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Related Experiment Videos

Erectile dysfunction in multiple sclerosis.

H J Kirkeby1, E U Poulsen, T Petersen

  • 1Department of Urology, Aarhus Kommunehospital, Denmark.

Neurology
|September 1, 1988
PubMed
Summary
This summary is machine-generated.

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Pudendal evoked potential (PEP) and bulbocavernous reflex (BCR) tests are more sensitive for diagnosing neurogenic erectile dysfunction (ED) in men with multiple sclerosis (MS) than nocturnal erectile activity tests.

Area of Science:

  • Neuroscience
  • Urology
  • Neurology

Background:

  • Erectile dysfunction (ED) is a common complication in men with multiple sclerosis (MS).
  • The underlying causes of ED in MS patients can be complex, involving both neurogenic and psychogenic factors.
  • Accurate diagnostic tools are crucial for effective management.

Purpose of the Study:

  • To evaluate the diagnostic utility of penile vascular studies, pudendal evoked potential (PEP), bulbocavernous reflex (BCR) testing, and nocturnal erectile activity monitoring in men with MS and ED.
  • To determine the sensitivity of these tests in identifying neurogenic erectile dysfunction (ED).

Main Methods:

  • The study included 29 men with MS and erectile problems.
  • Methods included penile arterial inflow and venous outflow assessment, PEP, BCR testing, nocturnal erectile activity monitoring, and intracavernous papaverine injection.

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  • Control group: six MS patients without erectile problems.

    • Main Results:

    • Penile vascular studies were normal in most patients.
    • Abnormal PEP and/or BCR were found in 26 out of 29 patients, suggesting a neurogenic origin for ED.
    • Nocturnal erectile activity was abnormal in 9 patients with abnormal PEP and/or BCR.
    • Intracavernous papaverine successfully induced erections in 27 patients, with dosage inversely related to disability.
    • PEP/BCR testing showed higher sensitivity for neurogenic ED compared to nocturnal erectile activity.

    Conclusions:

    • PEP and BCR testing appear more sensitive than nocturnal erectile activity for diagnosing neurogenic ED in MS patients.
    • A significant portion of ED in this MS cohort was attributed to neurogenic causes (26 patients), with a smaller subset having psychogenic ED (3 patients).
    • Disability score did not strongly correlate with sexual function or test abnormalities.