Assessment of left ventricular systolic dyssynchrony for heart failure patients with QRS complexes&lt;120ms by tissue velocity imagine

FENG Jing; et al.

doi:10.13406/j.cnki.cyxb.2007.12.008

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Assessment of left ventricular systolic dyssynchrony for heart failure patients with QRS complexes<120ms by tissue velocity imagine

更新时间：2024-01-17

- Assessment of left ventricular systolic dyssynchrony for heart failure patients with QRS complexes<120ms by tissue velocity imagine
- Journal of Chongqing Medical University Issue 12, Pages: 1304-1307(2007)
- 作者机构：
  
  1. 重庆医科大学附属第一医院心内科
  2. 重庆医科大学附属第一医院心内科,重庆,400016
- 作者简介：
- 基金信息：
- DOI：10.13406/j.cnki.cyxb.2007.12.008
  CLC： R541.6
- Published：2007，
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[1]冯静,秦俭,廖慧,王志华,陈运贞,高电萨.组织速度显像对QRS波＜120ms心衰患者左心室收缩不同步的评价[J].重庆医科大学学报,2007(12):1304-1307.

FENG Jing, et al.. Assessment of left ventricular systolic dyssynchrony for heart failure patients with QRS complexes<120ms by tissue velocity imagine. [J]. Journal of Chongqing Medical University (12):1304-1307(2007)
[1]冯静,秦俭,廖慧,王志华,陈运贞,高电萨.组织速度显像对QRS波＜120ms心衰患者左心室收缩不同步的评价[J].重庆医科大学学报,2007(12):1304-1307. DOI： 10.13406/j.cnki.cyxb.2007.12.008.

FENG Jing, et al.. Assessment of left ventricular systolic dyssynchrony for heart failure patients with QRS complexes<120ms by tissue velocity imagine. [J]. Journal of Chongqing Medical University (12):1304-1307(2007) DOI： 10.13406/j.cnki.cyxb.2007.12.008.

摘要

目的:应用组织速度显像（TVI）技术评价QRS波

120ms心衰患昔的左心室收缩同步性。方法:本研究共收入18例正常人（对照组）和EF≤45%（Simpson法测定）且QRS波

120ms的心衰患者（CHF组）20例利用TVI获取左心空心尖切面心肌各节段多普勒组织速度曲线

测量收缩达峰时间（T

）

计算12节段T

的标准差（T

-SD）和极差（T

max-min）;测量QRS波起点到射血波起点的时间（Q-Sb）

计算心室内同步性指数（FSI）和各室壁壁内的同步性指数（RSI）。结果:T

-SD、F

max-min和TSI在对照组和CHF组分别为（8.5±4.3）ms vs（39.2±11.5）ms、22.2±12.6)ms vs（111.5±28.9）ms、（9.4±2.9）ms vs（23.1±6.6）ms （P值均

0.0001）。结论:QRS波

120ms的心衰患者同样存在左室收缩不同步

故QRS波时限不能准确地反应左室运动的不同步性

而TVI技术可精确评价心室收缩的不同步性。

Abstract

Objective:To assess left ventricular systolic dssynehrony for heart failure patients with QRS Complexes<120ms by tissue velocity imagine (TVI). Methods:Eighteen normal subjects (Group Control) and twenty heart failure patients with ejection fraction (EF)≤45% (measured by Simpson method) and QRS complexes<120ms (Group CHF) were enrolled in the study. First

left ventricular tissue Doppler velocity curves were acquired along left ventricular apex viwe in each segment of different walls. After the lime to peak myocardial systolic contraction (Ts) was measured

the standard deviatio and maximal difference of Ts of the 12 left ventricular segments were calculaled (Ts-SDandTsmax-min). Furthermore

the duration from the beginning of QRS complexes to that of systolic wave (S)——Q-Sb was measured

total synchronicity index(TSI) and each regional synchronicity index (RSI) were caleulated. Result:Ts-SD、Tsmax-min and TSI in Group control and CHF were(8.5±4.3)ms vs(39.2±11.5)ms、(22.2±12.6)ms vs(111.5±28.9)ms、(9.4±2.9)ms vs(23±6.6)ms(P<0.0001). Conclusion:Left ventricular systolic dyssynchrony also exists in heart failure patients with QRS complexes<120ms. QRS duration can not be used as a determinant to assess left ventricular systolic dyssynchrony. On the other hand. TVI can assess left ventricular systolic dyssvnchrony precisely.

关键词

组织速度显像心力衰竭不同步

Keywords

Tissue velocity imagineheart failureDyssynchrony

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Assessment of left ventricular systolic dyssynchrony for heart failure patients with QRS complexes<120ms by tissue velocity imagine

DOI：10.13406/j.cnki.cyxb.2007.12.008

摘要

Abstract

关键词

Keywords

references