【摘要】 目的 :研究溶栓治疗急性心肌梗死 (AMI)后的心电图QT离散度 (QTcd)变化规律及意义 ;方法 :收集 72例AMI测定住院首次及溶栓后 2h、第 2、3、4、7、1 5d的 1 2导联心电图QTcd ,用尿激酶 (UK)溶栓 ,按冠脉再通和未通分组比较 ;结果 :冠脉未通组QTcd溶栓前后无差异 (P >0 0 5 ) ;再通组于溶栓后 2hQTcd减少直至前 3d ,但无意义 (P >0 0 5 ) ,于第 4、7d明显减少 (P <0 0 1 ) ,第 7d两组QTcd有统计学意义 (P <0 0 2 ) ,再通组于第 1 5dQTcd开始反跳 ;再通组室性心律失常发生率低于未通组 (P <0 0 2 5 ) ;结论 :溶栓后QTcd可反映出近期的疗效 ,但不可忽视半月左右部分心电不稳定性。更多还原

【Abstract】 Objective: It’s to search the regularity and the significance of QTcd in the ECG of AMI. patients treated by thrombolytic therapy; Methods: To collect 72 AMI patients QTcd in 12-lead ECG. after taking UK registering 2h, 2nd, 3rd, 4th, 7th, 15thday. They were divided into the reperfusion and the non-reperfusion groups; Results: QTcd of the non-reperfusions were not rare (P>0.05). QTcd of the non-reperfusions reduced from 2h to the 3rd day after thrombolytic therapy. But it was in significant (P>0 05) They were reduced. Obviously on 4th and 7th day (P<0 01). Two groups had the statistical significance on 7th,the two groups on 7th day (P<0 02). QTcd of the reperfusion began to increase on 15th day. The ratesof Ventrilular arrhythmias of reperfusions is lower than the non-reperfusions (P<0 025); Conclusion:QTcd after thrombolytic therapy indicats recent curative. But do not ignore the instability of some patient’s ECG about half a month. [更多还原