QT离散度对急性心肌梗塞溶栓疗效的预测价值

The predictive value of QT dispersion for acute myocardial infarctionthrombolytic treatment effectiveness

目的 探讨QT离散度 (QTd)对急性心肌梗塞 (AMI)尿激酶静脉溶栓疗效的预测价值。方法 71例AMI病人分为再通组、未通存活组及死亡组 ,在溶栓前及溶栓后 1、2、3、4、6、8、10、12、2 4、48、72、96及 12 0h进行 12导联同步心电图检查 ,并分别测算出各时刻的QTd及校正QTd(QTcd)。结果 再通组溶栓后 1h内QTd及QTcd明显降低 ;未通存活组无明显变化 ;死亡组溶栓 2h内即明显升高并随病情恶化呈持续上升直至死亡。

Objective To explore the prediction value of QTdispersion (QTd) for acute myocardial infarction (AMI) intravenous thrombolytictreatment by urokinase. Methods 71 patients with AMI were divided into three groups(re-opened,un-opened survival and death groups). checkedby a simultaneous 12-lead ECG one time before thrombolytic treatment, and do itat the time of 1,2,3,4,6,8,10,12,24,48,72,96 and 120th hour after thrombolytictreatment,and then calculate QTd and QT corrected dispersion (QTcd). Results QTd and QTcd were obviously decreased in the re-opened group within anhour,and there was no change un-opened survival group, for the death group,it keeps rising by thrombolytic treatment within 2 hours till death. Conclusion QTd and QTcd can be regarded as a sensitive pointto predict the effectiveness of AMI thrombolytic treatment.