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    The Effect of Hepatosteatosis on the Course of Chest CT Severity Scores in COVID-19 Patients
    (Selçuk Üniversitesi, 2023 Ekim) Turan Kaya, Ahmet; Akman, Burcu; Kaya, Veysel; Çetin, Şirin
    Background/Aims: In the literature, the temporal variation of computed tomography severity score (CT-SS) values on consecutive CTs, which is an indicator of pneumonia severity, was not evaluated according to the presence of hepatosteatosis. We aimed to investigate the effect of hepatosteatosis on the temporal change of CT-SS in COVID-19 patients. Material and Methods: Our retrospective study included 472 RT-PCR positive COVID-19 patients (≥18 years old) admitted to our hospital between December 2021 and January 2022. Chest CT severity scores ranging from 0 to 5 were assigned to each lobe of the lung and total CT-SS was obtained. For quantitative analysis, if the hepatic/splenic attenuation ratio was <1, hepatosteatosis was defined in the first CT. Wilcoxon test was used to evaluate the temporal changes of CT-SS values relative to the presence of hepatosteatosis. Results: A total of 472 patients were included in the study and the mean age was 64.04±14.35 years. 255/472 (54%) of the patients were hepatosteatosis positive. There was no significant difference between hepatosteatosis groups and ICU admission and mortality (p=0.269; p=0.429). The median CT-SS values of the first CT scan of patients with hepatosteatosis were significantly higher than patients without hepatosteatosis (p<0.001). There was a significant increase between the 1st and the 2nd CT-SS in both patients with and without hepatosteatosis (both p<0.001). The increase in the second CT-SS was higher in patients with hepatosteatosis than in patients without hepatosteatosis. Conclusion: Hepatosteatosis is one of the important factors affecting the severity of pulmonary involvement, especially in the early period of COVID-19. Hepatosteatosis may be an indicator of poor prognosis in the temporal change of pneumonia severity in COVID-19 patients.