T波峰-末间期、T波峰-末间期离散度与心肌缺血的关系  

Relationships of Tp-Te and Tp-Ted to Myocardial Ischemia

作　　者：陈静[1] 孙国芳[1] 丁颖[1] 黄慧萍[1] 汤俐雯[1] 

机构地区：[1]南昌大学第二附属医院心电诊断室,南昌330006

出　　处：《南昌大学学报（医学版）》2015年第2期38-39,共2页Journal of Nanchang University：Medical Sciences

基　　金：江西省卫生厅科技计划(20091105)

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。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 re-lationships of myocardial ischemia to Tp-Te interval and ventricular transmural repolarization dis-persion.Methods Fifty-six patients with coronary arteriography-confirmed coronary artery ste-nosis 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 posi-tive treadmill exercise test group.In addition,56 healthy subjects who had a negative treadmill ex-ercise 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.

关 键 词：冠心病 心肌缺血 TP-TE间期 Tp-Te离散度 平板运动试验 

分 类 号：R541.4[医药卫生—心血管疾病]