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Hernia. 2014 Jun;18(3):333-7. doi: 10.1007/s10029-013-1099-2. Epub 2013 May 5.

Prediction of contralateral inguinal hernias in children: a prospective study of 357 unilateral inguinal hernias.

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1
Department of Pediatric Surgery, Nihon University School of Medicine, 30-1, Ohyaguchikami-cho, Itabashi-ku, Tokyo, 173-8610, Japan.

Abstract

PURPOSE:

Previously, we established a pre-operative risk scoring system to predict contralateral inguinal hernia in children with unilateral inguinal hernias. The current study aimed to verify the usefulness of our pre-operative scoring system.

METHODS:

This was a prospective study of patients undergoing unilateral inguinal hernia repair from 2006 to 2009 at a single institution. Gender, age at initial operation, birth weight, initial operation side, and the pre-operative risk score were recorded. We analyzed the incidence of contralateral inguinal hernia, risk factors, and the usefulness of our pre-operative risk scoring system. The follow-up period was 36 months. We used forward multiple logistic regression analysis to predict contralateral hernia.

RESULTS:

Of the 372 patients who underwent unilateral hernia repair, 357 (96.0 %) were completely followed-up for 36 months, and 23 patients (6.4 %) developed a contralateral hernia. Left-sided hernia (OR = 5.5, 95 %, CI = 1.3-24.3, p = 0.023) was associated with an increased risk of contralateral hernia. The following covariates were not associated with contralateral hernia development: gender (p = 0.702), age (p = 0.215), and birth weight (p = 0.301). The pre-operative risk score (cut-off point = 4.5) of the patients with a contralateral hernia was significantly higher, compared with the patients without a contralateral hernia using the area under the receiver operating characteristic curve (p = 0.024).

CONCLUSIONS:

Using multivariate analysis, we confirmed usefulness of our pre-operative scoring system and initial side of the inguinal hernia, together, for the prediction of contralateral inguinal hernia in children.

PMID:
23644774
PMCID:
PMC4037557
DOI:
10.1007/s10029-013-1099-2
[Indexed for MEDLINE]
Free PMC Article
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