Vijayaraman Pugazhendhi
Geisinger Heart Institute, Wilkes Barre, PA, USA.
Indian Pacing Electrophysiol J. 2025 May-Jun;25(3):167-170. doi: 10.1016/j.ipej.2025.04.004. Epub 2025 Apr 22.
A 74-year-old man with nonischemic cardiomyopathy, LV ejection fraction (LVEF) of 20 % and left bundle branch block (LBBB) underwent successful cardiac resynchronization therapy defibrillator (CRT-D) implantation utilizing LBBP lead in the LV port. Despite normalization of LVEF at 6 months, patient presented with late lead dislodgment at 10 months post-implant and decline in LV function. LV capture management algorithm was inactive due to sensing of conducted beat as ventricular fibrillation sensed event. Removal and replacement of LBBP lead resulted in recovery of LV function.
一名74岁男性，患有非缺血性心肌病，左心室射血分数（LVEF）为20%，存在左束支传导阻滞（LBBB），在左心室端口使用左束支起搏（LBBP）导线成功植入心脏再同步化治疗除颤器（CRT-D）。尽管6个月时LVEF恢复正常，但患者在植入后10个月出现导线晚期脱位，左心室功能下降。由于将传导的搏动感知为心室颤动感知事件，左心室捕捉管理算法未激活。移除并更换LBBP导线后，左心室功能恢复。
