Results 29 of 123 cases had occurred urethrorrhea ( 23.5 % ) after hypospadias repair .

结果123例尿道下裂术后29例出现 尿瘘（ 23.58%）。

Conclusion Injection of about 15-20 ml saline in catheter in the old female patient can protect the urethrorrhea and withdrawal of urethral catheter and decrease the rate of infection in urinary system .

结论老年女性患者 气囊 导尿管注入15～20ml生理盐水，可有效地 防止 尿液 外渗及 导尿管 脱出，减少泌尿系感染率的发生，对临床留置导尿技术有 指导意义。