The objective of our research was to evaluate whether in chronically dialyzed patients cognitive disorders develop, whether these disorders are connected with dialyzation treatment, and its length and the patients’ age, whether in the possible psychopathology also the social background and mental state of the patient participate. Using standardized tests of the Mini Mental State Examination. Clock Test and Social Adaptation Questionnaire, the authors examined 62 chronically dialyzed patients from the dialyzation department of the First Medical Clinic, Faculty Hospital Plzeň. No connection between the duration of chronic dialysis and the development of cognitive functions was confirmed.

        Key words: cognitive disorders, dialysis and psychopathology, psychiatric assessment scale, quali- ty of life