The Impact of Sacral Neuromodulation on Sexual Dysfunction

Area of Science:

• Urology
• Neuroscience
• Sexual Medicine

Background:

• Sacral neuromodulation (SNM) is a recognized treatment for urinary and bowel disorders.
• The efficacy of SNM in treating sexual dysfunction is not well-established.
• Understanding SNM's impact on sexual function is crucial for comprehensive patient care.

Purpose of the Study:

• To evaluate the effect of sacral neuromodulation (SNM) on sexual function in patients.
• To investigate the association between SNM outcomes and pre-treatment factors: age, functional diagnosis, and post-void residual urine (PVR).
• To assess changes in male and female sexual function using validated questionnaires.

Main Methods:

• Retrospective analysis of patients who underwent SNM.
• Sexual function assessed pre- and post-SNM using the International Index of Erectile Function (IIEF-5) for men and the Female Sexual Function Index (FSFI) for women.
• Correlation analysis of IIEF-5 and FSFI scores with age, functional diagnosis, and PVR.

Main Results:

• A total of 24 patients (15 female, 9 male) were analyzed with a median follow-up of 20.7 months.
• Modest improvements were observed in IIEF-5 scores (p=0.06) and FSFI total scores (p=0.2).
• Significant associations were found between functional diagnosis and FSFI scores, particularly in arousal, lubrication, and satisfaction, with notable benefits in patients with detrusor overactivity and impaired contractility.

Conclusions:

• Sacral neuromodulation (SNM) shows a potentially favorable impact on sexual function, despite modest observed gains.
• Functional diagnosis, specifically detrusor overactivity with impaired contractility, appears to be associated with better sexual function outcomes.
• Further research is warranted to fully elucidate the role of SNM in managing sexual dysfunction.