Concurrent Exercise-Associated Ventricular Complexes and a Prolonged QT Interval are Associated with Evidence of Myocarditis

Abstract

Background: Precise myocardial tissue characterization in subjects with exercise-associated ventricular ectopy and prolonged QT interval but no obvious structural heart disease might facilitate further risk stratification. There is no data assessing QT intervals in patients with exercise-associated premature ventricular complexes (PVCs). Cardiovascular magnetic resonance (CMR) enables us to non-invasively assess myocardial scar and oedema. The purpose of our study was to assess the QT intervals in patients with exercise-associated premature ventricular complexes (PVCs).