Document Detail

Thalamic ataxia.
MedLine Citation:
PMID:  1512609     Owner:  NLM     Status:  MEDLINE    
Seventeen patients with hemiataxia as a manifestation of thalamic infarction were studied. Hemiataxia had the main clinical characteristics of a "cerebellar type" of ataxia, though it never occurred in isolation, being associated with ipsilateral sensory disturbance (hemiataxia-hypaesthesia) in 7 patients, with ipsilateral sensory disturbance and hemiparesis (hypaesthetic ataxic hemiparesis) in 8 patients, and with hemiparesis (ataxic hemiparesis) in 2 patients. Recovery was good, and in all patients the sensory and motor disturbances improved or cleared before the hemiataxia. All patients had an infarct involving the lateral part of the thalamus (thalamogeniculate territory in 16, tuberothalamic territory in 1), also affecting the posterior limb of the internal capsule (PLIC) in 7 patients. Hemiataxia seemed linked to involvement of the caudal part of the ventral lateral nucleus of the thalamus or the immediately adjacent medial part of the PLIC. These structures are near the corticospinal pathways and the ventral posterior nucleus of the thalamus, explaining why hemiataxia is associated with hemiparesis or hypaesthesia in this type of infarct.
T P Melo; J Bogousslavsky; T Moulin; J Nader; F Regli
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Review    
Journal Detail:
Title:  Journal of neurology     Volume:  239     ISSN:  0340-5354     ISO Abbreviation:  J. Neurol.     Publication Date:  1992 Jul 
Date Detail:
Created Date:  1992-09-28     Completed Date:  1992-09-28     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0423161     Medline TA:  J Neurol     Country:  GERMANY    
Other Details:
Languages:  eng     Pagination:  331-7     Citation Subset:  IM    
Department of Neurology, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland.
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MeSH Terms
Aged, 80 and over
Ataxia / etiology*
Cerebral Infarction / complications*,  diagnosis
Hemiplegia / etiology
Magnetic Resonance Imaging
Middle Aged
Risk Factors
Thalamic Diseases / complications*,  diagnosis
Tomography, X-Ray Computed

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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