European journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery
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Eur J Vasc Endovasc Surg · Dec 2007
Randomized Controlled Trial Multicenter Study Comparative StudyComparison of 1% and 3% polidocanol foam in ultrasound guided sclerotherapy of the great saphenous vein: a randomised, double-blind trial with 2 year-follow-up. "The 3/1 Study".
To compare 1% and 3% POL foam in treating the great saphenous vein (GSV) by ultrasound guided sclerotherapy. ⋯ This study demonstrates equivalent efficacy for 1% POL and 3% POL foam in sclerotherapy of the GSV where the trunk is less than 8 mm in diameter. These data obtained two years of follow-up confirm our previously reported 6 month-follow-up data published in 2005.