Successful ablation with ethanol infusion to coronary sinus branch in a case with scar-related ventricular tachycardia with left ventricular epicardial reentrant circuit

摘要

Intracardiac electrogram on implantable cardioverter-defibrillator recording showed an initiation of ventricular tachycardia with a cycle length of 280 ms. Twelve-lead electrocardiogram (ECG) during atrial pacing showed narrow QRS morphology (left). Meanwhile, 12-lead ECG during sustained monomorphic ventricular tachycardia showed wide QRS morphology with right bundle branch block and superior axis (right).