Vitamin K Antagonists- Study Shows Vitamin K Antagonist Therapy More Effective Than Rivaroxaban for Rheumatic Heart Disease Patients with Atrial Fibrillation According to a new study published in the New England Journal of Medicine, vitamin K antagonist therapy may be more beneficial than rivaroxaban for patients suffering from rheumatic heart disease-associated atrial fibrillation. The study included 4,565 patients with atrial fibrillation and echocardiographically documented rheumatic … Continue reading Vitamin K Antagonist Beat Rivaroxaban in Atrial Fibrillation Study