Aim of investigation: Acute renal failure (ARF), requiring dialysis, is associated with higher in-hospital mortality. Age is one of the known risk factors for the development of ARF. As the ageing population is increasing, the peri-operative cares face with a large population of elderly patients requiring dialysis following cardiac surgery. The aim of our study was to evaluate the influence of age on and the risk factors for in-hospital mortality. Methods: Eighty-two patients with ARF following cardiac surgery and requiring dialysis were included. Two groups of patients were studied: the younger population (
