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The unstable bladder--fact or artefact?

P D Ramsden, J C Smith, J M Pierce

    British Journal of Urology
    |January 1, 1977
    PubMed
    Summary
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    Bladder instability is a consistent finding in urodynamic studies, regardless of filling rate or patient position. This research confirms its reliability in diagnosing bladder issues.

    Area of Science:

    • Urology
    • Nephrology
    • Physiology

    Background:

    • Urodynamic studies are crucial for evaluating lower urinary tract symptoms.
    • Cystometrograms assess bladder function during filling and voiding.
    • Understanding factors influencing cystometrogram accuracy is important.

    Purpose of the Study:

    • To evaluate the consistency of bladder instability detection during cystometrograms.
    • To determine the influence of filling rate and patient position on urodynamic findings.

    Main Methods:

    • 100 patients referred for urodynamic study underwent multiple cystometrograms.
    • Bladder filling was performed at varying rates and in different positions.
    • Pressure measurements were recorded during physiological bladder filling.

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    Main Results:

    • Bladder instability was a highly consistent finding across all tested conditions.
    • Detection of bladder instability was independent of the filling rate used.
    • Patient position did not affect the detection of bladder instability.

    Conclusions:

    • Cystometrograms reliably detect bladder instability irrespective of filling parameters.
    • Urodynamic assessment of bladder instability is robust and consistent.