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Review
. 2017 Mar 6:13:81-90.
doi: 10.2147/VHRM.S89213. eCollection 2017.

Novel stroke risk reduction in atrial fibrillation: left atrial appendage occlusion with a focus on the Watchman closure device

Affiliations
Review

Novel stroke risk reduction in atrial fibrillation: left atrial appendage occlusion with a focus on the Watchman closure device

Arash Alipour et al. Vasc Health Risk Manag. .

Abstract

Atrial fibrillation (AF) remains an important clinical problem with severe complications such as stroke, which especially harms those with risk factors as calculated by the CHADS2 or CHA2DS2-VASc. Until now, no therapy has proven 100% effective against AF. Since the left atrial appendage (LAA) is the most prominent nonvalvular AF-related thromboembolic source and (novel) oral anticoagulant [(N)OAC] carries the hazard of bleeding, LAA occlusion may be an alternative, especially in patients who are ineligible for (N)OAC therapy. In this review, we discuss several LAA occlusion techniques with a focus on the Watchman device since this device is the most thoroughly studied device of all.

Keywords: atrial fibrillation; ischemic stroke; left atrial appendage.

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Conflict of interest statement

Disclosure The authors report no conflicts of interest in this work.

Figures

Figure 1
Figure 1
Image of the positioning of the Watchman device in the left atrial appendage. Note: Different components and the relevant structures are noted. Abbreviation: PET, polyethylene terephthalate.
Figure 2
Figure 2
X-plane two-dimensional transesophageal echocardiographic images of the left atrium before (A) and 45 days after (B) successful occlusion of the left atrial appendage using the Watchman device.

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