Document Detail

New anticoagulants for the prevention of stroke in atrial fibrillation.
MedLine Citation:
PMID:  21883447     Owner:  NLM     Status:  Publisher    
Oral anticoagulation in atrial fibrillation is obligatory to lower the risk of spontaneous cerebrovascular and systemic thromboembolism. For this purpose, vitamin K antagonists (coumarins) have been recommended as the most effective drugs for a long time. However, problems with the practical use of these agents, e.g. the need for frequent and regular coagulation controls, the inter-individual differences in maintaining a stable therapeutic range, as well as drug or food interactions, have led to the search and investigation of alternative compounds characterized by a more simple use (e.g. without regular controls of therapeutic levels), high efficacy, as well as low risk of bleeding. The direct thrombin inhibitor dabigatran and the direct factor Xa inhibitors rivaroxaban and apixaban have recently been investigated to prove whether they fulfill the high expectancy of an ideal anticoagulant with respect to a more favorable efficacy/safety profile and without the need for coagulation controls, thereby improving quality of life. Dabigatran (RE-LY) achieved an impressive reduction in stroke and non-central nervous system (non-CNS) embolism (110 mg: 1.5%/year; 150 mg: 1.1%/year) in contrast to warfarin (1.7%/year; P = 0.34 and P < 0.001) with a favorable action on bleeding hazards. The results of rivaroxaban which were obtained in the ROCKET AF study (on treatment analysis: stroke and non-CNS embolism: 1.7%/year vs. 2.15%/year with warfarin; P = 0.015; primary safety endpoint major and minor bleeding: 14.91 vs. 14.52%; P = 0.442) point in the same direction. And finally, compared to aspirin, apixaban reduced the combined primary efficacy endpoint by 52% with comparable rates of bleeding (AVERROES). This review gives a summary of the current knowledge about these agents and their potential future importance.
Thomas Höchtl; Kurt Huber
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-8-29
Journal Detail:
Title:  Fundamental & clinical pharmacology     Volume:  -     ISSN:  1472-8206     ISO Abbreviation:  -     Publication Date:  2011 Aug 
Date Detail:
Created Date:  2011-9-2     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8710411     Medline TA:  Fundam Clin Pharmacol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2011 The Authors Fundamental and Clinical Pharmacology © 2011 Société Française de Pharmacologie et de Thérapeutique.
3rd Medical Department with Cardiology and Emergency Medicine, Wilhelminen Hospital, Montleartstraße 37, A-1160 Vienna, Austria.
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