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Updated: Mar 6, 2026

The WATCHMAN Left Atrial Appendage Closure Device for Atrial Fibrillation
Published on: February 28, 2012
[Possible Choice of New Oral Anticoagulants With Non-Valvular Atrial Fibrillation: a Review of Meta-Analyzes]
1Northwest Medical Research Center, 197341 2, Str. Akkuratova, St. Petersburg, Russia.
Abstract:
This review presents the results of a meta-analysis including data from all four studies of new oral anticoagulants for the prevention of stroke or systemic embolism in patients with non-valvular atrial fibrillation. It was found that all of the drugs had a favorable risk profile/efficiency, and provides a significant reduction in the incidence of stroke, intracranial hemorrhage and mortality. This increases the number of gastrointestinal bleeding. The relative efficacy and safety of new oral anticoagulants is consistent in patients with different clinical characteristics. These data provide a more complete picture of the new oral anticoagulants as a therapeutic method of reducing the risk of stroke in this patient population.
Insights
New oral anticoagulants significantly reduce stroke, intracranial hemorrhage, and mortality in non-valvular atrial fibrillation patients. While increasing gastrointestinal bleeding, these anticoagulants offer a favorable risk-benefit profile.
Area of Science:
- Cardiology
- Pharmacology
- Evidence-based Medicine
Context:
- Non-valvular atrial fibrillation (NVAF) poses a significant risk for stroke and systemic embolism.
- Current therapeutic strategies aim to mitigate these risks while balancing safety and efficacy.
- Newer oral anticoagulant (NOAC) agents represent a significant advancement in anticoagulation therapy.
Purpose:
- To conduct a meta-analysis evaluating the efficacy and safety of new oral anticoagulants (NOACs) in patients with non-valvular atrial fibrillation.
- To compare the risk profile and efficiency of NOACs against established anticoagulation therapies.
- To assess the consistency of NOAC efficacy and safety across diverse patient subgroups.
Summary:
- Meta-analysis of four studies on NOACs for stroke prevention in NVAF patients.
- NOACs demonstrated significant reductions in stroke, intracranial hemorrhage, and mortality.
- A notable increase in gastrointestinal bleeding events was observed with NOAC use.
- Efficacy and safety profiles of NOACs were consistent across various clinical characteristics.
Impact:
- NOACs provide a favorable risk-benefit profile for stroke prevention in NVAF.
- These findings support the expanded use of NOACs as a primary therapeutic option.
- Further research may focus on mitigating gastrointestinal bleeding risks associated with NOACs.
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