[Heart and kidneys].

During last fifty years several investigations were performed enabling detection and description of close relationships between kidneys and heart. It is dealing both with connections important for maintenance of homeostasis and with pathological disturbances. On the other hand there are no doubts that chronic kidney diseases, and especially their chronic failure, are connected with development of deep cardio-vascular changes. This interrelationship is becoming more clear when similiarities between factors causing progress of renal failure and development of cardio-vascular changes on the othe hand are concluded. So the main important issue is early prevention and after recognition of their existence early specific therapy.