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The WATCHMAN Left Atrial Appendage Closure Device for Atrial Fibrillation
Published on: February 28, 2012
Prevention of thromboembolism in patients with atrial fibrillation
1Department of Medicine, Yale University School of Medicine, New Haven, Connecticut, USA.
Insights
Transesophageal echocardiography offers new insights into atrial physiology and anticoagulation strategies for atrial fibrillation. Its role as a precardioversion screen is promising but needs more clinical trial data.
Area of Science:
- Cardiology
- Cardiac Electrophysiology
Background:
- Atrial fibrillation (AF) management requires understanding atrial physiology and effective anticoagulation.
- Current anticoagulation strategies are informed by major multicenter trials.
Purpose of the Study:
- To present new insights into atrial physiology using transesophageal echocardiography (TEE).
- To review anticoagulation approaches for acute and chronic AF based on clinical trial data.
- To evaluate the potential of TEE as a precardioversion screening tool.
Main Methods:
- Observations from transesophageal echocardiography.
- Review of major multicenter clinical trials on anticoagulation in AF.
- Analysis of risk stratification guidelines for AF therapy.
Main Results:
- TEE provides novel insights into atrial physiology.
- Major trials offer risk stratification guidelines for AF anticoagulation.
- TEE shows promise as a precardioversion screen, but further validation is needed.
Conclusions:
- Transesophageal echocardiography enhances understanding of atrial physiology.
- Clinical trial data guide anticoagulation therapy in AF patients.
- Further clinical trials are necessary to define the role of TEE in precardioversion assessment.
Abstract:
New insights into atrial physiology based on observations using transesophageal echocardiography are presented. The approach to anticoagulation of patients with both acute and chronic atrial fibrillation is reviewed within the context of the results of the major multicenter trials. These have provided some useful risk stratification guidelines for therapy. Presently available data suggest that the role of transesophageal echocardiography as a precardioversion screen is promising but requires further definition through clinical trials.
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