冠心病伴室性心律失常与左室射血分数及QT离散度的关系

The Relationship of Coronary Heart Disease Accompanied by Ventricular Arrhythmia with Left Ventricular Ejection Fraction and QT Dispersion

目的:探讨冠心病(CHD)伴室性心律失常与左室射血分数(LVEF)及QT离散度(QTd)的关系。方法:测量和分析56例CHD伴室性心律失常患者(CHD组)和53例正常人(对照组)的LVEF值及心电图最大QT间期(QTmax),最小QT间期(QTmin)。结果:CHD组的LVEF值和QTd分别为:(40.36±6.85)ms和(65.98±16.86)ms;对照组的LVEF值和QTd分别为:(59.68±4.16)ms和(33.05±13.23)ms。CHD组与对照组之间比较差异具有显著性,P<0.01。结论:CHD伴室性心律失常与LVEF及QTd密切相关,LVEF和QTd可作为预测CHD伴室性心律失常的可靠指标。

Objective：To explore the relationship of coronary heart disease（CHD）accompanied by ventricular arrhythmia with LVEF and QT dispersion. Methods： The maximum QT duration（QT max） and the minimum QT duration（QT min） of 56 patients with coronary heart disease with ventricular arrhythmia （CHD group） and 53 cases of normal people （contrast group） QT dispersion and LVEF were measured and analyzed. Results：The LVEF and QTd of CHD group were （40.36±6.85）ms and （65.98±16.86）ms, while those of control group were （59.68±4. 16）ms and （33.05±13.23）ms. There was a significant difference between the two groups（P〈0.01）. Conclusion： CHD accompanied by ventricular arrhythmia may have a close relationship with LVEF and QTd have close relationship. LVEF and QTd are reliable indexes in predicting CHD with ventricular arrhythmia.