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Related Experiment Videos

Evoked cavernous activity: normal values.

Claire C Yang1, Ugur Yilmaz, Brenda G Vicars

  • 1Veterans Affairs Puget Sound Health Care System, Seattle, Washington, USA. cyang@u.washington.edu

The Journal of Urology
|April 22, 2008
PubMed
Summary
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Evoked cavernous activity, an electrodiagnostic test for autonomic innervation of the corpora cavernosa, is measurable in healthy men. This study provides normative data for this test, crucial for understanding erectile function.

Area of Science:

  • Neurophysiology
  • Urology
  • Autonomic Nervous System Function

Background:

  • Erectile dysfunction can stem from autonomic nervous system dysfunction.
  • Evoked cavernous activity (ECA) is an electrodiagnostic test to assess autonomic innervation of the corpora cavernosa.
  • Normative data for ECA in healthy individuals is lacking.

Purpose of the Study:

  • To present normative data for evoked cavernous activity (ECA).
  • To evaluate ECA as a diagnostic tool for autonomic innervation of the corpora cavernosa.
  • To establish baseline electrophysiological parameters in healthy men.

Main Methods:

  • 37 healthy, sexually active, potent men were enrolled.
  • International Index of Erectile Function (IIEF) questionnaire administered.

Related Experiment Videos

  • Simultaneous ECA and hand/foot sympathetic skin response (SSR) testing performed.

    • Main Results:

    • 36 men had discernible ECA and SSR.
    • Mean IIEF erectile domain score was 27.
    • ECA showed consistent morphology and latency relative to SSR, but variable amplitude. No age-related changes in ECA quality or latency were observed.

    Conclusions:

    • Evoked cavernous activity is consistently measurable in healthy, potent men across a range of ages.
    • ECA waveforms exhibit variability, typical of autonomic nervous system responses.
    • Further research is needed to determine the association between ECA and erectile function.