NGHIÊN CỨU TỔN THƯƠNG PHỔI TRÊN CẮT LỚP VI TÍNH NGỰC Ở BỆNH NHÂN HẬU COVID-19 CÓ TRIỆU CHỨNG HÔ HẤP

Abstract

Introduction: The COVID-19 pandemic is a global situation has triggered a public health emergency and severe social, economic disruption around the world. It is necessary to long-term follow up for detecting sequelae in the post-Covid period. In Vietnam, there is a lack of studies about the imaging of post COVID-19 stage. Purpose: Characterize pulmonary lesions on chest CT in post-COVID-19 patients. Evaluate the association between respiratory symptoms and CT findings. Materials and Methods: Case series study. Patients who had post-COVID-19 re-examinations at Trung Vuong Hospital between June 1, 2022, and December 31, 2022. A semi-quantitative scoring system was used to quantitatively estimate the pulmonary involvement of all these abnormalities on the basis of the area involved; each of the 5 lung lobes was visually scored from 0 to 5; the total CT score was the sum of the individual lobar scores and ranged from 0 to 25. Results: 62 participants (mean age 51,82; 29 male) were assessed. In 56 of 62 (90%) participants, CT abnormalities were observed: ground-glass opacification 74,19%; parenchymal band 70,96%; reticular pattern 33,87%; subpleural curvilinear 12,9%; emphysema 9,67%; bronchodilation 4,83%, nodular 4,83%; consolidation 3,22%. The rate of ground-glass opacification in female was significantly higher than in male. There was an association between cough and ground-glass opacification. The CT score of the lower lobes was significantly higher than the others. Conclusion: CT abnormalities were remained at 12 months after COVID-19 pneumonia. Ground-glass opacification and parenchymal band account for the highest percentage. Lesions were distributed mainly in the lower lobes. Female, cough were associated with ground-glass opacification.