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Laparoscopic extraperitoneal technique versus open inguinal herniotomy in children: historical controlled intervention study.

OBJECTIVE: To compare surgical outcomes of percutaneous extraperitoneal simple purse string method of laparoscopic hernia (LH) repair with a traditional open inguinal hernia (OH) repair in children with indirect inguinal hernia in a single center.

METHODS: This study is a historical-controlled intervention study of two groups of patients: patients in the controlled group had OH repair performed from January 2016 to December 2017, and patients in the study group had LH repair from January 2018 to December 2019 at a single institution. Outcomes of the OH and LH groups, in terms of operative time, recurrence, complications, incidence of metachronous contralateral inguinal hernia (MCIH) and contralateral patent processus vaginalis (CPPV) were analyzed.

RESULTS: Three hundred and five patients were enrolled in the study. Among them, 95 cases underwent laparoscopic percutaneous extraperitoneal closure herniotomy (LH group), and 210 cases underwent conventional open herniotomy (OH group). In terms of operative time, only unilateral herniotomy in females of the OH group was significantly less than that of the LH group (15.7±7.1 vs 20.5±7.4 min, p=0.004). No significant difference in overall complication was observed between the two groups of patients. The incidence of CPPV in the LH group was 15.7% (15/95), and MCIH in OH group was 10.9% (23/210).

CONCLUSIONS: Laparoscopic herniotomy may prevent the need for a second operation of metachronous contralateral hernia. Both open and laparoscopic techniques are equivalent in pro and cons.

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