Objective To observe the therapeutic effect of different operation methods in the treatment of primary deep venous insufficiency (PDVI).
目的观察不同手术方法治疗原发性下肢深静脉瓣膜功能不全的疗效。
Objective To probe about the operation's curative effect of different kinds of primary lower extremity deep vein value insufficiency (PDVI).
目的为探讨原发性下肢深静脉瓣膜功能不全(PDVI)不同类型的手术治疗效果。
Objective To evaluate therapeutic effect of external valve support(EVS) implantation in the treatment of primary deep venous insufficiency(PDVI).
目的评估静脉瓣膜外支撑环（EVS）植入术治疗原发性下肢深静脉瓣膜功能不全的疗效和应用价值。
Objective: To evaluate the therapeutic effect of external valve support (EVS) implantation in the treatment of primary deep venous insufficiency (PDVI).
目的：评估静脉瓣膜外支撑环(EVS)植入术治疗原发性下肢深静脉瓣膜功能不全的疗效和应用价值。
Objective: To evaluate the therapeutic effect of external valve support (EVS) implantation in the treatment of primary deep venous insufficiency (PDVI).
目的：评估静脉瓣膜外支撑环(EVS)植入术治疗原发性下肢深静脉瓣膜功能不全的疗效和应用价值。
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