Change in Free Radical and Antioxidant Enzyme Levels in the Patients Undergoing Open Heart Surgery with Cardiopulmonary Bypass

Table 2

Statistical comparison of oxidative and antioxidative parameters in preoperative, early postoperative, and postoperative periods.

Parameters	Preoperative period	Early postoperative period	Postoperative period
MDA nmol/ml
GPx U/g Hb
GSH µmol/g Hb
CAT k/g Hb
SOD U/g Hb

The letters a and b show statistically different groups.
MDA: malondialdehyde; GPx: glutathione peroxidase; GSH: reduced glutathione; CAT: catalase; SOD: superoxide dismutase.