Methods Three kinds of methods were used, i. e. urokinase and prostaglandin E1 via vein, urokinase via femoral artery and prostaglandin E1 via vein, and urokinase alone via vein.

• 方法将静脉内联合应用尿激酶和前列腺素E1、患肢股动脉注射尿激酶联合静滴前列腺素E1与静脉单用尿激酶作对照研究，比较三种治疗方法血管再通率的变化。