Decrement Evoked Potential Mapping Basis of a Mechanistic Strategy for Ventricular Tachycardia Ablation

摘要

Background Substrate-based mapping for ventricular tachycardia (VT) ablation is hampered by its inability to determine critical sites of the VT circuit. We hypothesized that those potentials, which delay with a decremental extrastimulus (decrement evoked potentials or DEEPs), are more likely to colocalize with the diastolic pathways of VT circuits.