Orthotopic ileal bladder substitute after radical cystectomy: urodynamic features

Area of Science:

• Urology
• Surgical Oncology
• Reconstructive Surgery

Background:

• Cystoprostatectomy for bladder cancer often necessitates bladder substitution.
• The Studer-Zingg technique uses a detubularized ileal segment for neobladder reconstruction.
• Post-operative functional outcomes require thorough urodynamic assessment.

Purpose of the Study:

• To evaluate the urodynamic function and continence status in men following cystoprostatectomy with ileal neobladder.
• To assess the efficacy of the Studer-Zingg neobladder technique regarding urinary continence and voiding efficiency.
• To identify potential complications and factors influencing rehabilitation after neobladder surgery.

Main Methods:

• Urodynamic investigation including standard evaluation and extramural ambulatory urodynamic monitoring (e.a.m.) in 12 men.
• Assessment of daytime and nocturnal continence, voiding patterns, and residual urine.
• Evaluation of urethral pressure profile and neobladder compliance.

Main Results:

• Ten out of 12 patients were continent during the day; 3 experienced nocturnal incontinence requiring management.
• Most patients achieved adequate maximum flow rates, though 2 experienced difficulties.
• Urethral narrowing and pelvic floor incoordination were identified in some patients, necessitating interventions.
• Nocturnal incontinence incidence was 56.6%; urethral hypotonia was noted in 2 patients.

Conclusions:

• The Studer-Zingg ileal neobladder generally provides good daytime continence but nocturnal continence remains a challenge.
• Post-operative voiding efficiency can be affected by factors like urethral narrowing and pelvic floor coordination.
• Comprehensive patient education and training are crucial for optimal neobladder rehabilitation and achieving continence.