Cross-Sectional Study Offers Clinical Phenotype of COVID-19 Vaccine-Related Myocarditis

A study led by Julia Smith from the Department of Health in Victoria, Australia, titled "Clinical phenotype of COVID-19 vaccine-associated myocarditis in Victoria, 2021&ndash;22: a cross-sectional study," was published in the Medical Journal of Australia on January 13, 2025. The research aimed to characterize myocarditis cases following COVID-19 vaccination, focusing on clinical presentations, diagnostic findings, and variations across age and sex.
This retrospective cross-sectional study analyzed 206 confirmed cases of myocarditis reported to the Surveillance of Adverse Events Following Vaccination in the community (SAEFVIC) in Victoria between February 22, 2021, and September 30, 2022. Cases were included if symptoms began within 14 days post-vaccination and met the Brighton Collaboration Criteria for myocarditis.