To evaluate the clinical efficacy of DSA-guided sclerotherapy with polidocanol injectable foam in treatment of Puig's Ⅰ and Ⅱ perianal venous malformations in children.

A retrospective analysis was made of 38 children with Puig's Ⅰ and Ⅱ perianal venous malformations who were treated with DSA-guided percutaneous puncture of 3% polydocarol foam sclerotherapy under general anesthesia from March 2018 to June 2019 in Henan Provincial People's hospital.The curative effect, adverse reactions were observed in follow-up.

The 38 children were treated 76 times (1-3 times/case), and the average single application dose of 3% polydocarol foam sclerosant was (5.94±1.69) mL. 28 cases were cured, 9 cases were basically cured and 1 case was effective; the cure rate was 73.68% (28/38), and the total effective rate was 100%. Adverse reactions. There were mild swelling at the lesion in 76 cases after interventional sclerotherapy and tension blisters in the skin in 3 cases.One patient had mild skin ulceration, however, the ulcertion healed after 10 days of symptomatic treatment. After 14-28 months of follow-up (median follow-up time was 24 months), there was no significant recurrence of symptoms.

3% polydocanol foam sclerotherapy is a minimally invasive, safe, effective and worth popularization treatment for Puig's Ⅰ and Ⅱ perianal venous malformations in children.