Department of Cardiology, Faculty of Medical Sciences, University of Osaka, Osaka, Japan.
J Cardiovasc Electrophysiol. 2024 Apr;35(4):862-866. doi: 10.1111/jce.16207. Epub 2024 Feb 7.
Persistent left superior vena cava (PLSVC) is one of the major sources of triggers and drivers of atrial fibrillation (AF). There has been no established PLSVC ablation procedure to eliminate the arrhythmogenicity along the entire length of PLSVC.
A 70-year-old woman with a history of two previous catheter ablations for AF, mitral valvuloplasty, and an unroofed coronary sinus-type atrial septal defect closure underwent the redo AF ablations. The AF trigger and driver were identified within the patient's enlarged PLSVC. The AF was treated by complete PLSVC free wall isolation.
Complete PLSVC free wall isolation may be an effective ablation method to eliminate the arrhythmogenicity along the entire length of the PLSVC.
永存左上腔静脉（PLSVC）是心房颤动（AF）的主要触发源和驱动源之一。目前尚无确定的 PLSVC 消融程序可以消除 PLSVC 全长的心律失常性。
一名 70 岁女性，有两次 AF 导管消融、二尖瓣瓣膜成形术和未覆盖冠状窦型房间隔缺损闭合的既往病史，进行了再发性 AF 消融。在患者扩大的 PLSVC 内确定了 AF 触发源和驱动源。通过完全 PLSVC 游离壁隔离来治疗 AF。
完全 PLSVC 游离壁隔离可能是消除 PLSVC 全长心律失常性的有效消融方法。
