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Laparoscopic evaluation of contralateral patent processus vaginalis in children
K Pellegrin1, D D Bensard, F M Karrer
1Children's Hospital, Denver, Colorado, USA.
Insights
Diagnostic laparoscopy safely identifies contralateral patent processus vaginalis (PPV) in children with unilateral inguinal hernias. This approach reveals a 31% PPV incidence, reducing unnecessary contralateral explorations.
Area of Science:
- Pediatric Surgery
- Minimally Invasive Surgery
- Surgical Diagnostics
Background:
- Contralateral inguinal exploration after unilateral herniorrhaphy in children is debated.
- Patent processus vaginalis (PPV) incidence decreases with age but subsequent clinical hernias occur in 6-10% of cases.
- The optimal management strategy for unilateral inguinal hernias in pediatric patients requires further investigation.
Purpose of the Study:
- To evaluate the safety and efficacy of diagnostic laparoscopy (DL) for identifying contralateral patent processus vaginalis (PPV) in children with unilateral inguinal hernias.
- To determine the incidence of contralateral PPV in pediatric patients undergoing unilateral inguinal herniorrhaphy.
- To assess the utility of DL in potentially avoiding unnecessary contralateral explorations.
Main Methods:
- Fifty consecutive pediatric patients with unilateral inguinal hernias were assessed using diagnostic laparoscopy (DL) during their initial herniorrhaphy.
- Data collected included patient age, operative time, and findings of contralateral patent processus vaginalis (PPV) via DL.
- Sensitivity and specificity of DL for detecting contralateral PPV were calculated.
Main Results:
- The mean age of the 50 children was 3 years.
- Diagnostic laparoscopy identified a contralateral patent processus vaginalis (PPV) in 13 out of 42 patients (31%) with a confirmed unilateral inguinal hernia.
- DL demonstrated high diagnostic accuracy (98% sensitivity, 100% specificity) with a mean operative time of 48 minutes and no reported complications.
Conclusions:
- Diagnostic laparoscopy is a safe and effective method for evaluating pediatric patients with unilateral inguinal hernias.
- The study confirmed a 31% incidence of contralateral patent processus vaginalis (PPV) in this population.
- Utilizing DL can eliminate the need for routine contralateral exploration in approximately 69% of cases, optimizing surgical management.
Background:
Routine contralateral inguinal exploration following unilateral herniorrhaphy in children remains controversial. Contralateral patent processus vaginalis (PPV) incidence decreases from 80% in young infants to about 20% to 30% in the adult population. However, the incidence of a clinical hernia appearing subsequently following unilateral herniorrhaphy is 6% to 10%.
Methods:
Fifty consecutive children were evaluated by diagnostic laparoscopy (DL) at the time of inguinal herniorrhaphy.
Results:
The mean age was 3 years. Thirteen of 42 patients (31%) with a symptomatic confirmed hernia had a contralateral PPV by DL. The mean operating time was 48 minutes. The sensitivity was 98% with a specificity of 100%. No child suffered a complication due to DL.
Conclusions:
We found diagnostic laparoscopy in children with evidence of unilateral inguinal hernia (1) was safe, (2) revealed a 31% incidence of contralateral PPV, and (3) eliminated the need for contralateral exploration in 69%.