Male Gender and Prematurity are Risk Factors for Incarceration in Pediatric Inguinal Hernia: A Study of 922 Children.

OBJECTIVES: The purpose of this study was to document clinical features of inguinal hernia (IH) in the pediatric population. It provides data to evaluate associated risk factors of incarcerated hernia, its recurrence as well as the occurrence of contralateral metachronous hernia.

MATERIALS AND METHODS: We report a retrospective analytic study including 922 children presenting with IH and operated from 2010 to 2013 in our pediatric surgery department.

RESULTS: We managed 143 girls (16%) and 779 boys (84%). The mean age was 2 years; the right side was predominantly affected (66.8%, n = 616). Incarcerated hernia was documented in 16% of cases with an incidence of 33% in neonates. The incarceration occurrence was 15.5% in males versus 2.09% in females. The surgical repair was done according to Forgue technique. Postoperatively, four cases of hernia recurrence were documented, and contralateral metachronous hernia was reported in 33 children with 7.7% females versus 2.8% males. Forty-five percent of them were infants. The mean follow-up period was 4 years. We think that incarceration can be related to several risk factors such as feminine gender, prematurity, and the initial left side surgical repair of the hernia.

CONCLUSION: IH occurs mainly in male infants. Prematurity and male gender were identified as risk factors of incarceration. Contralateral metachronous hernia was reported, especially in female infants and after a left side surgical repair of the hernia.