【摘要】 目的对冠心病患者T波峰-末间期(Tp-Te间期)和Tp-Te离散度(Tp-Ted)进行测定,探讨心肌缺血与Tp-Te间期、心室肌跨壁复极离散度的关系,寻找一种便捷的观察指标。方法选择2010年1月至2012年6月在南昌大学第二附属医院做平板运动试验阳性,并住院行冠状动脉造影证实存在冠状动脉狭窄的冠心病患者56例(冠心病组)及健康体检者(行平板运动试验阴性者)56例(正常对照组),分别测量2组Tp-Te间期和Tp-Ted。结果与正常对照组比较,冠心病组Tp-Te间期显著延长,Tp-Ted明显增大(P<0.05)。结论心肌缺血时,Tp-Te间期和Tp-Ted均增大,Tp-Te间期和Tp-Ted可作为反映跨壁复极离散度的无创性指标。更多还原

【Abstract】 Objective To measure the interval between the peak and end of T wave(Tp-Te)and its discrete degree(Tp-Ted)in patients with coronary heart disease,and to investigate the relationships of myocardial ischemia to Tp-Te interval and ventricular transmural repolarization dispersion.Methods Fifty-six patients with coronary arteriography-confirmed coronary artery stenosis who had a positive treadmill exercise test and were hospitalized in the Second Affiliated Hospital of Nanchang University between January 2010 and June 2012 were selected as the positive treadmill exercise test group.In addition,56 healthy subjects who had a negative treadmill exercise test were selected as the control group.Tp-Te interval and Tp-Ted were measured in both groups.Results Compared with healthy subjects,both Tp-Te interval and Tp-Ted significantly increased in patients with coronary heart disease(P<0.05).Conclusion Both Tp-Te interval and Tp-Ted increased in myocardial ischemia.Therefore,Tp-Te interval and Tp-Ted can be used as the non-invasive indexes reflecting transmural dispersion of repolarization.更多还原