Assessment of cognitive impairment and its correlation with vitamin D levels patients on maintenance hemodialysis.

Cognitive impairment (CI) is common in patients with chronic kidney disease, and its prevalence increases in patients on hemodialysis (HD). Different factors were identified to be the cause of cognitive dysfunction, of which Vitamin D, which is known to have pleiotropic effects, has been implicated for the neurocognitive decline of functions. We assessed the prevalence of cognitive dysfunction in patients on HD in our center and also studied the deficiency of Vitamin D on CI.