Patients with non-ST-segment elevation myocardial infarction (NSTEMI) are a heterogeneous group with respect to the risk of having a major adverse cardiac event (MACE). Elevation of blood glucose is a common metabolic disorder among patients with acute myocardial infarction (AMI) and is associated with adverse prognosis. Glucagon-like peptide-1 (GLP-1) is an incretin hormone that regulates plasma glucose. GLP-1 analogues have significant cardiovascular protective effects in patients with AMI. GLP-1 may have antioxidant and anti-inflammatory properties, and protect endothelial function. Studies in conscious, chronically instrumented dogs demonstrated that GLP-1 infusion increases insulin sensitivity and myocardial glucose uptake in postischemic contractile dysfunction and dilated cardiomyopathy. Liraglutide, a GLP-1 analogue, was reported to reduce cardiac rupture and infarct size and improve cardiac output in normal and diabetic mice. Continuous infusion of GLP-1 (1.5 pmol/kg/min) has been shown to improve functional recovery in patients with AMI complicated by decreased left ventricular function GLP-1 could protect against ischemia-reperfusion injury and improve cardiac function in patients with acute ST-segment elevation myocardial infarction. However, the effects of GLP-1 on NSTEMI patients remain unclear. The aim of this study was to evaluate the effects of liraglutide on left ventricular function in patients with NSTEMI.
The investigators planned to evaluate the effects of liraglutide on left ventricular function in patients with non-ST-segment elevation myocardial infarction (NSTEMI).