AMI患者QTd、Tp-e和Tp-e／QT的临床意义

摘要

目的：探讨AMI患者QT离散度（QTd）、T波峰末间期（Tp-e）和Tp-e/QT的临床意义。方法AMI 患者（AMI 组）和健康成人（对照组）100名，AMI 患者又分室性心律失常组（38例）和无室性心律失常组（62例），对比分析AMI组和对照组及有、无室性心律失常组的QTd、Tp-e和Tp-e/QT。结果AMI 组的 Tp-e、Tp-e/QT 明显高于对照组，差异均有统计学意义（P ＜0．05）；AMI患者中室性心律失常组Tp-e、Tp-e/QT均明显高于无室性心律失常组，差异均有统计学意义（P＜0．05）；QTd在各组间差异均无统计学意义（P＞0．05）。结论AMI患者Tp-e、Tp-e/QT比健康对照组延长，且与室性心律失常的发生有密切关系。%Objective To explore the clinical significance of QT dispersion (QTd)、Tpeak-end in-terval (Tp-e)and Tp-e/QT ratio in patients with acute myocardial infarction (AMI).Methods QTd、Tp-e and Tp-e/QT were compared between the AMI group (n=1 00)and the normal group (n=1 00).Patients with AMI were divided into ventricular arrhythmia group (n=38)and non-ventricular arrhythmia group (n=62).QTd、Tp-e and Tp-e/QT were compared between the two groups.Results Tp-e and Tp-e/QT in pa-tients with AMI were significantly longer than those in normal group (P<0.05).Tp-e and Tp-e/QT in patients with ventricular arrhythmia group were significantly longer than those in non-ventricular arrhythmia group (P<0.05).No significant difference was found in QTd between both groups (P>0.05).Conclusion Tp-e and Tp-e/QT in patients with AMI are obviously longer,which is associated with the development of ventricular ar-rhythmia.