The Kock pouch: initial experience and complications

Area of Science:

• Urology
• Surgical Oncology
• Reconstructive Surgery

Background:

• Urinary diversion is a critical component of treatment for pelvic malignancies and refractory bladder conditions.
• The Kock continent internal reservoir procedure offers a continent alternative to traditional urinary diversions.
• Modifications to the Kock pouch aim to improve its reliability and patient outcomes.

Purpose of the Study:

• To evaluate the safety and efficacy of the modified Kock continent internal reservoir procedure.
• To assess early and late complications associated with this urinary diversion technique.
• To determine the suitability of the modified Kock pouch as an alternative urinary diversion.

Main Methods:

• Retrospective review of 15 patients undergoing the modified Kock continent internal reservoir procedure since December 1984.
• Procedures included simultaneous anterior exenteration, ileal conduit conversion, and cystectomy for interstitial cystitis.
• Analysis of operative outcomes, early complications (urinary leak, fistula), and late complications (incontinence, catheterization difficulty).

Main Results:

• No operative mortality was observed in the 15 patients.
• Early complications included 2 urinary leaks and 1 enteric-Kock pouch fistula, all successfully managed.
• Late complications involved urinary incontinence due to efferent nipple valve issues in 3 patients, with 2 requiring revision and 1 awaiting it.

Conclusions:

• The modified Kock continent internal reservoir procedure demonstrates a favorable safety profile with no operative mortality.
• While early and late complications can occur, they appear manageable through surgical intervention or patient acceptance.
• This modified Kock pouch procedure represents a promising alternative for urinary diversion in carefully selected patients.