Complications were noted in 4 patients: perforation in 2 cases who were cured conservativelly without ureteral stricture during 10 to 12 monthes follow up, urinary tract infection in 2 cases.

• 发生并发症4例，其中输尿管穿孔2例，采取保守治疗痊愈，随访10~12个月未发现输尿管狭窄；泌尿系感染2例。