Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Creatinine Trends and Patterns in Neonates Undergoing Whole Body Hypothermia: A Systematic Review

Version 1 : Received: 30 April 2021 / Approved: 5 May 2021 / Online: 5 May 2021 (13:27:42 CEST)

A peer-reviewed article of this Preprint also exists.

Borloo, N.; Smits, A.; Thewissen, L.; Annaert, P.; Allegaert, K. Creatinine Trends and Patterns in Neonates Undergoing Whole Body Hypothermia: A Systematic Review. Children 2021, 8, 475. Borloo, N.; Smits, A.; Thewissen, L.; Annaert, P.; Allegaert, K. Creatinine Trends and Patterns in Neonates Undergoing Whole Body Hypothermia: A Systematic Review. Children 2021, 8, 475.

Journal reference: Children 2021, 8, 475
DOI: 10.3390/children8060475

Abstract

Many neonates undergoing whole body hypothermia (WBH) following moderate to severe perinatal asphyxia suffer from renal impairment. While recent data suggest a WBH-related reno-protection, the differences in serum creatinine (Scr) patterns to reference patterns were not yet reported. We therefore aimed to document Scr trends and patterns in asphyxiated neonates undergoing WBH, and compared these to centiles reference Scr dataset of non-asphyia neonates. Using a systematic review strategy, reports on Scr trends (mean ± SD, or median and range) were collected (day 1-7) in WBH cohorts, and compared to centiles of an earlier reported reference cohort of non-asphyxia cases. Based on 13 papers on asphyxia+WBH cases, a pattern on postnatal Scr trends in asphyxia+WBH cases was constructed. Compared to the reference cohort, mean or median Scr values at birth (>90th centile) and the first two days of WBH (>75th centile) remained clinical relevantly higher in asphyxia+WBH cases, with a subsequent decline to reach at best high or high normal creatinine values (all >50th centile, but mainly >75th centile) from day 4 onwards. Such patterns are valuable to anticipate average changes in renal clearance capacity relevant for pharmacotherapy, but do not yet cover the relevant inter-patient variability observed in WBH cases.

Keywords

creatinine; cystatin C; asphyxia; whole body hypothermia; acute kidney injury; renal clearance; kidney function.

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