Abstract:Objective To compare the effects of peritoneal dialysis (PD) and high-flux hemodialysis (HFHD) on oxidative stress and immune function in elderly patients with end-stage renal disease. Methods 140 cases of maintenance dialysis patients who received regular dialysis treatment in the blood purification center of Department of Nephrology in our hospital from January 2016 to June 2018 were selected as subjects. According to different dialysis methods, patients were divided into PD group and HFHD group, each with 70 cases. PD group was treated by peritoneal dialysis and HFHD group by high-flux hemodialysis. Oxidative stress, cellular immune function and complications before and after dialysis were observed and compared. Results Compared with those before treatment, the levels of SOD and GSH-Px in PD group were significantly decreased, whereas the level of MAD was significantly increased (P < 0.05). However, in HFHD group, the levels of SOD and GSH-Px were elevated, while the level of MAD was reduced after the treatment (P < 0.05). After dialysis treatment, the count of CD+4, CD+3, CD+4/CD+8 T lymphocytes in the two groups were higher than that before dialysis treatment, and that in HFHD group was higher than that in PD group (P < 0.05). There was no significant difference in the incidence of cardiovascular accident,cerebrovascular accident, infection and malnutrition between the two groups (P > 0.05). Conclusions Compared with PD, HFHD can effectively reduce the level of oxidative stress and improve the immune function of elderly patients with end-stage renal disease.