Intraoperative assessment of an implantable electrode array for cavernous nerve stimulation

Arthur Burnett, Patrick E. Teloken, Alberto Briganti, Todd Whitehurst, Francesco Montorsi

Research output: Contribution to journalArticle

Abstract

Introduction. Erectile dysfunction remains a major functional complication of radical prostatectomy in the modern era despite surgical techniques to preserve the penile autonomic nerve supply. Aim. To develop and evaluate a neurostimulation system for cavernous nerve electrical stimulation for future use as a chronic implantation device that neurotrophically promotes erectile function recovery following radical prostatectomy. Method. After radical retropubic prostatectomy, the neurovascular bundle was stimulated using a temporarily placed electrode array of an implantable neurostimulation system (20Hz frequency, 260 μ seconds pulse width, 5mA-60mA amplitude up to 10minutes), and penile circumference increases were measured. Main Outcome Measure. Increase in penile circumference. Results. Among 12 men (mean age 60.3 years) enrolled in this study, 6 (50%) demonstrated measurable increases in penile circumference in response to cavernous nerve stimulation. Among these six men, the mean increase was 5.0 mm (range 1.6 mm to 7.0 mm). Temporary surgical placement of the device was done with relative ease, and there was no evidence of injury to the neurovascular bundle. Conclusions. A chronic implantable nerve stimulation system for cavernous nerve stimulation having possible neuromodulatory effects on the recovery of penile erections after radical prostatectomy is feasible. Burnett AL, Teloken PE, Briganti A, Whitehurst T, and Montorsi F. Intraoperative assessment of an implantable electrode array for cavernous nerve stimulation.

Original languageEnglish (US)
Pages (from-to)1949-1954
Number of pages6
JournalJournal of Sexual Medicine
Volume5
Issue number8
DOIs
StatePublished - Aug 2008

Fingerprint

Implanted Electrodes
Prostatectomy
Penile Erection
Autonomic Pathways
Equipment and Supplies
Recovery of Function
Erectile Dysfunction
Electric Stimulation
Outcome Assessment (Health Care)
Wounds and Injuries

Keywords

  • Erection
  • Neuromodulation
  • Neurotrophic
  • Neurovascular Bundle
  • Penis
  • Radical Prostatectomy

ASJC Scopus subject areas

  • Urology
  • Obstetrics and Gynecology

Cite this

Intraoperative assessment of an implantable electrode array for cavernous nerve stimulation. / Burnett, Arthur; Teloken, Patrick E.; Briganti, Alberto; Whitehurst, Todd; Montorsi, Francesco.

In: Journal of Sexual Medicine, Vol. 5, No. 8, 08.2008, p. 1949-1954.

Research output: Contribution to journalArticle

Burnett, Arthur ; Teloken, Patrick E. ; Briganti, Alberto ; Whitehurst, Todd ; Montorsi, Francesco. / Intraoperative assessment of an implantable electrode array for cavernous nerve stimulation. In: Journal of Sexual Medicine. 2008 ; Vol. 5, No. 8. pp. 1949-1954.
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AB - Introduction. Erectile dysfunction remains a major functional complication of radical prostatectomy in the modern era despite surgical techniques to preserve the penile autonomic nerve supply. Aim. To develop and evaluate a neurostimulation system for cavernous nerve electrical stimulation for future use as a chronic implantation device that neurotrophically promotes erectile function recovery following radical prostatectomy. Method. After radical retropubic prostatectomy, the neurovascular bundle was stimulated using a temporarily placed electrode array of an implantable neurostimulation system (20Hz frequency, 260 μ seconds pulse width, 5mA-60mA amplitude up to 10minutes), and penile circumference increases were measured. Main Outcome Measure. Increase in penile circumference. Results. Among 12 men (mean age 60.3 years) enrolled in this study, 6 (50%) demonstrated measurable increases in penile circumference in response to cavernous nerve stimulation. Among these six men, the mean increase was 5.0 mm (range 1.6 mm to 7.0 mm). Temporary surgical placement of the device was done with relative ease, and there was no evidence of injury to the neurovascular bundle. Conclusions. A chronic implantable nerve stimulation system for cavernous nerve stimulation having possible neuromodulatory effects on the recovery of penile erections after radical prostatectomy is feasible. Burnett AL, Teloken PE, Briganti A, Whitehurst T, and Montorsi F. Intraoperative assessment of an implantable electrode array for cavernous nerve stimulation.

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