Background: Cognitive impairment is common in chronic hemodialysis patients. Approximately 18,8% of 154 hemodialysis patients with cognitive impairment. Lenght of hemodialysis treatment was a factor that· can lead to cognitive impairment. The longer patients had nndergoing hemodialysis, the greater possibility ofside effects such as hypotension, hemolysis and cognitive impairment. This study a…