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MP65-06 RISK FACTORS FOR FISTULA RECURRENCE AFTER URETHROCUTANEOUS FISTULECTOMY IN CHILDREN WITH HYPOSPADIAS

INTRODUCTION AND OBJECTIVE: To investigate the risk factors for fistula recurrence after primary urethrocutaneous fistulectomy in children with hypospadias. METHODS: We retrospectively investigated 63 children who underwent urethrocutaneous fistulectomy for repair of hypospadias between 2009 and 2019. Children were divided into those who underwent successful urethrocutaneous fistulectomy (group 1, 51 children [81.0%]) and those in whom urethrocutaneous fistulectomy failed (group 2, 12 children [19.0%]). Data analyzed included children demographics, details of the previous urethroplasty, location of the primary meatus and type of hypospadias, meatal stenosis, postoperative stricture, and size of the urethrocutaneous fistula. All data were statistically analyzed using the SPSS software. RESULTS: The overall success rate of fistula repair was 81.0% (51 of 63 children). The most common location of a secondary fistula was the penoscrotal area (8 of 12 children, 66.6%). No statistically significant intergroup differences were observed in age (p[0.501), weight (p[0.063), body mass index (p[0.924), low body weight (p[0.454), and prematurity (p[0.381). Using the Student's t-test, the type of hypospadias (p[0.007) and urethral defect length (p[0.021) were identified as independent risk factors for failed urethrocutaneous fistulectomy. Analysis performed using the Chi-square test revealed no statistically significant intergroup differences in meatal stenosis (p[0.431), postoperative stricture (p[0.587), fistula location (p[0.173), multiplicity (p[0.588), and fistula size (p[0.530). CONCLUSIONS: Type of hypospadias and urethral defect length are significant risk factors for secondary fistula recurrence after primary urethrocutaneous fistulectomy.