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Related Experiment Videos

Evolution of the rectal bladder as a method for urinary diversion

M A Ghoneim, A B Shehab-El-Din, A K Ashamallah

    The Journal of Urology
    |December 1, 1981
    PubMed
    Summary

    This study improved the rectal bladder for urinary diversion by adding a submucosal tunnel to prevent reflux and using imipramine hydrochloride to control nocturnal leakage, significantly enhancing patient outcomes.

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    Area of Science:

    • Urology
    • Surgical Innovation
    • Continence Management

    Background:

    • Rectal bladder diversion presents challenges, including recurrent pyelonephritis (30%) and nocturnal urinary leakage (40%).
    • Previous methods lacked effective solutions for these common complications.

    Purpose of the Study:

    • To evaluate a submucosal tunnel technique for preventing vesicoureteral reflux in rectal bladders.
    • To assess the efficacy of imipramine hydrochloride in managing nocturnal urinary leakage (enuresis).

    Main Methods:

    • A randomized prospective study involving a submucosal tunnel construction.
    • Urodynamic measurements (flowmetry, rectal pressure, anal electromyography) to assess voiding mechanics.
    • A randomized, placebo-controlled clinical trial for imipramine hydrochloride efficacy in enuresis.

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    Main Results:

    • The submucosal tunnel technique achieved a patent unidirectional urine flow in 82.5% of cases.
    • Voiding is primarily driven by increased intra-abdominal pressure, not rectal muscle contraction.
    • Imipramine hydrochloride effectively controlled enuresis in 75% of patients.

    Conclusions:

    • The submucosal tunnel significantly reduces reflux, and imipramine hydrochloride addresses nocturnal leakage.
    • These modifications make the rectal bladder with terminal colostomy a highly recommended option for permanent urinary diversion.