• Tijana Radonjić, Ognjen Milićević, Igor Jovanović, Marija Zdravković, Marija Dukić, Olga Milorad Mandić, Jelica Bjekić-Macut, Olivera Borko Marković, Zoran Todorović, Milica Brajković, Novica Nikolić, Slobodan Klašnja, Višeslav Popadić, Anica Divac, Milica Marinković, Nabil Alhayek, and Marija Svetislav Branković.
• University Hospital Medical Center Bežanijska Kosa, 11000 Belgrade, Serbia.
• Medicina (Kaunas). 2022 Jun 23; 58 (7).

BackgroundThis study aimed to calculate the frequency of elevated liver enzymes in hospitalized patients with coronavirus disease 2019 (COVID-19) infection and to test if liver enzyme biochemistry levels on admission could predict the computed tomography (CT) scan severity score of bilateral interstitial pneumonia.MethodsThis single-center study comprised of 323 patients including their demographic data, laboratory analyses, and radiological findings. All the information was taken from electronic health records, followed by statistical analysis.ResultsOut of 323 patients, 115 of them (35.60%) had aspartate aminotransferase (AST) and/or alanine aminotransferase (ALT) over 40 U/L on admission. AST was the best predictor of CT scan severity score of bilateral interstitial pneumonia (R2 = 0.313, Adjusted R2 = 0.299). CT scan severity score in the peak of the infection could be predicted with the value of AST, neutrophils, platelets, and monocytes count (R2 = 0.535, Adjusted R2 = 0.495).ConclusionAST, neutrophils, platelets, and monocytes count on admission can account for almost half (49.5%) of the variability in CT scan severity score at peak of the disease, predicting the extensiveness of interstitial pneumonia related to COVID-19 infection. Liver enzymes should be closely monitored in order to stratify COVID-19 patients with a higher risk of developing severe forms of the disease and to plan the beforehand step-up treatment.

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