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J Clin Lab Anal. 2012 Jul;26(4):267-71. doi: 10.1002/jcla.21516.

The clinical significance of serum cystatin C in critically ill newborns with normal serum creatinine.

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  • 1Department of Laboratory Medicine, School of Medicine, Kyung Hee University, 1 Hoegi-dong, Dongdaemun-gu, Seoul, Korea.

Abstract

BACKGROUND:

The aim of this study is to evaluate the clinical significance of cystatin C(CysC) in the newborns who show normal serum creatinine (Cr) and who are in an intensive care unit.

METHODS:

From July 2009 to May 2010, a total of 106 patients (53 male and 53 female newborns) in a neonatal intensive care unit at Kyung Hee Medical Center were enrolled in this study. When clinicians ordered CysC, it was tested using HiSens Cystatin-C LTIA(HBi, An-yang, Korea) on a Toshiba chemical analyzer (Toshiba, Nasushiobara, Japan).

RESULTS:

The range of serum Cr and CysCwas from 0.1 to 0.8 mg/dL and from 1.0 to 2.3 mg/L, respectively. CysCpresented the wider amplitude of the changes in acute renal failure.

CONCLUSION:

In this study, CysCwithout an increased Cr showed only a mild increase. However, CysCreflected more delicate changes in newborns than the serum Cr. This characteristic of CysCcould make it very appropriate for a pediatric population, especially for critically ill newborns.

© 2012 Wiley Periodicals, Inc.

[PubMed - indexed for MEDLINE]
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