Bilateral pallidal deep brain stimulation in primary Meige syndrome

Area of Science:

• Neurology
• Neurosurgery

Background:

• Meige syndrome is an idiopathic movement disorder causing craniofacial and cervical dystonias.
• Deep brain stimulation (DBS) of the globus pallidus internus (GPi) is a recognized treatment for generalized dystonia.
• Limited data exists on GPi-DBS efficacy specifically for Meige syndrome.

Purpose of the Study:

• To evaluate the long-term effectiveness of bilateral GPi-DBS in patients with primary Meige syndrome.
• To assess the impact of GPi-DBS on dystonia severity and disability in Meige syndrome.

Main Methods:

• A cohort of 5 patients with disabling Meige syndrome underwent bilateral GPi-DBS.
• Patients were assessed pre-operatively and at long-term follow-up using the Burke-Fahn-Marsden Dystonia Rating Scale (BFMDRS).
• BFMDRS movement and disability scores were analyzed to quantify treatment outcomes.

Main Results:

• Bilateral GPi-DBS demonstrated sustained and significant improvement in dystonia symptoms.
• Mean BFMDRS movement scores improved by 84% (range, 75-94%).
• Mean BFMDRS disability scores improved by 89% (range, 80-100%) at the last follow-up.

Conclusions:

• Bilateral pallidal stimulation is an effective therapeutic option for Meige syndrome.
• GPi-DBS provides long-term relief from disabling dystonia symptoms in Meige syndrome patients.
• This study supports GPi-DBS as a beneficial treatment for Meige syndrome.