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Related Experiment Videos

Cavernosal nerve mapping: current data and applications.

L Klotz1

  • 1Division of Urology, Sunnybrook & Women's College Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada. Laurence.Klotz@sw.ca

BJU International
|December 18, 2003
PubMed
Summary
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Intraoperative nerve stimulation during prostatectomy can predict erectile function recovery. The Cavermap system aids nerve sparing, improving nocturnal penile tumescence in patients one year post-surgery.

Area of Science:

  • Urology
  • Neuroscience
  • Surgical Technology

Background:

  • Nerve-sparing prostatectomy often yields suboptimal erectile function outcomes.
  • Optimizing nerve sparing is crucial, supported by data linking sildenafil response to bilateral nerve sparing.
  • Cavernosal nerves are challenging to visualize due to variable courses.

Purpose of the Study:

  • To evaluate the efficacy of intraoperative cavernosal nerve stimulation for preserving erectile function after prostatectomy.
  • To assess the Cavermap system's ability to monitor nerve function and predict recovery.

Main Methods:

  • A phase 2 and phase 3 single-blinded, randomized, multicentre study compared Cavermap-assisted prostatectomy with conventional nerve sparing.
  • Intraoperative nerve stimulation with tumescence monitoring was performed using the Cavermap system.

Related Experiment Videos

  • Nocturnal tumescence duration was assessed at one year post-surgery.

    • Main Results:

    • Intraoperative nerve stimulation consistently demonstrated a tumescent response, albeit sometimes subtle.
    • Proximal nerve stimulation immediately post-prostatectomy predicted erectile function recovery.
    • Cavermap-assisted prostatectomy showed a significant benefit in nocturnal tumescence duration at one year compared to conventional methods.

    Conclusions:

    • Intraoperative cavernosal nerve stimulation and monitoring are valuable tools for assessing neural integrity after prostatectomy.
    • The Cavermap system offers a significant advantage in preserving erectile function by optimizing nerve sparing.
    • Further research into nerve grafting and stimulation during other surgeries is warranted.