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A. Jogunčić, P. Djuric, A. Gradascevic, Christina Torka, M. Rosenberg, O. Gajic, S. Büttner
0 1. 6. 2023.

#5044 FLUID BALANCE AND GLOMERULAR FILTRATION RATE AS PREDICTORS OF OUTCOME AMONG COVID-19 PATIENTS IN THE ICU

Acute kidney injury (AKI) is associated with an increased risk of progression to a severe form in every disease and, moreover, is associated with an increased mortality, and so it is also with coronavirus disease 2019 (COVID-19). AKI is a frequent complication in COVID-19 patients admitted to ICU for severe respiratory failure. ICU treatment itself indirectly could cause or exacerbate renal damage, through suboptimal fluid management, drug toxicity, or low human resources. The aims of this study were to assess AKI prevalence, fluid balance and glomerular filtration rate as a predictor of outcome in COVID-19 patients treated in the intensive care unit. We retrospectively analysed all adult patients admitted to the ICU at a regional hospital in northern Bavaria, from 1st March to 31st December 2020. Clinical data and laboratory results were retrospectively retrieved from the hospital information system and electronic case files. According to the severity of AKI based on the KDIGO criteria, and laboratory values were followed on the first 7 days on the ICU. In total 320 patients patients were included in the study. Level of significance was set to p<0.05. The mean age was 65 ± 19 years, 135 (42%) patients were females, 185 (58%) were males. Median length of ICU stay was 7 (2-13 days) in females, and 8 days (4- to 21 days) in males. At the ICU, 177 patients needed some form of ventilation, from which 109 (needed Invasive mechanical ventilation). During ICU stay, 81 patients have died, with fatality rate of 25%. Patients with AKI (n=48, 15%) at the admission to the ICU, had 2.1 times higher risk of death at the ICU than patients without AKI. There was a statistically significant difference in ICU survival based on a glomerular filtration rate, fluid balance, CRP and leukocyte values, F=1.957, p=0.026; Wilk's Λ=0.724, partial η2 = 0.276 Acute kidney injury is common in coronavirus disease 2019, and it is associated with poor clinical outcomes. Even first couple of days at the ICU could point to the outcome, with markers of inflammation, glomerular filtration rate, and fluid balance being most valuable variables.

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