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Motor cortex stimulation for neuropathic facial pain
Nikolai G Rainov1, Volkmar Heidecke
1University of Liverpool, Department of Neurological Science, Walton Centré for Neurology and Neurosurgery NHS Trust, Clinical Sciences Centre for Research and Education, Lower Lane, Liverpool L9 7LJ, UK. rainov@liv.ac.uk
Neurological Research
|March 15, 2003
Summary
Motor cortex stimulation (MCS) effectively treated refractory neuropathic facial pain in two patients. This neuromodulation technique provided significant and stable long-term pain relief, offering a new therapeutic option.
Area of Science:
- Neurology
- Neurosurgery
- Pain Medicine
Background:
- Facial neuralgia, often neuropathic, presents a challenge due to resistance to conventional treatments.
- Idiopathic trigeminal neuropathy and surgical trauma are potential causes of severe facial pain.
Observation:
- Two patients with intractable unilateral facial neuropathic pain received motor cortex stimulation (MCS).
- Stimulation was delivered via a quadripolar electrode placed contralateral to the affected facial area.
Findings:
- MCS achieved immediate analgesia, reducing pain by over 50% in both patients.
- A stable analgesic effect exceeding 50% pain reduction was maintained over a 72-month follow-up period.
Implications:
- Motor cortex stimulation shows promise as a long-term treatment for refractory neuropathic facial pain.
- Further research into MCS indications and brain mechanisms is warranted to optimize its clinical application.