Due to their favorable pharmacologic properties and beneficial clinical effects, low
molecular weight heparins (LMWHs) have become the standard of care in the prevention
and treatment of venous thromboembolism and have also been extensively studied in
the treatment of acute coronary syndromes. Pentasaccharide is the first of a new class
of synthetic antithrombotics and has been shown to be superior to LMWH in preventing
deep vein thrombosis. Hirudin is the most potent direct thrombin inhibitor and has
provided superior antithrombotic efficacy when compared with LMWH. In acute coronary
syndromes, however, the antithrombotic activity of hirudin has been compromised by
a significant increase in major hemorrhage.
Heparin - low molecular weight heparins - pentasaccharide - hirudin - venous thromboembolism
- acute coronary syndromes