Recomendaciones de expertos en la mejora de la prevención efectiva del ictus isquémico en la fibrilación auricular no valvular: papel del rivaroxabán

Abstract

Atrial fibrillation markedly increases the risk of ischemic stroke. Although vitamin K antagonists (VKAs) reduce this risk, they have limited efficacy and several disadvantages, which has meant that over the years a substantial proportion of patients with atrial fibrillation have remained without anticoagulation. In contrast, clinical trials, studies in routine clinical practice and, more recently, population-based studies have all demonstrated that direct oral anticoagulants (DOACs) are more effective and safer than VKAs and also have a greater net clinical benefit. In fact, in regions where the DOAC prescription rate is high, the incidence of ischemic stroke has decreased, as have the overall costs associated with atrial fibrillation. Although the prescription of DOACs in Spain has increased in recent years, the country has one of the lowest prescription rates in Europe, which may be associated with a higher incidence of ischemic stroke. Despite clinical guidelines all recommending that DOACs should be used in preference to VKAs in patients with nonvalvular atrial fibrillation, more prescriptions are issued for VKAs in Spain, largely due to restrictions imposed by national statements on appropriate medicine use (including the need for approval), but also because of therapeutic inertia. Immediate action should be taken to correct this situation and to improve patients‘ prognoses.