Journal Article

Is Serum Cystatin C a Better Marker than Serum Creatinine for Monitoring Renal Function in Pediatric Intensive Care Unit?

Nazik Asilioglu, Yonca Acıkgoz, Muhammet Sukru Paksu, Murat Gunaydin and Ozan Ozkaya

in Journal of Tropical Pediatrics

Volume 58, issue 6, pages 429-434
Published in print December 2012 | ISSN: 0142-6338
Published online April 2012 | e-ISSN: 1465-3664 | DOI: http://dx.doi.org/10.1093/tropej/fms011
Is Serum Cystatin C a Better Marker than Serum Creatinine for Monitoring Renal Function in Pediatric Intensive Care Unit?

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In critically ill patients, mild to moderate reductions in glomerular filtration rate are not instantly followed by parallel changes in serum creatinine (SCr). The aim of this study was to identify a value of serum cystatin C (cys-C) level as a marker for monitoring renal function in critically ill pediatric patients. Creatinine clearance was used to estimate glomeruler filtration rate (eGFR). The correlation between the inverse of serum cys-C and eGFR (r = −0.70, p < 0.0001) was better than the correlation between the inverse of SCr and eGFR (r = −0.27, p = 0.008). Serum cys-C was found to be superior to SCr to predict renal impairment (area under the curve for cys-C, 0.932 and for SCr, 0.658). It can be concluded that cys-C is superior to SCr for the detection of renal impairment in critically ill children.

Keywords: cystatin C; renal impairment; critically ill children

Journal Article.  2517 words.  Illustrated.

Subjects: Paediatrics

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