Prediction of Chronic Renal Disease After Acute Kidney Injury in the Intensive Care Unit

Inclusion Criteria: * Patient ⩾ 18 years; * Patient suffering an acute kidney injury (defined by AKIN score ⩾1) during ICU stay; * Patient discharged alive from the ICU; * Patient's signed consent obtained; * Patient covered by a healthcare insurance. Exclusion Criteria: * Pregnant or breastfeeding woman; * SOFA score \< 1 (except for kidney assessment) at time of ICU admission; * End-stage of renal failure or dialysis treatment or renal transplantation prior to ICU admission; * Patient treated with dialysis at ICU discharge; * Immunosuppressive treatment prior to ICU admission; * Patient under legal incapacity (tutor or guardian protection); * Being unable to follow-up of the study; * Life expectancy expected shorter than 90 days; * Refusal to participate in the study; * Patient's main address is outside of Il de France region for the centers in this region; * Patient \< 18 years; * Patient not affiliated to national social security scheme; * Patient deprived of liberty by judicial measure.