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Gastric muscularis as a urinary sphincter
A G Aprikian1, Z Guan, K Nielson
1Department of Surgery, Montreal Children's Hospital, McGill University, Quebec, Canada.
Urology
|February 1, 1994
Summary
Gastric muscularis shows promise as a substitute urinary sphincter in rats, successfully maintaining continence after ileal conduit surgery. This research explores a novel approach for managing urinary incontinence.
Area of Science:
- Urology
- Surgical Innovation
- Animal Models
Background:
- Urinary incontinence significantly impacts quality of life.
- Current treatments for sphincteric urinary incontinence have limitations.
- Exploring novel sphincter substitutes is crucial for improved patient outcomes.
Purpose of the Study:
- To evaluate the efficacy of gastric muscularis as a functional urinary sphincter.
- To assess the viability and integration of gastric tissue in a rat model.
- To determine the potential of this technique in managing urinary incontinence.
Main Methods:
- An ileal conduit was created in 14 rats to induce urinary incontinence.
- Gastric muscle segments were surgically placed around the ileal conduit.
- Animals were monitored for urine leakage, and pressure profilometry was performed.
Main Results:
- Pressure profilometry confirmed elevated pressures in the gastric sphincter zone.
- 13 out of 14 animals showed no intra-abdominal complications.
- Conduits remained catheterizable and continent, with viable gastric and ileal tissues.
Conclusions:
- Gastric muscularis demonstrates potential as a substitute urinary sphincter.
- This technique offers a promising avenue for treating sphincteric urinary incontinence.
- Further research is warranted to explore clinical applications.