Treatment of Symptomatic Venous Thromboembolism: Improving Outcomes

Harry R. Büller

doi:10.1055/s-2002-32315

Seminars in Thrombosis and Hemostasis, Table of Contents

Semin Thromb Hemost 2002; 28(s2): 041-048
DOI: 10.1055/s-2002-32315

Treatment of Symptomatic Venous Thromboembolism: Improving Outcomes

Harry R. Büller

Department of Vascular Medicine, Academic Medical Center at the University of Amsterdam, Amsterdam, The Netherlands

Abstract

ABSTRACT

Antithrombotic therapy with unfractionated heparin (UFH) and warfarin for the treatment of deep venous thrombosis (DVT) and pulmonary embolism (PE) became widely accepted in the early 1960s. Subsequent clinical trials have focused on the importance of early intravenous UFH in the treatment of venous thromboembolic events, the method of heparin administration, the importance of rapid anticoagulation to prevent recurrent venous thromboembolism (VTE), and the optimal duration of UFH administration. Low-molecular-weight heparin (LMWH) represents a significant advance over UFH therapy for VTE. Developed in the late 1980s, LMWH has become an excellent alternative to UFH because it offers superior efficacy and safety, improved pharmacokinetics, longer half-life, and once- or twice-daily subcutaneous administration without the need for laboratory monitoring. Fondaparinux is the first of a new class of antithrombotic agents that targets factor Xa. Based on studies of the heparin binding site of antithrombin, this novel pentasaccharide has superior pharmacokinetics and bioavailability when compared with LMWH and can be administered once daily. Studies in patients undergoing major orthopedic surgery and in those with proximal DVT indicate that the efficacy and safety of fondaparinux may represent an improvement over those of LMWH.

KEYWORDS

Factor Xa inhibitor - fondaparinux - heparin - low-molecular-weight heparin - venous thromboembolism

Full Text

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