MedPageToday According to a population-based study in France, people with myocarditis following vaccination did not have the common mid-term complications associated with traditional myocarditis.
An 18-month follow-up study of people hospitalised for myocarditis during the COVID-19 pandemic showed that if people developed myocarditis soon after COVID-19 mRNA vaccination, overall clinical outcomes were more favourable compared with conventional myocarditis (weighted HR 0.55, 95% CI 0.36-0.86).
Meanwhile, the risk of poor composite outcomes — hospital readmission for myopericarditis, other cardiac events, and all-cause death — was comparable between the post-COVID-19 myocarditis and traditional myocarditis groups (weighted HR 1.04, 95% CI 0.70-1.52), according to Laura Semenzato, MSc, statistician at Saint-Denis Cedex France in Paris, and colleagues. Continue Reading