Urologic intestinal reservoirs: the continent outlet

Area of Science:

• Urology
• Surgical Engineering

Background:

• Standardized terminology and functional assessment are crucial for comparing continent urinary diversion outlets.
• Current classifications include extraluminal and intraluminal continent outlets based on their location.
• Extraluminal outlets are simpler but risk overflow incontinence.

Purpose of the Study:

• To highlight the importance of standardized terminology and functional assessment for continent outlets.
• To compare different types of continent outlets based on their functional principles and clinical outcomes.

Main Methods:

• Classification of continent mechanisms into extraluminal and intraluminal types.
• Review of surgical techniques and complication rates associated with different outlet constructions.
• Evaluation of the flap valve principle for continent outlet construction.

Main Results:

• Extraluminal continent outlets pose a risk of overflow incontinence.
• Invagination or intussusception nipple valves have a steep learning curve and high complication rates.
• The flap valve principle demonstrates a high rate of complete continence with acceptable complications.

Conclusions:

• Adoption of standardized terminology and functional assessment by the International Continence Society is recommended for better comparability.
• The flap valve principle is increasingly favored for constructing continent outlets due to its efficacy and safety profile.