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Related Experiment Videos

Urethral and perineal instability.

R L Vereecken, M Cornelissen, J Das

    Urologia Internationalis
    |January 1, 1985
    PubMed
    Summary

    Urethral pressure variations were observed in 18% of female patients during bladder filling, linked to muscle activity changes. This suggests urethral instability may be a factor in bladder overactivity, particularly in younger individuals.

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    Area of Science:

    • Urology
    • Neuroscience
    • Physiology

    Background:

    • Urethral pressure variations and associated muscle activity are not fully understood.
    • Bladder overactivity is a common condition with significant impact on quality of life.

    Purpose of the Study:

    • To investigate urethral pressure variations during bladder filling in female patients.
    • To explore the relationship between urethral pressure fluctuations, striated muscle activity, and bladder overactivity.

    Main Methods:

    • Monitoring urethral pressure variations in 271 female patients during bladder filling.
    • Assessing electromyography (EMG) activity of anal and periurethral striated muscles concurrently.

    Main Results:

    • 50 out of 271 female patients (18.5%) exhibited urethral pressure variations ≥ 15 cm H2O.
    • These pressure changes correlated with variations in EMG activity of anal and periurethral striated muscles.

    Conclusions:

    • Urethral instability, characterized by pressure variations and altered muscle activity, is present in a subset of female patients.
    • This instability may be linked to bladder overactivity, especially in younger populations, warranting further investigation into pathophysiological mechanisms and therapeutic strategies.

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