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观察48例急性心肌梗塞（AMI）患者静脉溶栓治疗前后QT离散度（QTd）、JT离散度（JTd）的变化。结果显示，溶栓成功组QTd、JTd较溶栓前显著减少（P＜0．001），而非成功组QTd、JTd较溶栓前无显著性差异（P＞0．05）.因此，QTd、JTd可作为判断溶栓成功的参考指标之一。
The changes of QTd and JTd in 48 AMI patients before and after intravenous thrombolysis were observed. The results showed that the QTd and JTd in the successful thrombolysis group were significantly lower than those before thrombolysis (P <0.001), while the QTd and JTd in the non-successful group were not significantly different from those before thrombolysis (P> 0.05) , JTd can be used as a reference to determine the success of thrombolysis.