The authors analyze the immediate results of 8 simultaneous operations, 4 of these under conditions of artificial circulation, in patients with renal cell carcinoma concomitant with heart diseases. The immediate results were satisfactory, with good functional parameters. Due to simultaneous operations the incidence of intra- and postoperative cardiovascular complications is reduced, the progress of the tumor process between different stages of treatment is arrested, early radical interventions for tumor removal becomes possible, and the hospitalization period is shorter in comparison with staged operations
