Novel oral Anticoagulants in Non-Valvular Atrial Fibrillation

Author(s): Rose M.F.L. da Silva

Journal Name: Cardiovascular & Hematological Agents in Medicinal Chemistry
Formerly Current Medicinal Chemistry - Cardiovascular & Hematological Agents

Volume 12 , Issue 1 , 2014

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Atrial fibrillation is the most frequent arrhythmia in clinical practice, reaching 2% of the people in the world and is associated with systemic embolism. Thus, the use of anticoagulants is indicated if CHA2DS2-VASc score ≥2 or in patients with previous transient ischemic attack or stroke. For decades, warfarin, a vitamin K antagonist, was the only choice for chronic oral anticoagulation. Recently, novel oral anticoagulants (NOACs) have been introduced, offering similar (or better) effectiveness, safety, and convenience to the vitamin K antagonists. Dabigatran was the first NOAC approved and is a direct thrombin inhibitor. Rivaroxaban and apixaban are factor Xa inhibitors. They display rapid onset of action, more predictable of pharmacological profile, less interactions with other drugs, lack of significant effects in the diet, and less risk of intracranial hemorrhage than warfarin. Despite that dose adjustment is necessary for patients with chronic kidney disease or according to body weight, these new drugs do not require regular monitoring. There are recommendations for the start and follow-up therapy with NOACs, planning for cardioversion, ablation and surgical interventions and the management of bleeding. This article is a review of the major studies of the NOACs. The clinical use of these drugs in patients with non-valvular atrial fibrillation is presented.

Keywords: Anticoagulants agents, apixaban, atrial fibrillation, dabigatran, rivaroxaban, systemic embolism.

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Article Details

Year: 2014
Published on: 01 December, 2014
Page: [3 - 8]
Pages: 6
DOI: 10.2174/187152571201141201091848

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