Pediatrics(구연) Oral Session8 / Pediatrics (O-081) Rm.203 10월 30일(수) 16:00-17:00 요도하열 환아에서 교정수술 후 나이에 따른 합병증 가능성에 관한 연구 양산부산대학교병원, 부산대학교 의과대학 비뇨기과학교실¹ Tashkent Pediatric Medical Institute² AbdullaevZafar, AgzamkhodjaevSaidanvar¹², 강병진, 김경원, 정재민, 이상돈¹ Purpose: To study the complication rate according to ages of patients after hypospadias repair in children. Material and methods : Records of 239 primary patients who underwent hypospadias repair from January 2009 to September 2017 in single center were retrospectively investigated. According to patients age, they were divided into three groups that were Group 1 (n=170, 0-24 months), group 2 (n=51 patients, 24-144 months) and group 3 (n=18 patients, over 144 months). The demographic factors, prematurity and low birth weight of the patients, different types of hypospadias, intraoperative findings, surgical methods and complications were reviewed. All data was statistically analyzed on SPSS. Results: The mean age and follow up time of the patients were 33.9±43.6 and 49.1±29.7 months. The overall complication rate were 34.3% in 239 cases. The surgical methods included TIP (n=127, 53.1%), Thiersch-Duplay (n=23, 9.6%), Onlay Island flap(OIF) (n=14, 5.9%), Mathieu (n=27, 11.3%), Pyramid (n=25, 10.5%) and combined methods (n=22, 10.5%). In the demographic finding, prematurity, low birth weight and intraoperative findings were significant (p=0.0001, p=0.001). The incidence of complication rate was more common in group 2(41.2%) than other groups. The complication rate in patients older than 24months was higher than in patients younger than 24 months (35.3% vs 41.2%). Conclusions: Our study have indicated that complications were minimized when hypospadias repair is performed in younger 24 months of age. keywords : hypospadias, age, postoperative complications