CAT and ST Elevation Myocardial Infarction: Because ACS is known to be accompanied by increased oxidative stress and decreased antioxidant levels, the aim of the current study was to elucidate the oxidative, and antioxidant status of ST elevated myocardial infarction (STEMI) and non-STEMI (NSTEMI) patients by evaluating IMA, MDA, SOD and catalase levels.