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Published on: February 28, 2012
Critical Issues and Recent Advances in Anticoagulant Therapy: A Review
Angelika Batta1, Bhupinder S Kalra1, Raj Khirasaria2
1Department of Pharmacology, Maulana Azad Medical College, New Delhi, India.
Insights
New oral anticoagulants (NOACs) offer an alternative to traditional therapies for preventing stroke and thromboembolism in aging populations. This review details their benefits and risks compared to vitamin K antagonists (VKAs).
Area of Science:
- Cardiology
- Hematology
- Pharmacology
Background:
- Aging populations face increased incidence of atrial fibrillation and venous thromboembolism, necessitating effective anticoagulation.
- Traditional anticoagulants (heparin, LMWH, warfarin) have limitations including bleeding risk, administration route, and monitoring requirements.
- Managing thromboembolic diseases is a significant clinical challenge due to high prevalence and severe consequences.
Purpose of the Study:
- To provide an overview of coagulation mechanisms and current anticoagulation therapies.
- To update on the utility and recent advancements of new oral anticoagulants (NOACs).
- To compare NOACs with vitamin K antagonists (VKAs) regarding advantages, disadvantages, precautions, and contraindications.
Main Methods:
- Review of existing literature on coagulation and anticoagulation.
- Analysis of recent studies and clinical trials on NOACs and VKAs.
- Comparative assessment of pharmacological profiles and clinical outcomes.
Main Results:
- NOACs present distinct profiles compared to VKAs, offering potential advantages in specific patient populations.
- Understanding the nomenclature, benefits, drawbacks, and contraindications of NOACs is crucial for clinical application.
- Recent clinical trials provide evidence for the efficacy and safety of NOACs in preventing stroke and thromboembolism.
Conclusions:
- NOACs represent a significant advancement in anticoagulation therapy for atrial fibrillation and venous thromboembolism.
- Careful consideration of patient-specific factors is necessary when selecting between NOACs and VKAs.
- Further research continues to refine the role of NOACs in managing thromboembolic disorders.
Abstract:
As the population is aging, clinicians are coming across more patients with atrial fibrillation and venous thromboembolism requiring anticoagulation to prevent stroke and systemic embolisms. Due to a high prevalence and unfavorable consequences, managing thromboembolic diseases have become areas of clinical concern. Traditional anticoagulants like heparin, low molecular weight heparin and warfarin have been used for the prevention and treatment of venous and arterial thromboses. But, issues of bleeding, parenteral route of administration, or the need for frequent monitoring due to variability in response respectively limit their use. The article gives an overview of coagulation along with existing therapy available for anticoagulation and to present an update on utility and recent advances of new oral anticoagulants (NOACs) beginning from their nomenclature, advantages, disadvantages, precautions and contraindications compared with those of vitamin K antagonists (VKAs) based on a large number of recent studies and clinical trials.
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