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. 2024 Apr;39(4):1271-1277.
doi: 10.1007/s00467-023-06214-3. Epub 2023 Nov 10.

Acute kidney injury in infants with hypoxic-ischemic encephalopathy

Marwa M Elgendy  1 , Josef Cortez  2 , Firas Saker  3 , Ceyda Acun  3 , Raed Bou Matar  4 , Mohamed A Mohamed  3 , Hany Aly  3
Affiliations

Acute kidney injury in infants with hypoxic-ischemic encephalopathy

Marwa M Elgendy et al. Pediatr Nephrol. 2024 Apr.

Abstract

Background: This study aimed to investigate the prevalence of acute kidney injury (AKI) in infants with varying degrees of hypoxic-ischemic encephalopathy (HIE) and its associated outcomes, including mortality and length of stay (LOS).

Methods: The study used the National Inpatient Sample (NIS) dataset from 2010 to 2018. Regression analysis was used to control confounding variables.

Results: Of 31,220,784 infants included in the study, 30,130 (0.1%) had HIE. The prevalence of AKI was significantly higher in infants with HIE (9.0%) compared to those without (0.04%), with an adjusted odds ratio (aOR) of 77.6 (CI:70.1-85.7, p < 0.001), with the highest prevalence of AKI in infants with severe HIE (19.7%), aOR:130 (CI: 107-159), p < 0.001). Infants with AKI had a higher mortality rate compared to those without AKI in those diagnosed with any degree of HIE (28.9% vs. 8.8%), aOR 3.5 (CI: 3.2-3.9, p < 0.001), particularly among those with severe HIE, aOR:1.4 (1.2-1.6, p < 0.001).

Conclusions: HIE is associated with an increased prevalence of AKI. Infants with severe HIE had the highest prevalence of AKI and associated mortality. The study highlights the need for close monitoring and early detection of AKI in infants with HIE, particularly those with severe HIE, to ameliorate the associated adverse outcomes.

Keywords: AKI; HIE; Infants; Length of stay; Mortality.

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