IMR Press / RCM / Volume 26 / Issue 6 / DOI: 10.31083/RCM39233
Open Access Review
Anticoagulation for Stroke Prevention in Patients with Atrial Fibrillation: A Review of the Literature and Current Guidelines
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Affiliation
1 Cardiology, ECU Health, Tarboro, NC 27886, USA
2 Anesthesiogy and Intensive Medicine/Critical Care, Marienhospital, 70199 Stuttgart, Germany
3 Department of Medicine, University at Buffalo – Catholic Health System, Buffalo, NY 14214, USA
4 Hematology-Oncology, George Washington University, Washington, D.C. 20037, USA
*Correspondence: vrinda.vyas@ecuhealth.org; drvrindavyas@gmail.com (Vrinda Vyas)
Rev. Cardiovasc. Med. 2025, 26(6), 39233; https://doi.org/10.31083/RCM39233
Submitted: 24 March 2025 | Revised: 24 April 2025 | Accepted: 30 April 2025 | Published: 26 June 2025
Copyright: © 2025 The Author(s). Published by IMR Press.
This is an open access article under the CC BY 4.0 license.
Abstract

Atrial fibrillation (AF) is the most common arrhythmia worldwide, characterized by uncoordinated atrial activation leading to a loss of effective atrial contraction and increased risk for atrial thrombi formation, promoting an increased risk of cardioembolic strokes and mortality, and associated increased healthcare expenditure. Therefore, stroke prevention represents a key focus in managing patients with atrial fibrillation, and strategies to achieve this aim have drastically evolved over the years. Previously, aspirin and warfarin were the cornerstone of stroke prophylaxis. However, direct oral anticoagulants have emerged and are now recognized as a safer and more effective alternative for non-valvular AF. Meanwhile, newer non-pharmacological methods to prevent AF related strokes, such as left atrial appendage occlusion devices, have been approved to ameliorate the need for lifelong anticoagulation in patients with elevated bleeding risks. This review outlines the current recommendations and provides an overview of the literature on stroke prevention in patients with atrial fibrillation, particularly focusing on using direct-acting oral anticoagulants. Comparisons between these agents and special considerations for use are also reviewed.

Keywords
atrial fibrillation
anticoagulation
hemorrhage
stroke
Highlights
  • Stroke prevention is a key focus in the management of patients with atrial fibrillation and strategies for the same have drastically evolved over the years.
  • Direct oral anticoagulants (DOACs) have replaced warfarin as the preferred agents for non-valvular atrial fibrillation due to their safety, efficacy, and ease of use. 
  • Assessment of stroke risk with scores such as CHA2DS2-VASc, help guide anticoagulation decisions and strategies.
  • Bleeding Risk Scores help assess bleeding potential and influence treatment, especially in those patients at high risk for bleeding.
  • Multiple trials (e.g., RE-LY, ARISTOTLE, ROCKET-AF) have demonstrated DOACs reduce stroke risk, while also reducing intracranial hemorrhage, and mortality compared to warfarin, particularly in non-valvular AF.
Figures
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