Document Detail

Antithrombotic Therapy Use at Discharge and 1 Year in Patients With Atrial Fibrillation and Acute Stroke: Results From the AVAIL Registry.
MedLine Citation:
PMID:  21903948     Owner:  NLM     Status:  Publisher    
BACKGROUND AND PURPOSE: Current American Heart Association/American Stroke Association guidelines identify warfarin use as a class IA indication in patients with atrial fibrillation (AF) and ischemic stroke (IS) or transient ischemic attack (TIA). However, few studies have examined factors associated with long-term antithrombotic therapy use in IS/TIA patients with AF. METHODS: We utilized the Get With The Guidelines-Stroke national quality improvement registry and the Adherence eValuation After Ischemic Stroke Longitudinal (AVAIL) Registry to examine patterns of antithrombotic use at discharge and at 12 months in IS/TIA patients with AF. A multivariate logistic regression model was developed to identify predictors of warfarin use in this patient population at 12 months. RESULTS: Of the 2460 IS/TIA patients, 291 (11.8%) had AF, of which 5.5% of patients were discharged on aspirin alone, 49.1% on warfarin alone, 1.4% on clopidogrel alone, 34.7% on warfarin plus aspirin, 2.1% on aspirin plus clopidogrel, and 1.0% on aspirin plus clopidogrel plus warfarin. Paradoxically, there was a decrease in the rate of warfarin use in patients with a CHADS(2) score >3. The only factor associated with warfarin use at 12-month follow-up was male gender (adjusted odds ratio, 2.27; confidence interval, 1.22-4.35; P=0.01). CONCLUSIONS: Overall, the use of warfarin therapy is high at discharge in IS/TIA patients with AF; however, there was a decrease in the rate of warfarin use in patients with a CHADS(2) score >3. Compared to women, men were more likely to be on warfarin at 1 year after the index stroke event. Therefore, opportunities exist to improve antithrombotic use in all IS/TIA patients with AF.
Renato D Lopes; Bimal R Shah; Daiwai M Olson; Xin Zhao; Wenqin Pan; Cheryl D Bushnell; Eric D Peterson
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-9-8
Journal Detail:
Title:  Stroke; a journal of cerebral circulation     Volume:  -     ISSN:  1524-4628     ISO Abbreviation:  -     Publication Date:  2011 Sep 
Date Detail:
Created Date:  2011-9-9     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0235266     Medline TA:  Stroke     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
From the Duke Clinical Research Institute, Duke University Medical Center, Durham, NC; Department of Neurology, Wake Forest University Health Sciences Center, Winston-Salem, NC.
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