Description of the Cystatin C as an Early Nephrotoxic Bio-marker in Pediatric Oncology

Urinary and blood cystatin C are sampled in patient with nephrotoxic risks before the treatment beginning, after the first course of chemotherapy, in the middle and at the end of the treatment. A follow up assessment is also required at 2 and 5 years. The cystatin C measurements are compared to traditional nephrology markers. Their sampling requires additional blood and urinary collection but involve minimal risks for patient.