EXTENDED THERAPY OF VENOUS THROMBOSIS BY ORAL ANTICOAGULANTS: FOCUS AT SAFETY

Abstract

Study objective: to evaluate safety of prolonged therapy of venous thrombosis by rivarixaban compared to the standard scheme of therapy by low-molecular heparins (LMH) with subsequent transfer to warfarin administration. Materials and methods. Prospective observation comparative study was conducted that included 243 patients with verified venous thrombosis. The control group included 96 patients to whom therapy by LMH/warfarin was prescribed. The major group included 147 patients to whom rivaroxaban was prescribed. Results. The frequency of major hemorrhages reached 0% in the major group versus 2% in the control group (р = 0.32). The total frequency of hemorrhagic complications development amounted to 10.2% in the major group and 12.5% in the control one (p = 0.73). 86.7% of patients of the major group and only 50% of the control group (р = 0.049) continued the anticoagulant therapy after development of hemorrhagic complications. Conclusions: the results obtained by us confirm higher safety of rovaroxaban use compared to warfarin within prolonged therapy of venous thrombosis. These data correspond to the results of the previously published studies EINSTEIN and XALIA.

Keywords

• venous thrombosis
• anticoagulant therapy
• new oral anticoagulants
• rivaroxaban