This study assess the vital status, renal function and renal recovery of patients admitted to intensive care unit and requiring renal replacement therapy for acute kidney failure. Patient follow up is up to 3 years after ICU admission when possible.

Up to 50% of critically ill patients develop acute kidney injury and up to 10% require renal replacement therapy in the intensive care unit. This study aims to identify factors associated with mortality and to evaluate renal recovery of patients who had acute kidney failure requiring renal replacement therapy in intensive care unit at 1 and 3 years post intensive care unit admission.

Inclusion Criteria:

• Adults admitted to the intensive care
• Acute kidney failure requiring renal replacement therapy

Exclusion Criteria:

• Patients suffering end stage renal failure requiring chronic renal replacement therapy
• Patients under 18 years

Adults hospitalised in intensive care and who developped acute renal failure requiring renal replacement therapy