ArticleJournal of cardiovascular development and disease2026
Atrial Fibrillation in Cardiac Amyloidosis: A Multicenter Experience Comparing Novel Oral Anticoagulants and Warfarin.
Article in Journal of cardiovascular development and disease, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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7 authors.
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Abstract
backgroundAF in the setting of cardiac amyloidosis is associated with a high risk of TEs, irrespective of CHA2DS2-VASc score. While warfarin has been the traditional anticoagulant, DOACs offer a promising alternative, but their safety in this population remains underexplored. This study aimed to evaluate the prevalence of thromboembolic events (TEs), including stroke and transient ischemic attack (TIA), and major bleeding events in patients with cardiac amyloidosis (CA) and atrial fibrillation (AF) treated with either warfarin or direct oral anticoagulants (DOACs). Additionally, we aimed to explore whether DOACs are at least as effective as warfarin in protecting against TEs in this population.
methodsThis retrospective cohort study analyzed 422 patients with confirmed CA and AF from Mayo Clinic, with a median follow-up of 4.3 years. Data on anticoagulation therapy, baseline characteristics, and outcomes (TEs and bleeding) were collected. Statistical analyses included chi-square tests,
resultsAmong 422 patients, 21 experienced a TE. The annual event rate was 0.83% for warfarin and 0.67% for DOACs, with no significant difference (HR 0.66, CI 0.22-2.01,
conclusionsBoth warfarin and DOACs have similar, low risks of TEs in CA and AF patients. However, anticoagulation interruptions were associated with increased TE risk, emphasizing the challenges in managing anticoagulation in this population.
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