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Updated: Feb 3, 2026

Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
Published on: February 26, 2013
Current and emerging pharmacotherapy for ischemic stroke prevention in patients with atrial fibrillation
Orsolya Székely1, Kazuo Miyazawa1, Gregory Yoke Hong Lip1,2,3
1a Institute of Cardiovascular Sciences , University of Birmingham , Birmingham , UK.
Insights
Atrial fibrillation (AF) stroke prevention relies on anticoagulation. While novel oral anticoagulants (NOACs) offer advantages over vitamin K antagonists (VKAs), limitations necessitate developing new anticoagulant strategies.
Area of Science:
- Cardiology
- Pharmacology
- Hematology
Background:
- Atrial fibrillation (AF) increases stroke risk via thromboembolism.
- Anticoagulation is crucial for preventing thromboembolic events in AF patients.
- Traditional anticoagulants include heparin, fondaparinux, and vitamin K antagonists (VKAs).
Purpose of the Study:
- To review current and emerging pharmacotherapies for ischemic stroke prevention in AF.
- To examine novel targets within the coagulation cascade for anticoagulant drug development.
- To assess investigational anticoagulant drugs in preclinical and clinical studies.
Main Methods:
- Literature review of current and emerging anticoagulant therapies.
- Analysis of data on novel therapeutic targets in the coagulation cascade.
- Evaluation of preclinical and clinical studies on investigational anticoagulant drugs.
Main Results:
- Non-vitamin K antagonist oral anticoagulants (NOACs) represent a significant advancement over VKAs.
- NOACs offer improved efficacy, safety, and convenience compared to VKAs.
- Limitations of NOACs include use in severe renal impairment, mechanical heart valves, high bleeding risks, and lack of standard monitoring/reversal agents.
Conclusions:
- Despite NOAC advancements, limitations persist, driving research into new anticoagulant strategies.
- Development of novel anticoagulants targeting the hemostatic pathway is ongoing.
- Future research aims to overcome current limitations and improve stroke prevention in AF.
Abstract:
Introduction: Atrial fibrillation (AF) is associated with high morbidity and mortality rates due to thromboembolic complications, and anticoagulation is central to the management of this common arrhythmia to prevent acute thromboembolic events. The traditional anticoagulants: heparin, fondaparinux, and vitamin K antagonists (VKA, e.g. warfarin, acenocoumarol or phenprocoumin) have long served as pharmacotherapy for ischemic stroke prophylaxis. Areas covered: In this review article, the authors provide an overview on current and emerging pharmacotherapy for ischemic stroke prevention. Furthermore, they review the data from novel therapeutic targets in the coagulation cascade, and investigational anticoagulant drugs currently assessed in preclinical and clinical studies. Expert opinion: The introduction of nonvitamin K antagonist oral anticoagulants (NOACs) was an important milestone, as these drugs show relative efficacy, safety, and convenience compared to the VKAs. Nevertheless, their clinical use still has some limitations with, for example, patients with severe renal impairment and those with mechanical heart valves, high bleeding risks, lack of standard laboratory monitoring and (some) reversal agents. To overcome some of these limitations, various attempts are now underway to discover new strategies and targets via the hemostatic pathway in order to develop new coagulation inhibiting drugs.
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