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Mov Disord. 2005 Aug;20(8):1047-51.

Classification conundrums in paroxysmal dyskinesias: a new subtype or variations on classic themes?

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  • 1Department of Neurology, Columbia University Medical Center, New York, New York 10032, USA.


Paroxysmal movement disorders are a group of heterogeneous entities that have been categorized based on their most salient features. The four classic categories of paroxysmal dyskinesias are kinesigenic, nonkinesigenic, hypnogenic, and exercise-induced. The phenotypic variability of these disorders, coupled with new insights into their possible etiologies, has made the task of classification increasingly problematic. We describe 4 cases that do not fit easily into the current classification scheme, compare them with four others recently described in the literature, and raise the question as to whether they constitute a new subtype.

Copyright 2005 Movement Disorder Society

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