镍钛尿道支架管在尿道下裂修复术中的作用

目的探讨镍钛记忆合金尿道支架管在预防尿道下裂术后尿瘘及尿道狭窄中的作用.方法 2001年1月～2004年12月,应用镍钛记忆合金尿道支架管作为尿道支架修复63例尿道下裂,其中阴茎近端型19例,阴茎阴囊型22例,阴囊会阴型8例,为一期尿道重建;尿道下裂术后尿瘘行尿瘘修补术10例;尿道下裂术后尿道狭窄再次重建尿道4例.结果 63例伤口均Ⅰ期愈合,术后获随访2个月～2年,排尿通畅,均无尿瘘和尿道狭窄发生.其中62例于术后2～3个月后拔除尿道支架,1例于12个月后拔除.结论镍钛记忆合金尿道支架管可有效预防尿道下裂术后尿瘘及尿道狭窄的发生.

EFFECT OF NITI-ALLOY URETHRAL STENT IN HYPOSPADLAS REPAIR

Objective To evaluate the effect of niti-alloy urethral stent on the prevention of urethrocutaneous fistula and urethral stricture in hypospadias repair. Methods From January 2001 to December 2004, niti-alloy urethral stents were applied to repair congenital hypospadias in 63 patients. Among 63 patients, 49( 19 cases of proximal hypospadias, 22 cases of penoscrotal hypospadias and 8 cases of perineoscrotal hypospadias) received one-stage surgical managements of urethral reconstruction, and 10 underwent postoperative fistular repairs and 4 received repeated urethral reconstruction because of urethral stricture after hypospadias repair. Results All patients gained healing by first intention without fistula or urethral stricture. The stents were left indwelling in the neourethra for 2 months to 3 months to prevent stricture. The longest indwelling period was about 1 year. No dysuria or other discomfort occurred during this period. WTHZ]Conclusion Niti-alloy urethral stent can effectively prevent the postoperative urethrocutaneous fistula and urethral stricture after hypospadias repair.