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Related Experiment Videos

Urodynamics in spinal shock patients.

A B Rossier, B A Fam, M Dibenedetto

    The Journal of Urology
    |December 1, 1979
    PubMed
    Summary
    This summary is machine-generated.

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    Spinal shock patients with complete cord lesions show increased sympathetic activity in the urethra. External sphincters escape spinal shock, indicating preserved reflex activity despite initial areflexia.

    Area of Science:

    • Neuroscience
    • Urology

    Background:

    • Spinal shock is characterized by areflexia following traumatic complete spinal cord lesions.
    • Understanding the preserved function in sphincters during spinal shock is crucial for patient management.

    Purpose of the Study:

    • To investigate the urodynamic and electromyographic responses in patients with spinal shock.
    • To determine the extent to which urethral and anal sphincters are affected by spinal shock.

    Main Methods:

    • Cystometry, urethral pressure profilometry, and electromyography of pelvic floor sphincters were used.
    • Anal and rectal pressure recordings were also performed in 17 patients.

    Main Results:

    • Elevated urethral resistance and external sphincter pressure during bladder filling, without increased electromyography, suggest sympathetic overactivity.

    Related Experiment Videos

  • Urethral pressure profiles indicated sensory afferent involvement in reflex activity.
  • External urethral and anal sphincters demonstrated preserved high pressures and somatic activity, escaping spinal shock areflexia.

    • Conclusions:

    • Sympathetic activity significantly impacts urethral smooth muscle in spinal shock.
    • External urethral and anal sphincters can maintain reflex activity, challenging the definition of complete spinal shock.