Background: Although SARS-CoV-2 infection often affects the lungs, pneumothorax is extremely rare. The aim of this study was to analyze the characteristics of patients who were hospitalized due to COVID-19 and who developed pneumothorax (PNX) and to analyze their risk factors. Methods: Patients who developed PNX, among the patients who were followed up in the hospital due to COVID-19 between 1 April 2020 and 1 April 2022, were included in the study. The mean and standard deviation values of the descriptive statistics were obtained from patient data. The entire application was carried out using IBM SPSS 26 (IBM Corp., Armonk, NY, USA). p values < 0.05 were considered statistically significant. Results: We observed that advanced age and male gender increase the risk of COVID-19 patientsdeveloping PNX, but smoking, sepsis, and being followed-up with mechanical ventilation do not increase this risk. In addition, we observed that the presence of an additional disease increases the mortality rate. Conclusion: We show that advanced age and male gender increase the risk for PNX, which is a rare complication of COVID-19, and that comorbidity is associated with mortality in these patients.

Aim: To study the relation between troponin and pulmonary artery obstruction index in thoracic computerized tomography in patients diagnosed with acute pulmonary embolism. Material and Method: Data obtained from patients hospitalized in the ward and intensive care units with a pulmonary embolism diagnosis between January 2016 and February 2022 were scanned retrospectively. The full blood count, D-dimer, C-reactive protein, procalcitonin, troponin I, thoracic computerized tomography (CT), angiography, and bilateral lower extremity venous Doppler ultrasonography data were extracted. Patients with left heart failure, renal failure, gastrointestinal hemorrhage, sepsis, respiratory system disease, burns, ischemic stroke, or subarachnoid hemorrhage were excluded. The obstruction indices were calculated according to storage defects in the main, right, left, lobar, and segmental pulmonary artery branches in CT angiography. Results: While 57.0% of the 69 patients included in the study were female, 42.1% were male. The obstruction index in the high troponin-I group was significantly higher than that in the normal troponin-I group (p=0.006). In addition, the obstruction index was significantly higher in patients with bilateral pulmonary embolism than in those with unilateral pulmonary embolism (

Aim: SARS-CoV-2 infection frequently affects the lungs, it can also cause severe inflammation in the lower respiratory tract, leading to tracheal damage. We aimed to investigate the relationship between the mean tracheal air column and COVID-19.Material and Method: Chest computed tomography scans of COVID-19 patients treated in an intensive care unit between June 1st, 2020 and October 1st 2022 were retrospectively evaluated. The air column area of the trachea was measured and the effect of the values obtained on mortality and length of stay in the intensive care unit for patients COVID-19 was examined.Results: We found that an increase in the mean tracheal air column increased mortality by 1.218 times. We also determined that an increase in the mean area of the tracheal air column increased the length of stay in the intensive care unit. Furthermore, we showed that advanced age and an increase in the length of stay in the intensive care unit were factors that increased mortality.Conclusion: Tracheomegaly is a poor prognostic factor in COVID-19 disease and is easily diagnosed with CT.