Infections in a renal unit.

Five hundred and thirty-three patients in the Oxford renal unit were reviewed to determine the incidence of infection in one calendar year. There were 310 patients who received dialysis, 53 with acute renal failure and 211 with chronic renal disease. Renal transplant patients were not included in the study. Apart from infections related to dialysis access, patients on maintenance haemodialysis or continuous ambulatory peritoneal dialysis developed few serious infections unless they had another disease causing suppression of immune function. A total of 97 urinary tract infections were seen; in patients with chronic renal disease not receiving dialysis the incidence of urinary tract infection was significantly associated with increasing uraemia, with diabetes, and with treatment with azathioprine or cyclophosphamide. In patients with acute renal failure, Gram-negative septicaemia and fungal infections were important causes of morbidity and mortality, but cardiovascular disease caused 42 per cent of the deaths unlike results from other series where sepsis has been by far the commonest cause of death.