Document Detail

Higher coated-platelet levels are associated with stroke recurrence following nonlacunar brain infarction.
MedLine Citation:
PMID:  23149559     Owner:  NLM     Status:  MEDLINE    
Coated-platelets are procoagulant platelets observed upon dual-agonist stimulation with collagen and thrombin. Coated-platelet levels are elevated in patients with nonlacunar (large-vessel) ischemic stroke and decreased in patients with spontaneous intracerebral hemorrhage as compared with controls. The purpose of this study was to investigate a possible relationship between coated-platelet levels and stroke recurrence in patients with nonlacunar ischemic stroke. We assayed coated-platelet levels in 190 consecutive patients with nonlacunar stroke who were followed for up to 12 months; 20 subjects experienced recurrent stroke. Subjects were categorized into tertiles of coated-platelet levels. The distributions of time-to-recurrent stroke were estimated for each tertile using cumulative incidence curves and compared statistically using a log-rank test. The cumulative incidence of recurrent stroke at 12 months differed among the coated-platelet tertiles: 2% for the first tertile (lowest coated-platelet levels), 18% for the second tertile, and 17% for the third tertile (overall log-rank test, P=0.019). These data suggest that higher levels of coated-platelets, measured shortly after a nonlacunar stroke, are associated with an increased incidence of stroke recurrence. This observation offers an additional tool for identifying patients at highest risk for stroke recurrence following a nonlacunar (large-vessel) infarct.
Calin I Prodan; Julie A Stoner; Linda D Cowan; George L Dale
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Publication Detail:
Type:  Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.     Date:  2012-11-14
Journal Detail:
Title:  Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism     Volume:  33     ISSN:  1559-7016     ISO Abbreviation:  J. Cereb. Blood Flow Metab.     Publication Date:  2013 Feb 
Date Detail:
Created Date:  2013-02-01     Completed Date:  2013-03-25     Revised Date:  2014-02-04    
Medline Journal Info:
Nlm Unique ID:  8112566     Medline TA:  J Cereb Blood Flow Metab     Country:  United States    
Other Details:
Languages:  eng     Pagination:  287-92     Citation Subset:  IM    
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MeSH Terms
Aged, 80 and over
Blood Platelets / metabolism*,  pathology
Brain Infarction / blood*,  complications,  epidemiology
Collagen / metabolism
Follow-Up Studies
Middle Aged
Platelet Function Tests
Stroke / blood*,  epidemiology,  etiology
Thrombin / metabolism
Reg. No./Substance:
9007-34-5/Collagen; EC

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

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