U.K. researchers analyzed DNA sequencing data of 336 people with acute myocarditis and 1,053 healthy people. Participants were followed for five years. Data, collected between 2016 and 2018, showed 8 percent — or 1 in 13 — of participants with myocarditis shared genetic variants associated with cardiomyopathies.
Myocarditis, an inflammation of the heart, frequently is triggered by a virus. It can resolve on its own or be treated but sometimes leads to long-term damage and death. Postmortem studies suggest myocarditis may be responsible for 3 percent to 12 percent of all sudden cardiac deaths, according to the American Heart Association.
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