Successful ablation of a right epicardial accessory pathway via the right ventricular diverticulum in a patient with Wolff-Parkinson-White syndrome

• Published in: Journal of cardiovascular electrophysiology Vol. 34; no. 5; pp. 1302 - 1304
• Main Authors: Zhang, Zhijun, Ma, Changsheng, Li, Xuewen, Qu, Lijuan, Zhao, Bingye, Bai, Rong
• Format: Report
• Language: English
• Published: 01.05.2023
• ISSN: 1540-8167
• DOI: 10.1111/jce.15899

INTRODUCTIONWe describe one rare case of successful ablation of a right epicardial accessory pathway (AP) via the right ventricular diverticulum in a patient with Wolff-Parkinson-White syndrome. METHODSA 42-year-old woman was referred to the hospital for a catheter ablation of Wolf-Parkinson-White syndrome. The earliest activation was shown to be present in the region of the tricuspid annulus. However, ablation had no effect on the AP. RESULTSWe decided to do a selected angiography, in which a big diverticulum near the right tricuspid annulus was shown to be present. Ablation in this region successfully repressed the AP without any recurrences within a follow-up period of 12 months. CONCLUSIONThe ventricular diverticulum-mediated AP is a novel variant of pre-excitation. It can serve as an anatomical substrate of supraventricular tachycardia, and can be ablated endocardially using an irrigation tip catheter within the diverticulum.