Published: 9 April 2024
Author(s): William F. McIntyre, Jeffrey S. Healey, Renato D. Lopes
Issue: May 2024
Section: Commentary

Device-detected, subclinical atrial fibrillation (AF), previously known as atrial high-rate episodes, is detected in roughly one-third of older patients with a pacemaker, defibrillator, or implanted cardiac monitor [1]. Device-detected subclinical AF is associated with an increased risk of ischemic stroke; however, this risk is lower than in otherwise similar patients with overt clinical AF on 12-lead electrocardiogram [1,2]. Two large randomized trials have recently addressed the question of whether a direct oral anticoagulant is effective and safe in this population [3–5].


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