Results 17 PCS blockage were recor ded in 405 PCS(4.20%,17/405),15 PCS blockage were cured by heparin saline and urokinase sometimes guided by X ray instrument.

• 结果药盒系统植入术后的药盒堵塞有17个；发生率为4.；20%25(17/405)；经肝素盐水冲洗药盒或/和高浓度尿激酶药盒推注(部分在X线设备下进行)后复通率为88