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Anorectal function and endopelvic dissection in patients with repaired imperforate anus
1Department of Surgery, National Taiwan University Hospital, Taipei, Republic of China.
Pediatric Surgery International
|May 1, 1998
Summary
Anorectal malformation repair outcomes vary by surgical technique. Limited sagittal anorectoplasty (LSARP) showed better functional results than posterior sagittal anorectoplasty (PSARP), with endopelvic dissection extent being a key factor.
Area of Science:
- Pediatric Surgery
- Gastroenterology
- Anorectal Malformations
Background:
- Anorectal malformations (ARMs) are congenital conditions requiring surgical correction.
- Postoperative anorectal function significantly impacts a child's quality of life.
- Evaluating functional outcomes after different surgical approaches is crucial for optimizing patient care.
Purpose of the Study:
- To compare postoperative anorectal function in patients with ARM treated with different surgical techniques.
- To identify factors influencing constipation and soiling after ARM repair.
- To assess the impact of surgical approach on long-term functional outcomes.
Main Methods:
- Retrospective follow-up of 58 patients with ARM.
- Analysis of functional outcomes including constipation and anal soiling.
- Correlation of manometric findings (resting rectal pressure, anorectal pressure gradient) with functional status.
- Comparison of outcomes between limited sagittal anorectoplasty (LSARP), posterior sagittal anorectoplasty (PSARP), and Rehbein's mucosa-stripping endorectal pull-through and anterior sagittal perineal anorectoplasty (R-ASAP).
Main Results:
- Constipation rates were 35.7% with LSARP, 72.0% with PSARP, and 0% with R-ASAP.
- Persistent constipation beyond 2 years was more common with LSARP (3/25) and PSARP (10/25) than R-ASAP.
- Anal soiling occurred in 4.3% of LSARP patients and 27.3% of PSARP patients.
- Normal anorectal function by toilet training was achieved in 86.9% of LSARP and 50.0% of PSARP patients.
- Manometric studies showed distinct pressure profiles in constipated versus soiled patients.
Conclusions:
- R-ASAP demonstrated superior functional outcomes with no constipation in this cohort.
- The extent of endopelvic dissection appears to be a more significant factor in functional outcomes than sphincter preservation.
- Long-term functional success in ARM repair is influenced by surgical technique and potentially the degree of pelvic dissection.