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Neural stimulation for chronic voiding dysfunctions

A A Elabbady1, M M Hassouna, M M Elhilali

  • 1Department of Urology, Royal Victoria Hospital, Montreal, Quebec, Canada.

The Journal of Urology
|December 1, 1994
PubMed
Summary
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Sacral nerve root stimulation offers a promising treatment for difficult voiding dysfunctions. This study shows significant improvements in urinary retention and voiding symptoms after S3 nerve implantation in selected patients.

Area of Science:

  • Urology
  • Neurology
  • Medical Devices

Background:

  • Difficult voiding dysfunctions are challenging to manage with conventional therapies.
  • Neural stimulation of sacral nerve roots presents a potential therapeutic avenue.

Purpose of the Study:

  • To evaluate the efficacy of sacral nerve root stimulation (S3) in patients with refractory voiding dysfunction.
  • To assess improvements in urinary retention, voiding symptoms, and quality of life.

Main Methods:

  • 50 patients with voiding dysfunction underwent percutaneous nerve evaluation of the S3 nerve root.
  • 17 patients with satisfactory response proceeded to unilateral S3 foramen implantation.
  • Preoperative and postoperative urodynamic studies, symptom diaries, and quality of life questionnaires were used for assessment.

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Main Results:

  • Group 1 (urinary retention) showed significantly increased voided volume (23% to 81.9%), decreased residual volume, and increased maximum flow rate (7.8 to 18.0 ml/s).
  • Intermittent self-catheterization frequency decreased from 4.2 to 1.3 times daily in Group 1.
  • Group 2 (other dysfunctions) reported significant improvements in pain (85%), frequency (37%), urgency (42%), and leaking episodes (50%).

Conclusions:

  • Unilateral S3 sacral nerve implantation is an effective treatment for selected patients with difficult voiding dysfunctions.
  • The procedure demonstrates significant functional improvements and enhanced quality of life.
  • Sacral nerve stimulation is a viable and promising modality for managing complex voiding issues.