From the Journals

Myocarditis higher with Moderna COVID vax in young men


 

FROM JAMA CARDIOLOGY

What to advise patients?

In an accompanying Editor’s Note, Ann Marie Navar, MD, University of Texas Southwestern Medical Center, Dallas, who is editor of JAMA Cardiology, and Robert Bonow, MD, Northwestern University Feinberg School of Medicine, Chicago, who is deputy editor of JAMA Cardiology, try to explain how these data can inform the way health care professionals communicate with their patients about vaccination.

Dr. Ann Marie Navar, associate professor of cardiology at the University of Texas, Dallas

Dr. Ann Marie Navar

They point out the “good news,” that older adults who are at highest risk for COVID-19 complications appear to be at extremely low risk for vaccine-associated myocarditis.

They note that for both men and women older than 40 years, the excess number of cases of myocarditis after vaccination was fewer than two in 100,000 vaccinees across all vaccines studied, and the death toll from COVID-19 in the United States as of March was more than 200 per 100,000 population.

“Given the high rates of morbidity and mortality from COVID-19 infection in older adults and the efficacy of the vaccine in preventing severe infection and death, the benefits of immunization in those older than 40 years clearly outweigh the risks,” the editors say.

But given these data in young men, they suggest that health care professionals consider recommending the Pfizer vaccine over the Moderna vaccine for certain populations, including young men and other individuals for whom concerns about myocarditis present a barrier to immunization.

The editors also point out that although the risk for myocarditis after COVID-19 immunization is real, this low risk must be considered in the context of the overall benefit of the vaccine.

“At the individual level, immunization prevents not only COVID-19-related myocarditis but also severe disease, hospitalization, long-term complications after COVID-19 infection, and death. At the population level, immunization helps to decrease community spread, decrease the chances of new variants emerging, protect people who are immunocompromised, and ensure our health care system can continue to provide for our communities,” they conclude.

Dr. Ljung reports grants from Sanofi Aventis paid to his institution outside the submitted work and personal fees from Pfizer outside the submitted work. Dr. Navar reports personal fees from Pfizer and AstraZeneca, outside the scope of this work.

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

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