Ventricular Arrhythmia After Myocarditis in Sportsman (ARYMYS)

The study aims to assess the prevalence of ventricular rhythmic disorder after an acute myocarditis in sportsmen. 50 patients with acute myocarditis, confirmed by MRI, will be assessed by ECG Holter and Treadmill stress test during a 1-year follow-up.

Ventricular arrhythmia will be assessed by ECG Holter and during treadmill stress test, both being performed 3 months and 1 year after acute myocarditis

any ventricular tachycardia (triplet or more), ventricular fibrillation (observed on ECG Holter or during stress test)

CV death, sudden cardiac death, cardiac graft or haemodynamic support, hospitalisation for heart failure, new event of myocarditis

Inclusion Criteria: acute myocarditis, diagnosed on the association of (a) recent viral infection (upper airway, gastro-intestinal) , (b) troponin increase, and (c) chest pain AND myocarditis confirmed by cardiac magnetic resonance 2 out of 3 Lake Louise criteria, either T2 hypersignal, early enhancement or late gadolinium enhancement. regular physical activity, recreational or competitive: >=4 hours weekly written informed consent Exclusion Criteria: coronary artery disease acute inflammatory cardiomyopathy (sarcoidosis, fulminant myocarditis, Tako Tsubo, eosinophilic myocarditis, Lyme disease) history of myocarditis contra-indication to cardiac MRI patient unable to perform a treadmill stress test

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