Po-671-04 rate of change of initial intrinsicoid deflection predicts site of origin of endocardial versus epicardial ventricular tachycardia

Electrophysiological mapping and ablation of ventricular tachycardia (VT) of epicardial origin requires precise definition of VT morphology to maximize successful outcomes. Several studies have published morphological characteristics derived from the 12-lead Electrocardiogram (ECG) that can be used to predict whether a VT is epicardial in origin. Unfortunately, for many of these criteria, when scaled to clinical practice the generalizability is limited.