Laparoscopic repair on asymptomatic contralateral patent processus vaginalis in children with unilateral inguinal hernia: A centre experience and review of the literature
Article first published online: 26 JAN 2011
© 2011 The Authors. Surgical Practice © 2011 College of Surgeons of Hong Kong
Volume 15, Issue 1, pages 12–15, February 2011
How to Cite
Chung, K. L.Y., Leung, M. W.Y., Chao, N. S.Y., Wong, B. P.Y., Kwok, W.-K. and Liu, K. K.W. (2011), Laparoscopic repair on asymptomatic contralateral patent processus vaginalis in children with unilateral inguinal hernia: A centre experience and review of the literature. Surgical Practice, 15: 12–15. doi: 10.1111/j.1744-1633.2010.00532.x
- Issue published online: 26 JAN 2011
- Article first published online: 26 JAN 2011
- Accepted manuscript online: 6 DEC 2010 11:21PM EST
- Received 11 August 2010; accepted 30 November 2010.
- contralateral patent processus vaginalis;
- inguinal hernia;
Purpose: We investigate the prevalence of contralateral patent processus vaginalis (CPPV) in children presenting with symptomatic unilateral inguinal hernia under diagnostic laparoscopy and its implication on contralateral surgery.
Methods: Over a 24-month period, 79 children (66 boys, 13 girls) aged 1 month to 8 years with symptomatic unilateral inguinal hernia underwent laparoscopic hernia repair. Twenty-nine patients (36.7%) were under 24 months of age and 45 (57.0%) presented with right inguinal hernia. The contralateral internal inguinal ring was evaluated for CPPV. Bilateral repairs were carried out if CPPV was present.
Results: The overall prevalence of asymptomatic CPPV was 39.2% in children who presented with unilateral inguinal hernia. The prevalence of asymptomatic CPPV was 48.3% for children aged under 24 months old and 26.0% in children above 24 months old (P = 0.044). CPPV was present in 52.9% of left-side hernia under laparoscopy and in 28.9% of right-side hernia (P = 0.030).
Conclusion: The prevalence of asymptomatic CPPV under laparoscopy is nearly twice the reported incidence of symptomatic contralateral hernia development after conventional unilateral herniotomy. Further studies on the natural history of CPPV are necessary to determine the indications for repair of asymptomatic CPPV.