A Study On Contralateral Patent Processus Vaginalis In Pediatric Unilateral Indirect Inguinal Hernia And Unilateral Hydrocele

Objective:Clinical data of pediatric unilateral indirect inguinal hernia and pediatric unilateral hydrocele in different age groups were retrospectively analyzed,the present study was planned to investigate the prevalence of contralateral patent processus vaginalis(CPPV)in pediatric unilateral indirect inguinal hernia and unilateral hydrocele and its relationship to age.Methods:From June 2014 to January 2020,1 942 cases with pediatric unilateral indirect inguinal hernia or pediatric unilateral hydrocele who underwent laparoscopic percutaneous extraperitoneal closure(LPEC)were retrospectively analyzed.Patients were divided into 4 groups according to age:infant group(<1 year),toddler group(1year~),preschool-age group(3 years~)and school-age group(?7 years).The prevalence of CPPV among gender,different initial sides and different diagnoses were respectively compared,and its relationship to age was analyzed.Results:The prevalence of CPPV was 46.14%.In total,the prevalence of CPPV decreased as age increased(?<0.01),and there was not statistically different between gender(?~2=0.19,?=0.66)and different initial sides(?~2=3.46,?=0.06).The prevalence of CPPV in pediatric unilateral hydrocele was higher than that in pediatric unilateral indirect inguinal hernia(51.16%vs 44.51%,?~2=6.38,?=0.01).For pediatric unilateral indirect inguinal hernia,the prevalence of CPPV decreased as age increased(?=0.01),and there was not significant effect between different initial sides(?~2=0.93,?=0.33).For pediatric unilateral hydrocele,the prevalence of CPPV in left hydrocele was higher than that in right hydrocele(57.07%vs 47.42%,?~2=4.19,?=0.04),but it did not change in relation to age(?=0.12).Discussion:The application of laparoscopy in the diagnosis and treatment of indirect inguinal hernia and hydrocele in children was considered to have significant advantages.The prevalence of CPPV in pediatric unilateral inguinal hernia and unilateral hydrocele was higher,routine laparoscopic CPPV exploration was recommended for those patients.In particular,laparoscopic CPPV exploration for younger pediatric unilateral indirect inguinal hernia and pediatric left hydrocele should be more carefully.