左心室机械同步性与左束支阻滞的关系  

The relationship between left ventricular mechanical synchronization and left bundle branch block

作　　者：刘志泉 苏浩 沈伟 杨冬妹 陈康玉 宇霏 王齐 吴国宏 徐健[1] 严激 Liu zhiquan;Su hao;Shen wei;Yang dongmei;Chen kangyu;Yu fei;Wang qi;Wu guohong;Xu jian;Yan ji(Department of Cardiology,The First Affiliated Hospital of University of Science and Technology of China,Hefei,Anhui,230001,China)

机构地区：[1]中国科学技术大学附属第一医院(安徽省立医院)

出　　处：《临床心电学杂志》2021年第5期326-328,334,共4页Journal of Clinical Electrocardiology

基　　金：2016年科技部中央引导地方科技发展专项(编号:2016080802D113)。

摘　　要：目的探究依据传统标准和新标准诊断的左束支阻滞,及其与超声心动图评价的心脏机械失同步指标的一致性。方法选取2018年6月至2019年6月于我院植入CRT-P/D装置的患者39例,依据不同标准分为"真性"LBBB组(真LBBB)和"假性"LBBB组(假LBBB),采用超声心动图技术评价两组患者心脏同步性指标。结果 M型超声、组织多普勒和实时三维超声检查结果均显示,"真性"LBBB组左心室收缩失同步显著大于"假性"LBBB组,差异有统计学意义。结论"真性"LBBB组左心室收缩失同步显著大于"假性"LBBB组。Objective To explore the correlation between ECG left bundle-branch block and left ventricular mechanical dyssynchrony by echocardiography in patients with chronic heart failure. Methods A retrospective analysis was conducted on 39 patients with chronic heart failure admitted to our hospital from June 2018 to June2019. They were divided into “true”LBBB(t-LBBB) and “false”LBBB(f-LBBB) group according to QRS morphology. A comparison was made according to the two groups. Results Patients with “true”LBBB(n=21) had a greater left ventricular mechanical dyssynchrony compared with patients with “false”LBBB(n=18)(p<0.01).Conclusions Left ventricular mechanical dyssynchrony detected by echocardiography is greater in patients with“true”LBBB than in those with“false”LBBB.

关 键 词：超声心动图 左束支阻滞 机械失同步 

分 类 号：R541.7[医药卫生—心血管疾病] R540.41[医药卫生—内科学]