• Journal of critical care · Dec 2023

    The association between increasing fluid balance, acute kidney injury and mortality in patients with sepsis and septic shock: A retrospective single center audit.

    • Thomas Tackaert, Nina Van Moorter, Nathalie De Mey, Ignace Demeyer, and Koen De Decker.
    • Department of Emergency Medicine, Ghent University Hospital, Ghent University, Ghent, Belgium. Electronic address: thomas.tackaert@uzgent.be.
    • J Crit Care. 2023 Dec 1; 78: 154367154367.

    PurposeTo determine whether a positive fluid balance is associated with AKI and mortality in sepsis and septic shock patients.MethodsA retrospective chart review of 482 patients treated for sepsis or septic shock. Patients were stratified according to quartiles of cumulative fluid balance on days 1 and 3. Logistic models were built to explore the association between fluid balance, AKI, and ICU mortality.ResultsDuring the first days of ICU admission, fluid input did not differ between survivors and non-survivors, yet a significant difference in output resulted in a more positive fluid balance in non-survivors on day 1 (37.24 ± 31.98 ml/kg vs. 24.97 ± 23.76 ml/kg, p < 0.001) and day 3 (83.33 ± 70.86 ml/kg vs. 62.20 ± 45.90 ml/kg, P = 0.005). Using a logistic regression model, a positive fluid balance on day three was independently associated with higher ICU mortality (odds ratio 1.007 for every one ml/kg, P = 0038) and AKIN stage III (odds ratio 1.006 for every one ml/kg, p = 0.031).ConclusionIn patients with sepsis and septic shock, a more positive fluid balance is associated with an increased incidence of acute kidney injury and death after correction for possible confounders.Copyright © 2023 Elsevier Inc. All rights reserved.

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