... cystatin C concentration as a marker of acute renal dysfunction in critically ill patientsPatricia Villa1, Manuel Jiménez1, Maria-Cruz Soriano1, Jesus Manzanares1 and Pilar Casasnovas21Intensive ... increase as GFRdecreases. All of these factors explain why serum creatinineconcentration may not be a good parameter for accuratedetermination of GFR, especially at lower rates [1].Cystatin ... M, Marcovska R, Nashkov A: Serum cystatin C in renal trans-plant patients. Clin Chim Acta 2001, 310:53-56.30. Tian S, Kusano E, Ohara T, Tabei K, Itoh Y, Kawai T, Asano Y: Cystatin C measurement...