冠状动脉病变对QT间期离散度的影响

doi:吉林省科技厅科技发展项目资助课题（200305

冠状动脉病变对QT间期离散度的影响

王志，赵利华^*，华芳，姜亚秋

吉林大学第一医院心血管内科，吉林长春130021

收稿日期:2005-10-18 修回日期:1900-01-01 出版日期:2006-09-28 发布日期:2006-09-28
通讯作者: 赵利华

Effect of coronary artery disease on QT dispersion

WANG Zhi, ZHAO Li-hua^*, HUA Fang,JIANG Ya-qiu

Department of Cardiology, First Hospital, Jilin University, Changchun 130021, China

Received:2005-10-18 Revised:1900-01-01 Online:2006-09-28 Published:2006-09-28
Contact: ZHAO Li-hua

摘要/Abstract

摘要： 目的：观察冠状动脉病变对QT间期离散度（QTd）的影响。方法：测量245例自愿行冠状动脉造影患者的QTd、QTcd，观察冠状动脉狭窄程度、病变血管数及与QTd的关系。结果：冠脉狭窄组QTd、QTcd显著大于冠脉无狭窄组 (P<0.001)，冠脉狭窄≥70%组QTd、QTcd明显大于冠脉狭窄<70%且≥50%组。QTd与冠脉狭窄程度呈正相关（r=0.84, P<0.05），狭窄程度越重，QTd越大。多支病变组QTd、QTcd虽比单支病变组有所延长，但两组比较差异无显著性（P>0.05）。结论：冠脉狭窄及程度对QTd有影响，冠脉病变血管数对QTd无影响。

关键词: QT间期离散度

Abstract: Objective To observe the effect of coronary artery disease on QT dispersion (QTd). Methods The QTd and QTcd in 245 patients underwent percutaneous coronary angiography (CAG) were analyzed. It was evaluated The relations between the QTd and the degree of coronary stenosis and the number of disease vessels. Results The QTd and QTcd were significantly prolonged in patients with coronary artery stenosis than those in patients with normal coronary artery(P<0.001). The QTd and QTcd also showed difference between patients whose coronary artery stenosis were ≥70% and patients whose coronary artery stenosis were <70% and ≥50% (P<0.01). The QTd was positively correlated with coronary stenosis degree(r=0.84，P<0.05). The seriouser the degree of coronary stenosis was, the greater the QTd was. The QTd and QTcd of the patients with single and multiple vessel lesion showed no significant difference(P>0.05). Conclusion There is no relation between the number of disease coronary artery and the QTd.

Key words: QT dispersion

中图分类号:

R541.4

王志，赵利华，华芳，姜亚秋. 冠状动脉病变对QT间期离散度的影响[J]. J4, 2006, 32(5): 895-897.

WANG Zhi, ZHAO Li-hua, HUA Fang,JIANG Ya-qiu. Effect of coronary artery disease on QT dispersion[J]. J4, 2006, 32(5): 895-897.