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Related Experiment Videos

The vesical sphincter electromyogram in children with normal and abnormal voiding patterns.

M Maizels, W E Kaplan, L R King

    The Journal of Urology
    |January 1, 1983
    PubMed
    Summary
    This summary is machine-generated.

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    Electromyography of the vesical sphincter reveals normal voiding patterns in children exhibit synergy. Abnormal patterns may show dyssynergia, particularly in girls, highlighting its diagnostic value.

    Area of Science:

    • Pediatric Urology
    • Neuro-urology
    • Electromyography

    Background:

    • Abnormal voiding patterns in children are common.
    • Electromyography (EMG) of the vesical sphincter can help diagnose voiding dysfunction.
    • Normal vesical sphincter EMG patterns in children have not been well-characterized.

    Purpose of the Study:

    • To establish the normal electromyogram (EMG) patterns of the vesical sphincter during voiding in children.
    • To compare normal and abnormal vesical sphincter EMG patterns.
    • To assess the correlation between EMG findings and clinical voiding patterns.

    Main Methods:

    • Surface electrode recordings of vesical sphincter electromyogram (EMG) during voiding.
    • Analysis of EMG patterns in 39 children with normal voiding.

    Related Experiment Videos

  • Comparison with EMG patterns from 86 children with abnormal voiding patterns.

    • Main Results:

    • All 39 children with normal voiding demonstrated vesical sphincter synergy.
    • 31% of children with abnormal voiding patterns exhibited sphincter dyssynergia.
    • Sphincter dyssynergia was exclusively observed in children with abnormal voiding patterns (p < 0.005).
    • A significant gender disparity was noted in dyssynergia, with 89% being girls.

    Conclusions:

    • Vesical sphincter electromyography (EMG) effectively differentiates normal from abnormal voiding patterns in children.
    • Sphincter synergy is characteristic of normal voiding, while dyssynergia indicates abnormal voiding.
    • EMG diagnosis of synergy and dyssynergia correlates well with clinical observations.