Transvenous ethanol ablation in epicardial localization of ventricular arrhythmias: a case report.

This approach is used when an epicardial location of the substrate of arrhythmia is suspected and ablation through the right ventricular outflow tract, left coronary cusp, and great cardiac vein fails. The total effectiveness of eliminating ventricular arrhythmia increases if it is possible to use endo- and epicardial methods of mapping and ablation. In clinics with extensive experience in this area, ethanol ablation of epicardial ventricular arrhythmia is safe and effective.