The choice of continence mechanism in continent (supra)vesical urinary diversion.

By creating continent supravesical diversions or continent vesicostomies, various methods of continence mechanism can be distinguished. They all are based on the principle that the pressure in the conduit is higher than in the reservoir. Twenty-eight patients with various urinary diversions and different continence mechanisms were followed up by clinical investigation, questioning and urodynamic evaluation. The latter showed similar results with regard to efferent loop pressure. The best results concerning easy catheterization and safe continence are reached by appendix stoma and tapered ileum.