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Case Reports
. 2006 Oct;21(10):1771-3.
doi: 10.1002/mds.21047.

Chorea induced by globus pallidus externus stimulation in a dystonic patient

Servane Mouton  1 , Jing Xie-Brustolin, Patrick Mertens, Gustavo Polo, Philippe Damier, Emmanuel Broussolle, Stéphane Thobois
Affiliations
Case Reports

Chorea induced by globus pallidus externus stimulation in a dystonic patient

Servane Mouton et al. Mov Disord. 2006 Oct.

Abstract

Bilateral high-frequency stimulation of the internal part of the pallidum has proven its efficacy in improving motor symptoms of dystonia. In Parkinson's disease, the stimulation of the external pallidum (GPe) can induce dyskinesias. This has never been described in dystonia. We report here a case of abnormal movements induced by the stimulation of GPe in a dystonic patient and discuss the pathophysiological mechanisms.

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