Twelve children with posterior urethral valves were treated by holmium laser transcystostomy ureteroscopy, and followed up to evaluate their curative effect.

• 方法对12例后尿道瓣膜症患儿采用经膀胱造瘘输尿管镜下钬激光后尿道瓣膜切除术，并随访观察疗效。