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The WATCHMAN Left Atrial Appendage Closure Device for Atrial Fibrillation
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[Stroke in atrial fibrillation patients already on oral anticoagulant: What more can be done?]

Emmanuel Touzé1, Doina Ciocanu1

  • 1Université Caen Basse Normandie, CHU Côte-de-Nacre, service de neurologie et unité neurovasculaire, 14000 Caen, France.

Presse Medicale (Paris, France : 1983)
|June 1, 2014
PubMed

Insights

Despite oral anticoagulants, 1-3% of atrial fibrillation patients experience ischemic stroke annually. Management strategies exist but lack specific study evaluation for these challenging cases.

Area of Science:

  • Cardiology
  • Neurology
  • Pharmacology

Context:

  • Atrial fibrillation (AF) patients on oral anticoagulants (OACs) still face ischemic stroke risks.
  • Annual incidence of ischemic stroke in OAC-treated AF patients is 1-3%.
  • Potential causes include OAC efficacy fluctuations, non-cardioembolic stroke, or inadequate anticoagulation.

Purpose:

  • To review therapeutic options for ischemic stroke in AF patients despite OAC therapy.
  • To highlight the lack of specific clinical evaluations for these management strategies.

Summary:

  • Ischemic strokes in OAC-treated AF patients can stem from various mechanisms.
  • Current therapeutic approaches include enhanced patient education, switching anticoagulants, adding aspirin, or percutaneous left-appendage closure.
  • These interventions require further rigorous study to establish optimal use.

Impact:

  • Informs clinical decision-making for managing complex stroke cases in AF.
  • Identifies critical gaps in evidence for stroke prevention strategies in atrial fibrillation.
  • Guides future research priorities for improving anticoagulation efficacy and stroke risk reduction.

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