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European experience with bilateral sacral neuromodulation in patients with chronic lower urinary tract dysfunction
E V van Kerrebroeck1, W A Scheepens, R A de Bie
1Department of Urology, Maastricht University Hospital, P. Debyelaan 25, PO Box 5800, 6202 AZ, Maastricht, The Netherlands. Kerrebroeck@urology.azm.nl
The Urologic Clinics of North America
|February 9, 2005
Summary
Bilateral sacral nerve stimulation may benefit some patients when unilateral approaches fail. Further research is needed to identify specific patient groups for optimal outcomes with sacral nerve stimulation (SNS).
Area of Science:
- Neurology
- Urology
- Biomedical Engineering
Background:
- Sacral nerve stimulation (SNS) is a treatment for lower urinary tract dysfunction.
- Previous studies suggest potential summation effects with bilateral SNS.
- Comparative trials have not consistently shown superiority of bilateral over unilateral SNS.
Purpose of the Study:
- To evaluate the efficacy of unilateral versus bilateral sacral neuromodulation.
- To determine if bilateral SNS offers advantages in specific patient populations.
- To guide future clinical research in SNS.
Main Methods:
- A comparative clinical trial assessing unilateral and bilateral sacral neuromodulation.
- Analysis of patient responses to unilateral and bilateral percutaneous nerve evaluation (PNE) tests.
- Evaluation of symptom relief in individuals undergoing SNS.
Main Results:
- No significant differences were found between unilateral and bilateral neuromodulation in the overall trial.
- However, a subset of patients experienced symptom relief exclusively with bilateral stimulation.
- Unilateral PNE failure suggests a potential benefit from a subsequent bilateral test.
Conclusions:
- Bilateral SNS may be a viable option for patients unresponsive to unilateral treatment.
- Further research is required to identify patient subgroups that benefit most from bilateral SNS.
- Long-term follow-up studies are essential to optimize SNS outcomes.