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Related Experiment Videos

Bladder stretch during increase in abdominal pressure.

S Plevnik

    Clinical Physics and Physiological Measurement : an Official Journal of the Hospital Physicists' Association, Deutsche Gesellschaft Fur Medizinische Physik and the European Federation of Organisations for Medical Physics
    |August 1, 1983
    PubMed
    Summary

    Bladder wall stretch increases with abdominal pressure but decreases with pelvic floor electrical stimulation. This suggests pelvic floor support limits bladder wall stretch and may help open the bladder neck.

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    Area of Science:

    • Urology
    • Biomedical Engineering
    • Pelvic Floor Physiology

    Background:

    • Understanding bladder dynamics is crucial for diagnosing and treating urinary incontinence and related conditions.
    • The bladder wall's response to pressure and pelvic floor muscle activity influences bladder neck function.

    Purpose of the Study:

    • To quantify the changes in single bladder projections circumference (CBP) under varying conditions.
    • To investigate the impact of abdominal pressure and pelvic floor electrical stimulation on bladder wall stretch.

    Main Methods:

    • Estimating CBP from oblique and lateral cystographs in supine and erect positions.
    • Measurements were taken during rest, straining, and with/without pelvic floor electrical stimulation.

    Main Results:

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    • Circumference of single bladder projections (CBP) increased with rising abdominal pressure, correlating with bladder flattening.
    • Electrical stimulation of the pelvic floor led to a decrease in CBP, indicating reduced bladder wall stretch.

    Conclusions:

    • Increased CBP signifies greater bladder wall stretch, potentially opening the bladder neck.
    • Pelvic floor support, enhanced by electrical stimulation, mitigates bladder flattening and limits wall stretch, thereby influencing bladder neck opening.