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Incidence of metachronous contralateral inguinal hernias in children following unilateral repair - A meta-analysis of prospective studies


Wenk, Kathrin; Sick, Beate; Sasse, Tom; Moehrlen, Ueli; Meuli, Martin; Vuille-Dit-Bille, Raphael N (2015). Incidence of metachronous contralateral inguinal hernias in children following unilateral repair - A meta-analysis of prospective studies. Journal of Pediatric Surgery, 50(12):2147-2154.

Abstract

PURPOSE: The objective of this review was to systematically evaluate the incidence of a metachronous contralateral inguinal hernia (MCIH) in children with unilateral inguinal hernia and therefore to propose or to reject routine contralateral groin exploration.
METHODS: Electronic searches restricted to prospective studies with a minimal follow-up of 1year included MEDLINE, EMBASE and the Cochrane Central Register of Controlled Trials.
RESULTS: Six studies involving 1669 children were included. Overall MCIH was 6% (95% CI from 4% to 8%). The odds for MCIH development were significantly larger in children with an initial left-sided hernia (OR 2.66 with 95% CI from 1.56 to 4.53) and in children with open contralateral processus vaginalis (CPV) (OR 4.17 with 95% CI from 1.25 to 13.9).
CONCLUSIONS: The overall incidence of MCIH following unilateral inguinal hernia repair in children is 6%. Initial left-sided hernia (8.5%) and open CPV (13.8%) are risk factors for MCIH development. Female gender (8.2%) and younger age (<1year) (6.9%) non-significantly increase the risk of MCIH.

Abstract

PURPOSE: The objective of this review was to systematically evaluate the incidence of a metachronous contralateral inguinal hernia (MCIH) in children with unilateral inguinal hernia and therefore to propose or to reject routine contralateral groin exploration.
METHODS: Electronic searches restricted to prospective studies with a minimal follow-up of 1year included MEDLINE, EMBASE and the Cochrane Central Register of Controlled Trials.
RESULTS: Six studies involving 1669 children were included. Overall MCIH was 6% (95% CI from 4% to 8%). The odds for MCIH development were significantly larger in children with an initial left-sided hernia (OR 2.66 with 95% CI from 1.56 to 4.53) and in children with open contralateral processus vaginalis (CPV) (OR 4.17 with 95% CI from 1.25 to 13.9).
CONCLUSIONS: The overall incidence of MCIH following unilateral inguinal hernia repair in children is 6%. Initial left-sided hernia (8.5%) and open CPV (13.8%) are risk factors for MCIH development. Female gender (8.2%) and younger age (<1year) (6.9%) non-significantly increase the risk of MCIH.

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1 citation in Web of Science®
2 citations in Scopus®
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Additional indexing

Item Type:Journal Article, refereed, further contribution
Communities & Collections:04 Faculty of Medicine > Epidemiology, Biostatistics and Prevention Institute (EBPI)
04 Faculty of Medicine > University Children's Hospital Zurich > Clinic for Surgery
Dewey Decimal Classification:610 Medicine & health
Uncontrolled Keywords:Inguinal hernia; Incidence; Contralateral; Metachronous
Language:English
Date:10 September 2015
Deposited On:14 Oct 2015 09:03
Last Modified:05 Apr 2016 19:27
Publisher:Elsevier
ISSN:0022-3468
Publisher DOI:https://doi.org/10.1016/j.jpedsurg.2015.08.056
PubMed ID:26455468

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