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Intermittent ataxias 

Intermittent ataxias
Chapter:
Intermittent ataxias
Author(s):

Ivan Donaldson

, C. David Marsden

, Susanne A. Schneider

, and Kailash P. Bhatia

DOI:
10.1093/med/9780192619112.003.1185
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date: 01 March 2021

Intermittent ataxias are episodic movement disorders characterized by a predominance of cerebellar dysfunction. Thus, incoordination and ataxia are the main features. Unsteadiness and clumsiness, however, may also be due to abnormalities of proprioceptive, pyramidal, or extrapyramidal function. In some reports patients are too young or description is inadequate to be sure that unsteadiness results from cerebellar dysfunction. In most cases, however, this seems likely because signs of damage to other systems are lacking and cerebellar features are present in other patients with the disease.

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