Functional correlates of pallidal stimulation for Parkinson's disease
Identifieur interne : 003226 ( Main/Exploration ); précédent : 003225; suivant : 003227Functional correlates of pallidal stimulation for Parkinson's disease
Auteurs : Masafumi Fukuda [États-Unis] ; Marc Mentis [États-Unis] ; Maria Felice Ghilardi [États-Unis] ; Vijay Dhawan [États-Unis] ; Angelo Antonini [États-Unis] ; John Hammerstad [États-Unis] ; Andres M. Lozano [Canada] ; Anthony Lang [Canada] ; Kelly Lyons [États-Unis] ; William Koller [États-Unis] ; Claude Ghez [États-Unis] ; David Eidelberg [États-Unis]Source :
- Annals of Neurology [ 0364-5134 ] ; 2001-02-01.
Descripteurs français
- Pascal (Inist)
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- topic : Homme.
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Abstract
We measured regional cerebral blood flow with H215O and positron emission tomography (PET) scanning at rest and during a motor task to study the mechanism of motor improvement induced by deep brain stimulation of the internal globus pallidus in Parkinson's disease. Six right‐handed patients with Parkinson's disease were scanned while performing a predictable paced sequence of reaching movements and while observing the same screen displays and tones. PET studies were performed ON and OFF stimulation in a medication‐free state. Internal globus pallidus deep brain stimulation improved off‐state United Parkinson's Disease Rating Scale motor ratings (37%, p < 0.002) and reduced timing errors (movement onset time, 55%, p < 0.01) as well as spatial errors (10%, p < 0.02). Concurrent regional cerebral blood flow recordings revealed a significant enhancement of motor activation responses in the left sensorimotor cortex (Brodmann area [BA] 4), bilaterally in the supplementary motor area (BA 6), and in the right anterior cingulate cortex (BA 24/32). Significant correlations were evident between the improvement in motor performance and the regional cerebral blood flow changes mediated by stimulation. With internal globus pallidus deep brain stimulation, improved movement initiation correlated with regional cerebral blood flow increases in the left sensorimotor cortex and ventrolateral thalamus and in the contralateral cerebellum. By contrast, improved spatial accuracy correlated with regional cerebral blood flow increases in both cerebellar hemispheres and in the left sensorimotor cortex. These results suggest that internal globus pallidus deep brain stimulation may selectively improve different aspects of motor performance. Multiple, overlapping neural pathways may be modulated by this intervention. Ann Neurol 2001:49:155–164
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DOI: 10.1002/1531-8249(20010201)49:2<155::AID-ANA35>3.0.CO;2-9
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Six right‐handed patients with Parkinson's disease were scanned while performing a predictable paced sequence of reaching movements and while observing the same screen displays and tones. PET studies were performed ON and OFF stimulation in a medication‐free state. Internal globus pallidus deep brain stimulation improved off‐state United Parkinson's Disease Rating Scale motor ratings (37%, p < 0.002) and reduced timing errors (movement onset time, 55%, p < 0.01) as well as spatial errors (10%, p < 0.02). Concurrent regional cerebral blood flow recordings revealed a significant enhancement of motor activation responses in the left sensorimotor cortex (Brodmann area [BA] 4), bilaterally in the supplementary motor area (BA 6), and in the right anterior cingulate cortex (BA 24/32). Significant correlations were evident between the improvement in motor performance and the regional cerebral blood flow changes mediated by stimulation. With internal globus pallidus deep brain stimulation, improved movement initiation correlated with regional cerebral blood flow increases in the left sensorimotor cortex and ventrolateral thalamus and in the contralateral cerebellum. By contrast, improved spatial accuracy correlated with regional cerebral blood flow increases in both cerebellar hemispheres and in the left sensorimotor cortex. These results suggest that internal globus pallidus deep brain stimulation may selectively improve different aspects of motor performance. Multiple, overlapping neural pathways may be modulated by this intervention. Ann Neurol 2001:49:155–164</div></front></TEI><affiliations><list><country><li>Canada</li><li>États-Unis</li></country><region><li>Floride</li><li>Oregon</li><li>État de New York</li></region></list><tree><country name="États-Unis"><region name="État de New York"><name sortKey="Fukuda, Masafumi" sort="Fukuda, Masafumi" uniqKey="Fukuda M" first="Masafumi" last="Fukuda">Masafumi Fukuda</name></region><name sortKey="Antonini, Angelo" sort="Antonini, Angelo" uniqKey="Antonini A" first="Angelo" last="Antonini">Angelo Antonini</name><name sortKey="Antonini, Angelo" sort="Antonini, Angelo" uniqKey="Antonini A" first="Angelo" last="Antonini">Angelo Antonini</name><name sortKey="Dhawan, Vijay" sort="Dhawan, Vijay" uniqKey="Dhawan V" first="Vijay" last="Dhawan">Vijay Dhawan</name><name sortKey="Dhawan, Vijay" sort="Dhawan, Vijay" uniqKey="Dhawan V" first="Vijay" last="Dhawan">Vijay Dhawan</name><name sortKey="Eidelberg, David" sort="Eidelberg, David" uniqKey="Eidelberg D" first="David" last="Eidelberg">David Eidelberg</name><name sortKey="Eidelberg, David" sort="Eidelberg, David" uniqKey="Eidelberg D" first="David" last="Eidelberg">David Eidelberg</name><name sortKey="Eidelberg, David" sort="Eidelberg, David" uniqKey="Eidelberg D" first="David" last="Eidelberg">David Eidelberg</name><name sortKey="Fukuda, Masafumi" sort="Fukuda, Masafumi" uniqKey="Fukuda M" first="Masafumi" last="Fukuda">Masafumi Fukuda</name><name sortKey="Ghez, Claude" sort="Ghez, Claude" uniqKey="Ghez C" first="Claude" last="Ghez">Claude Ghez</name><name sortKey="Ghilardi, Maria Felice" sort="Ghilardi, Maria Felice" uniqKey="Ghilardi M" first="Maria Felice" last="Ghilardi">Maria Felice Ghilardi</name><name sortKey="Hammerstad, John" sort="Hammerstad, John" uniqKey="Hammerstad J" first="John" last="Hammerstad">John Hammerstad</name><name sortKey="Koller, William" sort="Koller, William" uniqKey="Koller W" first="William" last="Koller">William Koller</name><name sortKey="Lyons, Kelly" sort="Lyons, Kelly" uniqKey="Lyons K" first="Kelly" last="Lyons">Kelly Lyons</name><name sortKey="Mentis, Marc" sort="Mentis, Marc" uniqKey="Mentis M" first="Marc" last="Mentis">Marc Mentis</name><name sortKey="Mentis, Marc" sort="Mentis, Marc" uniqKey="Mentis M" first="Marc" last="Mentis">Marc Mentis</name></country><country name="Canada"><noRegion><name sortKey="Lozano, Andres M" sort="Lozano, Andres M" uniqKey="Lozano A" first="Andres M." last="Lozano">Andres M. Lozano</name></noRegion><name sortKey="Lang, Anthony" sort="Lang, Anthony" uniqKey="Lang A" first="Anthony" last="Lang">Anthony Lang</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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