高血压左心室肥大患者T波峰-末间期的检测

Detection of T peak-T end Interval in Hypertension Patients With Left Ventricular Hypertrophy

目的:检测高血压左心室肥大患者的T波峰-末间期(Tp-Te间期)及心率校正的Tp-Te/(R-R)～(1/2)间期,并探讨其可能的临床意义。方法:依据超声心动图测定的左室重量指数(LVMI)分为正常组和左室肥大组。比较正常组与高血压左室肥大组Tp-Te间期及Tp-Te/(R-R)～(1/2)间期的差异。结果:正常组男性Tp-Te间期及Tp-Te/(R-R)～(1/2)间期长于女性(P<0.05);左室肥大组男、女性Tp-Te间期及Tp-Te/(R-R)～(1/2)间期均比正常组明显延长(P<0.05,P<0.01)。结论:高血压左心室肥大患者的Tp-Te间期及Tp-Te/(R-R)～(1/2)间期比正常人明显延长,可能成为预测此类患者发生心律失常事件的临床指标之一。

Objective：To investigate T peak-T end （Tp-Te） interval and the heart rate corrected Tp-Te/√R-R,and the possible clinical significance of the two indexes in hypertension patients with left ventricular hypertrophy （LVH）. Method： Patients were divided into normal group and LVH group according to the left ventricular mass index （LVMI） determined by echocardiograrn. Differences of Tp-Te and Tp-Te/√R-R interval were compared between the two groups. Results： Tp-Te and Tp-Te/√R-R interval were longer in male than those in female in normal group （P〈0. 05） ; Tp-Te and Tp-Te/√R-R were significantly longer in LVH group than those in normal group for both sexes（P〈0. 05, P〈0. 01 ）. Conclusions： Tp-Te and Tp-Te/√R-R interval were significantly longer in hypertension pa- tients with LVH than those in normal group. Tp-Te and Tp-Te/√R-R interval may be regarded as one of the indexes to predict the risk of oceurence of ventrieular arrhythmia events in hypertension patients with LVH.