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Association of early dysnatremia with mortality in the neonatal intensive care unit: results from the AWAKEN study
Journal article   Open access   Peer reviewed

Association of early dysnatremia with mortality in the neonatal intensive care unit: results from the AWAKEN study

Abby M. Basalely, Russell Griffin, Katja M. Gist, Ronnie Guillet, David J. Askenazi, Jennifer R. Charlton, David T. Selewski, Mamta Fuloria, Frederick J. Kaskel, Kimberly J. Reidy, …
Journal of perinatology, Vol.42(10), pp.1353-1360
10/01/2022
DOI: 10.1038/s41372-021-01260-x
PMCID: PMC10228559
PMID: 34775486
url
https://pmc.ncbi.nlm.nih.gov/articles/PMC10228559/pdf/nihms-1893409.pdfView
Open Access

Abstract

Objective To determine the association of dysnatremia in the first postnatal week and risk of acute kidney injury (AKI) and mortality. Study design A secondary analysis of 1979 neonates in the AWAKEN cohort evaluated the association of dysnatremia with (1) AKI in the first postnatal week and (2) mortality, utilizing time-varying Cox proportional hazard models. Result Dysnatremia developed in 50.2% of the cohort and was not associated with AKI. Mortality was associated with hyponatremia (HR 2.15, 95% CI 1.07-4.31), hypernatremia (HR 4.23, 95% CI 2.07-8.65), and combined hypo/hypernatremia (HR 6.39, 95% CI 2.01-14.01). In stratified models by AKI-status, hypernatremia and hypo/hypernatremia increased risk of mortality in neonates without AKI. Conclusion Dysnatremia within the first postnatal week was associated with increased risk of mortality. Hypernatremia and combined hypo/hypernatremia remained significantly associated with mortality in neonates without AKI. This may reflect fluid strategies kidney injury independent of creatinine and urine-output defined AKI, and/or systemic inflammation.
Pediatrics Life Sciences & Biomedicine Obstetrics & Gynecology Science & Technology

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