RESUMO
Objective To evaluate the long-term follow-up results of foam sclerosing agent in the treatment ofincompetent perforating vein.Methods 153 cases (316 incompetent perforating veins)received the treatment of foam sclerotherapy.The closure of perforating branches was followed up by ultrasound.Results 12 cases (27 incompetent perforating veins) were lost to follow up.289 incompetent perforating veins got follow up,The median follow-up time was 17 months (11-36 months).Closure rate was 100％ in vessels less than 3 mm in diameter,while that was 76％ invessels with the diameter between 3-5 mm.Closure rate was 16％ in vessels larger than 5 mm in diameter.Conclusion The long-term efficacy of the foam sclerosing agent in the treatment of incompetent perforating vein depends on the diameter of the vein.
