Sacral electrical neuromodulation as an alternative treatment option for lower urinary tract dysfunction

Area of Science:

• Urology
• Neurology
• Biomedical Engineering

Background:

• Electrical stimulation has been used for urinary incontinence for decades.
• Chronic sacral nerve stimulation was introduced in 1981 for refractory lower urinary tract dysfunction.
• Temporary neuromodulation offers limited sustained therapeutic effects.

Purpose of the Study:

• To evaluate the efficacy of chronic unilateral S3 sacral spinal nerve stimulation for vesicourethral dysfunction.
• To assess long-term symptomatic improvement in patients with urinary retention and motor urge incontinence.
• To determine the economic viability of chronic sacral neuromodulation.

Main Methods:

• Chronic unilateral S3 sacral spinal nerve stimulation was applied to 43 patients.
• Patients were followed up for a mean of 43.6 months post-implantation.
• Outcomes measured included symptomatic improvement in urinary retention and motor urge incontinence.

Main Results:

• Sustained symptomatic improvement exceeding 50% was achieved in 72.2% of motor urge incontinence patients (13/18).
• 85.7% of urinary retention patients (18/21) experienced significant improvement.
• Chronic neuromodulation provided sustained therapeutic effects, unlike temporary methods.

Conclusions:

• Chronic unilateral S3 sacral nerve stimulation is highly effective for urinary retention and motor urge incontinence.
• This neuromodulation technique offers a sustained therapeutic effect for treatment responders.
• Chronic sacral neuromodulation is a cost-effective long-term treatment option compared to alternatives.