Comparison of enoxaparin and dalteparin with unfractionated heparin in the treatment of non-ST elevated acute coronary syndrome.

Background: The term non-ST elevated Acute Coronary Syndrome (ACS) encompasses unstable Angina (USA) and non-ST segment elevated Myocardial Infarction (NSTEMI), both of which may end up in death or a fatal/non-fatal Myocardial Infarction (MI). Unfractionated heparin (UFH) has been shown to reduce death and MI in patients with USA and NSTEMI. Of late, there has been a great interest in the role of low molecular weight heparins (LMWHs) in the two conditions and they have been found to be at least as effective as or even more effective than UFH.