Journal
MOVEMENT DISORDERS
Volume 17, Issue 6, Pages 1367-1371Publisher
WILEY-LISS
DOI: 10.1002/mds.10286
Keywords
subthalamotomy; hemiballism; Parkinson's disease
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The occurrence of persistent hemiballism after subthalamotomy for Parkinson's disease (PD) has not been described as frequently as mild or transient dyskinesia. We report on 2 patients with advanced PD who developed hemiballism and/or dyskinesia after subthalamotomy. One patient with a small lesion confined to the subthalamic nucleus (STN) developed persistent hemiballism; the other with a larger lesion involving the STN and also the zona incerta presented with a transient dyskinesia in a single limb. We conclude that a precise STN lesion might bear a potential risk of persistent hemiballism. (C) 2002 Movement Disorder Society.
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