Document Detail

Dabigatran and Factor Xa Inhibitors for Stroke Prevention in Patients with Nonvalvular Atrial Fibrillation.
MedLine Citation:
PMID:  22440950     Owner:  NLM     Status:  Publisher    
Stroke is a major health problem worldwide, and is often fatal or associated with poor long-term outcomes. Atrial fibrillation (AF) is responsible for up to 20% of all strokes; and the risk of stroke in patients with AF increases with age. Although warfarin is well established for the prevention of stroke in patients with AF, it has some limitations, particularly a narrow therapeutic window, variable/unpredictable pharmacokinetic/pharmacodynamic properties, the restriction of vitamin K intake, and the need for regular coagulation monitoring. Therefore, warfarin is underused for stroke prevention in patients with AF. Several anticoagulants that inhibit thrombin or factor Xa have been developed. Dabigatran is a direct thrombin (factor IIa) inhibitor that overcomes many of the limitations associated with warfarin. The recent Randomized Evaluation of Long Term Anticoagulant Therapy study showed the noninferiority of 110 mg and 150 mg dabigatran twice daily, and the superiority of 150 mg dabigatran twice daily versus adjusted-dose warfarin in the prevention of stroke or systemic embolism in patients with nonvalvular AF. In addition, the rate of intracranial hemorrhage was much lower with both doses of dabigatran than with warfarin. Dabigatran was recently approved in Japan for the prevention of ischemic stroke and systemic embolism in patients with nonvalvular AF. Therefore, in this review, we discuss the properties of dabigatran and its clinical efficacy, safety, and positioning in the prevention of stroke. We also discuss precautions for the use of dabigatran and future perspectives with a view to reducing the risk of stroke with new oral anticoagulants, including factor Xa inhibitors in AF patients.
Shinichiro Uchiyama; Setsuro Ibayashi; Masayasu Matsumoto; Takehiko Nagao; Ken Nagata; Jyoji Nakagawara; Norio Tanahashi; Kortaro Tanaka; Kazunori Toyoda; Masahiro Yasaka
Publication Detail:
Journal Detail:
Title:  Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association     Volume:  21     ISSN:  1532-8511     ISO Abbreviation:  -     Publication Date:  2012 Apr 
Date Detail:
Created Date:  2012-3-23     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9111633     Medline TA:  J Stroke Cerebrovasc Dis     Country:  -    
Other Details:
Languages:  ENG     Pagination:  165-173     Citation Subset:  -    
Copyright Information:
Copyright © 2012 National Stroke Association. Published by Elsevier Inc. All rights reserved.
Department of Neurology, Tokyo Women's Medical University School of Medicine, Tokyo, Japan.
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