Affiliation:
1. Department of Paediatric Surgery, Institute of Child Health and Great Ormond Street Hospital for Children, London, UK
Abstract
Abstract
Background
This study aims to establish the risk of developing a metachronous contralateral inguinal hernia (MCIH) following open repair of a unilateral inguinal hernia in children.
Methods
A systematic review was performed using a defined search strategy. Studies in which children undergoing open repair of a unilateral inguinal hernia without contralateral exploration and who were followed up for MCIH development were included.
Results
Of 5937 titles and abstracts screened, 154 full-text articles were identified for review; 49 papers were analysed with data on 22 846 children. The incidence of MCIH was 7·2 per cent overall, 6·9 per cent in boys and 7·3 per cent in girls (P = 0·381). Children with a left-sided inguinal hernia had a significantly higher risk of developing a MCIH than those with a right-sided hernia (10·2 versus 6·3 per cent respectively; P < 0·001).
Conclusion
Overall, in both boys and girls, 14 contralateral explorations are required to prevent one metachronous hernia. The risk of developing a MCIH appears unchanged in early childhood, with a slight reduction after 12 years of age. Children with a left-sided hernia have the greatest risk of developing a contralateral hernia, but ten explorations are still required to prevent one metachronous hernia. Most MCIHs occur in the first 5 years after unilateral inguinal hernia repair.
Publisher
Oxford University Press (OUP)
Cited by
94 articles.
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