• Am. J. Med. · Dec 2023

    Observational Study

    Outcomes of Oral Anticoagulation in Atrial Fibrillation Patients with or without Comorbid Vascular Disease: Insights from the GARFIELD-AF Registry.

    • VerheugtFreek W AFWAOnze Lieve Vrouwe Gasthuis (OLVG), Amsterdam, Netherlands. Electronic address: f.w.a.verheugt@olvg.nl., FoxKeith A AKAACentre for Cardiovascular Science, University of Edinburgh, UK., Saverio Virdone, Giuseppe Ambrosio, Bernard J Gersh, Sylvia Haas, Karen S Pieper, Gloria Kayani, A John Camm, Alexandr Parkhomenko, Frank Misselwitz, Hany Ragy, Ten CateHugoHMaastricht University Medical Center (MUMC+) and Cardiovascular Research Institute (CARIM), Maastricht University, Netherlands; Center for Thrombosis and Hemostasis (CTH), Gutenberg University Medical Center, Mainz, Germany., Matyas Keltai, Ajay K Kakkar, and GARFIELD-AF investigators.
    • Onze Lieve Vrouwe Gasthuis (OLVG), Amsterdam, Netherlands. Electronic address: f.w.a.verheugt@olvg.nl.
    • Am. J. Med. 2023 Dec 1; 136 (12): 11871195.e151187-1195.e15.

    BackgroundMany patients with atrial fibrillation suffer from comorbid vascular disease. The comparative efficacy and safety of different types of oral anticoagulation (OAC) in this patient group have not been widely studied.MethodsAdults with newly diagnosed atrial fibrillation were recruited into the prospective observational registry, GARFIELD-AF, and followed for 24 months. Associations of vascular disease with clinical outcomes were analyzed using adjusted hazard ratios (HR) obtained via Cox proportional-hazard modeling. Outcomes of OAC vs no OAC, and of non-vitamin K antagonist OAC (NOAC) vs vitamin K antagonist (VKA) treatment, were compared by overlap propensity-weighted Cox proportional-hazard models.ResultsOf 51,574 atrial fibrillation patients, 25.9% had vascular disease. Among eligible atrial fibrillation patients, those with vascular disease received OAC less frequently than those without (63% vs 73%). Over 2-year follow-up, patients with vascular disease showed a higher risk of all-cause mortality (HR 1.30; 95% confidence interval [CI], 1.16-1.47) and cardiovascular mortality (HR 1.59; 95% CI, 1.28-1.97). OAC was associated with a significant decrease in all-cause mortality and non-hemorrhagic stroke, and increased risk of major bleeding in non-vascular disease. In vascular disease, similar but non-significant trends existed for stroke and major bleeding. A significantly lower risk of all-cause mortality (HR 0.74; 95% CI, 0.61-0.90) and major bleeding (HR 0.45; 95% CI, 0.29-0.70) was observed in vascular disease patients treated with NOACs, compared with VKAs.ConclusionsAtrial fibrillation patients with a history of vascular disease have worse long-term outcomes than those without. The association of NOACs vs VKA with clinical outcomes was more evident in atrial fibrillation patients with vascular disease.Copyright © 2023 The Authors. Published by Elsevier Inc. All rights reserved.

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