Document Detail


Lingual discoordination and dysphagia following acute stroke: analyses of lesion localization.
MedLine Citation:
PMID:  10028038     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The mechanism and neural substrates that mediate lingual coordination during swallowing have not been well characterized. Although lingual discoordination during swallowing has been difficult to quantify, it has been defined as the random disorganization of anterior-posterior tongue movements evident in bolus propulsion. In a sample of consecutive acute stroke patients (n = 59), videofluoroscopic evaluation showed a 19% incidence of lingual discoordination during swallowing. Lingual discoordination during swallowing was not commonly associated with buccofacial apraxia, apraxia of speech, nor limb apraxia. Hemisphere and anterior-posterior localization did not predict occurrence of lingual discoordination. Lingual discoordination during swallowing occurred commonly in patients with subcortical lesions with the periventricular white matter (PVWM), the most common site of involvement. PVWM lesions may disconnect anterior and posterior cortical regions that are critical to oral control and coordination in swallowing, thereby producing lingual discoordination during swallowing. These data also suggest that the neural mechanisms that mediate lingual coordination may at least in part be independent of the neural systems that mediate buccofacial, limb, and speech praxis functions.
Authors:
S K Daniels; K Brailey; A L Foundas
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Dysphagia     Volume:  14     ISSN:  0179-051X     ISO Abbreviation:  Dysphagia     Publication Date:  1999  
Date Detail:
Created Date:  1999-07-16     Completed Date:  1999-07-16     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8610856     Medline TA:  Dysphagia     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  85-92     Citation Subset:  D; IM    
Affiliation:
Audiology/Speech Pathology Service, Veterans Affairs Medical Center, New Orleans, Louisiana 70112-1262, USA.
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MeSH Terms
Descriptor/Qualifier:
Acute Disease
Aged
Aged, 80 and over
Brain / pathology,  radiography
Cerebrovascular Disorders / complications*,  diagnosis*
Deglutition Disorders / diagnosis,  etiology*,  physiopathology
Female
Functional Laterality
Humans
Magnetic Resonance Imaging
Male
Middle Aged
Severity of Illness Index
Tomography, X-Ray Computed
Tongue / physiopathology*

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


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