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Updated: May 29, 2026

The WATCHMAN Left Atrial Appendage Closure Device for Atrial Fibrillation
Published on: February 28, 2012
[Thromboembolic prophylaxis 2011: is warfarin on the wane?]
Giuseppe Di Pasquale1, Letizia Riva
1U.O.di Cardiologia, Ospedale Maggiore, Bologna. giuseppe.dipasquale@ausl.bo.it
Novel oral anticoagulants offer a more predictable and convenient alternative to warfarin for preventing stroke in atrial fibrillation patients. These new drugs show comparable efficacy, potentially overcoming undertreatment issues associated with traditional anticoagulation.
Area of Science:
- Cardiology
- Pharmacology
- Internal Medicine
Background:
- Warfarin has been a long-standing treatment for cardioembolism prophylaxis in atrial fibrillation.
- Limitations of warfarin include poor anticoagulation quality and the need for regular monitoring.
- Many atrial fibrillation patients remain undertreated due to oral anticoagulation challenges.
Purpose of the Study:
- To review the potential of novel oral anticoagulants (NOACs) to replace warfarin in atrial fibrillation management.
- To discuss the clinical utility and limitations of NOACs in practice.
- To highlight the potential of NOACs to address anticoagulant undertreatment in atrial fibrillation.
Main Methods:
- Review of current data from phase III clinical trials of NOACs.
- Comparison of NOACs (dabigatran, rivaroxaban, apixaban) with warfarin efficacy and safety.
- Analysis of NOACs' predictability, convenience, and monitoring requirements.
Main Results:
- NOACs demonstrate at least non-inferior efficacy to warfarin in preventing stroke in atrial fibrillation.
- NOACs, such as dabigatran and factor Xa inhibitors, offer greater predictability and convenience.
- The absence of routine laboratory monitoring and dose adjustments is a key advantage of NOACs.
Conclusions:
- Novel oral anticoagulants show significant promise to replace warfarin for atrial fibrillation patients.
- NOACs may help overcome the issue of anticoagulant undertreatment in atrial fibrillation.
- Further consideration of NOACs' place in therapy and clinical limitations is warranted.
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