Old and new oral anticoagulants for secondary stroke prevention in atrial fibrillation

Submitted: 3 January 2014
Accepted: 28 August 2014
Published: 15 December 2015
Abstract Views: 1881
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Vitamin K antagonists, such as warfarin, used in oral anticoagulation therapy currently represent the standard drugs for the primary and secondary prevention of stroke in non-valvular atrial fibrillation (AF), with a relative risk reduction close to 70%. Newer oral anticoagulants, such as direct thrombin inhibitors (i.e., dabigatran) and direct factor Xa inhibitors (i.e., apixaban and rivaroxaban) have been recently compared with warfarin in large randomized trials for stroke prevention in AF. The new oral anticoagulants showed, compared with warfarin, no statistically significant difference in the rate of stroke or systemic embolism in secondary prevention (patients with previous transient ischemic attack or stroke) subgroups. With regard to safety, the risk of intracranial bleeding was reduced with new anticoagulants compared with warfarin. Indirect treatment comparisons of clinical trials on secondary prevention cohorts showed no significant difference in efficacy among apixaban, rivaroxaban, and dabigatran; but dabigatran 110 mg was associated with less intracranial bleedings than rivaroxaban.

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Sacquegna, T., Zaniboni, A., Rubboli, A., Procaccianti, G., Crisci, M., Maioli, F., Arnone, G., & Di Pasquale, G. (2015). Old and new oral anticoagulants for secondary stroke prevention in atrial fibrillation. Italian Journal of Medicine, 9(4), 314–322. https://doi.org/10.4081/itjm.2015.468

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