Objective: To assess the effect of intravenous thrombolytic therapy in different period of acute myocardial infarction (AMI).

目的：观察静脉溶栓治疗对急性心肌梗死(ami)后不同阶段的心电图qt离散度变化的影响。

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Conclusion Intravenous thrombolytic therapy in senior AMI can reduce the mortality rate, reduce the occurrence of heart failure and improve prognosis.

结论静脉溶栓治疗高龄ami可降低病死率，减少心力衰竭发生，改善预后。

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Objective: To determine the clinical curative effect and safety of intravenous thrombolytic therapy with low dose urokinase for the acute cerebral infarction.

目的：探讨小剂量尿激酶超时间窗静脉溶栓治疗急性脑梗死的疗效及安全性。

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