Document Detail

Stroke due to atrial fibrillation in a population-based stroke registry (Ludwigshafen Stroke Study) CHADS(2) , CHA(2) DS(2) -VASc score, underuse of oral anticoagulation, and implications for preventive measures.
MedLine Citation:
PMID:  22788384     Owner:  NLM     Status:  Publisher    
BACKGROUND AND PURPOSE: Atrial fibrillation (AF) is amongst the most important etiologies of ischaemic stroke. In a population-based stroke registry, we tested the hypothesis of low adherence to current guidelines as a main cause of high rates of AF-associated stroke. METHODS: Within the Ludwigshafen Stroke Study (LuSSt), a prospective ongoing population-based stroke register, we analyzed all patients with a first-ever ischaemic stroke (FEIS) owing to AF in 2006 and 2007. We determined whether AF was diagnosed before stroke and assessed pre-stroke CHADS(2) and CHA(2) DS(2) -VASc scores. RESULTS: In total, 187 of 626 patients with FEIS suffered from cardioembolic stroke owing to AF, which was newly diagnosed in 57 (31%) patients. Retrospective pre-stroke risk stratification according to CHADS(2) score indicated low/intermediate risk in 34 patients (18%) and high risk (CHADS(2)  ≥ 2) in 153 patients (82%). Application of CHA(2) DS(2) -VASc score reduced number of patients at low/intermediate risk (CHA(2) DS(2) -VASc score 0-1) to five patients (2.7%). In patients with a CHADS(2) score ≥ 2 and known AF (n = 106) before stroke, 38 (36%) were on treatment with vitamin K antagonists on admission whilst only in 16 patients (15%) treatment was in therapeutic range. CONCLUSIONS: Our study strongly supports the hypothesis that underuse of oral anticoagulants in high-risk patients importantly contributes to AF-associated stroke. CHA(2) DS(2) -VASc score appears to be a more valuable risk stratification tool than CHADS(2) score. Preventive measures should focus on optimizing pre-stroke detection of AF and better implementation of present AF-guidelines with respect to anticoagulation therapy.
F Palm; T Kleemann; M Dos Santos; C Urbanek; F Buggle; A Safer; M G Hennerici; H Becher; R Zahn; A J Grau
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-7-12
Journal Detail:
Title:  European journal of neurology : the official journal of the European Federation of Neurological Societies     Volume:  -     ISSN:  1468-1331     ISO Abbreviation:  -     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-7-13     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9506311     Medline TA:  Eur J Neurol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2012 The Author(s) European Journal of Neurology © 2012 EFNS.
Department of Neurology, Klinikum Ludwigshafen, Ludwigshafen, Germany.
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