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

Vasc Health Risk Manag. 2017 Mar 6:13:81-90. doi: 10.2147/VHRM.S89213. eCollection 2017.

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.

Publication types

  • Review

MeSH terms

  • Atrial Appendage / physiopathology*
  • Atrial Fibrillation / complications
  • Atrial Fibrillation / physiopathology
  • Atrial Fibrillation / therapy*
  • Cardiac Catheterization / adverse effects
  • Cardiac Catheterization / instrumentation*
  • Equipment Design
  • Humans
  • Recurrence
  • Risk Factors
  • Stroke / etiology
  • Stroke / prevention & control*
  • Treatment Outcome