Methods 34 cases were treated by ringing of superficial femoral vein.The therapeutic effieacy was evaluated by noninvasive photo plethysmography(PPG)and clinical effection.

• 方法本文应用股浅静脉戴戒术治疗原发性下肢深静脉瓣膜功能不全34例，并应用无创性光电容积描记(PPG)结合临床症状改善状况对手术疗效进行评估。