Viewpoint – Brazilian Guideline for Myocarditis

Diagnosis The criterion for the diagnostic confirmation of myocarditis defined by the 2013 European and Brazilian Myocarditis Guidelines is the identification of myocardial inflammation by endomyocardial biopsy (EMB)., This diagnostic criterion, used solely without the option of classifying clinical suspicion, does not mirror clinical practice in the real world, where only a minority of patients in specialized centers are referred for diagnostic investigation through EMB with diagnostic confirmation or exclusion, and most have the diagnosis of clinical suspicion of myocarditis. [...]