Measuring cystatin C to determine renal function in neonates

Kandasamy, Yogavijayan, Smith, Roger, and Wright, Ian M.R. (2013) Measuring cystatin C to determine renal function in neonates. Pediatric Critical Care Medicine, 14 (3). pp. 318-322.

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Abstract

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.

Item ID: 36467
Item Type: Article (Research - C1)
ISSN: 1947-3893
Date Deposited: 15 Dec 2014 04:44
FoR Codes: 11 MEDICAL AND HEALTH SCIENCES > 1114 Paediatrics and Reproductive Medicine > 111499 Paediatrics and Reproductive Medicine not elsewhere classified @ 100%
SEO Codes: 92 HEALTH > 9201 Clinical Health (Organs, Diseases and Abnormal Conditions) > 920199 Clinical Health (Organs, Diseases and Abnormal Conditions) not elsewhere classified @ 100%
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