[ad_1] Rivaroxaban (Xarelto) appeared on par with warfarin for the prevention of atrial fibrillation (Afib) with a bioprosthetic mitral valve, the RIVER study showed. Mean time to death, major cardiovascular events (stroke, transient ischemic attack, valvular thrombosis, systemic unrelated central nervous system embolism, and hospitalization for heart failure) or major …
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