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目的：探讨T 波峰- 末间期（Tp-Te 间期）和Tp-Te 间期离散度（Tp-Ted）对急性心肌梗死并发室性心律失常的预测价值。方法：选择我院2013 年5 月至2014 年5 月收治的140 例确诊急性ST 段抬高型心肌梗死（STEMI）患者，按照心律失常类型分为室性心动过速组，室性早搏组以及无室性心律失常组。分析并比较各组患者心电图Tp-Te 间期及Tp-Ted 的变化情况。结果：急性期 FPG、Tp-Te、Tp-Ted 高于恢复期，差异有统计学意义（P<0.05）；急性期与恢复期之间TG、CHOL、LDL-C、K+、Na+水平差异无统计学意义（P>0.05）。无室性心律失常组与室性心动过速组及室性早搏组比较，Tp-Te和Tp-Ted更低，差异有统计学意义（P<0.05）；室性早搏组和室性心动过速组比较，Tp-Te 和Tp-Ted 更低，差异有统计学意义（P<0.05）。结论：Tp-Te 间期和Tp-Ted 可用于区分急性心肌梗死患者室性心律失常类型。

英文摘要:

Objective:To explore the predictive value of T wave peak to end (Tp-Te) interval and Tp-Te interval dispersion (Tp-Ted) in acute myocardial infarction combined with ventricular arrhythmias.Methods:140 patients who were diagnosed as ST-segment elevation myocardial infarction (STEMI) hospitalized in our hospital from May 2013 to May 2014 were enrolled and divided into ventricular tachycardia (VT) group, ventricular premature beat (VPB) group and group without ventricular arrhythmias according the types of ventricular arrhythmias. The Tp-Te interval and Tp-Ted of the electrocardiogram of the three groups were analyzed and compared.Results:FPG, Tp-Te and Tp-Ted of patients in acute phase were higher than those of patients in recovery phase, and the differences were statistically significant (P<0.05). There was no statistically significant difference about the levels of TG, CHOL, LDL-C, K+ and Na+ between the acute phase and the recovery phase (P>0.05). Compared with VT and VPB group, Tp-Te and Tp-Ted of the non-ventricular arrhythmias group were lower, and the differences were statistically significant (P<0.05). Tp-Te and Tp-Ted of VPB group were lower than those in VT group with statistically significant differences (P<0.05).Conclusion:Tp-Te interval and Tp-Ted can be used to differentiate different types of ventricular arrhythmias in patients with acute myocardial infarction.

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