Effects of Vagus Nerve Stimulation on Progressive Myoclonus Epilepsy of Unverricht-Lundborg Type
Epilepsia, 41(8): 1046-1048, 2000 Lippincott Williams h Wilkins, Inc., Baltimore 0 International Lcague Against Epilepsy Brief Communication Effects of Vagus Nerve Stimulation on Progressive Myoclonus Epilepsy of Unverricht-Lundborg Type Brien Smith, Rhonna Shatz, *Kost Elisevich, j-Irina N. Bespalova, and -j-$MargitBurmeister Depurtment of Neurology and *Department of Neurosurgery, Henry Ford Health System, Detroit, Michigan, U.S.A.; and ?Mental Health Research Institute, ?Department of Genetics, and $Department OJ' Psychiatry, University of Michigan, Ann Arbor, Michigan, U.S.A. Summary: Purpose: A 34-year-old woman with progressive demonstrated on neurological examination. The patient re- myoclonus epilepsy of Unverricht-Lundborg type was consid- ported improved quality of life based in part on her ability to ered for vagus nerve stimulation (VNS) therapy. perform activities of daily living. Methods: After demonstration of intractability to multiple Conclusions: VNS therapy may be considered a treatment antiepileptic regimens and progressive deterioration in cerebel- option for progressive myoclonus epilepsy. The effects of VNS lar function, the patient was implanted with a vagus nerve on seizure control and cerebellar dysfunction may provide stimulator and followed for 1 year. Neurological status, seizure clues to the underlying mechanism(s) of action. Key Words: frequency, and parameter changes were analyzed. Vagus nerve-Progressive myoclonus epilepsy-Electrical Results: VNS therapy resulted in reduction of seizures (more stimulation-Epilepsy-Seizure.
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