C84 OUTCOME AND MORPHO–FUNCTIONAL CHANGES ON CARDIAC MAGNETIC RESONANCE IN PATIENT WITH ACUTE MYOCARDITIS FOLLOWING MRNA COVID 19 VACCINATION

摘要: Background MessengerRNA (mRNA) COVID–19 vaccination has been associated with a higher–than–expected occurrence of acute myocarditis. Scarce information is available on mid–term prognosis and changes in cardiac function, volumes, and tissue characterization on cardiac magnetic resonance (CMR). Methods Retrospective, multicenter study including patients with a definite diagnosis of acute myocarditis within 30 days from mRNA COVID–19 vaccination. The diagnosis is based on endomyocardial biopsy (EMB) or autopsy or by the coexistence of positive biomarkers (troponin >99th upper reference limit or elevated creatine kinase myocardial band [CK–MB]) and cardiac MRI findings consistent with AM according to the 2018 updated Lake Louise Criteria. Results 77 patients (median age 25 years [IQR 20–35], 15% female) were included and …