Three-quarters of people who died of COVID-19 harbored the SARS-CoV-2 virus in their hearts, according to the most detailed study of cardiac tissue to date. Those people were also more likely than patients without cardiac invasion to experience abnormal heart rhythms before they died. The study offers insight into how the disease may damage the heart—and how certain treatments may help. The finding “paints a really nice picture” of the connection between the virus and heart problems, says Joseph Maleszewski, a cardiovascular pathologist at the Mayo Clinic who was not involved with the study.

 

 

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