Abstract: Objective In this article we investigated the influences of different hemodialysis induction pattern on mental state and serum electrolytes in end-stage renal disease patients. We also aimed to define the relationship between mental state and serum electrolytes in these patients. Methods We analyzed 44 patients beginning to use hemodialysis for chronic renal failure in the period from 2013 to 2014. In these patients, Patients were treated with daily hemodialysis (DHD group, n=22) or conventional hemodialysis (CHD group, n= 22). Carbon dioxide combining power (CO2- CP), serum sodium, potassium, calcium and phosphorus were measured at admission day, and at seventh day after the treatment. Symptom checklist 90 (SCL-90) scores during the hemodialysis induction period were recorded. Results Scores of somzatization, obsession, interpersonal relation disturbance, depression, anxiety, horror and other items as well as the total score were lower in DHD group than in CHD group (t=2.528, P=0.015; t=2.570, P=0.014; t=2.057, P=0.046; t=2.391, P=0.021; t= 2.389, P=0.021; t=2.634, P=0.012; t=2.451, P=0.018; t=2.616, P=0.012, respectively). On admission, CO2- CP, serum sodium, potassium, calcium, and phosphorus had no differences between the two groups. At the seventh day after the treatment, serum potassium was lower in DHD group than in CHD group (t=2.086, P=0.047), and serum calcium was higher in DHD group than in CHD group (t=-2.218, P=0.036). Conclusions DHD, rather than CHD, could improve the mental state of the patients in the hemodialysis induction period. Maintenance of serum potassium and calcium within normal ranges may improve the mental state of the patients.

Key words: Daily hemodialysis, Hemodialysis, Mental Health