The incidences of infarction extension in group A also greater than that in group B, but is not significant.
梗塞扩展发生率及严重心律失常发生率A组高于B组，但无统计学差异。
Severe arrythmia, cardiogenic shock and infarction extension in HT group were slightly more than those in NHT group(P> 0.05).
严重心律失常，心源性休克和梗塞扩展在HT组略多（P >0 .0 5 ）。
CONCLUSION: Early administration and sufficient dose of intravenous urokinase is proved bcneficial to the patients with early myocardial reinfarction and extension of infarction.
结论：对心肌早期再梗塞和心肌梗塞延展患者，及早、足量应用尿激酶静脉溶栓后有较好的临床效果。
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