Comparison Of Urethral Complications Between One-stage and Two-stage Repair Of Severe Hypospadias

• 1、Affiliated to the capital university of medical sciences, Beijing children's hospital

Abstract：Objective To study the difference of urethral complications between one-stage and two-stage repair of severe hypospadias Materials and Methods A total of 765 patients underwent the repair of severe hypospadias in Department of Urology in Beijing Children's Hospital from January 2009 to December 2013. Classify them to 2 groups by one-stage repair (Duckett and Duckett+Duplay)and two-stage repair. Compare the difference of age, the length of urethral defect, rate of urethral fistula, urethral diverticulum and urethral stricture between the two groups. Results A total of 765 cases were collected, 650 cases in the one-stage group, mean age was 29 months(7-130months), mean length of urethral defect was 4.01cm(2.00-8.00cm). 115 cases in the two-stage group, mean age was 34 months(8-156months), mean length of urethral defect was 4.33cm(3.00-9.00cm), there was no statistic significance in the difference of age(P>0.05), there was no statistic significance in the difference of the length of urethral defect（P>0.05）. There was no statistic significance in the difference of the rate of urethral complications（χ2=0.544，P>0.05）. There was apparently statistic significance in the difference of the rate of urethral fistula(χ2=15.307，P<0.05). There was apparently statistic significance in the difference of the rate of urethral diverticulum(χ2=11.764，P<0.05). There was no statistic significance in the difference of the rate of urethral stricture（χ2=1.516，P>0.05）. Conclusion Regarding the whole complications, there is not any difference between one-stage repair and two-stage repair, but the rate of urethral fistula is lower after one-stage repair, and the rate of urethral diverticulum is lower after two-stage repair.

Keywords： severe hypospadias 1-stage operation 2-stage operation complication?????