Pediatrics(구연) International Session I (I-06) Rm. 202 10월 31일(목) 15:00-16:00 Age related Re-operation after TIP procedure in Children with Hypospadias 양산부산대학교병원, 부산대학교 의과대학 비뇨기과학교실¹ Tashkent Pediatric Medical Institute² AbdullaevZafar, AgzamkhodjaevSaidanvar¹², 강병진, 김경원, 정재민, 이상돈¹ Purpose : To study the incidence of re-opreation after TIP procedure in different age groups of children with hypospadias Material and methods : Records of 135 primary patients who underwent TIP from January 2010 to September 2017 at a single center were retrospectively investigated. According to patient’s age, they were divided into two groups that were Group 1 (n=108, 6-24 months) and group 2 (n=27, 〉24 months). Demographic factors, prematurity and low birth weight of the patients, type of hypospadias and intraoperative findings were evaluated. All data was statistically analyzed on SPSS. Results: The mean age and follow up time of the patients were 21.5±23.7 and 52.4±31.3months. Most of hypospadias type was penoscrotal (46.7%). The overall re-operation rate was 34.1% (46/135). The mean period of re-operation after first surgery was 8.6±15.9 month (0.3-80.5 months). Simple type (only one) of fistula was more frequent than multiple type in both groups (84.6%, 75.0%). Of the 135 patients, rate of re-operation was higher in group 2 (37.0%) than group 1 (33.3%). According to hypospadias type, re-operation in middle and proximal hypospadias was more common in group 2 (15.0% vs 50.0%, 44.6% vs 58.3%). Conclusions: Our study have demonstrated that there is no significant difference to re-operation rate according to ages keywords : hypospadias, age, re-operation