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Contraversive eye deviation during stimulation of the subthalamic region.

Abstract : Contraversive eye deviation (CED) is most often observed intraoperatively during subthalamic nucleus implantation for Parkinson's disease and considered to result from wrong electrode positioning. We report on a woman, bilaterally implanted in the subthalamic nucleus for severe Parkinson's disease disclosing long-lasting CED only when the stimulators were activated separately. Clinical examination and eye movements recording in this patient showed that CED occurred when stimulation was applied at the site and at similar intensity used for the best antiparkinsonian effect. These results suggest that the subthalamic area may be involved in orienting movements, either through the subthalamic nucleus itself or the fibers from the Frontal Eye Fields. Interestingly, this report shows that CED may be corrected by bilateral stimulation and that CED may not necessarily implicate electrode repositioning.
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https://www.hal.inserm.fr/inserm-00383804
Contributor : Jean-Paul Issartel <>
Submitted on : Wednesday, May 13, 2009 - 3:49:42 PM
Last modification on : Friday, November 6, 2020 - 4:07:34 AM

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Paul Sauleau, Pierre Pollak, Paul Krack, Denis Pélisson, Alain Vighetto, et al.. Contraversive eye deviation during stimulation of the subthalamic region.. Movement Disorders, Wiley, 2007, 22 (12), pp.1810-3. ⟨10.1002/mds.21650⟩. ⟨inserm-00383804⟩

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