Methods 55 patients were treated by venous external valvuloplasty on the first valve of superficial femoral vein with PTFE.

• 方法对原发性下肢深静脉瓣膜功能不全的55例患者施以股浅静脉第一对瓣膜包窄术,包窄材料选用聚四氟乙烯人造血管。