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Predictors of recurrence after inguinal herniotomy in boys
Helen D E Vogels1, Christine J P Bruijnen, Spencer W Beasley
1Department of Paediatric Surgery, Christchurch Hospital, Christchurch, New Zealand.
Insights
Recurrence after childhood inguinal hernia repair is linked to larger hernia sac size and accidental sac opening during surgery. Premature infants and those with specific comorbidities also face higher recurrence risks.
Area of Science:
- Pediatric Surgery
- Hernia Repair
- Surgical Outcomes
Background:
- Inguinal hernia recurrence is a significant complication in pediatric surgery.
- Factors influencing recurrence after childhood hernia repair are not well understood.
Purpose of the Study:
- To identify pre-operative surgical factors predicting subsequent recurrence of inguinal hernias in boys.
- To analyze the association between hernia characteristics and recurrence rates.
Main Methods:
- Retrospective review of 2,471 primary herniotomies in boys from 1996-2007.
- Comparison of characteristics between hernias that recurred and those that did not.
Main Results:
- Overall recurrence rate was 0.69% (17/2,471).
- Inadvertent opening of the hernial sac (OR=5.1) and larger hernia size were significant predictors of recurrence.
- Recurrences were more common in premature infants (less than 37 weeks gestation) and those with 'massive' hernias.
Conclusions:
- Larger or inadvertently opened hernial sacs increase the risk of recurrence in pediatric inguinal hernia repair.
- Low gestational age and certain comorbidities are associated with higher recurrence likelihood.
Background:
Recurrence is the most important complication of inguinal hernia repair in childhood, but little is known about its contributing factors. The aim of our study was to identify factors evident at the time of primary surgery that may be predictive of subsequent recurrence.
Methods:
All hernias in boys operated on by the Christchurch-based Paediatric Surgical Service of the South Island of New Zealand between September 1996 and December 2007 were reviewed. Characteristics of initial hernias that recurred were compared with hernias that did not recur.
Results:
There were 2,471 primary herniotomies in boys, of which 17 recurred, giving an overall recurrence rate of 0.69%. Factors predicting an increased likelihood of later recurrence were inadvertent opening of the hernial sac during its dissection off the vas and vessels (OR = 5.1, P = 0.0039) and larger size of the hernia (P = 0.0037). Ten recurrences (62.5%) occurred in infants less than 37 weeks gestation. Hernias considered 'massive' at the time of surgery tended to recur earlier (P = 0.006), as did those where the sac was opened (P = 0.011). The side of the hernia and initial strangulation did not differ significantly between the two groups.
Conclusions:
Larger hernial sacs and sacs inadvertently opened during surgery are predictors of later recurrence. Low gestation and specific comorbidities were also associated with a higher likelihood of recurrence.
