Abstract: Low molecular weight heparin(LMWH)is a kind of anticoagulant used in both the prevention of clot formation in the blood vessels(thrombosis)and the treatment of conditions caused by clot formation or embolization.They are agents formulated from chemical or enzymatic depolymerization of unfractionated heparin.In the past decade,LMWH has been extensively evaluated in many clinical settings.The applications of LMWH in recent years are reviewed.

Key words: low molecular weight heparin, phlebothrombosis, acute coronary syndrome, interventional therapy, review