The value of dorsal column stimulation in multiple sclerosis

Area of Science:

• Neurology
• Rehabilitation Medicine

Background:

• Multiple sclerosis (MS) often causes debilitating motor and bladder dysfunction.
• Current treatments for MS symptoms have limitations, necessitating exploration of novel therapeutic approaches.

Purpose of the Study:

• To evaluate the efficacy of electrical spinal cord stimulation (SCS) in managing motor and bladder dysfunction in patients with multiple sclerosis.
• To determine if SCS offers a viable treatment option for selected MS patients.

Main Methods:

• A controlled study involving eleven patients (10 definite MS, 1 probable MS) with varying motor and bladder dysfunction.
• Patients underwent spinal cord stimulation, with symptom fluctuations monitored pre-study.
• Objective measures included extension/flexion torque and subjective reports of bladder symptoms (hesitancy, urgency, frequency).

Main Results:

• Spinal cord stimulation significantly improved bladder symptoms, notably reducing hesitancy and urgency.
• Voiding frequency decreased by 8% in 90% of patients.
• Motor function showed improvement, with a 9% increase in maximum extension torque and a 29% increase in flexion torque during stimulation.

Conclusions:

• Electrical spinal cord stimulation is a potentially effective treatment for bladder dysfunction in multiple sclerosis patients.
• SCS may also offer benefits for motor function, particularly in patients with preserved muscular reserve.
• Spinal cord stimulation presents a promising therapeutic indication for carefully selected MS patients with specific symptom profiles.