Assessment of ventricular repolarization inhomogeneity in patients with mitral valve prolapse: value of T wave peak to end interval.

Mitral valve prolapse (MVP) has been long known for causing susceptibility for ventricular arrhythmogenesis, and this risk was evaluated by various methods, mostly by using QT interval related measurements on surface electrocardiogram. T wave peak to end (Tp-e) interval is a relatively new marker for ventricular arrhythmogenesis and repolarization heterogeneity. Prolongation of this interval represents a period of potential vulnerability to re-entrant ventricular arrhythmias.