Clinical QuestionIs treatment with factor Xa inhibitors associated with better efficacy and safety compared with the vitamin K antagonist warfarin for preventing strokes or other systemic embolic events in patients with atrial fibrillation? Bottom LineCompared with warfarin, factor Xa inhibitors are associated with a lower risk of stroke and other systemic embolic events in patients with atrial fibrillation. Factor Xa inhibitors were associated with lower rates of intracranial hemorrhage and mortality compared with warfarin. Factor Xa inhibitors were associated with a reduction in major bleeding events, but there was heterogeneity between the included studies, and the reduction was not statistically significant in a prespecified sensitivity analysis.
JAMA – American Medical Association
Published: Mar 19, 2014
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