Abstract
Early detection of kidney injury in neonates is very important for appropriate management and prevention of serious complications; however, commonly used detectors as creatinine and blood urea nitrogen (BUN) do not directly reflect early renal cell injury. Serum cystatin-C (Cys-C) and beta 2-microglobulin (Β2M), serum creatinine and BUN were assessed in 20 neonates who developed renal impairment after admission to the neonatal intensive care unit and 10 healthy neonates. The means of serum Cys-C, Β2M and creatinine on Day 1 of admission in the cases and control groups were 2.15 ± 0.52 vs 0.45 ± 0.19, 7.18 ± 2.36 vs 1.92 ± 0.41 and 0.81 ± 0.07 vs 0.53 ± 0.20, respectively, with P-value <0.05 in only Cys-C and Β2M. We conclude that serum Cys-C and Β2M are suggested as simple and accurate markers for the early diagnosis of kidney injury in neonates than serum creatinine.
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