting only 4 months, which could have been a concern given the drug’s limited track record and its mechanism of action targeting contractility. “Fortunately, no serious safety signals” were observed.

Dr. Desai emphasized that mavacamten up-titrations were strictly guided by regular echocardiographic monitoring and assessment of LVOT gradients, in addition to clinical responses. And that, he said, is likely how up-titrations should be carried out if mavacamten is approved for OHCM.

VALOR-HCM was supported by MyoKardia. Dr. Desai disclosed receiving honoraria or consulting fees from Caristo Diagnostics, Medtronic, and MyoKardia. Dr. Stevenson disclosed receiving honoraria or consulting fees from Novartis; serving on a data safety monitoring board for Livanova; and other relationships with Abbott Medical, Biotronik, Boston Scientific, Bristol-Myers Squibb, Endotronic, Gore Medical, and Johnson & Johnson. Dr. Cleveland had no disclosures.

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

Treatment with a novel myosin-inhibiting agent may improve symptoms and hemodynamics enough in patients with obstructive hypertrophic cardiomyopathy (OHCM) so that they can avoid or at least delay septal reduction therapy (SRT), suggests a randomized trial of modest size and duration.

Of 112 patients with OHCM who were sick enough while receiving standard medications to qualify for SRT, those assigned to take mavacamten (MyoKardia) instead of placebo were far less likely to still be eligible for SRT 16 weeks later.

In other words, their OHCM had improved enough during therapy with mavacamten such that SRT, either surgical septal myectomy or transcatheter alcohol septal ablation, could no longer be recommended per guidelines.

Mavacamten, which lessens myocardial contractility by selective inhibition of cardiac myosin, is the first agent tested in prospective trials to appear as a viable medical option in patients with severe, symptomatic OHCM, observed principal investigator Milind Y. Desai, MD, MBA, of the Cleveland Clinic.

“There’s clearly an unmet need for noninvasive therapies, medical therapies, that work in OHCM,” he said in an interview. Mavacamten “adds to the armamentarium” of OHCM management options and may give patients with symptoms despite conventional medications an alternative to SRT, which is considered definitive but has drawbacks.

The goal of SRT is to alleviate obstruction of the left ventricular outflow tract (LVOT), but surgical SRT requires a sternotomy, with all the risks and recovery time that entails. Catheter-based alcohol septal ablation is a less common alternative for some patients with suitable anatomy, Dr. Desai noted.

But those procedures “are not uniformly available, and even when  available, the outcomes are fairly heterogeneous,” he said. “The guidelines recommend that you should go to a center with a mortality rate of less than 1% with these procedures. Centers like that are very few across the world,” and procedural mortality can be much higher at centers with less SRT experience.

Dr. Desai presented the results of VALOR-HCM at the annual scientific sessions of the American College of Cardiology. Of the 56 patients assigned to mavacamten, 10 (17.9%) decided to undergo SRT by the end of the trial, or otherwise still met guideline-recommended criteria for receiving SRT, the primary endpoint. In comparison, 43 of the 56 patients (76.8%) in the control group (P < .0001) met that endpoint.

More patients receiving mavacamten improved by at least one New York Heart Association (NYHA) functional class during the trial’s 16 weeks: 63% versus 21% for those assigned to placebo. And 27% and 2%, respectively, improved by at least two NYHA classes, Dr. Desai said.

Guidelines recommend that SRT be reserved for patients in NYHA class III or IV heart failure with a resting or provoked LVOT gradient of at least 50 mm Hg.

Of note, Desai said, only two patients in each group elected to undergo SRT during the study. “The primary endpoint was driven by reduction in guideline eligibility for SRT, but 95% of patients in the study chose to continue with medical therapy.”

Speaking as a panelist after Dr. Desai’s presentation, Lynne W. Stevenson, MD, lauded the phase 3 trial’s “brave design,” which featured a highly unusual subjective primary endpoint and framed it as an advantage.

That the trial showed a significant mavacamten effect for that endpoint “answered, in one step, the question of what does this actually mean to the patient – which often takes much longer,” observed Dr. Stevenson, from Vanderbilt University, Nashville, Tenn.

Even so, she added, whether patients still qualified for SRT in the trial at least had to be supported by objective measures of LVOT gradient and NT-proBNP levels.

“My perspective is that of a cardiac surgeon who performs septal myectomies,” said John Cleveland, MD, University of Colorado at Denver, Aurora, who said he was impressed at how few patients receiving mavacamten went on to undergo SRT, while the rest were able to at least defer that decision.

Current recommendations are that patients who go to SRT “should be maximally medically treated and still symptomatic,” Dr. Cleveland observed at a press conference on VALOR-HCM. Should mavacamten be added to the list of agents to use before resorting to invasive therapy? “My answer would be yes,” he said, and patients who remain symptomatic even while receiving the myosin inhibitor and other medications should proceed to SRT.

The trial’s patients had documented OHCM, severe symptoms, and a resting or provoked LVOT gradient of at least 50 mm Hg despite maximally tolerated medications – which could include disopyramide, beta-blockers, and calcium channel blockers. About half the study population was female, and 89% were White. All had been referred for SRT.

Active therapy consisted of mavacamten initiated at 5 mg/day, with up-titrations at 8 and 12 weeks as tolerated, guided by echocardiographic left ventricular ejection fraction and LVOT gradient.  

Most secondary endpoints improved significantly in patients receiving the drug, compared with placebo. They included measures of quality of life, symptom status, ventricular function, natriuretic peptides, and troponin I.

The secondary outcomes are consistent with what was observed in the EXPLORER-HCM trial, which in 2020 suggested that mavacamten could improve measures of quality of life, NYHA functional class, LVOT gradient, peak VO2, and other metrics in patients with OHCM.

Dr. Desai said mavacamten was well tolerated. “There were two patients who had a transient drop in ejection fraction to less than 50%, so the drug was temporarily discontinued, but resumed at a lower dose and they were able to complete the study.”

Dr. Stevenson commented on the “pretty quick” up-titration of mavacamten dosages in a study lasting only 4 months, which could have been a concern given the drug’s limited track record and its mechanism of action targeting contractility. “Fortunately, no serious safety signals” were observed.

Dr. Desai emphasized that mavacamten up-titrations were strictly guided by regular echocardiographic monitoring and assessment of LVOT gradients, in addition to clinical responses. And that, he said, is likely how up-titrations should be carried out if mavacamten is approved for OHCM.

VALOR-HCM was supported by MyoKardia. Dr. Desai disclosed receiving honoraria or consulting fees from Caristo Diagnostics, Medtronic, and MyoKardia. Dr. Stevenson disclosed receiving honoraria or consulting fees from Novartis; serving on a data safety monitoring board for Livanova; and other relationships with Abbott Medical, Biotronik, Boston Scientific, Bristol-Myers Squibb, Endotronic, Gore Medical, and Johnson & Johnson. Dr. Cleveland had no disclosures.

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

Treatment with a novel myosin-inhibiting agent may improve symptoms and hemodynamics enough in patients with obstructive hypertrophic cardiomyopathy (OHCM) so that they can avoid or at least delay septal reduction therapy (SRT), suggests a randomized trial of modest size and duration.

Of 112 patients with OHCM who were sick enough while receiving standard medications to qualify for SRT, those assigned to take mavacamten (MyoKardia) instead of placebo were far less likely to still be eligible for SRT 16 weeks later.

In other words, their OHCM had improved enough during therapy with mavacamten such that SRT, either surgical septal myectomy or transcatheter alcohol septal ablation, could no longer be recommended per guidelines.

Mavacamten, which lessens myocardial contractility by selective inhibition of cardiac myosin, is the first agent tested in prospective trials to appear as a viable medical option in patients with severe, symptomatic OHCM, observed principal investigator Milind Y. Desai, MD, MBA, of the Cleveland Clinic.

“There’s clearly an unmet need for noninvasive therapies, medical therapies, that work in OHCM,” he said in an interview. Mavacamten “adds to the armamentarium” of OHCM management options and may give patients with symptoms despite conventional medications an alternative to SRT, which is considered definitive but has drawbacks.

The goal of SRT is to alleviate obstruction of the left ventricular outflow tract (LVOT), but surgical SRT requires a sternotomy, with all the risks and recovery time that entails. Catheter-based alcohol septal ablation is a less common alternative for some patients with suitable anatomy, Dr. Desai noted.

But those procedures “are not uniformly available, and even when  available, the outcomes are fairly heterogeneous,” he said. “The guidelines recommend that you should go to a center with a mortality rate of less than 1% with these procedures. Centers like that are very few across the world,” and procedural mortality can be much higher at centers with less SRT experience.

Dr. Desai presented the results of VALOR-HCM at the annual scientific sessions of the American College of Cardiology. Of the 56 patients assigned to mavacamten, 10 (17.9%) decided to undergo SRT by the end of the trial, or otherwise still met guideline-recommended criteria for receiving SRT, the primary endpoint. In comparison, 43 of the 56 patients (76.8%) in the control group (P < .0001) met that endpoint.

More patients receiving mavacamten improved by at least one New York Heart Association (NYHA) functional class during the trial’s 16 weeks: 63% versus 21% for those assigned to placebo. And 27% and 2%, respectively, improved by at least two NYHA classes, Dr. Desai said.

Guidelines recommend that SRT be reserved for patients in NYHA class III or IV heart failure with a resting or provoked LVOT gradient of at least 50 mm Hg.

Of note, Desai said, only two patients in each group elected to undergo SRT during the study. “The primary endpoint was driven by reduction in guideline eligibility for SRT, but 95% of patients in the study chose to continue with medical therapy.”

Speaking as a panelist after Dr. Desai’s presentation, Lynne W. Stevenson, MD, lauded the phase 3 trial’s “brave design,” which featured a highly unusual subjective primary endpoint and framed it as an advantage.

That the trial showed a significant mavacamten effect for that endpoint “answered, in one step, the question of what does this actually mean to the patient – which often takes much longer,” observed Dr. Stevenson, from Vanderbilt University, Nashville, Tenn.

Even so, she added, whether patients still qualified for SRT in the trial at least had to be supported by objective measures of LVOT gradient and NT-proBNP levels.

“My perspective is that of a cardiac surgeon who performs septal myectomies,” said John Cleveland, MD, University of Colorado at Denver, Aurora, who said he was impressed at how few patients receiving mavacamten went on to undergo SRT, while the rest were able to at least defer that decision.

Current recommendations are that patients who go to SRT “should be maximally medically treated and still symptomatic,” Dr. Cleveland observed at a press conference on VALOR-HCM. Should mavacamten be added to the list of agents to use before resorting to invasive therapy? “My answer would be yes,” he said, and patients who remain symptomatic even while receiving the myosin inhibitor and other medications should proceed to SRT.

The trial’s patients had documented OHCM, severe symptoms, and a resting or provoked LVOT gradient of at least 50 mm Hg despite maximally tolerated medications – which could include disopyramide, beta-blockers, and calcium channel blockers. About half the study population was female, and 89% were White. All had been referred for SRT.

Active therapy consisted of mavacamten initiated at 5 mg/day, with up-titrations at 8 and 12 weeks as tolerated, guided by echocardiographic left ventricular ejection fraction and LVOT gradient.  

Most secondary endpoints improved significantly in patients receiving the drug, compared with placebo. They included measures of quality of life, symptom status, ventricular function, natriuretic peptides, and troponin I.

The secondary outcomes are consistent with what was observed in the EXPLORER-HCM trial, which in 2020 suggested that mavacamten could improve measures of quality of life, NYHA functional class, LVOT gradient, peak VO2, and other metrics in patients with OHCM.

Dr. Desai said mavacamten was well tolerated. “There were two patients who had a transient drop in ejection fraction to less than 50%, so the drug was temporarily discontinued, but resumed at a lower dose and they were able to complete the study.”

Dr. Stevenson commented on the “pretty quick” up-titration of mavacamten dosages in a study lasting only 4 months, which could have been a concern given the drug’s limited track record and its mechanism of action targeting contractility. “Fortunately, no serious safety signals” were observed.

Dr. Desai emphasized that mavacamten up-titrations were strictly guided by regular echocardiographic monitoring and assessment of LVOT gradients, in addition to clinical responses. And that, he said, is likely how up-titrations should be carried out if mavacamten is approved for OHCM.

VALOR-HCM was supported by MyoKardia. Dr. Desai disclosed receiving honoraria or consulting fees from Caristo Diagnostics, Medtronic, and MyoKardia. Dr. Stevenson disclosed receiving honoraria or consulting fees from Novartis; serving on a data safety monitoring board for Livanova; and other relationships with Abbott Medical, Biotronik, Boston Scientific, Bristol-Myers Squibb, Endotronic, Gore Medical, and Johnson & Johnson. Dr. Cleveland had no disclosures.

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

Even very light alcohol intake is associated with an increased risk for cardiovascular disease, compared with not drinking at all, and the risk increases exponentially as alcohol intake rises, even at moderate levels, a new study shows.

“Our findings suggest that the observed benefit in individuals with light to moderate alcohol intake, which is consistently shown in epidemiological studies, is likely due to other positive lifestyle factors that are common in these individuals who drink lightly,” senior author Krishna Aragam, MD, Massachusetts General Hospital, Boston, told this news organization.

“Our results also showed that while all levels of alcohol were linked to increased risk of cardiovascular disease, the association was not linear. Rather, light alcohol intake was associated with rather modest risk increases, but there were exponential increases in cardiovascular risk with increasing amounts of alcohol consumption,” he said.

As the risk gradient appeared to increase quite sharply even between 1 and 2 drinks per day, Dr. Aragam suggested that what might be regarded as safe levels of drinking may trend downward in the future.

Kirby Hamilton/iStockphoto

They also conducted genetic analyses to examine the effect of alcohol and cardiovascular disease.   

Dr. Aragam explained that previous work has shown good evidence, in individuals who choose to drink, that several relevant genetic variants predict levels of alcohol consumption quite accurately.

“Mendelian randomization using these gene variants allows for stronger inferences about potential causality than do observational studies, as they are less affected by confounding factors,” he noted.

Newer techniques in Mendelian randomization in which data on several gene variants linked to alcohol consumption are combined into a score allow for a greater understanding of the risk linked to different amount of alcohol intake, he added.

In these Mendelian randomization analyses, a 1-standard deviation increase in genetically predicted alcohol consumption was associated with 1.3-fold higher risk of hypertension (P < .001) and 1.4-fold higher risk of coronary artery disease (P = .006).

Further analyses suggested nonlinear associations between alcohol consumption and both hypertension and coronary artery disease; light alcohol intake was associated with minimal increases in cardiovascular risk, whereas heavier consumption was associated with exponential increases in risk of both clinical and subclinical cardiovascular disease.

These results were replicated in a second database of 30,716 individuals from the Mass General Brigham Biobank.

“The findings of this study suggest that the observed cardioprotective effects of light to moderate alcohol intake may be largely mediated by confounding lifestyle factors,” the researchers conclude. “Genetic analyses suggest causal associations between alcohol intake and cardiovascular disease but with unequal and exponential increases in risk at greater levels of intake, which should be accounted for in health recommendations around the habitual consumption of alcohol.”

What is an acceptable level? 

“Specifically, our results suggest that consuming as many as 7 drinks per week is associated with relatively modest increases in cardiovascular risk,” they write.

But they point out that there are unequal increases in cardiovascular risk when progressing from 0 to 7 versus 7 to 14 drinks per week in both men and women.

“Although risk thresholds are inherently somewhat subjective, these findings again bring into question whether an average consumption of 2 drinks per day (14 drinks per week) should be designated a low-risk behavior,” they say.

“Furthermore, as several-fold increases in risk were observed for those consuming 21 or more drinks per week, our results emphasize the importance of aggressive efforts to reduce alcohol intake among heavy drinkers,” they add.

Dr. Aragam elaborated: “Our data suggest that reducing alcohol intake will reduce cardiovascular risk in all individuals, but the extent of the relative risk reduction is quite different depending on the current levels of consumption. For the same absolute reduction in alcohol intake, the gains in terms of reduction in cardiovascular risk will be more pronounced in those who drink heavily and will be more modest in those who drink at a light level.”

The results also suggest that while all levels of alcohol intake increase cardiovascular risk, there are low levels of alcohol consumption that do not carry major elevations in risk, but these are probably lower than those currently recommended, Dr. Aragam pointed out. 

“This doesn’t mean that everyone has to give up drinking alcohol completely, just that you shouldn’t consume with the goal of improving cardiovascular health. In fact, our analyses suggest that in an otherwise healthy person, up to 1 drink per day may not pose outsized risks,” he said. “And, even in a less healthy person who might be smoking, eating poorly, and drinking up to 1 drink per day, it may be a higher priority to focus on smoking cessation and diet than cutting back further on alcohol.”

“Beyond that amount, though, the jury is still out. Our models suggested marked increases in risk even between 1 and 2 drinks per day, and of course even greater risk increases beyond that. So, it’s probably worth revisiting what one might consider a ‘safe’ amount within the moderate drinking categories. The conservative move for now might be to advise a limit of 1 drink per day,” he said.   

Dr. Aragam is supported by grants from the National Institutes of Health and the American Heart Association. He reports receiving speaking fees from the Novartis Institute for Biomedical Research.

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

Even very light alcohol intake is associated with an increased risk for cardiovascular disease, compared with not drinking at all, and the risk increases exponentially as alcohol intake rises, even at moderate levels, a new study shows.

“Our findings suggest that the observed benefit in individuals with light to moderate alcohol intake, which is consistently shown in epidemiological studies, is likely due to other positive lifestyle factors that are common in these individuals who drink lightly,” senior author Krishna Aragam, MD, Massachusetts General Hospital, Boston, told this news organization.

“Our results also showed that while all levels of alcohol were linked to increased risk of cardiovascular disease, the association was not linear. Rather, light alcohol intake was associated with rather modest risk increases, but there were exponential increases in cardiovascular risk with increasing amounts of alcohol consumption,” he said.

As the risk gradient appeared to increase quite sharply even between 1 and 2 drinks per day, Dr. Aragam suggested that what might be regarded as safe levels of drinking may trend downward in the future.

Kirby Hamilton/iStockphoto

They also conducted genetic analyses to examine the effect of alcohol and cardiovascular disease.   

Dr. Aragam explained that previous work has shown good evidence, in individuals who choose to drink, that several relevant genetic variants predict levels of alcohol consumption quite accurately.

“Mendelian randomization using these gene variants allows for stronger inferences about potential causality than do observational studies, as they are less affected by confounding factors,” he noted.

Newer techniques in Mendelian randomization in which data on several gene variants linked to alcohol consumption are combined into a score allow for a greater understanding of the risk linked to different amount of alcohol intake, he added.

In these Mendelian randomization analyses, a 1-standard deviation increase in genetically predicted alcohol consumption was associated with 1.3-fold higher risk of hypertension (P < .001) and 1.4-fold higher risk of coronary artery disease (P = .006).

Further analyses suggested nonlinear associations between alcohol consumption and both hypertension and coronary artery disease; light alcohol intake was associated with minimal increases in cardiovascular risk, whereas heavier consumption was associated with exponential increases in risk of both clinical and subclinical cardiovascular disease.

These results were replicated in a second database of 30,716 individuals from the Mass General Brigham Biobank.

“The findings of this study suggest that the observed cardioprotective effects of light to moderate alcohol intake may be largely mediated by confounding lifestyle factors,” the researchers conclude. “Genetic analyses suggest causal associations between alcohol intake and cardiovascular disease but with unequal and exponential increases in risk at greater levels of intake, which should be accounted for in health recommendations around the habitual consumption of alcohol.”

What is an acceptable level? 

“Specifically, our results suggest that consuming as many as 7 drinks per week is associated with relatively modest increases in cardiovascular risk,” they write.

But they point out that there are unequal increases in cardiovascular risk when progressing from 0 to 7 versus 7 to 14 drinks per week in both men and women.

“Although risk thresholds are inherently somewhat subjective, these findings again bring into question whether an average consumption of 2 drinks per day (14 drinks per week) should be designated a low-risk behavior,” they say.

“Furthermore, as several-fold increases in risk were observed for those consuming 21 or more drinks per week, our results emphasize the importance of aggressive efforts to reduce alcohol intake among heavy drinkers,” they add.

Dr. Aragam elaborated: “Our data suggest that reducing alcohol intake will reduce cardiovascular risk in all individuals, but the extent of the relative risk reduction is quite different depending on the current levels of consumption. For the same absolute reduction in alcohol intake, the gains in terms of reduction in cardiovascular risk will be more pronounced in those who drink heavily and will be more modest in those who drink at a light level.”

The results also suggest that while all levels of alcohol intake increase cardiovascular risk, there are low levels of alcohol consumption that do not carry major elevations in risk, but these are probably lower than those currently recommended, Dr. Aragam pointed out. 

“This doesn’t mean that everyone has to give up drinking alcohol completely, just that you shouldn’t consume with the goal of improving cardiovascular health. In fact, our analyses suggest that in an otherwise healthy person, up to 1 drink per day may not pose outsized risks,” he said. “And, even in a less healthy person who might be smoking, eating poorly, and drinking up to 1 drink per day, it may be a higher priority to focus on smoking cessation and diet than cutting back further on alcohol.”

“Beyond that amount, though, the jury is still out. Our models suggested marked increases in risk even between 1 and 2 drinks per day, and of course even greater risk increases beyond that. So, it’s probably worth revisiting what one might consider a ‘safe’ amount within the moderate drinking categories. The conservative move for now might be to advise a limit of 1 drink per day,” he said.   

Dr. Aragam is supported by grants from the National Institutes of Health and the American Heart Association. He reports receiving speaking fees from the Novartis Institute for Biomedical Research.

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

Even very light alcohol intake is associated with an increased risk for cardiovascular disease, compared with not drinking at all, and the risk increases exponentially as alcohol intake rises, even at moderate levels, a new study shows.

“Our findings suggest that the observed benefit in individuals with light to moderate alcohol intake, which is consistently shown in epidemiological studies, is likely due to other positive lifestyle factors that are common in these individuals who drink lightly,” senior author Krishna Aragam, MD, Massachusetts General Hospital, Boston, told this news organization.

“Our results also showed that while all levels of alcohol were linked to increased risk of cardiovascular disease, the association was not linear. Rather, light alcohol intake was associated with rather modest risk increases, but there were exponential increases in cardiovascular risk with increasing amounts of alcohol consumption,” he said.

As the risk gradient appeared to increase quite sharply even between 1 and 2 drinks per day, Dr. Aragam suggested that what might be regarded as safe levels of drinking may trend downward in the future.

Kirby Hamilton/iStockphoto

They also conducted genetic analyses to examine the effect of alcohol and cardiovascular disease.   

Dr. Aragam explained that previous work has shown good evidence, in individuals who choose to drink, that several relevant genetic variants predict levels of alcohol consumption quite accurately.

“Mendelian randomization using these gene variants allows for stronger inferences about potential causality than do observational studies, as they are less affected by confounding factors,” he noted.

Newer techniques in Mendelian randomization in which data on several gene variants linked to alcohol consumption are combined into a score allow for a greater understanding of the risk linked to different amount of alcohol intake, he added.

In these Mendelian randomization analyses, a 1-standard deviation increase in genetically predicted alcohol consumption was associated with 1.3-fold higher risk of hypertension (P < .001) and 1.4-fold higher risk of coronary artery disease (P = .006).

Further analyses suggested nonlinear associations between alcohol consumption and both hypertension and coronary artery disease; light alcohol intake was associated with minimal increases in cardiovascular risk, whereas heavier consumption was associated with exponential increases in risk of both clinical and subclinical cardiovascular disease.

These results were replicated in a second database of 30,716 individuals from the Mass General Brigham Biobank.

“The findings of this study suggest that the observed cardioprotective effects of light to moderate alcohol intake may be largely mediated by confounding lifestyle factors,” the researchers conclude. “Genetic analyses suggest causal associations between alcohol intake and cardiovascular disease but with unequal and exponential increases in risk at greater levels of intake, which should be accounted for in health recommendations around the habitual consumption of alcohol.”

What is an acceptable level? 

“Specifically, our results suggest that consuming as many as 7 drinks per week is associated with relatively modest increases in cardiovascular risk,” they write.

But they point out that there are unequal increases in cardiovascular risk when progressing from 0 to 7 versus 7 to 14 drinks per week in both men and women.

“Although risk thresholds are inherently somewhat subjective, these findings again bring into question whether an average consumption of 2 drinks per day (14 drinks per week) should be designated a low-risk behavior,” they say.

“Furthermore, as several-fold increases in risk were observed for those consuming 21 or more drinks per week, our results emphasize the importance of aggressive efforts to reduce alcohol intake among heavy drinkers,” they add.

Dr. Aragam elaborated: “Our data suggest that reducing alcohol intake will reduce cardiovascular risk in all individuals, but the extent of the relative risk reduction is quite different depending on the current levels of consumption. For the same absolute reduction in alcohol intake, the gains in terms of reduction in cardiovascular risk will be more pronounced in those who drink heavily and will be more modest in those who drink at a light level.”

The results also suggest that while all levels of alcohol intake increase cardiovascular risk, there are low levels of alcohol consumption that do not carry major elevations in risk, but these are probably lower than those currently recommended, Dr. Aragam pointed out. 

“This doesn’t mean that everyone has to give up drinking alcohol completely, just that you shouldn’t consume with the goal of improving cardiovascular health. In fact, our analyses suggest that in an otherwise healthy person, up to 1 drink per day may not pose outsized risks,” he said. “And, even in a less healthy person who might be smoking, eating poorly, and drinking up to 1 drink per day, it may be a higher priority to focus on smoking cessation and diet than cutting back further on alcohol.”

“Beyond that amount, though, the jury is still out. Our models suggested marked increases in risk even between 1 and 2 drinks per day, and of course even greater risk increases beyond that. So, it’s probably worth revisiting what one might consider a ‘safe’ amount within the moderate drinking categories. The conservative move for now might be to advise a limit of 1 drink per day,” he said.   

Dr. Aragam is supported by grants from the National Institutes of Health and the American Heart Association. He reports receiving speaking fees from the Novartis Institute for Biomedical Research.

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

Regardless of the pandemic’s sometimes mercurial behavior, the cardiology community appears set to reclaim valued traditions perhaps taken for granted in the pre-COVID era.

They include the bustling scientific congress and its myriad educational and networking prospects, along with pleiotropic effects like unplanned reunions with colleagues and catching up face-to-face with old friends.

That seems evident in the growing number of registrants for live attendance at at the annual scientific sessions of the American College of Cardiology, set for this Saturday through Monday in Washington as well as virtually, for a global reach that was unattainable in the pre-COVID era.

Registrations had hit the 11,000 mark and were picking up speed in recent weeks, ACC 2022 cochair Pamela B. Morris, MD, Medical University of South Carolina, Charleston, said at a mid-March presentation to the media.

They had reached about 12,880 and were still climbing a week before the conference, the ACC confirmed to this news organization. By then the professional registration had surpassed 9,900, of whom more than two-thirds reported plans to attend in person.

Dr. Morris said there had been 117 international submissions for what turned out to be 39 coveted spots on the meeting’s Late-Breaking Clinical Trial (LBCT) and Featured Clinical Research agenda spread across eight separate sessions.

On-site participants at the Walter E. Washington Convention Center should head for the Main Tent in Hall D for all LBCT presentations; venues for the Featured Clinical Research sessions are as noted below. Their real-time virtual equivalents will reside on the online platform’s Hot Topics channel. All noted session times are Eastern Daylight Time.
 

Saturday, April 2, 9:30 a.m.–10:30 a.m. Joint American College of Cardiology/Journal of the American College of Cardiology LBCT (I)

Leading off the conference’s first LBCT session, the randomized VALOR-HCM trial explored whether 16 weeks of mavacamten (MyoKardia) could help patients with severe obstructive hypertrophic cardiomyopathy (HCM) avoid septal reduction therapy, either surgical or by alcohol ablation.

The 22-center VALOR-HCM trial with an estimated enrollment of 100 follows EXPLORER-HCM, which in 2020 suggested the novel myosin-inhibiting agent could improve symptoms, exercise capacity, cardiac remodeling, and quality of life in such patients.

Simply advising people with heart failure (HF) to consume less salt is one thing, but it’s another to show them clinical trial evidence that it might help keep them out of the hospital. The SODIUM-HF (Study of Dietary Intervention Under 100 mmol in Heart Failure) study, conducted at 27 sites in six countries, sought to provide that evidence.

The trial randomly assigned 1,000 patients with NYHA class 2-3 HF to consume no more than 1,500 mg/day in sodium or to receive standard advice to limit sodium intake, and followed them for a year for the endpoint of death from any cause, cardiovascular (CV) hospitalization, or CV emergency department visit.

SODIUM-HF “may provide a rigorous evidence base for sodium restriction in patients with heart failure and may truly change our practice and how we recommend dietary modification,” ACC 2022 vice chair Douglas E. Drachman, MD, Massachusetts General Hospital, Boston, said at the media presentation.

In the same session, the CHAP (Chronic Hypertension and Pregnancy) study explored whether blood pressure (BP) control in pregnant women with new or untreated chronic hypertension could help avert preeclampsia, poor fetal outcomes, and other adverse events.

CHAP assigned about 2,400 women to receive either stepwise antihypertensive therapy to a BP goal of 140/90 mm Hg or lower or no such meds unless their BP reached or exceeded 160/105 mm Hg. Stepwise therapy featured either labetalol or extended-release nifedipine to start, the other agent added as necessary.

The LBCT block also includes the POISE-3 (Perioperative Ischemic Evaluation-3) comparison of the hemostatic agent tranexamic acid vs. placebo in nearly 10,000 patients undergoing noncardiac surgery. A separate randomization of the same cohort, to be reported at a Monday LBCT session, compared pre- and perioperative BP-control strategies.
 

Saturday, April 2, 12:00 p.m.–1:15 p.m. Featured Clinical Research I. Room 143A

This session features a subgroup analysis by age from the REVERSE-IT trial, which had previously showcased the monoclonal antibody bentracimab (PhaseBio Pharmaceuticals) for its ability to reverse the antiplatelet effects of ticagrelor.

REVERSE-IT is accompanied on the schedule by several secondary-endpoint presentations from trials whose primary outcomes have already been presented at meetings or in the journals.

They include the SCORED trial of sotagliflozin in patients with diabetes and chronic kidney disease (CKD); COMPLETE, which explored complete revascularization of multivessel coronary disease at primary stenting; and the FAME-3 comparison of coronary bypass surgery (CABG) vs. percutaneous coronary intervention (PCI) guided by fractional flow reserve (FFR) readings.

The session is to conclude with EDIT-CMD, which was a small, randomized assessment of diltiazem for improving microvascular dysfunction in patients with chronic angina despite nonobstructive coronary disease.
 

Sunday, April 3, 8:00 a.m.–9:15 a.m. Joint American College of Cardiology/Journal of the American Medical Association LBCT (II)

The SuperWIN (Supermarket Web Intervention) study tested an innovative strategy for community-based promotion of healthy lifestyle choices: point-of-purchase dietary education for grocery shoppers with an online instructional component, and follow-up to determine whether it influenced future food choices.

“Dietary interventions are notoriously difficult for us to implement, let alone to study scientifically,” Dr. Drachman observed. “So we think that there may be opportunity for dietary interventions to be best implemented at grocery stores where people are doing their shopping for food.”

SuperWIN compared supermarket shoppers with at least one CV risk factor who participated in the education intervention to a nonintervention control group for any changes in their DASH scores. The scores reflected consistency with the venerable DASH diet based on participants’ food purchases over 3 months.

In the same session, the MITIGATE trial explored whether daily administration of icosapent ethyl (Vascepa) might cut the risk of upper respiratory infection (especially from SARS-CoV-2 or seasonal influenza virus) in persons 50 or older with a history of clinical coronary, neurovascular, or peripheral vascular disease or revascularization. The trial has an estimated enrollment of 39,600.

Accompanying SuperWIN and MITIGATE are studies of several dyslipidemia drugs, including the discontinued antisense agent vupanorsen (Pfizer), as tested in TRANSLATE-TIMI 70;  the PCSK9 inhibitor alirocumab (Praluent), explored for its effects on coronary plaque volume and composition in the PACMAN-AMI trial; and the APOLLO trial, a phase 1 evaluation of SLN360 (Silence Therapeutics), a short interfering ribonucleic acid (siRNA) that suppresses the molecular machinery in the liver that produces lipoprotein(a), or Lp(a).

The 32-patient APOLLO trial’s recently released top-line results suggested that SLN360 at varying dosages reduced Lp(a) levels by about one-half to more than 90%. Although elevated Lp(a) is known to track with CV risk, it remains to be shown whether dropping Lp(a) levels pharmacologically is protective.
 

Sunday, April 3, 9:45 a.m.–11:00 a.m. Joint American College of Cardiology/New England Journal of Medicine LBCT (III)

The meeting’s all-HF late-breaker session includes the METEORIC-HF trial, which compared the myotropic agent omecamtiv mecarbil (Cytokinetics) against placebo for effects on exercise performance over 20 weeks. The trial entered 276 patients with HF with reduced ejection fraction (HFrEF) and reduced peak VO₂.

The GALACTIC-HF trial had previously suggested that the drug improved the risk of HF-related events or CV death in more than 8000 patients with HFrEF, those with the lowest ejection fractions benefiting the most.

This block of trials also features DIAMOND, the latest trial with a gemologic name to look at the potassium sequestrant patiromer (Veltassa) for any protection against hyperkalemia, a familiar side effect of renin-angiotensin-aldosterone inhibitors. DIAMOND tested patiromer in 878 patients with HFrEF who were on beta-blockers and other HF-appropriate medications and had a history of drug-associated hyperkalemia.

Previously, the AMBER trial of patients with CKD or refractory hypertension on spironolactone had suggested the drug might be protective enough against hyperkalemia to allow higher and more consistent dosing of BP-lowering agents.

Also in the session: the randomized IVVE (Influenza Vaccine to Prevent Adverse Vascular Events) trial, with an estimated 5,000 patients with HF in Africa, Asia, and the Middle East; PROMPT-HF, with a projected 1,310 HF patients and billed as a cluster-randomized pragmatic trial of a strategy for improving guideline-directed outpatient medical therapy; and MAVA-LTE, the long-term extension study of an estimated 310 patients who were in the MAVERICK-HCM and EXPLORER-HCM mavacamten trials.
 

Sunday, April 3, 12:15–1:30 p.m. Featured Clinical Research II. Main Tent, Hall D

The arrhythmia-centric session includes PARTITA, with its estimated 590 patients with primary- or secondary-prevention implantable cardioverter-defibrillators (ICDs). The trial followed them initially for burden of untreated nonsustained ventricular tachycardia (VT) or events treated with anti-tachycardia pacing. Then it randomly assigned those who experienced a first appropriate ICD shock to either immediate VT ablation or standard care. The latter included ablation on next occurrence of arrhythmic storm.

Investigational oral factor XIa inhibitors, viewed by many as potentially safer as anticoagulants than contemporary oral inhibitors of factor Xa, are now on the scene and include milvexian (Bristol-Myers Squibb/Janssen) and, lately, asundexian (BAY 2433334; Bayer). The latter agent was compared to the factor Xa inhibitor apixaban (Eliquis) in 753 patients with AF in the phase 2 PACIFIC-AF trial, which looked at the newer drug’s safety and optimal dosing.

Also on the bill: a long-term follow-up of the mAFA-2 (Mobile AF Application 2) extension study, which explored the value of a smartphone-based atrial fibrillation (AF) screening app for improving risk of AF-related events; a presentation billed as “Residual Leaks Post Left Atrial Appendage Occlusion”; and one that declares “low rates of guideline-directed care” to be “associated with higher mortality” in patients with pacemakers or ICDs.
 

Monday, April 4, 8:30 a.m.–9:45 a.m. LBCT IV

This session is to open with the PROTECT trial, which sought to determine whether perioperative “aggressive warming” may be cardioprotective in patients with CV risk factors undergoing noncardiac surgery. Its estimated 5,100 patients were randomly assigned to a procedure that achieves normothermia, that is 37° C (98.6° F), vs. standard care in which patients’ core temperature may decline to no further than 35.5° C (95.9° F).

Next on the list are a second POISE-3 comparison of BP-control strategies comparing hypotension avoidance vs. hypertension avoidance in patients undergoing noncardiac surgery; the pivotal CLASP 2 TR trial of patients with symptomatic tricuspid regurgitation on optimal medical therapy with vs. without treatment with the Edwards PASCAL Transcatheter Repair System; and one said to provide “insights from the Corevalve US Pivotal and SURTAVI trials” on 5-year incidence, timing, and predictors of hemodynamic valve deterioration transcatheter and surgical aortic bioprostheses.”

Rounding out the block of presentations: the ADAPT-TAVR comparison of the factor Xa inhibitor edoxaban (Lixiana) to dual-antiplatelet therapy for prevention of leaflet thrombosis after successful transcatheter aortic valve replacement (TAVR). The 235-patient trial was conducted at five centers in South Korea, Hong Kong, and Taiwan.
 

Monday, April 4, 11:00–12:15 p.m. LBCT V

This session includes the FLAVOUR randomized comparison of PCI guided by either FFR or intravascular ultrasound (IVUS) in 1,700 patients with 40%-70% stenoses. The patients from centers in China and South Korea were followed for death from any cause, MI, or any repeat revascularization at 24 months.

Also scheduled: the 2-year report on 4,000 patients with ST-segment elevation MI (STEMI) in the ACC-sponsored quality improvement program GHATI (Global Heart Attack Treatment Initiative); the GIPS-4 myocardial protection study of an estimated 380 patients with STEMI assigned to receive pre- and post-PCI infusions of sodium thiosulfate or placebo, with infarct size at 4 months as the primary endpoint; and a randomized test of an arrhythmia-monitoring implant for influence on clinical outcomes in 802 patients with a history of MI but no pacemaker or ICD indication, called BIO-GUARD-MI,

Last in the session: the Chocolate Touch Study of peripheral-artery angioplasty using a drug-coated balloon (DCB) with a confectionery name that treats lesions not with theobromine, but the antiproliferative mainstay paclitaxel.

The randomized comparison of the Chocolate Touch DCB (TriReme Medical) and the more established Lutonix DCB (Bard) assigned a projected 585 patients with symptomatic peripheral vascular disease to treatment of superficial femoral or popliteal artery lesions with one of the two paclitaxel-coated balloon catheters.
 

Monday, April 4, 12:45–2 p.m. Featured Clinical Research III. Room 143A 

The final session features five subgroup analyses or other updates from trials that have already reported their primary outcomes. Among them is the SPYRAL HTN-ON MED trial, which helped to revitalize hopes for renal denervation therapy as a catheter-based treatment for drug-resistant hypertension by showing significant effects on both systolic and diastolic blood pressure. The new data follow the trial’s more than 400 patients out to 3 years.

There is also a symptom and quality-of-life analysis from the 530-patient EMPULSE trial of 530 patients with stabilized acute HF assigned in-hospital to start on empagliflozin (Jardiance) or placebo. The trial made a splash last year when it reported a significant improvement in risk for death or HF rehospitalization for its patients put on the SGLT2 inhibitor.

A secondary analysis from CANTOS is also featured; the trial had randomly assigned more than 10,000 patients with recent acute MI and elevated C-reactive protein (CRP) levels to receive or not receive the anti-inflammatory canakinumab (Ilaris). Those assigned to active therapy showed benefits for a range of outcomes, including CV mortality and stroke, but no decreases in cholesterol levels. Billing for the new CANTOS analysis promises insights on the “differential impact of residual inflammatory risk and residual cholesterol risk among atherosclerosis patients with and without chronic kidney disease.”

The session also features “trends and final results” from the NACMI (North American COVID-19 Myocardial Infarction) registry, which had shown excellent primary-PCI results without compromise of door-to-balloon times in patients with confirmed SARS-CoV-2 infection; and a FIDELITY analysis of cardiorenal endpoints by history of CV disease in the study’s more than 13,000 patients with diabetes and CKD assigned to placebo or finerenone (Kerendia), a mineralocorticoid receptor antagonist.

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

Regardless of the pandemic’s sometimes mercurial behavior, the cardiology community appears set to reclaim valued traditions perhaps taken for granted in the pre-COVID era.

They include the bustling scientific congress and its myriad educational and networking prospects, along with pleiotropic effects like unplanned reunions with colleagues and catching up face-to-face with old friends.

That seems evident in the growing number of registrants for live attendance at at the annual scientific sessions of the American College of Cardiology, set for this Saturday through Monday in Washington as well as virtually, for a global reach that was unattainable in the pre-COVID era.

Registrations had hit the 11,000 mark and were picking up speed in recent weeks, ACC 2022 cochair Pamela B. Morris, MD, Medical University of South Carolina, Charleston, said at a mid-March presentation to the media.

They had reached about 12,880 and were still climbing a week before the conference, the ACC confirmed to this news organization. By then the professional registration had surpassed 9,900, of whom more than two-thirds reported plans to attend in person.

Dr. Morris said there had been 117 international submissions for what turned out to be 39 coveted spots on the meeting’s Late-Breaking Clinical Trial (LBCT) and Featured Clinical Research agenda spread across eight separate sessions.

On-site participants at the Walter E. Washington Convention Center should head for the Main Tent in Hall D for all LBCT presentations; venues for the Featured Clinical Research sessions are as noted below. Their real-time virtual equivalents will reside on the online platform’s Hot Topics channel. All noted session times are Eastern Daylight Time.
 

Saturday, April 2, 9:30 a.m.–10:30 a.m. Joint American College of Cardiology/Journal of the American College of Cardiology LBCT (I)

Leading off the conference’s first LBCT session, the randomized VALOR-HCM trial explored whether 16 weeks of mavacamten (MyoKardia) could help patients with severe obstructive hypertrophic cardiomyopathy (HCM) avoid septal reduction therapy, either surgical or by alcohol ablation.

The 22-center VALOR-HCM trial with an estimated enrollment of 100 follows EXPLORER-HCM, which in 2020 suggested the novel myosin-inhibiting agent could improve symptoms, exercise capacity, cardiac remodeling, and quality of life in such patients.

Simply advising people with heart failure (HF) to consume less salt is one thing, but it’s another to show them clinical trial evidence that it might help keep them out of the hospital. The SODIUM-HF (Study of Dietary Intervention Under 100 mmol in Heart Failure) study, conducted at 27 sites in six countries, sought to provide that evidence.

The trial randomly assigned 1,000 patients with NYHA class 2-3 HF to consume no more than 1,500 mg/day in sodium or to receive standard advice to limit sodium intake, and followed them for a year for the endpoint of death from any cause, cardiovascular (CV) hospitalization, or CV emergency department visit.

SODIUM-HF “may provide a rigorous evidence base for sodium restriction in patients with heart failure and may truly change our practice and how we recommend dietary modification,” ACC 2022 vice chair Douglas E. Drachman, MD, Massachusetts General Hospital, Boston, said at the media presentation.

In the same session, the CHAP (Chronic Hypertension and Pregnancy) study explored whether blood pressure (BP) control in pregnant women with new or untreated chronic hypertension could help avert preeclampsia, poor fetal outcomes, and other adverse events.

CHAP assigned about 2,400 women to receive either stepwise antihypertensive therapy to a BP goal of 140/90 mm Hg or lower or no such meds unless their BP reached or exceeded 160/105 mm Hg. Stepwise therapy featured either labetalol or extended-release nifedipine to start, the other agent added as necessary.

The LBCT block also includes the POISE-3 (Perioperative Ischemic Evaluation-3) comparison of the hemostatic agent tranexamic acid vs. placebo in nearly 10,000 patients undergoing noncardiac surgery. A separate randomization of the same cohort, to be reported at a Monday LBCT session, compared pre- and perioperative BP-control strategies.
 

Saturday, April 2, 12:00 p.m.–1:15 p.m. Featured Clinical Research I. Room 143A

This session features a subgroup analysis by age from the REVERSE-IT trial, which had previously showcased the monoclonal antibody bentracimab (PhaseBio Pharmaceuticals) for its ability to reverse the antiplatelet effects of ticagrelor.

REVERSE-IT is accompanied on the schedule by several secondary-endpoint presentations from trials whose primary outcomes have already been presented at meetings or in the journals.

They include the SCORED trial of sotagliflozin in patients with diabetes and chronic kidney disease (CKD); COMPLETE, which explored complete revascularization of multivessel coronary disease at primary stenting; and the FAME-3 comparison of coronary bypass surgery (CABG) vs. percutaneous coronary intervention (PCI) guided by fractional flow reserve (FFR) readings.

The session is to conclude with EDIT-CMD, which was a small, randomized assessment of diltiazem for improving microvascular dysfunction in patients with chronic angina despite nonobstructive coronary disease.
 

Sunday, April 3, 8:00 a.m.–9:15 a.m. Joint American College of Cardiology/Journal of the American Medical Association LBCT (II)

The SuperWIN (Supermarket Web Intervention) study tested an innovative strategy for community-based promotion of healthy lifestyle choices: point-of-purchase dietary education for grocery shoppers with an online instructional component, and follow-up to determine whether it influenced future food choices.

“Dietary interventions are notoriously difficult for us to implement, let alone to study scientifically,” Dr. Drachman observed. “So we think that there may be opportunity for dietary interventions to be best implemented at grocery stores where people are doing their shopping for food.”

SuperWIN compared supermarket shoppers with at least one CV risk factor who participated in the education intervention to a nonintervention control group for any changes in their DASH scores. The scores reflected consistency with the venerable DASH diet based on participants’ food purchases over 3 months.

In the same session, the MITIGATE trial explored whether daily administration of icosapent ethyl (Vascepa) might cut the risk of upper respiratory infection (especially from SARS-CoV-2 or seasonal influenza virus) in persons 50 or older with a history of clinical coronary, neurovascular, or peripheral vascular disease or revascularization. The trial has an estimated enrollment of 39,600.

Accompanying SuperWIN and MITIGATE are studies of several dyslipidemia drugs, including the discontinued antisense agent vupanorsen (Pfizer), as tested in TRANSLATE-TIMI 70;  the PCSK9 inhibitor alirocumab (Praluent), explored for its effects on coronary plaque volume and composition in the PACMAN-AMI trial; and the APOLLO trial, a phase 1 evaluation of SLN360 (Silence Therapeutics), a short interfering ribonucleic acid (siRNA) that suppresses the molecular machinery in the liver that produces lipoprotein(a), or Lp(a).

The 32-patient APOLLO trial’s recently released top-line results suggested that SLN360 at varying dosages reduced Lp(a) levels by about one-half to more than 90%. Although elevated Lp(a) is known to track with CV risk, it remains to be shown whether dropping Lp(a) levels pharmacologically is protective.
 

Sunday, April 3, 9:45 a.m.–11:00 a.m. Joint American College of Cardiology/New England Journal of Medicine LBCT (III)

The meeting’s all-HF late-breaker session includes the METEORIC-HF trial, which compared the myotropic agent omecamtiv mecarbil (Cytokinetics) against placebo for effects on exercise performance over 20 weeks. The trial entered 276 patients with HF with reduced ejection fraction (HFrEF) and reduced peak VO₂.

The GALACTIC-HF trial had previously suggested that the drug improved the risk of HF-related events or CV death in more than 8000 patients with HFrEF, those with the lowest ejection fractions benefiting the most.

This block of trials also features DIAMOND, the latest trial with a gemologic name to look at the potassium sequestrant patiromer (Veltassa) for any protection against hyperkalemia, a familiar side effect of renin-angiotensin-aldosterone inhibitors. DIAMOND tested patiromer in 878 patients with HFrEF who were on beta-blockers and other HF-appropriate medications and had a history of drug-associated hyperkalemia.

Previously, the AMBER trial of patients with CKD or refractory hypertension on spironolactone had suggested the drug might be protective enough against hyperkalemia to allow higher and more consistent dosing of BP-lowering agents.

Also in the session: the randomized IVVE (Influenza Vaccine to Prevent Adverse Vascular Events) trial, with an estimated 5,000 patients with HF in Africa, Asia, and the Middle East; PROMPT-HF, with a projected 1,310 HF patients and billed as a cluster-randomized pragmatic trial of a strategy for improving guideline-directed outpatient medical therapy; and MAVA-LTE, the long-term extension study of an estimated 310 patients who were in the MAVERICK-HCM and EXPLORER-HCM mavacamten trials.
 

Sunday, April 3, 12:15–1:30 p.m. Featured Clinical Research II. Main Tent, Hall D

The arrhythmia-centric session includes PARTITA, with its estimated 590 patients with primary- or secondary-prevention implantable cardioverter-defibrillators (ICDs). The trial followed them initially for burden of untreated nonsustained ventricular tachycardia (VT) or events treated with anti-tachycardia pacing. Then it randomly assigned those who experienced a first appropriate ICD shock to either immediate VT ablation or standard care. The latter included ablation on next occurrence of arrhythmic storm.

Investigational oral factor XIa inhibitors, viewed by many as potentially safer as anticoagulants than contemporary oral inhibitors of factor Xa, are now on the scene and include milvexian (Bristol-Myers Squibb/Janssen) and, lately, asundexian (BAY 2433334; Bayer). The latter agent was compared to the factor Xa inhibitor apixaban (Eliquis) in 753 patients with AF in the phase 2 PACIFIC-AF trial, which looked at the newer drug’s safety and optimal dosing.

Also on the bill: a long-term follow-up of the mAFA-2 (Mobile AF Application 2) extension study, which explored the value of a smartphone-based atrial fibrillation (AF) screening app for improving risk of AF-related events; a presentation billed as “Residual Leaks Post Left Atrial Appendage Occlusion”; and one that declares “low rates of guideline-directed care” to be “associated with higher mortality” in patients with pacemakers or ICDs.
 

Monday, April 4, 8:30 a.m.–9:45 a.m. LBCT IV

This session is to open with the PROTECT trial, which sought to determine whether perioperative “aggressive warming” may be cardioprotective in patients with CV risk factors undergoing noncardiac surgery. Its estimated 5,100 patients were randomly assigned to a procedure that achieves normothermia, that is 37° C (98.6° F), vs. standard care in which patients’ core temperature may decline to no further than 35.5° C (95.9° F).

Next on the list are a second POISE-3 comparison of BP-control strategies comparing hypotension avoidance vs. hypertension avoidance in patients undergoing noncardiac surgery; the pivotal CLASP 2 TR trial of patients with symptomatic tricuspid regurgitation on optimal medical therapy with vs. without treatment with the Edwards PASCAL Transcatheter Repair System; and one said to provide “insights from the Corevalve US Pivotal and SURTAVI trials” on 5-year incidence, timing, and predictors of hemodynamic valve deterioration transcatheter and surgical aortic bioprostheses.”

Rounding out the block of presentations: the ADAPT-TAVR comparison of the factor Xa inhibitor edoxaban (Lixiana) to dual-antiplatelet therapy for prevention of leaflet thrombosis after successful transcatheter aortic valve replacement (TAVR). The 235-patient trial was conducted at five centers in South Korea, Hong Kong, and Taiwan.
 

Monday, April 4, 11:00–12:15 p.m. LBCT V

This session includes the FLAVOUR randomized comparison of PCI guided by either FFR or intravascular ultrasound (IVUS) in 1,700 patients with 40%-70% stenoses. The patients from centers in China and South Korea were followed for death from any cause, MI, or any repeat revascularization at 24 months.

Also scheduled: the 2-year report on 4,000 patients with ST-segment elevation MI (STEMI) in the ACC-sponsored quality improvement program GHATI (Global Heart Attack Treatment Initiative); the GIPS-4 myocardial protection study of an estimated 380 patients with STEMI assigned to receive pre- and post-PCI infusions of sodium thiosulfate or placebo, with infarct size at 4 months as the primary endpoint; and a randomized test of an arrhythmia-monitoring implant for influence on clinical outcomes in 802 patients with a history of MI but no pacemaker or ICD indication, called BIO-GUARD-MI,

Last in the session: the Chocolate Touch Study of peripheral-artery angioplasty using a drug-coated balloon (DCB) with a confectionery name that treats lesions not with theobromine, but the antiproliferative mainstay paclitaxel.

The randomized comparison of the Chocolate Touch DCB (TriReme Medical) and the more established Lutonix DCB (Bard) assigned a projected 585 patients with symptomatic peripheral vascular disease to treatment of superficial femoral or popliteal artery lesions with one of the two paclitaxel-coated balloon catheters.
 

Monday, April 4, 12:45–2 p.m. Featured Clinical Research III. Room 143A 

The final session features five subgroup analyses or other updates from trials that have already reported their primary outcomes. Among them is the SPYRAL HTN-ON MED trial, which helped to revitalize hopes for renal denervation therapy as a catheter-based treatment for drug-resistant hypertension by showing significant effects on both systolic and diastolic blood pressure. The new data follow the trial’s more than 400 patients out to 3 years.

There is also a symptom and quality-of-life analysis from the 530-patient EMPULSE trial of 530 patients with stabilized acute HF assigned in-hospital to start on empagliflozin (Jardiance) or placebo. The trial made a splash last year when it reported a significant improvement in risk for death or HF rehospitalization for its patients put on the SGLT2 inhibitor.

A secondary analysis from CANTOS is also featured; the trial had randomly assigned more than 10,000 patients with recent acute MI and elevated C-reactive protein (CRP) levels to receive or not receive the anti-inflammatory canakinumab (Ilaris). Those assigned to active therapy showed benefits for a range of outcomes, including CV mortality and stroke, but no decreases in cholesterol levels. Billing for the new CANTOS analysis promises insights on the “differential impact of residual inflammatory risk and residual cholesterol risk among atherosclerosis patients with and without chronic kidney disease.”

The session also features “trends and final results” from the NACMI (North American COVID-19 Myocardial Infarction) registry, which had shown excellent primary-PCI results without compromise of door-to-balloon times in patients with confirmed SARS-CoV-2 infection; and a FIDELITY analysis of cardiorenal endpoints by history of CV disease in the study’s more than 13,000 patients with diabetes and CKD assigned to placebo or finerenone (Kerendia), a mineralocorticoid receptor antagonist.

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

Regardless of the pandemic’s sometimes mercurial behavior, the cardiology community appears set to reclaim valued traditions perhaps taken for granted in the pre-COVID era.

They include the bustling scientific congress and its myriad educational and networking prospects, along with pleiotropic effects like unplanned reunions with colleagues and catching up face-to-face with old friends.

That seems evident in the growing number of registrants for live attendance at at the annual scientific sessions of the American College of Cardiology, set for this Saturday through Monday in Washington as well as virtually, for a global reach that was unattainable in the pre-COVID era.

Registrations had hit the 11,000 mark and were picking up speed in recent weeks, ACC 2022 cochair Pamela B. Morris, MD, Medical University of South Carolina, Charleston, said at a mid-March presentation to the media.

They had reached about 12,880 and were still climbing a week before the conference, the ACC confirmed to this news organization. By then the professional registration had surpassed 9,900, of whom more than two-thirds reported plans to attend in person.

Dr. Morris said there had been 117 international submissions for what turned out to be 39 coveted spots on the meeting’s Late-Breaking Clinical Trial (LBCT) and Featured Clinical Research agenda spread across eight separate sessions.

On-site participants at the Walter E. Washington Convention Center should head for the Main Tent in Hall D for all LBCT presentations; venues for the Featured Clinical Research sessions are as noted below. Their real-time virtual equivalents will reside on the online platform’s Hot Topics channel. All noted session times are Eastern Daylight Time.
 

Saturday, April 2, 9:30 a.m.–10:30 a.m. Joint American College of Cardiology/Journal of the American College of Cardiology LBCT (I)

Leading off the conference’s first LBCT session, the randomized VALOR-HCM trial explored whether 16 weeks of mavacamten (MyoKardia) could help patients with severe obstructive hypertrophic cardiomyopathy (HCM) avoid septal reduction therapy, either surgical or by alcohol ablation.

The 22-center VALOR-HCM trial with an estimated enrollment of 100 follows EXPLORER-HCM, which in 2020 suggested the novel myosin-inhibiting agent could improve symptoms, exercise capacity, cardiac remodeling, and quality of life in such patients.

Simply advising people with heart failure (HF) to consume less salt is one thing, but it’s another to show them clinical trial evidence that it might help keep them out of the hospital. The SODIUM-HF (Study of Dietary Intervention Under 100 mmol in Heart Failure) study, conducted at 27 sites in six countries, sought to provide that evidence.

The trial randomly assigned 1,000 patients with NYHA class 2-3 HF to consume no more than 1,500 mg/day in sodium or to receive standard advice to limit sodium intake, and followed them for a year for the endpoint of death from any cause, cardiovascular (CV) hospitalization, or CV emergency department visit.

SODIUM-HF “may provide a rigorous evidence base for sodium restriction in patients with heart failure and may truly change our practice and how we recommend dietary modification,” ACC 2022 vice chair Douglas E. Drachman, MD, Massachusetts General Hospital, Boston, said at the media presentation.

In the same session, the CHAP (Chronic Hypertension and Pregnancy) study explored whether blood pressure (BP) control in pregnant women with new or untreated chronic hypertension could help avert preeclampsia, poor fetal outcomes, and other adverse events.

CHAP assigned about 2,400 women to receive either stepwise antihypertensive therapy to a BP goal of 140/90 mm Hg or lower or no such meds unless their BP reached or exceeded 160/105 mm Hg. Stepwise therapy featured either labetalol or extended-release nifedipine to start, the other agent added as necessary.

The LBCT block also includes the POISE-3 (Perioperative Ischemic Evaluation-3) comparison of the hemostatic agent tranexamic acid vs. placebo in nearly 10,000 patients undergoing noncardiac surgery. A separate randomization of the same cohort, to be reported at a Monday LBCT session, compared pre- and perioperative BP-control strategies.
 

Saturday, April 2, 12:00 p.m.–1:15 p.m. Featured Clinical Research I. Room 143A

This session features a subgroup analysis by age from the REVERSE-IT trial, which had previously showcased the monoclonal antibody bentracimab (PhaseBio Pharmaceuticals) for its ability to reverse the antiplatelet effects of ticagrelor.

REVERSE-IT is accompanied on the schedule by several secondary-endpoint presentations from trials whose primary outcomes have already been presented at meetings or in the journals.

They include the SCORED trial of sotagliflozin in patients with diabetes and chronic kidney disease (CKD); COMPLETE, which explored complete revascularization of multivessel coronary disease at primary stenting; and the FAME-3 comparison of coronary bypass surgery (CABG) vs. percutaneous coronary intervention (PCI) guided by fractional flow reserve (FFR) readings.

The session is to conclude with EDIT-CMD, which was a small, randomized assessment of diltiazem for improving microvascular dysfunction in patients with chronic angina despite nonobstructive coronary disease.
 

Sunday, April 3, 8:00 a.m.–9:15 a.m. Joint American College of Cardiology/Journal of the American Medical Association LBCT (II)

The SuperWIN (Supermarket Web Intervention) study tested an innovative strategy for community-based promotion of healthy lifestyle choices: point-of-purchase dietary education for grocery shoppers with an online instructional component, and follow-up to determine whether it influenced future food choices.

“Dietary interventions are notoriously difficult for us to implement, let alone to study scientifically,” Dr. Drachman observed. “So we think that there may be opportunity for dietary interventions to be best implemented at grocery stores where people are doing their shopping for food.”

SuperWIN compared supermarket shoppers with at least one CV risk factor who participated in the education intervention to a nonintervention control group for any changes in their DASH scores. The scores reflected consistency with the venerable DASH diet based on participants’ food purchases over 3 months.

In the same session, the MITIGATE trial explored whether daily administration of icosapent ethyl (Vascepa) might cut the risk of upper respiratory infection (especially from SARS-CoV-2 or seasonal influenza virus) in persons 50 or older with a history of clinical coronary, neurovascular, or peripheral vascular disease or revascularization. The trial has an estimated enrollment of 39,600.

Accompanying SuperWIN and MITIGATE are studies of several dyslipidemia drugs, including the discontinued antisense agent vupanorsen (Pfizer), as tested in TRANSLATE-TIMI 70;  the PCSK9 inhibitor alirocumab (Praluent), explored for its effects on coronary plaque volume and composition in the PACMAN-AMI trial; and the APOLLO trial, a phase 1 evaluation of SLN360 (Silence Therapeutics), a short interfering ribonucleic acid (siRNA) that suppresses the molecular machinery in the liver that produces lipoprotein(a), or Lp(a).

The 32-patient APOLLO trial’s recently released top-line results suggested that SLN360 at varying dosages reduced Lp(a) levels by about one-half to more than 90%. Although elevated Lp(a) is known to track with CV risk, it remains to be shown whether dropping Lp(a) levels pharmacologically is protective.
 

Sunday, April 3, 9:45 a.m.–11:00 a.m. Joint American College of Cardiology/New England Journal of Medicine LBCT (III)

The meeting’s all-HF late-breaker session includes the METEORIC-HF trial, which compared the myotropic agent omecamtiv mecarbil (Cytokinetics) against placebo for effects on exercise performance over 20 weeks. The trial entered 276 patients with HF with reduced ejection fraction (HFrEF) and reduced peak VO₂.

The GALACTIC-HF trial had previously suggested that the drug improved the risk of HF-related events or CV death in more than 8000 patients with HFrEF, those with the lowest ejection fractions benefiting the most.

This block of trials also features DIAMOND, the latest trial with a gemologic name to look at the potassium sequestrant patiromer (Veltassa) for any protection against hyperkalemia, a familiar side effect of renin-angiotensin-aldosterone inhibitors. DIAMOND tested patiromer in 878 patients with HFrEF who were on beta-blockers and other HF-appropriate medications and had a history of drug-associated hyperkalemia.

Previously, the AMBER trial of patients with CKD or refractory hypertension on spironolactone had suggested the drug might be protective enough against hyperkalemia to allow higher and more consistent dosing of BP-lowering agents.

Also in the session: the randomized IVVE (Influenza Vaccine to Prevent Adverse Vascular Events) trial, with an estimated 5,000 patients with HF in Africa, Asia, and the Middle East; PROMPT-HF, with a projected 1,310 HF patients and billed as a cluster-randomized pragmatic trial of a strategy for improving guideline-directed outpatient medical therapy; and MAVA-LTE, the long-term extension study of an estimated 310 patients who were in the MAVERICK-HCM and EXPLORER-HCM mavacamten trials.
 

Sunday, April 3, 12:15–1:30 p.m. Featured Clinical Research II. Main Tent, Hall D

The arrhythmia-centric session includes PARTITA, with its estimated 590 patients with primary- or secondary-prevention implantable cardioverter-defibrillators (ICDs). The trial followed them initially for burden of untreated nonsustained ventricular tachycardia (VT) or events treated with anti-tachycardia pacing. Then it randomly assigned those who experienced a first appropriate ICD shock to either immediate VT ablation or standard care. The latter included ablation on next occurrence of arrhythmic storm.

Investigational oral factor XIa inhibitors, viewed by many as potentially safer as anticoagulants than contemporary oral inhibitors of factor Xa, are now on the scene and include milvexian (Bristol-Myers Squibb/Janssen) and, lately, asundexian (BAY 2433334; Bayer). The latter agent was compared to the factor Xa inhibitor apixaban (Eliquis) in 753 patients with AF in the phase 2 PACIFIC-AF trial, which looked at the newer drug’s safety and optimal dosing.

Also on the bill: a long-term follow-up of the mAFA-2 (Mobile AF Application 2) extension study, which explored the value of a smartphone-based atrial fibrillation (AF) screening app for improving risk of AF-related events; a presentation billed as “Residual Leaks Post Left Atrial Appendage Occlusion”; and one that declares “low rates of guideline-directed care” to be “associated with higher mortality” in patients with pacemakers or ICDs.
 

Monday, April 4, 8:30 a.m.–9:45 a.m. LBCT IV

This session is to open with the PROTECT trial, which sought to determine whether perioperative “aggressive warming” may be cardioprotective in patients with CV risk factors undergoing noncardiac surgery. Its estimated 5,100 patients were randomly assigned to a procedure that achieves normothermia, that is 37° C (98.6° F), vs. standard care in which patients’ core temperature may decline to no further than 35.5° C (95.9° F).

Next on the list are a second POISE-3 comparison of BP-control strategies comparing hypotension avoidance vs. hypertension avoidance in patients undergoing noncardiac surgery; the pivotal CLASP 2 TR trial of patients with symptomatic tricuspid regurgitation on optimal medical therapy with vs. without treatment with the Edwards PASCAL Transcatheter Repair System; and one said to provide “insights from the Corevalve US Pivotal and SURTAVI trials” on 5-year incidence, timing, and predictors of hemodynamic valve deterioration transcatheter and surgical aortic bioprostheses.”

Rounding out the block of presentations: the ADAPT-TAVR comparison of the factor Xa inhibitor edoxaban (Lixiana) to dual-antiplatelet therapy for prevention of leaflet thrombosis after successful transcatheter aortic valve replacement (TAVR). The 235-patient trial was conducted at five centers in South Korea, Hong Kong, and Taiwan.
 

Monday, April 4, 11:00–12:15 p.m. LBCT V

This session includes the FLAVOUR randomized comparison of PCI guided by either FFR or intravascular ultrasound (IVUS) in 1,700 patients with 40%-70% stenoses. The patients from centers in China and South Korea were followed for death from any cause, MI, or any repeat revascularization at 24 months.

Also scheduled: the 2-year report on 4,000 patients with ST-segment elevation MI (STEMI) in the ACC-sponsored quality improvement program GHATI (Global Heart Attack Treatment Initiative); the GIPS-4 myocardial protection study of an estimated 380 patients with STEMI assigned to receive pre- and post-PCI infusions of sodium thiosulfate or placebo, with infarct size at 4 months as the primary endpoint; and a randomized test of an arrhythmia-monitoring implant for influence on clinical outcomes in 802 patients with a history of MI but no pacemaker or ICD indication, called BIO-GUARD-MI,

Last in the session: the Chocolate Touch Study of peripheral-artery angioplasty using a drug-coated balloon (DCB) with a confectionery name that treats lesions not with theobromine, but the antiproliferative mainstay paclitaxel.

The randomized comparison of the Chocolate Touch DCB (TriReme Medical) and the more established Lutonix DCB (Bard) assigned a projected 585 patients with symptomatic peripheral vascular disease to treatment of superficial femoral or popliteal artery lesions with one of the two paclitaxel-coated balloon catheters.
 

Monday, April 4, 12:45–2 p.m. Featured Clinical Research III. Room 143A 

The final session features five subgroup analyses or other updates from trials that have already reported their primary outcomes. Among them is the SPYRAL HTN-ON MED trial, which helped to revitalize hopes for renal denervation therapy as a catheter-based treatment for drug-resistant hypertension by showing significant effects on both systolic and diastolic blood pressure. The new data follow the trial’s more than 400 patients out to 3 years.

There is also a symptom and quality-of-life analysis from the 530-patient EMPULSE trial of 530 patients with stabilized acute HF assigned in-hospital to start on empagliflozin (Jardiance) or placebo. The trial made a splash last year when it reported a significant improvement in risk for death or HF rehospitalization for its patients put on the SGLT2 inhibitor.

A secondary analysis from CANTOS is also featured; the trial had randomly assigned more than 10,000 patients with recent acute MI and elevated C-reactive protein (CRP) levels to receive or not receive the anti-inflammatory canakinumab (Ilaris). Those assigned to active therapy showed benefits for a range of outcomes, including CV mortality and stroke, but no decreases in cholesterol levels. Billing for the new CANTOS analysis promises insights on the “differential impact of residual inflammatory risk and residual cholesterol risk among atherosclerosis patients with and without chronic kidney disease.”

The session also features “trends and final results” from the NACMI (North American COVID-19 Myocardial Infarction) registry, which had shown excellent primary-PCI results without compromise of door-to-balloon times in patients with confirmed SARS-CoV-2 infection; and a FIDELITY analysis of cardiorenal endpoints by history of CV disease in the study’s more than 13,000 patients with diabetes and CKD assigned to placebo or finerenone (Kerendia), a mineralocorticoid receptor antagonist.

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

A trio of analyses based on the prospective UK Biobank cohort suggest that regular coffee drinking, especially a daily intake of two to three cups, is not only safe for the heart but may be cardioprotective.

People without cardiovascular disease with that level of coffee intake, compared with those who weren’t coffee drinkers, showed significantly reduced risks of death and a range of CVD endpoints, the reductions ranging from 8% to 15% over about 10 years.

S_Bachstroem/Getty Images

In a separate analysis, participants with CVD at baseline also showed significantly improved survival with coffee intake of two to three cups daily, and no increased risk of arrhythmias.

In a third cut of the UK Biobank data, the clinical benefits of the same level of coffee drinking were observed whether the coffee consumed was the “instant” kind for reconstitution with water or brewed from ground whole beans.

Some clinicians advise their patients that coffee drinking may trigger or worsen some types of heart disease, observed Peter M. Kistler, MD, the Alfred Hospital and Baker Heart and Diabetes Institute, Melbourne. But the current analyses suggest that “daily coffee intake should not be discouraged, but rather considered part of a healthy diet.”

Dr. Kistler and colleagues are slated to present the three UK Biobank cohort analyses separately at the annual scientific sessions of the American College of Cardiology. He presented some of the data and commented on them at a press conference held in advance of the meeting.

UK Biobank study participants, who were on average in their late 50s, reported their level of daily coffee intake and preferred type of coffee on questionnaires. The researchers observed generally U-shaped relationships between daily number of cups of coffee and incident CVD, heart failure, coronary heart disease (CHD), stroke, atrial fibrillation, any arrhythmia, and death over 10 years.

“This is music to I think many of our patients’ ears, as well as many in the field of cardiology, as those of us that wake up early and stay up late in the hospital consume a fair amount of coffee,” observed Katie Berlacher, MD, associate chief of cardiology education at the University of Pittsburgh Medical Center.

The analyses were based on a large cohort and saw a consistent pattern for several cardiovascular outcomes, observed Dr. Berlacher, incoming ACC scientific session vice chair.

The findings could have a “profound impact in daily clinical care, as many of us caution patients who have or are at risk for having CV[D] against coffee consumption,” she told this news organization by email.

“These studies suggest that we do not have objective evidence to caution nor ask patients to stop drinking coffee, including patients who have arrhythmias.”

But importantly, “these studies are not causal,” she added. “So we cannot go so far as to recommend coffee consumption, though one could posit that randomized prospective studies should be done to elucidate causation.”

Coffee, Dr. Kistler observed, “is the most common cognitive enhancer. It wakes you up, makes you mentally sharper, and it’s a very important component of many people’s daily lives. The take-home message is that clinicians should NOT advise patients to stop drinking coffee up to three cups per day.”

Also, “in non–coffee drinkers, we do not have the data to suggest they should start drinking coffee,” he said. Moreover, people shouldn’t necessarily increase their coffee intake, particularly if it makes them feel anxious or uncomfortable.
 

Benefits with or without known heart disease

The researchers identified 382,535 participants in the UK Biobank cohort who were free of CVD at baseline. Their median age was 57, and 52% were women.

Those who reported regular daily intake of two to three cups of coffee, compared with those who were not coffee drinkers, showed significantly reduced risks of CVD (hazard ratio, 0.91; 95% confidence interval, 0.88-0.94), CHD (HR, 0.90; 95% CI, 0.87-0.93), heart failure (HR, 0.85; 95% CI, 0.81-0.90), arrhythmias (HR, 0.92; 95% CI, 0.88-0.95), and death from any cause over 10 years (HR, 0.86; 95% CI, 0.83-0.90) (P < .01 for all endpoints).

The risk of CVD death hit its lowest point at an intake of one cup per day (HR, 0.83; 95% CI, 0.75-0.93). The risk of stroke was lowest at less than one cup per day (HR, 0.85; 95% CI, 0.75-0.96).

A separate analysis found similar outcomes among a different subset of UK Biobank participants with recognized CVD at baseline. Among 34,279 such persons, those who drank two to three cups of coffee per day, compared with non–coffee drinkers, showed a reduced risk of death over 10 years (HR, 0.92; 95% CI, 0.86-0.99; P = .03).

Among the 24,111 persons diagnosed with arrhythmias at baseline, the lowest mortality risk was observed at one cup per day (HR, 0.85; 95% CI, 0.78-0.94; P < .01). Among those with atrial fibrillation or atrial flutter, one cup per day was associated with a mortality HR of 0.82 (95% CI, 0.73-0.93; P < .01).

In still another analysis of UK Biobank cohort, incident CVD and mortality during the 10-year follow-up was similarly reduced among participants who reported consumption of brewed ground coffee and, separately, instant coffee, compared with non–coffee drinkers. Decaffeinated coffee showed a mostly neutral or inconsistent effect on the clinical endpoints.

The lowest CVD risk was observed at two to three cups per day among those regularly drinking ground coffee (HR, 0.83; 95% CI, 0.79-0.87) and those predominantly taking instant coffee (HR, 0.91; 95% CI, 0.88-0.95).

Potential mechanisms, study limitations

“Caffeine blocks adenosine receptors, which may explain its potential mild antiarrhythmic properties,” Dr. Kistler said. “Regular coffee drinkers with supraventricular tachycardia coming to the emergency department often need higher adenosine doses to revert.”

Caffeine has a role in weight loss through inhibition of gut fatty acid absorption and increase in basal metabolic rate, Dr. Kistler added, and coffee has been associated with a significantly reduced risk of new-onset type 2 diabetes.

However, coffee beans contain more than 100 biologically active compounds, he noted. They include antioxidant polyphenols that reduce oxidative stress and modulate metabolism. Better survival with habitual coffee consumption may be related to improved endothelial function, circulating antioxidants, improved insulin sensitivity, or reduced inflammation, the researchers noted.

They acknowledged some limitations to the analyses. Cause and effect can’t be determined from the observational data. Also, a cup of coffee in the United Kingdom means about 200-250 mL of brew, but its actual caffeine content can vary from 90 mg to 250 mg. Also, data regarding added sugar or milk was lacking. And UK Biobank participants are predominantly White, so the findings may not be generalizable to other populations.

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

A trio of analyses based on the prospective UK Biobank cohort suggest that regular coffee drinking, especially a daily intake of two to three cups, is not only safe for the heart but may be cardioprotective.

People without cardiovascular disease with that level of coffee intake, compared with those who weren’t coffee drinkers, showed significantly reduced risks of death and a range of CVD endpoints, the reductions ranging from 8% to 15% over about 10 years.

S_Bachstroem/Getty Images

In a separate analysis, participants with CVD at baseline also showed significantly improved survival with coffee intake of two to three cups daily, and no increased risk of arrhythmias.

In a third cut of the UK Biobank data, the clinical benefits of the same level of coffee drinking were observed whether the coffee consumed was the “instant” kind for reconstitution with water or brewed from ground whole beans.

Some clinicians advise their patients that coffee drinking may trigger or worsen some types of heart disease, observed Peter M. Kistler, MD, the Alfred Hospital and Baker Heart and Diabetes Institute, Melbourne. But the current analyses suggest that “daily coffee intake should not be discouraged, but rather considered part of a healthy diet.”

Dr. Kistler and colleagues are slated to present the three UK Biobank cohort analyses separately at the annual scientific sessions of the American College of Cardiology. He presented some of the data and commented on them at a press conference held in advance of the meeting.

UK Biobank study participants, who were on average in their late 50s, reported their level of daily coffee intake and preferred type of coffee on questionnaires. The researchers observed generally U-shaped relationships between daily number of cups of coffee and incident CVD, heart failure, coronary heart disease (CHD), stroke, atrial fibrillation, any arrhythmia, and death over 10 years.

“This is music to I think many of our patients’ ears, as well as many in the field of cardiology, as those of us that wake up early and stay up late in the hospital consume a fair amount of coffee,” observed Katie Berlacher, MD, associate chief of cardiology education at the University of Pittsburgh Medical Center.

The analyses were based on a large cohort and saw a consistent pattern for several cardiovascular outcomes, observed Dr. Berlacher, incoming ACC scientific session vice chair.

The findings could have a “profound impact in daily clinical care, as many of us caution patients who have or are at risk for having CV[D] against coffee consumption,” she told this news organization by email.

“These studies suggest that we do not have objective evidence to caution nor ask patients to stop drinking coffee, including patients who have arrhythmias.”

But importantly, “these studies are not causal,” she added. “So we cannot go so far as to recommend coffee consumption, though one could posit that randomized prospective studies should be done to elucidate causation.”

Coffee, Dr. Kistler observed, “is the most common cognitive enhancer. It wakes you up, makes you mentally sharper, and it’s a very important component of many people’s daily lives. The take-home message is that clinicians should NOT advise patients to stop drinking coffee up to three cups per day.”

Also, “in non–coffee drinkers, we do not have the data to suggest they should start drinking coffee,” he said. Moreover, people shouldn’t necessarily increase their coffee intake, particularly if it makes them feel anxious or uncomfortable.
 

Benefits with or without known heart disease

The researchers identified 382,535 participants in the UK Biobank cohort who were free of CVD at baseline. Their median age was 57, and 52% were women.

Those who reported regular daily intake of two to three cups of coffee, compared with those who were not coffee drinkers, showed significantly reduced risks of CVD (hazard ratio, 0.91; 95% confidence interval, 0.88-0.94), CHD (HR, 0.90; 95% CI, 0.87-0.93), heart failure (HR, 0.85; 95% CI, 0.81-0.90), arrhythmias (HR, 0.92; 95% CI, 0.88-0.95), and death from any cause over 10 years (HR, 0.86; 95% CI, 0.83-0.90) (P < .01 for all endpoints).

The risk of CVD death hit its lowest point at an intake of one cup per day (HR, 0.83; 95% CI, 0.75-0.93). The risk of stroke was lowest at less than one cup per day (HR, 0.85; 95% CI, 0.75-0.96).

A separate analysis found similar outcomes among a different subset of UK Biobank participants with recognized CVD at baseline. Among 34,279 such persons, those who drank two to three cups of coffee per day, compared with non–coffee drinkers, showed a reduced risk of death over 10 years (HR, 0.92; 95% CI, 0.86-0.99; P = .03).

Among the 24,111 persons diagnosed with arrhythmias at baseline, the lowest mortality risk was observed at one cup per day (HR, 0.85; 95% CI, 0.78-0.94; P < .01). Among those with atrial fibrillation or atrial flutter, one cup per day was associated with a mortality HR of 0.82 (95% CI, 0.73-0.93; P < .01).

In still another analysis of UK Biobank cohort, incident CVD and mortality during the 10-year follow-up was similarly reduced among participants who reported consumption of brewed ground coffee and, separately, instant coffee, compared with non–coffee drinkers. Decaffeinated coffee showed a mostly neutral or inconsistent effect on the clinical endpoints.

The lowest CVD risk was observed at two to three cups per day among those regularly drinking ground coffee (HR, 0.83; 95% CI, 0.79-0.87) and those predominantly taking instant coffee (HR, 0.91; 95% CI, 0.88-0.95).

Potential mechanisms, study limitations

“Caffeine blocks adenosine receptors, which may explain its potential mild antiarrhythmic properties,” Dr. Kistler said. “Regular coffee drinkers with supraventricular tachycardia coming to the emergency department often need higher adenosine doses to revert.”

Caffeine has a role in weight loss through inhibition of gut fatty acid absorption and increase in basal metabolic rate, Dr. Kistler added, and coffee has been associated with a significantly reduced risk of new-onset type 2 diabetes.

However, coffee beans contain more than 100 biologically active compounds, he noted. They include antioxidant polyphenols that reduce oxidative stress and modulate metabolism. Better survival with habitual coffee consumption may be related to improved endothelial function, circulating antioxidants, improved insulin sensitivity, or reduced inflammation, the researchers noted.

They acknowledged some limitations to the analyses. Cause and effect can’t be determined from the observational data. Also, a cup of coffee in the United Kingdom means about 200-250 mL of brew, but its actual caffeine content can vary from 90 mg to 250 mg. Also, data regarding added sugar or milk was lacking. And UK Biobank participants are predominantly White, so the findings may not be generalizable to other populations.

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

A trio of analyses based on the prospective UK Biobank cohort suggest that regular coffee drinking, especially a daily intake of two to three cups, is not only safe for the heart but may be cardioprotective.

People without cardiovascular disease with that level of coffee intake, compared with those who weren’t coffee drinkers, showed significantly reduced risks of death and a range of CVD endpoints, the reductions ranging from 8% to 15% over about 10 years.

S_Bachstroem/Getty Images

In a separate analysis, participants with CVD at baseline also showed significantly improved survival with coffee intake of two to three cups daily, and no increased risk of arrhythmias.

In a third cut of the UK Biobank data, the clinical benefits of the same level of coffee drinking were observed whether the coffee consumed was the “instant” kind for reconstitution with water or brewed from ground whole beans.

Some clinicians advise their patients that coffee drinking may trigger or worsen some types of heart disease, observed Peter M. Kistler, MD, the Alfred Hospital and Baker Heart and Diabetes Institute, Melbourne. But the current analyses suggest that “daily coffee intake should not be discouraged, but rather considered part of a healthy diet.”

Dr. Kistler and colleagues are slated to present the three UK Biobank cohort analyses separately at the annual scientific sessions of the American College of Cardiology. He presented some of the data and commented on them at a press conference held in advance of the meeting.

UK Biobank study participants, who were on average in their late 50s, reported their level of daily coffee intake and preferred type of coffee on questionnaires. The researchers observed generally U-shaped relationships between daily number of cups of coffee and incident CVD, heart failure, coronary heart disease (CHD), stroke, atrial fibrillation, any arrhythmia, and death over 10 years.

“This is music to I think many of our patients’ ears, as well as many in the field of cardiology, as those of us that wake up early and stay up late in the hospital consume a fair amount of coffee,” observed Katie Berlacher, MD, associate chief of cardiology education at the University of Pittsburgh Medical Center.

The analyses were based on a large cohort and saw a consistent pattern for several cardiovascular outcomes, observed Dr. Berlacher, incoming ACC scientific session vice chair.

The findings could have a “profound impact in daily clinical care, as many of us caution patients who have or are at risk for having CV[D] against coffee consumption,” she told this news organization by email.

“These studies suggest that we do not have objective evidence to caution nor ask patients to stop drinking coffee, including patients who have arrhythmias.”

But importantly, “these studies are not causal,” she added. “So we cannot go so far as to recommend coffee consumption, though one could posit that randomized prospective studies should be done to elucidate causation.”

Coffee, Dr. Kistler observed, “is the most common cognitive enhancer. It wakes you up, makes you mentally sharper, and it’s a very important component of many people’s daily lives. The take-home message is that clinicians should NOT advise patients to stop drinking coffee up to three cups per day.”

Also, “in non–coffee drinkers, we do not have the data to suggest they should start drinking coffee,” he said. Moreover, people shouldn’t necessarily increase their coffee intake, particularly if it makes them feel anxious or uncomfortable.
 

Benefits with or without known heart disease

The researchers identified 382,535 participants in the UK Biobank cohort who were free of CVD at baseline. Their median age was 57, and 52% were women.

Those who reported regular daily intake of two to three cups of coffee, compared with those who were not coffee drinkers, showed significantly reduced risks of CVD (hazard ratio, 0.91; 95% confidence interval, 0.88-0.94), CHD (HR, 0.90; 95% CI, 0.87-0.93), heart failure (HR, 0.85; 95% CI, 0.81-0.90), arrhythmias (HR, 0.92; 95% CI, 0.88-0.95), and death from any cause over 10 years (HR, 0.86; 95% CI, 0.83-0.90) (P < .01 for all endpoints).

The risk of CVD death hit its lowest point at an intake of one cup per day (HR, 0.83; 95% CI, 0.75-0.93). The risk of stroke was lowest at less than one cup per day (HR, 0.85; 95% CI, 0.75-0.96).

A separate analysis found similar outcomes among a different subset of UK Biobank participants with recognized CVD at baseline. Among 34,279 such persons, those who drank two to three cups of coffee per day, compared with non–coffee drinkers, showed a reduced risk of death over 10 years (HR, 0.92; 95% CI, 0.86-0.99; P = .03).

Among the 24,111 persons diagnosed with arrhythmias at baseline, the lowest mortality risk was observed at one cup per day (HR, 0.85; 95% CI, 0.78-0.94; P < .01). Among those with atrial fibrillation or atrial flutter, one cup per day was associated with a mortality HR of 0.82 (95% CI, 0.73-0.93; P < .01).

In still another analysis of UK Biobank cohort, incident CVD and mortality during the 10-year follow-up was similarly reduced among participants who reported consumption of brewed ground coffee and, separately, instant coffee, compared with non–coffee drinkers. Decaffeinated coffee showed a mostly neutral or inconsistent effect on the clinical endpoints.

The lowest CVD risk was observed at two to three cups per day among those regularly drinking ground coffee (HR, 0.83; 95% CI, 0.79-0.87) and those predominantly taking instant coffee (HR, 0.91; 95% CI, 0.88-0.95).

Potential mechanisms, study limitations

“Caffeine blocks adenosine receptors, which may explain its potential mild antiarrhythmic properties,” Dr. Kistler said. “Regular coffee drinkers with supraventricular tachycardia coming to the emergency department often need higher adenosine doses to revert.”

Caffeine has a role in weight loss through inhibition of gut fatty acid absorption and increase in basal metabolic rate, Dr. Kistler added, and coffee has been associated with a significantly reduced risk of new-onset type 2 diabetes.

However, coffee beans contain more than 100 biologically active compounds, he noted. They include antioxidant polyphenols that reduce oxidative stress and modulate metabolism. Better survival with habitual coffee consumption may be related to improved endothelial function, circulating antioxidants, improved insulin sensitivity, or reduced inflammation, the researchers noted.

They acknowledged some limitations to the analyses. Cause and effect can’t be determined from the observational data. Also, a cup of coffee in the United Kingdom means about 200-250 mL of brew, but its actual caffeine content can vary from 90 mg to 250 mg. Also, data regarding added sugar or milk was lacking. And UK Biobank participants are predominantly White, so the findings may not be generalizable to other populations.

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

More than 18 months after the Watchman FLX device was licensed by the Food and Drug Administration for closure of the left atrial appendage (LAA), a prospective analysis of registry data presented at CRT 2022, sponsored by MedStar Heart & Vascular Institute, supports its safely outside of the clinical trial setting.

The data, drawn from the LAA occlusion registry of the National Cardiovascular Data Registry, showed a mortality rate at 45 days of under 1.0%, which was consistent with the acceptably low rate of other adverse events, according to Samir R. Kapadia, MD, chair of cardiovascular medicine at the Cleveland Clinic.

Only 0.5% had a pericardial effusion within 45 days of LAA closure that required intervention. Of those without effusion, 95% had a leak of less than 3 mm and 82% had no leak at all, according to Dr. Kapadia.

Patients enrolled in this analysis, called SURPASS (Surveillance Post Approval Analysis Plan), had undergone left atrial closure with the device from August 2020 to September 2022. There were no exclusion criteria. Ultimately, 2 years of follow-up is planned.

With more than 16,000 patients enrolled, the data on 14,363 patients in this initial 45-day analysis represents “the largest number of Watchman FLX patients evaluated to date,” Dr. Kapadia reported.
 

Device implantation success 97.5%

The Watchman FLX, which is delivered to the left atrial appendage by a transcatheter approach, was deployed successfully in 97.5% of all 16,048 patients enrolled in the registry. In the 398 cases without successful deployment, the anatomy was not conducive in nearly 70%. Other reasons included failure to meet device-release criteria and change in patient condition.

The outcomes of interest at 45 days were ischemic strokes, systemic emboli, device-related thrombi, device embolization, and bleeding. The primary endpoints at 2 years will be strokes and thrombotic events.

For stroke, the incidence within 45 days was 0.39%. About 25% of the strokes were hemorrhagic and the remainder were ischemic. There was 1 systemic embolism (0.01%), 5 device embolizations (0.03%), and 30 device-related thrombotic events (0.24%). Major bleeding occurred in 508 patients (3.55%).

For context, Dr. Kapadia compared these results to those observed in the PINNACLE FLX trial, which was a nonrandomized but prospective study of the Watchman FLX published about 1 year ago. In PINNACLE FLX, the enrollment was open to patients indicated for oral anticoagulation but who had an appropriate rationale for seeking a nonpharmacological alternative.

Taken from different studies, the outcomes at 45 days should not be construed as a direct comparison, but the similarity of the results can be considered reassuring, according to Dr. Kapadia.

For the composite safety endpoint of all-cause death, ischemic stroke, systemic embolism, or implantation-related events requiring intervention, the rates in SURPASS (0.4%) and PINNACLE FLX (0.5%) were nearly identical. Device leak rates (82.0% vs. 82.8%), stroke rates (0.4% vs. 0.7%), and all-cause death rates (0.9% vs. 0.5%) were also similar.

The similarity of the SURPASS and PINNACLE FLX data provides another level of reassurance.

“The SURPASS registry confirms the safety of the Watchman Flex in the real-world experience when the device is being used by many different operators in a large patient population,” Dr. Kapadia said in an interview.

In “appropriately selected patients,” the SURPASS data confirm that the Watchman FLX device “provides a safe and effective treatment option,” he added.

Relative to the PINNACLE FLX study, which enrolled 400 patients, it is noteworthy that the median age in SURPASS was older (76 vs. 73.8 years), a potential disadvantage in demonstrating comparable safety. The proportion of non-White patients was similar (6.7% vs. 6.3%). SURPASS had a higher proportion of women (40% vs. 35.5%).

Mitchel L. Zoler/MDedge News

The SURPASS data are credible, according to Vivek Y. Reddy, MD, director of cardiac arrhythmia services, Mount Sinai Health System, New York.

“While there are certainly limitations to registry data, I do feel pretty confident that these procedural complication and success rates [in SURPASS] do indeed reflect reality,” said Dr. Reddy, who was a coauthor of the PINNACLE FLX trial. In general, the SURPASS data “mirror most of our clinical experiences in routine clinical practice.”

With these registry data backing up multiple clinical studies, Dr. Reddy concluded, “I do believe that it is fair to say that Watchman-FLX implantation is a quite safe procedure.”

Dr. Kapadia reported no potential conflicts of interest. Dr. Reddy reported a financial relationship with Boston Scientific.

More than 18 months after the Watchman FLX device was licensed by the Food and Drug Administration for closure of the left atrial appendage (LAA), a prospective analysis of registry data presented at CRT 2022, sponsored by MedStar Heart & Vascular Institute, supports its safely outside of the clinical trial setting.

The data, drawn from the LAA occlusion registry of the National Cardiovascular Data Registry, showed a mortality rate at 45 days of under 1.0%, which was consistent with the acceptably low rate of other adverse events, according to Samir R. Kapadia, MD, chair of cardiovascular medicine at the Cleveland Clinic.

Only 0.5% had a pericardial effusion within 45 days of LAA closure that required intervention. Of those without effusion, 95% had a leak of less than 3 mm and 82% had no leak at all, according to Dr. Kapadia.

Patients enrolled in this analysis, called SURPASS (Surveillance Post Approval Analysis Plan), had undergone left atrial closure with the device from August 2020 to September 2022. There were no exclusion criteria. Ultimately, 2 years of follow-up is planned.

With more than 16,000 patients enrolled, the data on 14,363 patients in this initial 45-day analysis represents “the largest number of Watchman FLX patients evaluated to date,” Dr. Kapadia reported.
 

Device implantation success 97.5%

The Watchman FLX, which is delivered to the left atrial appendage by a transcatheter approach, was deployed successfully in 97.5% of all 16,048 patients enrolled in the registry. In the 398 cases without successful deployment, the anatomy was not conducive in nearly 70%. Other reasons included failure to meet device-release criteria and change in patient condition.

The outcomes of interest at 45 days were ischemic strokes, systemic emboli, device-related thrombi, device embolization, and bleeding. The primary endpoints at 2 years will be strokes and thrombotic events.

For stroke, the incidence within 45 days was 0.39%. About 25% of the strokes were hemorrhagic and the remainder were ischemic. There was 1 systemic embolism (0.01%), 5 device embolizations (0.03%), and 30 device-related thrombotic events (0.24%). Major bleeding occurred in 508 patients (3.55%).

For context, Dr. Kapadia compared these results to those observed in the PINNACLE FLX trial, which was a nonrandomized but prospective study of the Watchman FLX published about 1 year ago. In PINNACLE FLX, the enrollment was open to patients indicated for oral anticoagulation but who had an appropriate rationale for seeking a nonpharmacological alternative.

Taken from different studies, the outcomes at 45 days should not be construed as a direct comparison, but the similarity of the results can be considered reassuring, according to Dr. Kapadia.

For the composite safety endpoint of all-cause death, ischemic stroke, systemic embolism, or implantation-related events requiring intervention, the rates in SURPASS (0.4%) and PINNACLE FLX (0.5%) were nearly identical. Device leak rates (82.0% vs. 82.8%), stroke rates (0.4% vs. 0.7%), and all-cause death rates (0.9% vs. 0.5%) were also similar.

The similarity of the SURPASS and PINNACLE FLX data provides another level of reassurance.

“The SURPASS registry confirms the safety of the Watchman Flex in the real-world experience when the device is being used by many different operators in a large patient population,” Dr. Kapadia said in an interview.

In “appropriately selected patients,” the SURPASS data confirm that the Watchman FLX device “provides a safe and effective treatment option,” he added.

Relative to the PINNACLE FLX study, which enrolled 400 patients, it is noteworthy that the median age in SURPASS was older (76 vs. 73.8 years), a potential disadvantage in demonstrating comparable safety. The proportion of non-White patients was similar (6.7% vs. 6.3%). SURPASS had a higher proportion of women (40% vs. 35.5%).

Mitchel L. Zoler/MDedge News

The SURPASS data are credible, according to Vivek Y. Reddy, MD, director of cardiac arrhythmia services, Mount Sinai Health System, New York.

“While there are certainly limitations to registry data, I do feel pretty confident that these procedural complication and success rates [in SURPASS] do indeed reflect reality,” said Dr. Reddy, who was a coauthor of the PINNACLE FLX trial. In general, the SURPASS data “mirror most of our clinical experiences in routine clinical practice.”

With these registry data backing up multiple clinical studies, Dr. Reddy concluded, “I do believe that it is fair to say that Watchman-FLX implantation is a quite safe procedure.”

Dr. Kapadia reported no potential conflicts of interest. Dr. Reddy reported a financial relationship with Boston Scientific.

More than 18 months after the Watchman FLX device was licensed by the Food and Drug Administration for closure of the left atrial appendage (LAA), a prospective analysis of registry data presented at CRT 2022, sponsored by MedStar Heart & Vascular Institute, supports its safely outside of the clinical trial setting.

The data, drawn from the LAA occlusion registry of the National Cardiovascular Data Registry, showed a mortality rate at 45 days of under 1.0%, which was consistent with the acceptably low rate of other adverse events, according to Samir R. Kapadia, MD, chair of cardiovascular medicine at the Cleveland Clinic.

Only 0.5% had a pericardial effusion within 45 days of LAA closure that required intervention. Of those without effusion, 95% had a leak of less than 3 mm and 82% had no leak at all, according to Dr. Kapadia.

Patients enrolled in this analysis, called SURPASS (Surveillance Post Approval Analysis Plan), had undergone left atrial closure with the device from August 2020 to September 2022. There were no exclusion criteria. Ultimately, 2 years of follow-up is planned.

With more than 16,000 patients enrolled, the data on 14,363 patients in this initial 45-day analysis represents “the largest number of Watchman FLX patients evaluated to date,” Dr. Kapadia reported.
 

Device implantation success 97.5%

The Watchman FLX, which is delivered to the left atrial appendage by a transcatheter approach, was deployed successfully in 97.5% of all 16,048 patients enrolled in the registry. In the 398 cases without successful deployment, the anatomy was not conducive in nearly 70%. Other reasons included failure to meet device-release criteria and change in patient condition.

The outcomes of interest at 45 days were ischemic strokes, systemic emboli, device-related thrombi, device embolization, and bleeding. The primary endpoints at 2 years will be strokes and thrombotic events.

For stroke, the incidence within 45 days was 0.39%. About 25% of the strokes were hemorrhagic and the remainder were ischemic. There was 1 systemic embolism (0.01%), 5 device embolizations (0.03%), and 30 device-related thrombotic events (0.24%). Major bleeding occurred in 508 patients (3.55%).

For context, Dr. Kapadia compared these results to those observed in the PINNACLE FLX trial, which was a nonrandomized but prospective study of the Watchman FLX published about 1 year ago. In PINNACLE FLX, the enrollment was open to patients indicated for oral anticoagulation but who had an appropriate rationale for seeking a nonpharmacological alternative.

Taken from different studies, the outcomes at 45 days should not be construed as a direct comparison, but the similarity of the results can be considered reassuring, according to Dr. Kapadia.

For the composite safety endpoint of all-cause death, ischemic stroke, systemic embolism, or implantation-related events requiring intervention, the rates in SURPASS (0.4%) and PINNACLE FLX (0.5%) were nearly identical. Device leak rates (82.0% vs. 82.8%), stroke rates (0.4% vs. 0.7%), and all-cause death rates (0.9% vs. 0.5%) were also similar.

The similarity of the SURPASS and PINNACLE FLX data provides another level of reassurance.

“The SURPASS registry confirms the safety of the Watchman Flex in the real-world experience when the device is being used by many different operators in a large patient population,” Dr. Kapadia said in an interview.

In “appropriately selected patients,” the SURPASS data confirm that the Watchman FLX device “provides a safe and effective treatment option,” he added.

Relative to the PINNACLE FLX study, which enrolled 400 patients, it is noteworthy that the median age in SURPASS was older (76 vs. 73.8 years), a potential disadvantage in demonstrating comparable safety. The proportion of non-White patients was similar (6.7% vs. 6.3%). SURPASS had a higher proportion of women (40% vs. 35.5%).

Mitchel L. Zoler/MDedge News

The SURPASS data are credible, according to Vivek Y. Reddy, MD, director of cardiac arrhythmia services, Mount Sinai Health System, New York.

“While there are certainly limitations to registry data, I do feel pretty confident that these procedural complication and success rates [in SURPASS] do indeed reflect reality,” said Dr. Reddy, who was a coauthor of the PINNACLE FLX trial. In general, the SURPASS data “mirror most of our clinical experiences in routine clinical practice.”

With these registry data backing up multiple clinical studies, Dr. Reddy concluded, “I do believe that it is fair to say that Watchman-FLX implantation is a quite safe procedure.”

Dr. Kapadia reported no potential conflicts of interest. Dr. Reddy reported a financial relationship with Boston Scientific.

Should screening elderly patients for atrial fibrillation (AFib) during primary care visits be as routine as checking blood pressure, respiration, and other vital signs? A new study says the answer is “maybe” for some people.

The use of handheld, single-lead electrocardiograms (ECGs) did not increase diagnoses of AFib overall in patients aged 65 and older, but it did in patients 85 and up, researchers reported in Circulation.

“Incorporating single-lead ECGs into routine medical assessments as a new vital sign was widely feasible. Over 90% of people who were offered screening agreed to it and underwent screening,” said Steven Lubitz, MD, of the Cardiac Arrhythmia Service and Cardiovascular Research Center at Massachusetts General Hospital, Boston, who led the study.

Because advanced age is associated with a substantially increased risk of both AFib and stroke, point-of-care screening might be an efficient use of handheld ECGs, Dr. Lubitz said.

“The technology simply requires patients to place their fingers on the device to record an electrocardiogram and can be easily embedded in the routine clinical practice of primary care physicians,” he said in an interview.

The typical person has a 30% lifetime risk of developing AFib, and the chances of experiencing a stroke associated with the arrhythmia can be reduced significantly with anticoagulants, Dr. Lubitz said.

Professional organizations are split about the utility of screening for AFib. The European Society of Cardiology recommends opportunistic screening with either pulse palpation or ECG rhythm strip at clinic visits for patients 65 and older. The National Heart Foundation of Australia and the Cardiac Society of Australia and New Zealand have issued similar guidelines.

However, screening for AFib is not considered standard of care in the United States – although Dr. Lubitz predicted that that would change.

“I think the guidelines in the United States will evolve in the next few years, because I think we’re getting closer to understanding who we should be screening for atrial fibrillation and how we should be screening,” Dr. Lubitz told this news organization.
 

‘Very reassuring’ results

The randomized controlled trial found that for patients 85 and older, use of handheld ECGs led to a nearly 2% increase in new diagnoses of AFib in the screening group compared to conventional care.

The researchers also demonstrated an increased likelihood of diagnosing AFib during the patient’s primary-care encounter than at other sites, such as the emergency department or inpatient settings that might be more costly and resource-intensive. Moreover, the study reported that point-of-care screening was associated with high rates of oral anticoagulation prescriptions written for patients with newly diagnosed AFib, a finding Dr. Lubitz called “very reassuring.”

The Mass General researchers used single-lead devices attached to a tablet computer to screen more than 35,000 men and women from 16 primary care sites affiliated with the hospital’s practice-based research network.

Half the sites were randomly selected to include the screening intervention, where medical assistants used handheld ECGs at the start of the visit while checking routine vital signs.

The 1-year study screened 91% of eligible patients, demonstrating that single-lead rhythm assessment is feasible as part of routine primary care practice, Dr. Lubitz said. This finding supports other studies suggesting that handheld devices can enable rapid and scalable mass screening.

“We demonstrated that integration into routine practice by clinical personnel – in this case, medical assistants – is feasible. No study has measured and demonstrated such a high integration with routine care, reflecting both patient interest in screening and feasibility of incorporating screening into busy clinical practices,” Dr. Lubitz said.

Mobile ECGs with the handheld device take about 30 seconds to perform. In contrast, standard ECGs used in outpatient practices are bulky, and recording the ECG can take roughly 10 minutes.

Anthony Leazzo, DO, chairman of family practice at Northwestern Medicine Delnor Hospital, in Geneva, Ill., noted that smartwatches provide an alternative technology for detecting AFib.

But “a handheld, one-lead device would be more beneficial and should be more sensitive by measuring electrical activity similar to a normal ECG,” he said.

However, Dr. Leazzo said using such technology would need to be cost-effective because the patients at highest risk for AFib usually are on fixed incomes. Consumer versions of the devices can cost under $100. Dr. Lubitz said the actual cost for devices and a software platform used for a medical enterprise may differ.

Handheld ECGs are gradually being integrated into clinical practices, a trend driven by the rapid growth of telemedicine to remotely assess patients, Dr. Lubitz said.

“Our work affirmed that single-lead devices generate information for the physician that is actionable, though the proportion of newly detected AFib cases using a point-of-care ECG screening approach is likely to be very small,” Dr. Lubitz said in an interview. “For that reason, we think handheld devices are best deployed for people at the highest risk of AFib and stroke, and age is an excellent surrogate for that determination.”

The study was funded by Bristol-Myers Squibb–Pfizer Alliance.

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

Should screening elderly patients for atrial fibrillation (AFib) during primary care visits be as routine as checking blood pressure, respiration, and other vital signs? A new study says the answer is “maybe” for some people.

The use of handheld, single-lead electrocardiograms (ECGs) did not increase diagnoses of AFib overall in patients aged 65 and older, but it did in patients 85 and up, researchers reported in Circulation.

“Incorporating single-lead ECGs into routine medical assessments as a new vital sign was widely feasible. Over 90% of people who were offered screening agreed to it and underwent screening,” said Steven Lubitz, MD, of the Cardiac Arrhythmia Service and Cardiovascular Research Center at Massachusetts General Hospital, Boston, who led the study.

Because advanced age is associated with a substantially increased risk of both AFib and stroke, point-of-care screening might be an efficient use of handheld ECGs, Dr. Lubitz said.

“The technology simply requires patients to place their fingers on the device to record an electrocardiogram and can be easily embedded in the routine clinical practice of primary care physicians,” he said in an interview.

The typical person has a 30% lifetime risk of developing AFib, and the chances of experiencing a stroke associated with the arrhythmia can be reduced significantly with anticoagulants, Dr. Lubitz said.

Professional organizations are split about the utility of screening for AFib. The European Society of Cardiology recommends opportunistic screening with either pulse palpation or ECG rhythm strip at clinic visits for patients 65 and older. The National Heart Foundation of Australia and the Cardiac Society of Australia and New Zealand have issued similar guidelines.

However, screening for AFib is not considered standard of care in the United States – although Dr. Lubitz predicted that that would change.

“I think the guidelines in the United States will evolve in the next few years, because I think we’re getting closer to understanding who we should be screening for atrial fibrillation and how we should be screening,” Dr. Lubitz told this news organization.
 

‘Very reassuring’ results

The randomized controlled trial found that for patients 85 and older, use of handheld ECGs led to a nearly 2% increase in new diagnoses of AFib in the screening group compared to conventional care.

The researchers also demonstrated an increased likelihood of diagnosing AFib during the patient’s primary-care encounter than at other sites, such as the emergency department or inpatient settings that might be more costly and resource-intensive. Moreover, the study reported that point-of-care screening was associated with high rates of oral anticoagulation prescriptions written for patients with newly diagnosed AFib, a finding Dr. Lubitz called “very reassuring.”

The Mass General researchers used single-lead devices attached to a tablet computer to screen more than 35,000 men and women from 16 primary care sites affiliated with the hospital’s practice-based research network.

Half the sites were randomly selected to include the screening intervention, where medical assistants used handheld ECGs at the start of the visit while checking routine vital signs.

The 1-year study screened 91% of eligible patients, demonstrating that single-lead rhythm assessment is feasible as part of routine primary care practice, Dr. Lubitz said. This finding supports other studies suggesting that handheld devices can enable rapid and scalable mass screening.

“We demonstrated that integration into routine practice by clinical personnel – in this case, medical assistants – is feasible. No study has measured and demonstrated such a high integration with routine care, reflecting both patient interest in screening and feasibility of incorporating screening into busy clinical practices,” Dr. Lubitz said.

Mobile ECGs with the handheld device take about 30 seconds to perform. In contrast, standard ECGs used in outpatient practices are bulky, and recording the ECG can take roughly 10 minutes.

Anthony Leazzo, DO, chairman of family practice at Northwestern Medicine Delnor Hospital, in Geneva, Ill., noted that smartwatches provide an alternative technology for detecting AFib.

But “a handheld, one-lead device would be more beneficial and should be more sensitive by measuring electrical activity similar to a normal ECG,” he said.

However, Dr. Leazzo said using such technology would need to be cost-effective because the patients at highest risk for AFib usually are on fixed incomes. Consumer versions of the devices can cost under $100. Dr. Lubitz said the actual cost for devices and a software platform used for a medical enterprise may differ.

Handheld ECGs are gradually being integrated into clinical practices, a trend driven by the rapid growth of telemedicine to remotely assess patients, Dr. Lubitz said.

“Our work affirmed that single-lead devices generate information for the physician that is actionable, though the proportion of newly detected AFib cases using a point-of-care ECG screening approach is likely to be very small,” Dr. Lubitz said in an interview. “For that reason, we think handheld devices are best deployed for people at the highest risk of AFib and stroke, and age is an excellent surrogate for that determination.”

The study was funded by Bristol-Myers Squibb–Pfizer Alliance.

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

Should screening elderly patients for atrial fibrillation (AFib) during primary care visits be as routine as checking blood pressure, respiration, and other vital signs? A new study says the answer is “maybe” for some people.

The use of handheld, single-lead electrocardiograms (ECGs) did not increase diagnoses of AFib overall in patients aged 65 and older, but it did in patients 85 and up, researchers reported in Circulation.

“Incorporating single-lead ECGs into routine medical assessments as a new vital sign was widely feasible. Over 90% of people who were offered screening agreed to it and underwent screening,” said Steven Lubitz, MD, of the Cardiac Arrhythmia Service and Cardiovascular Research Center at Massachusetts General Hospital, Boston, who led the study.

Because advanced age is associated with a substantially increased risk of both AFib and stroke, point-of-care screening might be an efficient use of handheld ECGs, Dr. Lubitz said.

“The technology simply requires patients to place their fingers on the device to record an electrocardiogram and can be easily embedded in the routine clinical practice of primary care physicians,” he said in an interview.

The typical person has a 30% lifetime risk of developing AFib, and the chances of experiencing a stroke associated with the arrhythmia can be reduced significantly with anticoagulants, Dr. Lubitz said.

Professional organizations are split about the utility of screening for AFib. The European Society of Cardiology recommends opportunistic screening with either pulse palpation or ECG rhythm strip at clinic visits for patients 65 and older. The National Heart Foundation of Australia and the Cardiac Society of Australia and New Zealand have issued similar guidelines.

However, screening for AFib is not considered standard of care in the United States – although Dr. Lubitz predicted that that would change.

“I think the guidelines in the United States will evolve in the next few years, because I think we’re getting closer to understanding who we should be screening for atrial fibrillation and how we should be screening,” Dr. Lubitz told this news organization.
 

‘Very reassuring’ results

The randomized controlled trial found that for patients 85 and older, use of handheld ECGs led to a nearly 2% increase in new diagnoses of AFib in the screening group compared to conventional care.

The researchers also demonstrated an increased likelihood of diagnosing AFib during the patient’s primary-care encounter than at other sites, such as the emergency department or inpatient settings that might be more costly and resource-intensive. Moreover, the study reported that point-of-care screening was associated with high rates of oral anticoagulation prescriptions written for patients with newly diagnosed AFib, a finding Dr. Lubitz called “very reassuring.”

The Mass General researchers used single-lead devices attached to a tablet computer to screen more than 35,000 men and women from 16 primary care sites affiliated with the hospital’s practice-based research network.

Half the sites were randomly selected to include the screening intervention, where medical assistants used handheld ECGs at the start of the visit while checking routine vital signs.

The 1-year study screened 91% of eligible patients, demonstrating that single-lead rhythm assessment is feasible as part of routine primary care practice, Dr. Lubitz said. This finding supports other studies suggesting that handheld devices can enable rapid and scalable mass screening.

“We demonstrated that integration into routine practice by clinical personnel – in this case, medical assistants – is feasible. No study has measured and demonstrated such a high integration with routine care, reflecting both patient interest in screening and feasibility of incorporating screening into busy clinical practices,” Dr. Lubitz said.

Mobile ECGs with the handheld device take about 30 seconds to perform. In contrast, standard ECGs used in outpatient practices are bulky, and recording the ECG can take roughly 10 minutes.

Anthony Leazzo, DO, chairman of family practice at Northwestern Medicine Delnor Hospital, in Geneva, Ill., noted that smartwatches provide an alternative technology for detecting AFib.

But “a handheld, one-lead device would be more beneficial and should be more sensitive by measuring electrical activity similar to a normal ECG,” he said.

However, Dr. Leazzo said using such technology would need to be cost-effective because the patients at highest risk for AFib usually are on fixed incomes. Consumer versions of the devices can cost under $100. Dr. Lubitz said the actual cost for devices and a software platform used for a medical enterprise may differ.

Handheld ECGs are gradually being integrated into clinical practices, a trend driven by the rapid growth of telemedicine to remotely assess patients, Dr. Lubitz said.

“Our work affirmed that single-lead devices generate information for the physician that is actionable, though the proportion of newly detected AFib cases using a point-of-care ECG screening approach is likely to be very small,” Dr. Lubitz said in an interview. “For that reason, we think handheld devices are best deployed for people at the highest risk of AFib and stroke, and age is an excellent surrogate for that determination.”

The study was funded by Bristol-Myers Squibb–Pfizer Alliance.

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

Adults with a congenital heart defect (CHD) are at increased risk for serious illness and death when hospitalized with COVID-19, making vaccination and other preventive measures even important in this population, say researchers with the Centers for Disease Control and Prevention.

“We found that hospitalized patients with heart defects are up to twice as likely to have critical outcomes of COVID-19 illness (admission to the intensive care unit, use of a ventilator to help with breathing, or death) compared to hospitalized COVID-19 patients without heart defects,” Karrie Downing, MPH, epidemiologist, with the CDC’s National Center on Birth Defects and Developmental Disabilities, said in an interview.

“Additionally, we learned that people with hearts defects who were older or who also had other conditions like heart failure, pulmonary hypertension, Down syndrome, diabetes, or obesity were the most likely to have critical COVID-19 illness, but children and adults with heart defects without these other conditions were still at increased risk,” Ms. Downing said.

The message for health care providers is clear: “Encourage your patients with heart defects to get vaccinated and discuss with your patients the need for other preventive measures to avoid infection that may progress to severe COVID-19 illness,” Ms. Downing added.

The study was published online March 7, 2022, in Circulation.

The researchers analyzed data on 235,638 patients hospitalized with COVID-19 between March 2020 and January 2021, including 421 (0.2%) with CHD. Most CHD patients were older than 30 years (73%) and 61% were men, with 55% non-Hispanic white, 19% Hispanic and 16% non-Hispanic Black.

Overall, 68% of CHD patients had at least one comorbidity, as did 59% of patients without CHD.

Rates of ICU admission were higher in the CHD group (54% vs. 43%), as were rates of invasive mechanical ventilation (24% vs. 15%) and in-hospital death (11% vs. 7%).

After accounting for patient characteristics, ICU admission, invasive mechanical ventilation and death were more prevalent among COVID-19 patients with rather than without CHD, with adjusted prevalence ratios of 1.4, 1.8 and 2.0, respectively.

When stratified by high-risk characteristics, prevalence estimates for ICU admission, invasive mechanical ventilation and death remained higher among patients with COVID-19 and CHD across nearly all strata, including younger age groups and those without heart failure, pulmonary hypertension, Down syndrome, diabetes, or obesity, the researchers reported.

Ms. Downing said more work is needed to identify why the clinical course of COVID-19 disease results in admission to the ICU, the need for a ventilator, or death for some hospitalized patients with CHD and not for others.

“There could be a number of social, environmental, economic, medical, and genetic factors playing a role. But staying up to date with COVID-19 vaccines and following preventive measures for COVID-19 are effective ways to reduce the risk of severe illness from COVID-19,” Ms. Downing said.

The study had no specific funding. The authors reported no relevant disclosures.

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

Adults with a congenital heart defect (CHD) are at increased risk for serious illness and death when hospitalized with COVID-19, making vaccination and other preventive measures even important in this population, say researchers with the Centers for Disease Control and Prevention.

“We found that hospitalized patients with heart defects are up to twice as likely to have critical outcomes of COVID-19 illness (admission to the intensive care unit, use of a ventilator to help with breathing, or death) compared to hospitalized COVID-19 patients without heart defects,” Karrie Downing, MPH, epidemiologist, with the CDC’s National Center on Birth Defects and Developmental Disabilities, said in an interview.

“Additionally, we learned that people with hearts defects who were older or who also had other conditions like heart failure, pulmonary hypertension, Down syndrome, diabetes, or obesity were the most likely to have critical COVID-19 illness, but children and adults with heart defects without these other conditions were still at increased risk,” Ms. Downing said.

The message for health care providers is clear: “Encourage your patients with heart defects to get vaccinated and discuss with your patients the need for other preventive measures to avoid infection that may progress to severe COVID-19 illness,” Ms. Downing added.

The study was published online March 7, 2022, in Circulation.

The researchers analyzed data on 235,638 patients hospitalized with COVID-19 between March 2020 and January 2021, including 421 (0.2%) with CHD. Most CHD patients were older than 30 years (73%) and 61% were men, with 55% non-Hispanic white, 19% Hispanic and 16% non-Hispanic Black.

Overall, 68% of CHD patients had at least one comorbidity, as did 59% of patients without CHD.

Rates of ICU admission were higher in the CHD group (54% vs. 43%), as were rates of invasive mechanical ventilation (24% vs. 15%) and in-hospital death (11% vs. 7%).

After accounting for patient characteristics, ICU admission, invasive mechanical ventilation and death were more prevalent among COVID-19 patients with rather than without CHD, with adjusted prevalence ratios of 1.4, 1.8 and 2.0, respectively.

When stratified by high-risk characteristics, prevalence estimates for ICU admission, invasive mechanical ventilation and death remained higher among patients with COVID-19 and CHD across nearly all strata, including younger age groups and those without heart failure, pulmonary hypertension, Down syndrome, diabetes, or obesity, the researchers reported.

Ms. Downing said more work is needed to identify why the clinical course of COVID-19 disease results in admission to the ICU, the need for a ventilator, or death for some hospitalized patients with CHD and not for others.

“There could be a number of social, environmental, economic, medical, and genetic factors playing a role. But staying up to date with COVID-19 vaccines and following preventive measures for COVID-19 are effective ways to reduce the risk of severe illness from COVID-19,” Ms. Downing said.

The study had no specific funding. The authors reported no relevant disclosures.

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

Adults with a congenital heart defect (CHD) are at increased risk for serious illness and death when hospitalized with COVID-19, making vaccination and other preventive measures even important in this population, say researchers with the Centers for Disease Control and Prevention.

“We found that hospitalized patients with heart defects are up to twice as likely to have critical outcomes of COVID-19 illness (admission to the intensive care unit, use of a ventilator to help with breathing, or death) compared to hospitalized COVID-19 patients without heart defects,” Karrie Downing, MPH, epidemiologist, with the CDC’s National Center on Birth Defects and Developmental Disabilities, said in an interview.

“Additionally, we learned that people with hearts defects who were older or who also had other conditions like heart failure, pulmonary hypertension, Down syndrome, diabetes, or obesity were the most likely to have critical COVID-19 illness, but children and adults with heart defects without these other conditions were still at increased risk,” Ms. Downing said.

The message for health care providers is clear: “Encourage your patients with heart defects to get vaccinated and discuss with your patients the need for other preventive measures to avoid infection that may progress to severe COVID-19 illness,” Ms. Downing added.

The study was published online March 7, 2022, in Circulation.

The researchers analyzed data on 235,638 patients hospitalized with COVID-19 between March 2020 and January 2021, including 421 (0.2%) with CHD. Most CHD patients were older than 30 years (73%) and 61% were men, with 55% non-Hispanic white, 19% Hispanic and 16% non-Hispanic Black.

Overall, 68% of CHD patients had at least one comorbidity, as did 59% of patients without CHD.

Rates of ICU admission were higher in the CHD group (54% vs. 43%), as were rates of invasive mechanical ventilation (24% vs. 15%) and in-hospital death (11% vs. 7%).

After accounting for patient characteristics, ICU admission, invasive mechanical ventilation and death were more prevalent among COVID-19 patients with rather than without CHD, with adjusted prevalence ratios of 1.4, 1.8 and 2.0, respectively.

When stratified by high-risk characteristics, prevalence estimates for ICU admission, invasive mechanical ventilation and death remained higher among patients with COVID-19 and CHD across nearly all strata, including younger age groups and those without heart failure, pulmonary hypertension, Down syndrome, diabetes, or obesity, the researchers reported.

Ms. Downing said more work is needed to identify why the clinical course of COVID-19 disease results in admission to the ICU, the need for a ventilator, or death for some hospitalized patients with CHD and not for others.

“There could be a number of social, environmental, economic, medical, and genetic factors playing a role. But staying up to date with COVID-19 vaccines and following preventive measures for COVID-19 are effective ways to reduce the risk of severe illness from COVID-19,” Ms. Downing said.

The study had no specific funding. The authors reported no relevant disclosures.

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

Survival after in-hospital cardiac arrest was roughly one-third lower in patients with COVID-19 infections compared to uninfected patients, based on data from nearly 25,000 individuals.

Survival rates of less than 3% were reported in the United States and China for patients who suffered in-hospital cardiac arrest (IHCA) while infected with COVID-19 early in the pandemic, but the data came from small, single-center studies in overwhelmed hospitals, wrote Saket Girotra, MD, of the University of Iowa, Iowa City, and fellow American Heart Association Get With the Guidelines–Resuscitation Investigators. Whether these early reports reflect the broader experience of patients with COVID-19 in hospitals in the United States remains unknown.

In a study published as a research letter in JAMA Network Open, the researchers reviewed data from the American Heart Association Get With the Guidelines–Resuscitation registry. The registry collects detailed information on patients aged 18 years and older who experience cardiac arrest at participating hospitals in the United States. The study population included 24,915 patients aged 18 years and older from 286 hospitals who experienced IHCA during March–December 2020. The mean age of the patients was 64.7 years; 61.1% were White, 24.8% were Black, 3.8% were of other race or ethnicity, and 10.3% were of unknown race or ethnicity.

The primary outcomes were survival to discharge and return of spontaneous circulation (ROSC) for at least 20 minutes.

A total of 5,916 patients (23.7%) had suspected or confirmed COVID-19 infections, and infected patients were more likely to be younger, male, and Black. Patients with COVID-19 infections also were significantly more likely than noninfected patients to have nonshockable rhythm, pneumonia, respiratory insufficiency, or sepsis, and to be on mechanical ventilation or vasopressors when the IHCA occurred, the researchers noted.

Survival rates to hospital discharge were 11.9% for COVID-19 patients, compared with 23.5% for noninfected patients (adjusted relative risk, 0.65; P < .001). ROSC was 53.7% and 63.6%, for infected and noninfected patients, respectively (aRR, 0.86; P < .001).

COVID-19 patients also were more likely than noninfected patients to receive delayed defibrillation, the researchers said. “Although delays in resuscitation, especially defibrillation, may have contributed to lower survival, the negative association of COVID-19 with survival in this study was consistent across subgroups, including patients who received timely treatment with defibrillation and epinephrine.”

The extremely low survival rate in early pandemic studies likely reflected the overwhelming burden on health systems at the time, the researchers said in their discussion.

The study findings were limited by several factors, including potential confounding from unmeasured variables, the use of a quality improvement registry that may not reflect nonparticipating hospitals, and potential false-positive COVID-19 cases. However, the result support findings from recent studies of multiple centers and extend clinical knowledge by comparing infected and noninfected patients from a larger group of hospitals than previously studied, the researchers said.

“We believe that these data will be relevant to health care providers and hospital administrators as the COVID-19 pandemic continues,” they concluded.
 

Think beyond COVID-19 for cardiac care

“Early during the pandemic, questions were raised whether COVID-19 patients should be treated with CPR,” Dr. Girotra said in an interview. “This was because initial studies had found a dismal survival of 0%-3% in COVID patients treated with CPR. The potential of transmitting the virus to health care professionals during CPR further heightened these concerns. We wanted to know whether the poor survival reported in these initial studies were broadly representative.”

Dr. Girotra said that some of the study findings were surprising. “We found that of all patients with IHCA in 2020 in our study, one in four were suspected or confirmed to have COVID-19 infection. We were surprised by the magnitude of COVID’s impact on the cardiac arrest incidence.”

The implications for clinical decision-making are to think outside of COVID-19 infection, said Dr. Girotra. In the current study, “Although overall survival of cardiac arrest in COVID-positive patients was 30% lower, compared to non-COVID patients, it was not as poor as previously reported. COVID-19 infection alone should not be considered the sole factor for making decisions regarding CPR.

“Over the past 2 decades, we have experienced large gains in survival for in-hospital cardiac arrest. However, the COVID-19 pandemic has eroded these gains,” said Dr. Girotra. “Future studies are needed to monitor the impact of any new variants on cardiac arrest care,” as well as studies “to see whether we return to the prepandemic levels of IHCA survival once the pandemic recedes.”

Dr. Girotra has no relevant financial disclosures.

Survival after in-hospital cardiac arrest was roughly one-third lower in patients with COVID-19 infections compared to uninfected patients, based on data from nearly 25,000 individuals.

Survival rates of less than 3% were reported in the United States and China for patients who suffered in-hospital cardiac arrest (IHCA) while infected with COVID-19 early in the pandemic, but the data came from small, single-center studies in overwhelmed hospitals, wrote Saket Girotra, MD, of the University of Iowa, Iowa City, and fellow American Heart Association Get With the Guidelines–Resuscitation Investigators. Whether these early reports reflect the broader experience of patients with COVID-19 in hospitals in the United States remains unknown.

In a study published as a research letter in JAMA Network Open, the researchers reviewed data from the American Heart Association Get With the Guidelines–Resuscitation registry. The registry collects detailed information on patients aged 18 years and older who experience cardiac arrest at participating hospitals in the United States. The study population included 24,915 patients aged 18 years and older from 286 hospitals who experienced IHCA during March–December 2020. The mean age of the patients was 64.7 years; 61.1% were White, 24.8% were Black, 3.8% were of other race or ethnicity, and 10.3% were of unknown race or ethnicity.

The primary outcomes were survival to discharge and return of spontaneous circulation (ROSC) for at least 20 minutes.

A total of 5,916 patients (23.7%) had suspected or confirmed COVID-19 infections, and infected patients were more likely to be younger, male, and Black. Patients with COVID-19 infections also were significantly more likely than noninfected patients to have nonshockable rhythm, pneumonia, respiratory insufficiency, or sepsis, and to be on mechanical ventilation or vasopressors when the IHCA occurred, the researchers noted.

Survival rates to hospital discharge were 11.9% for COVID-19 patients, compared with 23.5% for noninfected patients (adjusted relative risk, 0.65; P < .001). ROSC was 53.7% and 63.6%, for infected and noninfected patients, respectively (aRR, 0.86; P < .001).

COVID-19 patients also were more likely than noninfected patients to receive delayed defibrillation, the researchers said. “Although delays in resuscitation, especially defibrillation, may have contributed to lower survival, the negative association of COVID-19 with survival in this study was consistent across subgroups, including patients who received timely treatment with defibrillation and epinephrine.”

The extremely low survival rate in early pandemic studies likely reflected the overwhelming burden on health systems at the time, the researchers said in their discussion.

The study findings were limited by several factors, including potential confounding from unmeasured variables, the use of a quality improvement registry that may not reflect nonparticipating hospitals, and potential false-positive COVID-19 cases. However, the result support findings from recent studies of multiple centers and extend clinical knowledge by comparing infected and noninfected patients from a larger group of hospitals than previously studied, the researchers said.

“We believe that these data will be relevant to health care providers and hospital administrators as the COVID-19 pandemic continues,” they concluded.
 

Think beyond COVID-19 for cardiac care

“Early during the pandemic, questions were raised whether COVID-19 patients should be treated with CPR,” Dr. Girotra said in an interview. “This was because initial studies had found a dismal survival of 0%-3% in COVID patients treated with CPR. The potential of transmitting the virus to health care professionals during CPR further heightened these concerns. We wanted to know whether the poor survival reported in these initial studies were broadly representative.”

Dr. Girotra said that some of the study findings were surprising. “We found that of all patients with IHCA in 2020 in our study, one in four were suspected or confirmed to have COVID-19 infection. We were surprised by the magnitude of COVID’s impact on the cardiac arrest incidence.”

The implications for clinical decision-making are to think outside of COVID-19 infection, said Dr. Girotra. In the current study, “Although overall survival of cardiac arrest in COVID-positive patients was 30% lower, compared to non-COVID patients, it was not as poor as previously reported. COVID-19 infection alone should not be considered the sole factor for making decisions regarding CPR.

“Over the past 2 decades, we have experienced large gains in survival for in-hospital cardiac arrest. However, the COVID-19 pandemic has eroded these gains,” said Dr. Girotra. “Future studies are needed to monitor the impact of any new variants on cardiac arrest care,” as well as studies “to see whether we return to the prepandemic levels of IHCA survival once the pandemic recedes.”

Dr. Girotra has no relevant financial disclosures.

Survival after in-hospital cardiac arrest was roughly one-third lower in patients with COVID-19 infections compared to uninfected patients, based on data from nearly 25,000 individuals.

Survival rates of less than 3% were reported in the United States and China for patients who suffered in-hospital cardiac arrest (IHCA) while infected with COVID-19 early in the pandemic, but the data came from small, single-center studies in overwhelmed hospitals, wrote Saket Girotra, MD, of the University of Iowa, Iowa City, and fellow American Heart Association Get With the Guidelines–Resuscitation Investigators. Whether these early reports reflect the broader experience of patients with COVID-19 in hospitals in the United States remains unknown.

In a study published as a research letter in JAMA Network Open, the researchers reviewed data from the American Heart Association Get With the Guidelines–Resuscitation registry. The registry collects detailed information on patients aged 18 years and older who experience cardiac arrest at participating hospitals in the United States. The study population included 24,915 patients aged 18 years and older from 286 hospitals who experienced IHCA during March–December 2020. The mean age of the patients was 64.7 years; 61.1% were White, 24.8% were Black, 3.8% were of other race or ethnicity, and 10.3% were of unknown race or ethnicity.

The primary outcomes were survival to discharge and return of spontaneous circulation (ROSC) for at least 20 minutes.

A total of 5,916 patients (23.7%) had suspected or confirmed COVID-19 infections, and infected patients were more likely to be younger, male, and Black. Patients with COVID-19 infections also were significantly more likely than noninfected patients to have nonshockable rhythm, pneumonia, respiratory insufficiency, or sepsis, and to be on mechanical ventilation or vasopressors when the IHCA occurred, the researchers noted.

Survival rates to hospital discharge were 11.9% for COVID-19 patients, compared with 23.5% for noninfected patients (adjusted relative risk, 0.65; P < .001). ROSC was 53.7% and 63.6%, for infected and noninfected patients, respectively (aRR, 0.86; P < .001).

COVID-19 patients also were more likely than noninfected patients to receive delayed defibrillation, the researchers said. “Although delays in resuscitation, especially defibrillation, may have contributed to lower survival, the negative association of COVID-19 with survival in this study was consistent across subgroups, including patients who received timely treatment with defibrillation and epinephrine.”

The extremely low survival rate in early pandemic studies likely reflected the overwhelming burden on health systems at the time, the researchers said in their discussion.

The study findings were limited by several factors, including potential confounding from unmeasured variables, the use of a quality improvement registry that may not reflect nonparticipating hospitals, and potential false-positive COVID-19 cases. However, the result support findings from recent studies of multiple centers and extend clinical knowledge by comparing infected and noninfected patients from a larger group of hospitals than previously studied, the researchers said.

“We believe that these data will be relevant to health care providers and hospital administrators as the COVID-19 pandemic continues,” they concluded.
 

Think beyond COVID-19 for cardiac care

“Early during the pandemic, questions were raised whether COVID-19 patients should be treated with CPR,” Dr. Girotra said in an interview. “This was because initial studies had found a dismal survival of 0%-3% in COVID patients treated with CPR. The potential of transmitting the virus to health care professionals during CPR further heightened these concerns. We wanted to know whether the poor survival reported in these initial studies were broadly representative.”

Dr. Girotra said that some of the study findings were surprising. “We found that of all patients with IHCA in 2020 in our study, one in four were suspected or confirmed to have COVID-19 infection. We were surprised by the magnitude of COVID’s impact on the cardiac arrest incidence.”

The implications for clinical decision-making are to think outside of COVID-19 infection, said Dr. Girotra. In the current study, “Although overall survival of cardiac arrest in COVID-positive patients was 30% lower, compared to non-COVID patients, it was not as poor as previously reported. COVID-19 infection alone should not be considered the sole factor for making decisions regarding CPR.

“Over the past 2 decades, we have experienced large gains in survival for in-hospital cardiac arrest. However, the COVID-19 pandemic has eroded these gains,” said Dr. Girotra. “Future studies are needed to monitor the impact of any new variants on cardiac arrest care,” as well as studies “to see whether we return to the prepandemic levels of IHCA survival once the pandemic recedes.”

Dr. Girotra has no relevant financial disclosures.

Building on several previous reports that the newest models of mobile telephones and other electronics that use magnets pose a threat to the function of defibrillators and other implantable cardiovascular devices, a new study implicates any device that emits a 10-gauss (G) magnetic field more than a couple of inches.

“Beside the devices described in our manuscript, this can be any portable consumer product [with magnets] like electric cigarettes or smart watches,” explained study author Sven Knecht, DSc, a research electrophysiologist associated with the department of cardiology, University Hospital Basel (Switzerland).

In the newly published article, the investigators evaluated earphones, earphone charging cases, and two electronic pens used to draw on electronic tablets. These particular devices are of interest because, like mobile phones, they are of a size and shape to fit in a breast pocket adjacent to where many cardiovascular devices are implanted.

The study joins several previous studies that have shown the same risk, but this study used three-dimensional (3D) mapping of the magnetic field rather than a one-axis sensor, which is a standard adopted by the U.S. Food and Drug Administration, according to the investigators.
 

3D mapping assessment used

Because of the 3D nature of magnetic fields, 3D mapping serves as a better tool to assess the risk of the magnetic force as the intensity gradient diminishes with distance from the source, the authors contended. The 3D maps used in this study have a resolution to 2 mm.

The ex vivo measurements of the magnetic field, which could be displayed in a configurable 3D volume in relation to the electronic products were performed on five different explanted cardioverter defibrillators from two manufacturers.

In the ex vivo setting, the ability of the earphones, earphone charging cases, and electronic pens to interfere with defibrillator function was compared to that of the Apple iPhone 12 Max, which was the subject of a small in vivo study published in 2021. When the iPhone 12 Max was placed on the skin over a cardiac implantable device in that study, clinically identifiable interference could be detected in all 3 patients evaluated.

Based on previous work, the International Organization for Standardization has established that a minimal field strength of 10 G is needed to interfere with an implantable device, but the actual risk from any specific device is determined by the distance at which this strength of magnetic field is projected.

In the 3D analysis, the 10-G intensity was found to project 20 mm from the surface of the ear phones, ear phone charging case, and one of the electronic pens and to project 29 mm from the other electronic pen. When tested against the five defibrillators, magnetic reversion mode was triggered by the portable electronics at distances ranging from 8 to 18 mm.

In an interview, Dr. Knecht explained that this study adds more devices to the list of those associated with potential for interfering with implantable cardiovascular devices, but added that the more important point is that any device that contains magnets emitting a force of 10 G or greater for more than a few inches can be expected to be associated with clinically meaningful interference. The devices tested in this study were produced by Apple and Microsoft, but a focus on specific devices obscures the main message.

“All portable electronics with an embedded permanent magnet creating a 10-G magnetic field have a theoretical capability of triggering implantable devices,” he said.

For pacemakers, the interference is likely to trigger constant pacing, which would not be expected to pose a significant health threat if detected with a reasonable period, according to Dr. Knecht. Interference is potentially more serious for defibrillators, which might fail during magnetic interference to provide the shock needed to terminate a serious arrhythmia.

The combination of events – interference at the time of an arrhythmia – make this risk “very low,” but Dr. Knecht said it is sufficient to mean that patients receiving an implantable cardiovascular device should be made aware of the risk and the need to avoid placing portable electronic products near the implanted device.

When in vivo evidence of a disturbance with the iPhone 12 was reported in 2021, it amplified existing concern. The American Heart Association maintains a list of electronic products with the potential to interfere with implantable devices on its website. But, again, understanding the potential for risk and the need to keep electronic products with magnets at a safe distance from cardiovascular implantable devices is more important than trying to memorize the ever-growing list of devices with this capability.

“Prudent education of patients receiving an implantable device is important,” said N.A. Mark Estes III, MD, professor of medicine in the division of cardiology at the University of Pittsburgh. However, in an interview, he warned that the growing list of implicated devices makes a complete survey impractical, and, even if achievable, likely to leave patients “feeling overwhelmed.”
 

In Dr. Estes’s practice, he does provide printed information about the risks of electronics to interfere with implantable devices as well as a list of dos and don’ts. He agreed that the absolute risk of interference from a device causing significant clinical complications is low, but the goal is to “bring it as close to zero as possible.”

“No clinical case of a meaningful interaction of an electronic product and dysfunction of an implantable device has ever been documented,” he said. Given the widespread use of the new generation of cellphones that contain magnets powerful enough to induce dysfunction in an implantable device, “this speaks to the fact that the risk continues to be very low.”

Dr. Knecht and coinvestigators, along with Dr. Estes, reported no potential conflicts of interest.

Building on several previous reports that the newest models of mobile telephones and other electronics that use magnets pose a threat to the function of defibrillators and other implantable cardiovascular devices, a new study implicates any device that emits a 10-gauss (G) magnetic field more than a couple of inches.

“Beside the devices described in our manuscript, this can be any portable consumer product [with magnets] like electric cigarettes or smart watches,” explained study author Sven Knecht, DSc, a research electrophysiologist associated with the department of cardiology, University Hospital Basel (Switzerland).

In the newly published article, the investigators evaluated earphones, earphone charging cases, and two electronic pens used to draw on electronic tablets. These particular devices are of interest because, like mobile phones, they are of a size and shape to fit in a breast pocket adjacent to where many cardiovascular devices are implanted.

The study joins several previous studies that have shown the same risk, but this study used three-dimensional (3D) mapping of the magnetic field rather than a one-axis sensor, which is a standard adopted by the U.S. Food and Drug Administration, according to the investigators.
 

3D mapping assessment used

Because of the 3D nature of magnetic fields, 3D mapping serves as a better tool to assess the risk of the magnetic force as the intensity gradient diminishes with distance from the source, the authors contended. The 3D maps used in this study have a resolution to 2 mm.

The ex vivo measurements of the magnetic field, which could be displayed in a configurable 3D volume in relation to the electronic products were performed on five different explanted cardioverter defibrillators from two manufacturers.

In the ex vivo setting, the ability of the earphones, earphone charging cases, and electronic pens to interfere with defibrillator function was compared to that of the Apple iPhone 12 Max, which was the subject of a small in vivo study published in 2021. When the iPhone 12 Max was placed on the skin over a cardiac implantable device in that study, clinically identifiable interference could be detected in all 3 patients evaluated.

Based on previous work, the International Organization for Standardization has established that a minimal field strength of 10 G is needed to interfere with an implantable device, but the actual risk from any specific device is determined by the distance at which this strength of magnetic field is projected.

In the 3D analysis, the 10-G intensity was found to project 20 mm from the surface of the ear phones, ear phone charging case, and one of the electronic pens and to project 29 mm from the other electronic pen. When tested against the five defibrillators, magnetic reversion mode was triggered by the portable electronics at distances ranging from 8 to 18 mm.

In an interview, Dr. Knecht explained that this study adds more devices to the list of those associated with potential for interfering with implantable cardiovascular devices, but added that the more important point is that any device that contains magnets emitting a force of 10 G or greater for more than a few inches can be expected to be associated with clinically meaningful interference. The devices tested in this study were produced by Apple and Microsoft, but a focus on specific devices obscures the main message.

“All portable electronics with an embedded permanent magnet creating a 10-G magnetic field have a theoretical capability of triggering implantable devices,” he said.

For pacemakers, the interference is likely to trigger constant pacing, which would not be expected to pose a significant health threat if detected with a reasonable period, according to Dr. Knecht. Interference is potentially more serious for defibrillators, which might fail during magnetic interference to provide the shock needed to terminate a serious arrhythmia.

The combination of events – interference at the time of an arrhythmia – make this risk “very low,” but Dr. Knecht said it is sufficient to mean that patients receiving an implantable cardiovascular device should be made aware of the risk and the need to avoid placing portable electronic products near the implanted device.

When in vivo evidence of a disturbance with the iPhone 12 was reported in 2021, it amplified existing concern. The American Heart Association maintains a list of electronic products with the potential to interfere with implantable devices on its website. But, again, understanding the potential for risk and the need to keep electronic products with magnets at a safe distance from cardiovascular implantable devices is more important than trying to memorize the ever-growing list of devices with this capability.

“Prudent education of patients receiving an implantable device is important,” said N.A. Mark Estes III, MD, professor of medicine in the division of cardiology at the University of Pittsburgh. However, in an interview, he warned that the growing list of implicated devices makes a complete survey impractical, and, even if achievable, likely to leave patients “feeling overwhelmed.”
 

In Dr. Estes’s practice, he does provide printed information about the risks of electronics to interfere with implantable devices as well as a list of dos and don’ts. He agreed that the absolute risk of interference from a device causing significant clinical complications is low, but the goal is to “bring it as close to zero as possible.”

“No clinical case of a meaningful interaction of an electronic product and dysfunction of an implantable device has ever been documented,” he said. Given the widespread use of the new generation of cellphones that contain magnets powerful enough to induce dysfunction in an implantable device, “this speaks to the fact that the risk continues to be very low.”

Dr. Knecht and coinvestigators, along with Dr. Estes, reported no potential conflicts of interest.

Building on several previous reports that the newest models of mobile telephones and other electronics that use magnets pose a threat to the function of defibrillators and other implantable cardiovascular devices, a new study implicates any device that emits a 10-gauss (G) magnetic field more than a couple of inches.

“Beside the devices described in our manuscript, this can be any portable consumer product [with magnets] like electric cigarettes or smart watches,” explained study author Sven Knecht, DSc, a research electrophysiologist associated with the department of cardiology, University Hospital Basel (Switzerland).

In the newly published article, the investigators evaluated earphones, earphone charging cases, and two electronic pens used to draw on electronic tablets. These particular devices are of interest because, like mobile phones, they are of a size and shape to fit in a breast pocket adjacent to where many cardiovascular devices are implanted.

The study joins several previous studies that have shown the same risk, but this study used three-dimensional (3D) mapping of the magnetic field rather than a one-axis sensor, which is a standard adopted by the U.S. Food and Drug Administration, according to the investigators.
 

3D mapping assessment used

Because of the 3D nature of magnetic fields, 3D mapping serves as a better tool to assess the risk of the magnetic force as the intensity gradient diminishes with distance from the source, the authors contended. The 3D maps used in this study have a resolution to 2 mm.

The ex vivo measurements of the magnetic field, which could be displayed in a configurable 3D volume in relation to the electronic products were performed on five different explanted cardioverter defibrillators from two manufacturers.

In the ex vivo setting, the ability of the earphones, earphone charging cases, and electronic pens to interfere with defibrillator function was compared to that of the Apple iPhone 12 Max, which was the subject of a small in vivo study published in 2021. When the iPhone 12 Max was placed on the skin over a cardiac implantable device in that study, clinically identifiable interference could be detected in all 3 patients evaluated.

Based on previous work, the International Organization for Standardization has established that a minimal field strength of 10 G is needed to interfere with an implantable device, but the actual risk from any specific device is determined by the distance at which this strength of magnetic field is projected.

In the 3D analysis, the 10-G intensity was found to project 20 mm from the surface of the ear phones, ear phone charging case, and one of the electronic pens and to project 29 mm from the other electronic pen. When tested against the five defibrillators, magnetic reversion mode was triggered by the portable electronics at distances ranging from 8 to 18 mm.

In an interview, Dr. Knecht explained that this study adds more devices to the list of those associated with potential for interfering with implantable cardiovascular devices, but added that the more important point is that any device that contains magnets emitting a force of 10 G or greater for more than a few inches can be expected to be associated with clinically meaningful interference. The devices tested in this study were produced by Apple and Microsoft, but a focus on specific devices obscures the main message.

“All portable electronics with an embedded permanent magnet creating a 10-G magnetic field have a theoretical capability of triggering implantable devices,” he said.

For pacemakers, the interference is likely to trigger constant pacing, which would not be expected to pose a significant health threat if detected with a reasonable period, according to Dr. Knecht. Interference is potentially more serious for defibrillators, which might fail during magnetic interference to provide the shock needed to terminate a serious arrhythmia.

The combination of events – interference at the time of an arrhythmia – make this risk “very low,” but Dr. Knecht said it is sufficient to mean that patients receiving an implantable cardiovascular device should be made aware of the risk and the need to avoid placing portable electronic products near the implanted device.

When in vivo evidence of a disturbance with the iPhone 12 was reported in 2021, it amplified existing concern. The American Heart Association maintains a list of electronic products with the potential to interfere with implantable devices on its website. But, again, understanding the potential for risk and the need to keep electronic products with magnets at a safe distance from cardiovascular implantable devices is more important than trying to memorize the ever-growing list of devices with this capability.

“Prudent education of patients receiving an implantable device is important,” said N.A. Mark Estes III, MD, professor of medicine in the division of cardiology at the University of Pittsburgh. However, in an interview, he warned that the growing list of implicated devices makes a complete survey impractical, and, even if achievable, likely to leave patients “feeling overwhelmed.”
 

In Dr. Estes’s practice, he does provide printed information about the risks of electronics to interfere with implantable devices as well as a list of dos and don’ts. He agreed that the absolute risk of interference from a device causing significant clinical complications is low, but the goal is to “bring it as close to zero as possible.”

“No clinical case of a meaningful interaction of an electronic product and dysfunction of an implantable device has ever been documented,” he said. Given the widespread use of the new generation of cellphones that contain magnets powerful enough to induce dysfunction in an implantable device, “this speaks to the fact that the risk continues to be very low.”

Dr. Knecht and coinvestigators, along with Dr. Estes, reported no potential conflicts of interest.

Low-value health care services that provide little or no benefit to patients are “common, potentially harmful, and costly,” and there is a critical need to reduce this kind of care, the American Heart Association said in a newly released scientific statement.

Each year, nearly half of patients in the United States will receive at least one low-value test or procedure, with the attendant risk of avoidable complications from cascades of care and excess costs to individuals and society, the authors noted. Reducing low-value care is particularly important in cardiology, given the high prevalence and costs of cardiovascular disease in the United States.

The statement was published online Feb. 22, 2022, in Circulation: Cardiovascular Quality and Outcomes.
 

High burden with uncertain benefit

“Cardiovascular disease is common and can present suddenly, such as a heart attack or abnormal heart rhythm,” Vinay Kini, MD, chair of the statement writing group and assistant professor of medicine at Weill Cornell Medicine, New York, said in a news release.

“Our desire to be vigilant about treating and preventing cardiovascular disease may sometimes lead to use of tests and procedures where the benefits to patients may be uncertain,” Dr. Kini said. “This may impose burdens on patients, in the form of increased risk of physical harm from the low-value procedure or potential complications, as well as follow-up care and out-of-pocket financial costs.”

For example, studies have shown that up to one in five echocardiograms and up to half of all stress tests performed in the United States may be rated as rarely appropriate, based on established guidelines for their use.

In addition, up to 15% of percutaneous coronary interventions (PCIs) are classified as rarely appropriate, the writing group said.

Annually, among Medicare fee-for-service beneficiaries, low-value stress testing in patients with stable coronary artery disease is estimated to cost between $212 million and $2.1 billion, while costs of PCI for stable CAD range from $212 million to $2.8 billion, the writing group noted.

“At best, spending on low-value care potentially diverts resources from higher-value services that would benefit patients more effectively at the same or reduced cost. At worst, low-value care results in physical harm in the form of preventable morbidity and mortality,” they said.

“Thus, reducing low-value care is one of the few patient-centered solutions that directly address both the need to control health care spending and the societal imperative to devote its limited resources to beneficial health care services that improve health,” they added.

The group outlines several ways to reduce low-value cardiovascular care targeting patients, providers, and payers/policymakers.

For patients, education and shared decision-making may help reduce low-value care and dispel misconceptions about the intended purpose of test or treatment, they suggested.

For clinicians, a “layered” approach to reducing low-value care may be most effective, such as through education, audit and feedback, and behavioral science tools (“nudges”) to shift behaviors and practices, they said.

For payers and policy leaders, interventions to reduce low-value care include national insurance coverage determinations; prior authorization; alternative payment models that reward lower costs and higher-quality health care; value-based insurance designs that financially penalize low-value care; and medical liability reform to reduce defensive medical practices.

Low-value cardiovascular care is a complex problem, the writing group acknowledged, and achieving meaningful reductions in low-value cardiovascular care will require a multidisciplinary approach that includes continuous research, implementation, evaluation, and adjustment while ensuring equitable access to care.

“Each approach has benefits and drawbacks,” Dr. Kini said. “For example, prior authorization imposes a large burden on health care professionals to obtain insurance approval for tests and treatments. Prior authorization and some value-based payment models may unintentionally worsen existing racial and ethnic health care disparities.

“A one-size-fits-all approach to reducing low-value care is unlikely to succeed; rather, acting through multiple perspectives and frequently measuring impacts and potential unintended consequences is critical,” he concluded.

The scientific statement was prepared by the volunteer writing group on behalf of the AHA’s Council on Quality of Care and Outcomes Research.

The research had no commercial funding. Dr. Kini disclosed no relevant financial relationships.

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

Low-value health care services that provide little or no benefit to patients are “common, potentially harmful, and costly,” and there is a critical need to reduce this kind of care, the American Heart Association said in a newly released scientific statement.

Each year, nearly half of patients in the United States will receive at least one low-value test or procedure, with the attendant risk of avoidable complications from cascades of care and excess costs to individuals and society, the authors noted. Reducing low-value care is particularly important in cardiology, given the high prevalence and costs of cardiovascular disease in the United States.

The statement was published online Feb. 22, 2022, in Circulation: Cardiovascular Quality and Outcomes.
 

High burden with uncertain benefit

“Cardiovascular disease is common and can present suddenly, such as a heart attack or abnormal heart rhythm,” Vinay Kini, MD, chair of the statement writing group and assistant professor of medicine at Weill Cornell Medicine, New York, said in a news release.

“Our desire to be vigilant about treating and preventing cardiovascular disease may sometimes lead to use of tests and procedures where the benefits to patients may be uncertain,” Dr. Kini said. “This may impose burdens on patients, in the form of increased risk of physical harm from the low-value procedure or potential complications, as well as follow-up care and out-of-pocket financial costs.”

For example, studies have shown that up to one in five echocardiograms and up to half of all stress tests performed in the United States may be rated as rarely appropriate, based on established guidelines for their use.

In addition, up to 15% of percutaneous coronary interventions (PCIs) are classified as rarely appropriate, the writing group said.

Annually, among Medicare fee-for-service beneficiaries, low-value stress testing in patients with stable coronary artery disease is estimated to cost between $212 million and $2.1 billion, while costs of PCI for stable CAD range from $212 million to $2.8 billion, the writing group noted.

“At best, spending on low-value care potentially diverts resources from higher-value services that would benefit patients more effectively at the same or reduced cost. At worst, low-value care results in physical harm in the form of preventable morbidity and mortality,” they said.

“Thus, reducing low-value care is one of the few patient-centered solutions that directly address both the need to control health care spending and the societal imperative to devote its limited resources to beneficial health care services that improve health,” they added.

The group outlines several ways to reduce low-value cardiovascular care targeting patients, providers, and payers/policymakers.

For patients, education and shared decision-making may help reduce low-value care and dispel misconceptions about the intended purpose of test or treatment, they suggested.

For clinicians, a “layered” approach to reducing low-value care may be most effective, such as through education, audit and feedback, and behavioral science tools (“nudges”) to shift behaviors and practices, they said.

For payers and policy leaders, interventions to reduce low-value care include national insurance coverage determinations; prior authorization; alternative payment models that reward lower costs and higher-quality health care; value-based insurance designs that financially penalize low-value care; and medical liability reform to reduce defensive medical practices.

Low-value cardiovascular care is a complex problem, the writing group acknowledged, and achieving meaningful reductions in low-value cardiovascular care will require a multidisciplinary approach that includes continuous research, implementation, evaluation, and adjustment while ensuring equitable access to care.

“Each approach has benefits and drawbacks,” Dr. Kini said. “For example, prior authorization imposes a large burden on health care professionals to obtain insurance approval for tests and treatments. Prior authorization and some value-based payment models may unintentionally worsen existing racial and ethnic health care disparities.

“A one-size-fits-all approach to reducing low-value care is unlikely to succeed; rather, acting through multiple perspectives and frequently measuring impacts and potential unintended consequences is critical,” he concluded.

The scientific statement was prepared by the volunteer writing group on behalf of the AHA’s Council on Quality of Care and Outcomes Research.

The research had no commercial funding. Dr. Kini disclosed no relevant financial relationships.

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

Low-value health care services that provide little or no benefit to patients are “common, potentially harmful, and costly,” and there is a critical need to reduce this kind of care, the American Heart Association said in a newly released scientific statement.

Each year, nearly half of patients in the United States will receive at least one low-value test or procedure, with the attendant risk of avoidable complications from cascades of care and excess costs to individuals and society, the authors noted. Reducing low-value care is particularly important in cardiology, given the high prevalence and costs of cardiovascular disease in the United States.

The statement was published online Feb. 22, 2022, in Circulation: Cardiovascular Quality and Outcomes.
 

High burden with uncertain benefit

“Cardiovascular disease is common and can present suddenly, such as a heart attack or abnormal heart rhythm,” Vinay Kini, MD, chair of the statement writing group and assistant professor of medicine at Weill Cornell Medicine, New York, said in a news release.

“Our desire to be vigilant about treating and preventing cardiovascular disease may sometimes lead to use of tests and procedures where the benefits to patients may be uncertain,” Dr. Kini said. “This may impose burdens on patients, in the form of increased risk of physical harm from the low-value procedure or potential complications, as well as follow-up care and out-of-pocket financial costs.”

For example, studies have shown that up to one in five echocardiograms and up to half of all stress tests performed in the United States may be rated as rarely appropriate, based on established guidelines for their use.

In addition, up to 15% of percutaneous coronary interventions (PCIs) are classified as rarely appropriate, the writing group said.

Annually, among Medicare fee-for-service beneficiaries, low-value stress testing in patients with stable coronary artery disease is estimated to cost between $212 million and $2.1 billion, while costs of PCI for stable CAD range from $212 million to $2.8 billion, the writing group noted.

“At best, spending on low-value care potentially diverts resources from higher-value services that would benefit patients more effectively at the same or reduced cost. At worst, low-value care results in physical harm in the form of preventable morbidity and mortality,” they said.

“Thus, reducing low-value care is one of the few patient-centered solutions that directly address both the need to control health care spending and the societal imperative to devote its limited resources to beneficial health care services that improve health,” they added.

The group outlines several ways to reduce low-value cardiovascular care targeting patients, providers, and payers/policymakers.

For patients, education and shared decision-making may help reduce low-value care and dispel misconceptions about the intended purpose of test or treatment, they suggested.

For clinicians, a “layered” approach to reducing low-value care may be most effective, such as through education, audit and feedback, and behavioral science tools (“nudges”) to shift behaviors and practices, they said.

For payers and policy leaders, interventions to reduce low-value care include national insurance coverage determinations; prior authorization; alternative payment models that reward lower costs and higher-quality health care; value-based insurance designs that financially penalize low-value care; and medical liability reform to reduce defensive medical practices.

Low-value cardiovascular care is a complex problem, the writing group acknowledged, and achieving meaningful reductions in low-value cardiovascular care will require a multidisciplinary approach that includes continuous research, implementation, evaluation, and adjustment while ensuring equitable access to care.

“Each approach has benefits and drawbacks,” Dr. Kini said. “For example, prior authorization imposes a large burden on health care professionals to obtain insurance approval for tests and treatments. Prior authorization and some value-based payment models may unintentionally worsen existing racial and ethnic health care disparities.

“A one-size-fits-all approach to reducing low-value care is unlikely to succeed; rather, acting through multiple perspectives and frequently measuring impacts and potential unintended consequences is critical,” he concluded.

The scientific statement was prepared by the volunteer writing group on behalf of the AHA’s Council on Quality of Care and Outcomes Research.

The research had no commercial funding. Dr. Kini disclosed no relevant financial relationships.

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