Abstract
Objective: Enlarged pulmonary artery diameter (PAD) can be associated with mortality risk in coronavirus disease 2019 (COVID-19)
patients. Our aim is to find the factors that cause changes in PAD and the relationship between radiological findings and clinical
outcomes in COVID-19 patients.
Patients and Methods: In this descriptive, retrospective, and single centered study, among the hospitalized 3264 patients, 209 patients
with previous chest computed tomography (CT) were included. Findings of current chest CTs of patients obtained during COVID-19
were compared with that of previous chest CTs. Pulmonary involvements, World Health Organization (WHO) Clinical Progression
Scale scores and laboratory variables were recorded. Intensive Care Unit (ICU) admission, intubation and mortality were clinical
outcomes that were evaluated by using uni – and multivariate analyses.
Results: Patients with high D-dimer had significantly increased risk for enlarged PAD and increase in PAD compared to previous
chest CT (ΔPAD) (OR=1.18, p
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