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Long-term follow-up of pediatric open and laparoscopic inguinal hernia repair.

BACKGROUND: Pediatric laparoscopic inguinal hernia repair is not widely accepted.

STUDY DESIGN: Children 0-14 years who underwent inguinal hernia repair during 2010-2016 at Kaiser Permanente Northern California were classified into five groups: (1) open unilateral repair without contralateral exploration; (2) open unilateral repair with contralateral laparoscopic exploration ("open+explore"); (3) open bilateral repair; (4) laparoscopic unilateral repair; and (5) laparoscopic bilateral repair. Outcomes included ipsilateral reoperation, metachronous contralateral repair, incision time, and complications.

RESULTS: The study included 1697 children. Follow-up averaged 3.6 years after open (N = 1156) and 2.6 years after laparoscopic (N = 541) surgery. Metachronous contralateral repair was performed in 3.8% (26/683) of patients with open unilateral surgery without contralateral exploration, 0.7% (2/275) of open+explore patients, and 0.9% (3/336) of laparoscopic unilateral patients (p < 0.01). Ipsilateral repair was performed in 0.8% (10/1156) of open repairs and 0.3% (2/541) of laparoscopic repairs. Chart review confirmed 5 postoperative infections in 1156 patients with open surgery (0.43%) and 6 infections in 541 patients with laparoscopic surgery (1.11%) (p = 0.11).

CONCLUSION: Our study's laparoscopic and open approaches have similar low ipsilateral reoperation rates, incision times, and complications. The use of laparoscopy to visualize the contralateral side resulted in a significantly lower rate of metachronous contralateral repair.

LEVEL OF EVIDENCE: Level III.

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