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Contralateral groin exploration is not justified in infants with a unilateral inguinal hernia
J Shabbir1, A Moore, J B O'Sullivan
1Department of Surgery, Mid-Western Regional Hospital, Limerick, Ireland.
Insights
The risk of developing a contralateral inguinal hernia after unilateral inguinal herniotomy in infants is low (9.0%) and typically benign. Routine contralateral exploration is not recommended for infants under one year old.
Area of Science:
- Pediatric Surgery
- Neonatal Surgery
- Hernia Research
Background:
- Contralateral groin exploration in pediatric unilateral inguinal hernia cases remains a debated topic, especially in infants.
- Infants exhibit the highest processus vaginalis patency rates, yet data on subsequent contralateral hernia risk is limited.
- This study addresses the incidence of contralateral inguinal hernia following unilateral inguinal herniotomy in infants under one year of age.
Purpose of the Study:
- To determine the incidence of contralateral inguinal hernia development in infants younger than one year after undergoing a unilateral inguinal herniotomy.
Main Methods:
- A retrospective analysis was conducted on 101 infants who had a unilateral inguinal herniotomy between January 1990 and December 1998.
- Infants with pre-existing bilateral hernias were excluded from the study.
- Follow-up duration ranged from 3.5 to 11 years.
Main Results:
- A contralateral inguinal hernia developed in 9.0% (9 out of 101) of the infants.
- The median time to contralateral hernia development was 18 months post-operation.
- Factors such as age, sex, incarceration, and the side of the initial hernia did not significantly influence the development of a contralateral hernia.
Conclusions:
- The low incidence and generally benign presentation of contralateral hernias in infants suggest that routine contralateral groin exploration is not warranted.
- The findings support a selective approach to contralateral groin management in this age group.
Background:
Contralateral groin exploration in children with unilateral inguinal hernia is still controversial, particularly in infants. The patency rate of processus vaginalis is highest in infants but there are few data on the subsequent risk of contralateral hernia development in infants. In this retrospective study, we aimed to find out the incidence of contralateral inguinal hernia following unilateral inguinal herniotomy in infants aged less than one year.
Methods:
All infants who underwent a unilateral Inguinal herniotomy between January 1990 and December 1998 were studied retrospectively. Infants with bilateral hernia (n = 7) were excluded from the study.
Results:
One hundred and one infants (93 boys and 8 girls) were studied. Median age at operation was 23 (range 2-52) weeks. The herniotomy was right-sided in 75% of the infants. Follow-up ranged from three and a half years to 11 years. A contralateral hernia developed in nine infants (9.0%). One of the initial hernias was incarcerated. Median time from operation to occurrence of contralateral hernia was 18 (range 2-60) months. None of the contralateral hernia was incarcerated. Age, sex, incarceration and side of initial hernia did not influence the development of contralateral hernia.
Conclusion:
The low incidence and benign nature of contralateral hernia development in infants undergoing a unilateral inguinal herniotomy does not justify routine contralateral groin exploration.