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Apixaban vs Aspirin According to CHA2DS2-VASc Score in Subclinical Atrial Fibrillation

2024; Elsevier BV; Volume: 84; Issue: 4 Linguagem: Inglês

10.1016/j.jacc.2024.05.002

1558-3597

Renato D. Lópes, Christopher B. Granger, Daniel Wojdyla, William F. McIntyre, Marco Alings, Thenmozhi Mani, Chinthanie Ramasundarahettige, Léna Rivard, Dan Atar, David H. Birnie, Giuseppe Boriani, Guy Amit, Peter Leong‐Sit, Claus Rinne, Gabor Z. Duray, Michael R. Gold, Stefan H. Hohnloser, Valentina Kutyifa, Juan Benezet‐Mazuecos, Jens Cosedis Nielsen, Christian Sticherling, Alexander P. Benz, Cecilia Linde, J Kautzner, Philippe Mabo, Georges H. Mairesse, Stuart J. Connolly, Jeff S. Healey,

Antiplatelet Therapy and Cardiovascular Diseases

ARTESiA demonstrated that apixaban, compared with aspirin, significantly reduced stroke and systemic embolism (SE) but increased major bleeding in patients with subclinical atrial fibrillation (SCAF). To help inform decision making, we evaluated the efficacy and safety of apixaban according to baseline CHA2DS2-VASc score. We performed a subgroup analysis according to baseline CHA2DS2-VASc score and assessed both the relative and absolute differences in stroke/SE and major bleeding. Baseline CHA2DS2-VASc scores were 4 in 1085 (27.0%). For patients with CHA2DS2-VASc >4, the rate of stroke was 0.98%/year with apixaban and 2.25%/year with aspirin; compared with aspirin, apixaban prevented 1.28 (0.43 to 2.12) strokes/SE per 100 patient-years and caused 0.68 (-0.23 to 1.57) major bleeds. For CHA2DS2-VASc 4 and a stroke/SE risk of 2.2% per year. For these patients, the benefits of treatment with apixaban in preventing stroke/SE are greater than the risks. The opposite is true for patients with CHA2DS2-VASc score <4. A substantial intermediate group (CHA2DS2-VASc =4) exists in which patient preferences will inform treatment decisions.