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Updated: Feb 12, 2026

Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
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Beyond Stroke Prevention in Atrial Fibrillation: Exploring Further Unmet Needs with Rivaroxaban.

C M Gibson1, G J Hankey2, T Nafee1

  • 1Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, United States.

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Non-vitamin K antagonist oral anticoagulants are standard for stroke prevention in atrial fibrillation (AF). Three trials investigate rivaroxaban for AF patients undergoing PCI, with embolic stroke of undetermined source, and after transcatheter aortic valve replacement.

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Area of Science:

  • Cardiology
  • Neurology
  • Pharmacology

Background:

  • The global burden of atrial fibrillation (AF) is increasing, leading to a fivefold higher risk of ischemic stroke.
  • Non-vitamin K antagonist oral anticoagulants (NOACs) are the standard for stroke prevention in non-valvular AF.
  • Optimal anticoagulation strategies for specific high-risk AF patient groups remain an area of active research.

Purpose of the Study:

  • To provide an update on ongoing and completed randomized controlled trials evaluating rivaroxaban for stroke prevention in specific AF patient populations.
  • To address unmet needs in stroke prevention for AF patients undergoing percutaneous coronary intervention (PCI), those with embolic stroke of undetermined source (ESUS), and post-transcatheter aortic valve replacement (TAVR).

Main Methods:

  • Review of three key randomized controlled trials: PIONEER AF-PCI, NAVIGATE ESUS, and GALILEO.
  • These trials investigate rivaroxaban, a direct oral factor Xa inhibitor, against standard or alternative antithrombotic strategies.
  • Focus on comparing rivaroxaban-based strategies with vitamin K antagonists, aspirin, or dual-antiplatelet therapy in distinct clinical scenarios.

Main Results:

  • Data from the PIONEER AF-PCI trial informs optimal anticoagulation post-PCI in AF patients.
  • The NAVIGATE ESUS trial assesses rivaroxaban's efficacy in preventing embolism in patients with ESUS.
  • The GALILEO trial compares rivaroxaban-based strategies with antiplatelet therapy after TAVR.

Conclusions:

  • Findings from these trials are expected to guide optimal anticoagulant selection for diverse AF patient groups.
  • The studies aim to provide evidence-based recommendations for stroke risk reduction in challenging clinical scenarios.
  • Rivaroxaban is being evaluated as a key therapeutic option in these ongoing stroke prevention research areas.