The valved S-shaped rectosigmoid pouch for continent urinary diversion

Area of Science:

• Urology
• Surgical Innovation
• Gastrointestinal Surgery

Background:

• Urinary diversion is a critical procedure for managing bladder dysfunction.
• Existing methods can be complex and associated with complications.
• There is a need for simpler, effective continent urinary diversion techniques.

Purpose of the Study:

• To evaluate the efficacy and safety of a novel valved S-shaped rectosigmoid pouch for continent urinary diversion.
• To compare this technique with existing methods.

Main Methods:

• Continent urinary diversion using a detubularized and reconfigured 30 cm rectosigmoid segment.
• Antireflux ureteral reimplantation and an intussusception valve to prevent reflux.
• Temporary transverse colostomy for 6-8 weeks.
• Follow-up included clinical assessment, contrast studies, and urodynamic evaluation.

Main Results:

• All 15 patients achieved daytime and nighttime urinary continence with 3-6 hour voiding intervals.
• No symptomatic urinary tract infections were reported.
• One patient experienced mild hyperchloremic acidosis; no abdominal distention or constipation.
• Contrast studies confirmed valve competence in 14/15 patients; revision was successful for the one with reflux.
• Urodynamic studies showed a mean pouch capacity of 600 ml (range 400-900 ml) and low intraluminal pressure.

Conclusions:

• The valved S-shaped rectosigmoid pouch is a faster, simpler surgical option for continent urinary diversion.
• It offers a smooth postoperative course by avoiding proximal intestinal anastomosis.
• This technique demonstrates high efficacy in achieving urinary continence with a favorable safety profile.