颜紫宁,范莉,芮逸飞

• 1:南京医科大学附属常州第二人民医院
• 2:南京医科大学附属常州第二人民医院

摘要(Abstract)：

目的应用组织多普勒技术评价不同QRS时限心力衰竭(心衰)患者心室收缩的同步性。方法选择48例心衰患者(心衰组),其中QRS时限≤120ms者25例(QRS时限≤120ms心衰组),QRS时限>120ms者23例(QRS时限>120ms心衰组),以及25名正常人(对照组),测量左、右心室射血前间期并计算其差值(IVD);用组织多普勒技术测量12节段心肌收缩达峰时间(Ts),并计算(1)12节段Ts最大差值(Ts-diff),(2)12节段Ts的标准差(Ts-SD),(3)基底段室间隔及左室侧壁的Ts之差(S-LW-diff)。结果QRS时限≤120ms心衰组、QRS时限>120ms心衰组和对照组IVD分别为31.00±15.21ms、61.33±27.67ms和15.89±7.56ms,Ts-diff分别为70.29±35.25ms、98.07±46.04ms和47.86±16.78ms,Ts-SD分别为24.64±12.84ms、33.61±15.58ms和15.24±5.65ms,S-LW-diff分别为54.28±20.81ms、76.32±42.38ms和32.62±20.34ms,两心衰组与对照组间差异均有统计学意义(均为P<0.05)。QRS时限≤120ms心衰组和QRS时限>120ms心衰组患者中均存在收缩不同步(44.00%比95.65%,P<0.05)。结论QRS时限正常的心衰患者中存在一定比例的收缩不同步,QRS时限增宽的心衰患者的不同步比例更高。

关键词(KeyWords)： 超声检查,多普勒,彩色;心力衰竭,充血性;心电描记术;心肌收缩

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 颜紫宁,范莉,芮逸飞

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