原发性高血压患者Tp—Te间期和Tp-Te／QT比率的临床分析

目的：探讨原发性高血压患者Q—T间期、Tp—Te间期和Tp—Te／QT比率的临床意义。方法：随机抽取原发性高血压患者100例，并按1999年WHO／ISH高血压分类标准分为1、2、3级高血压，并与年龄性别相匹配的健康人100例作为对照观察，分别测量其V6导联Q-T间期与QTp间期，计算Tp—Te间期和Tp—Te／QT比率。结果：原发高血压组Tp—Te／QT比率和Tp—Te间期均高于对照组（P〈0．05），而两组Q-T间期无差异（P〉0．05）。1、2和3级组间Tp—Te间期和Tp-Te／QT比率无差异（P〉0．05）。结论：血压不是导致Tp—Te间期与Tp-Te／QT比率增大的唯一因素。

Clinical Analyses on Tp-Te Interval and Tp-Te/QT Ratio in the Patients with Primary Hypertension

Objective：To explore the clinical significance of Q-T interval ,Tp-Te interval and Tp-Te/QT ratio in the patients with primary hypertension. Methods： One hundred patients with primary hypertension were randomly selected and divided into three groups of grade I , II and m of hypertension according to blood pressure classification standard of WHO/ISH in 1999 and 100 age-and-sex-matched normal healthy individuals were used as contrast observation. They were measured the lead V6 Q-T interval and QTp interval and calculated the ratio of Tp-Te interval and Tp-Te/QT re- spectively. Results：The Tp-Te interval and Tp-Te/QT ratio in the primary hypertension group were significantly higher than those in the control group （P 〈 0.05 ） and there was no difference in Q-T interval of the two groups （P 〉 0.05 ）. There was no difference in Tp-Te interval and Tp-Te/QT ratio between the grade I , II and III groups （P 〉 0.05）. Conclusion：Blood pressure is not the only factor which results in Tp-Te interval and Tp-Te/QT ratio increased.