Maximal electrical stimulation in neurogenic detrusor hyperactivity: experiences in multiple sclerosis

Area of Science:

• Neurology
• Urology
• Biomedical Engineering

Background:

• Neurogenic bladder dysfunction is a common complication of multiple sclerosis (MS).
• Motor urge incontinence significantly impacts the quality of life for MS patients.
• Current treatment options for MS-related bladder dysfunction have limitations.

Purpose of the Study:

• To evaluate the efficacy of maximal tolerable electrical stimulation for neurogenic bladder dysfunction in multiple sclerosis.
• To assess the feasibility and patient experience with intravaginal electrical stimulation.

Main Methods:

• 27 female patients with MS-induced neurogenic bladder dysfunction were enrolled.
• Treatment involved an intravaginal electrode and an external pulse generator with adjustable parameters.
• Maximal tolerable electrical stimuli at 20 Hz were applied, with urodynamic evaluations pre- and post-treatment.

Main Results:

• 85% of patients experienced symptom relief during electrical stimulation.
• Three months post-treatment, 18% remained symptom-free, with reduced symptom severity in others.
• Intravaginal electrical stimulation demonstrated a practical approach to symptom management.

Conclusions:

• Maximal tolerable electrical stimulation is a viable option for managing motor urge incontinence in MS.
• Chronic stimulation is required to maintain the therapeutic benefits.
• Intravaginal electrodes offer a practical delivery method for this intervention.