急性心肌梗死住院死亡病人QT离散度分析

Anylysis of QT interval dispersion in patients with myocardial infarction died during hospitalization

目的探讨QT离散度(QTd)与急性心肌梗死(AMI)死亡和预后的关系。方法AMI住院死亡病人35例为研究对象,同期住院存活病人随机挑选50例为对照组,测量两组病人的QTd,并进行统计学分析。结果死亡组QTd:78.50±38.15(ms),QTcd:70.50±35.10(ms)对照组QTd:65.00±22.40(ms),QTcd:53.50±26.32(ms),两组比较有显著差异(P<0.05),结论QTd对预测AMI死亡危险性和估计预后有一定的临床意义。

Objective: To explore the relationship between QTd, death risk and the prognosis of AMI. Methods: QTd was meascured by electrocardiograph in 35 patients with AMI died during hospitalization and antitheses in 50 patients who were alive and entered hospital at the same time, according to statistics analysis. Results: Died: QTd: 78.50±38.15(ms). QTcd: 70.50±35.10(ms). Antitheses: QTd: 65.00±22.40(ms), QTcd: 53.50±26.32(ms), and there were significant differences between two groups(P<0.05). Conclusions: QTd is of value to predicting the prognosis and evaluating the death risk of AMI.