Radiofrequency catheter ablation of a sporadically occurring ventricular arrhythmia originating from the right ventricular outflow tract: A novel arrhythmia induction strategy involving atrial fibrillation provocation

摘要

Electrocardiogram showing sinus rhythm ( ) and atrial fibrillation (AF) ( ). Monomorphic premature ventricular contractions (PVCs) with a left bundle branch block–type QRS morphology and inferior axis with V transitional zone were observed in sinus rhythm. AF increased PVC frequency (top), and repetitive nonsustained ventricular tachycardia was documented (bottom).