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Measuring Cystatin C to Determine Renal Function in Neonates.
MedLine Citation:
PMID:  23392363     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVES:: The incidence of acute kidney injury in neonates is high and associated with up to a 50% mortality rate. The purpose of this review was to determine the feasibility of using serum cystatin C measurements to assist clinicians in making early and accurate diagnoses of acute kidney injury in neonates. DATA SOURCE:: We searched for the following seven key words within the PubMed database and the Cochrane Database of Systematic Reviews: cystatin C, neonates, newborn, preterm, premature, kidney failure, and kidney injury. STUDY SELECTION:: The selected studies included neonates within their study populations and were published in English. We reviewed literature published between January 1990 and May 2012. DATA EXTRACTION:: Ten studies had conducted serum cystatin C measurements in neonates. DATA SYNTHESIS:: The cystatin C level in neonates is not influenced by the maternal level and is highest at birth. In most studies, cystatin C levels on day 1 of life ranged between 1 and 2 mg/L, gradually declined during the first year and then remained relatively stable thereafter. Cystatin C levels did not differ between male and female infants, and no significant gestational age-dependent differences were found. Cystatin C levels were increased in cases of sepsis, acute kidney injury, and congenital renal abnormalities. CONCLUSIONS:: Cystatin C has all of the theoretical properties needed to be an ideal marker of renal function. It can be used to determine baseline renal function on day 1 and is increasingly being used to determine renal function in sick neonates. In the majority of studies, the day 1 cystatin C level ranged between 1 and 2 mg/L, which gradually declined in the first year of life. However, the number of available studies evaluating cystatin C in sick neonates is currently limited, and there are also no studies linking cystatin C levels in sick babies with short-term and long-term outcomes.
Authors:
Yogavijayan Kandasamy; Roger Smith; Ian M R Wright
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-2-7
Journal Detail:
Title:  Pediatric critical care medicine : a journal of the Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies     Volume:  -     ISSN:  1529-7535     ISO Abbreviation:  Pediatr Crit Care Med     Publication Date:  2013 Feb 
Date Detail:
Created Date:  2013-2-8     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100954653     Medline TA:  Pediatr Crit Care Med     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
1 Department of Neonatology, The Townsville Hospital, Queensland, Australia. 2 Mothers and Babies Research Centre, Hunter Medical Research Institute, John Hunter Hospital, Newcastle, New South Wales, Australia.
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