Evaluation of Autonomic Nervous System Changes in Response to Stimulation by Sacral Neuromodulation

Evaluation of Autonomic Nervous System Changes in Response to Stimulation by Sacral Neuromodulation

Overactive bladder syndrome (OAB) is defined by urgent and frequent urges to urinate associated with frequent night-time urination and sometimes urinary incontinence. Sacral neuromodulation (SNM) is now one of the second-line treatments for OAB.

The mode of action of SNM is still poorly understood but a number of data from recent scientific literature suggest that SNM may act, among other things, by altering the balance of the autonomic nervous system (ANS) - located at the interface between the urinary tract and the brain structures regulating the functioning of the urinary tract.

The aim of this study would therefore be to develop a predictive tool for the effectiveness of SNM.

Inclusion Criteria:

• Male of female ≥ 18 years
• OAB syndrome
• Indication for a two-staged SNM
• Under general anaesthesia with Remifentanil and Propofol
• Patient who has given written consent to participate in the trial
• Patient willing to comply with all study procedures and duration

Exclusion Criteria:

• Tibial neuro-stimulation (last 3 months)
• Sacral neuromodulation (last 3 months)
• Botulinum toxin A intra-detrusor injection (last 9 months)
• Pregnancy in progress
• Administrative reasons
• Guardianship/curatorship