左心室室间隔瘢痕对左束支起搏术实现左束支夺获的影响  

Effect of ventricular septal scars on the capture of left bundle branch during left bundle branch pacing

作　　者：殷凡 施夏韵 刘王琰 徐怡[1] 王云飞 王垚[2] 朱晓梅[1] YIN Fan;SHI Xiayun;LIU Wangyan;XU Yi;WANG Yunfei;WANG Yao;ZHU Xiaomei(Department of Radiology,the First Affiliated Hospital of Nanjing Medical University,Nanjing 210029,China;Department of Cardiology,the First Affiliated Hospital of Nanjing Medical University,Nanjing 210029,China)

机构地区：[1]南京医科大学第一附属医院放射科,江苏南京210029 [2]南京医科大学第一附属医院心血管内科,江苏南京210029

出　　处：《南京医科大学学报（自然科学版）》2024年第10期1377-1382,共6页Journal of Nanjing Medical University(Natural Sciences)

基　　金：国家自然科学基金(82302163);南京医科大学第一附属医院青年学者培养基金(PY2022036)。

摘　　要：目的:通过心脏磁共振探索室间隔瘢痕对左束支起搏实现左束支夺获的影响。方法:回顾性分析52例拟接受左束支起搏的患者,根据是否实现左束支夺获分为失败组和成功组,并通过心脏磁共振对室间隔瘢痕分节段进行评分。结果:上室间隔瘢痕评分是预测左束支夺获成功与否的独立预测因子。当上室间隔的瘢痕<25%,左束支夺获的成功率为100%。而当瘢痕≥50%,左束支夺获的失败率为100%。结论:采用心脏磁共振评估上室间隔瘢痕有助于预测左束支起搏手术成功与否,为手术的顺利实施提供可靠的参考依据。Objective:To investigate the effect of ventricular septal scars on the capture of left bundle branch during left bundle bracn pacing(LBBP)by cardiac magnetic resonance imaging(CMR).Methods:A retrospective analysis was conducted on 52 patients intendea for LBBP,who were divided into a failure group and a success group based on whether the capture of left bundle branch was achieved.Segmental score of septal scarring was performed using CMR.Results:The score of the upper ventricular septal scar was an independent predictor of the success of LBBP capture.When the scar of the upper ventricular septum was less than 25%,the success rate of LBBP capture was 100%.Howerver,when the scar was equal to or more than,the failure rate of LBBP capture was 100%.Conclusion:Evaluating upper ventricular septal scars using CMR helps predict the success of LBBP capture,providing a reliable reference for the smooth execution of the surgery.

关 键 词：左束支起搏 瘢痕评分 左室室间隔 左束支夺获 心脏磁共振 

分 类 号：R445.2[医药卫生—影像医学与核医学]