Related Experiment Video
Updated: Apr 16, 2026
09:46
Analysis of Gene Expression Changes in the Rat Hippocampus After Deep Brain Stimulation of the Anterior Thalamic Nucleus
Published on: March 8, 2015
11.6K
Reviving Hope: Overcoming Deep Brain Stimulation Failure With Partial Cranial Nerve Radiofrequency Ablation in
Xue Li1, Min Yan1,2,3, Bing Huang1,4
1Pain Management Center, Department of Anesthesiology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Brain and Behavior
|April 15, 2026
Summary
Partial cranial nerve radiofrequency ablation (RFA) offers a new treatment for Meige syndrome (PMS) patients who did not benefit from deep brain stimulation (DBS). This salvage therapy provides effective symptom relief and is repeatable.
Area of Science:
- Neurology
- Neurosurgery
- Pain Management
Background:
- Deep brain stimulation (DBS) is a standard treatment for refractory primary Meige syndrome (PMS).
- 30%-50% of patients experience suboptimal outcomes with DBS, necessitating alternative management strategies.
- Current management for DBS failures in PMS is undefined.
Purpose of the Study:
- To evaluate the efficacy of partial cranial nerve radiofrequency ablation (RFA) as a salvage therapy for PMS patients with suboptimal DBS outcomes.
- To assess RFA as a treatment option for patients ineligible for lead revision or with refractory symptoms.
Main Methods:
- Retrospective case series of three PMS patients classified as DBS non-responders.
- Imaging-guided partial RFA of the facial and/or mandibular nerve.
- Graded thermal protocol titrated to controlled functional impairment endpoints.
Main Results:
- Immediate symptom remission in all patients.
- Significant reduction in Burke-Fahn-Marsden Dystonia Rating Scale (BFMDRS) Movement subscores.
- Transient sequelae (e.g., mild facial paralysis) resolved within 3-6 months; one recurrence managed with repeat RFA.
Conclusions:
- Partial cranial nerve RFA is a feasible, effective, and repeatable salvage therapy for PMS after DBS failure.
- Offers a distinct peripheral mechanism of action when central neuromodulation is insufficient.
- Warrants further investigation in larger cohorts.
