Document Detail

Assessing segmental excitability after acute rostral lesions: II. The blink reflex.
MedLine Citation:
PMID:  570677     Owner:  NLM     Status:  MEDLINE    
Blink reflexes were obtained in a total of 34 different patients with cerebrovascular lesions; 28 were studied within 1 week of the ictus and 11 were eventually restudied. In 13, the latency of the first component of the reflex on the clinically involved side was significantly delayed (greater than 1.5 msec). This was an acute phenomenon that usually resolved within the first week after the ictus, correlated clinically with the severity of the hemiparesis and decrease in tone, and may be seen with lesions restricted to the pyramidal tract. The second component was absent in 17 of 34 patients during the early phase after stroke, and was associated with a decreased corneal response. These changes, which reflect decreased excitability of certain brainstem structures (rather than a lesion within those structures), are therefore potentially important for documenting CNS pathophysiology.
M A Fisher; B T Shahani; R R Young
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Neurology     Volume:  29     ISSN:  0028-3878     ISO Abbreviation:  Neurology     Publication Date:  1979 Jan 
Date Detail:
Created Date:  1979-05-23     Completed Date:  1979-05-23     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0401060     Medline TA:  Neurology     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  45-50     Citation Subset:  AIM; IM    
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MeSH Terms
Cerebrovascular Disorders / physiopathology*
Dominance, Cerebral / physiology
Eyelids / physiopathology*
Pons* / physiopathology
Reaction Time
Reflex / physiology*

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