Selected article for: "abnormal chest and acute distress respiratory syndrome"
Author: Pan, Feng; Yang, Lian; Liang, Bo; Ye, Tianhe; Li, Lingli; Li, Lin; Liu, Dehan; Wang, Jiazheng; Hesketh, Richard L.; Zheng, Chuansheng
Title: Chest CT Patterns from Diagnosis to 1 Year of Follow-up in COVID-19
  • Cord-id: pho0sbky
  • Document date: 2021_10_5
    • ID: pho0sbky
    Snippet: BACKGROUND: The chest CT manifestations of COVID-19 from hospitalization to convalescence after one year are not known. PURPOSE: To assess chest CT manifestations of COVID-19 up to 1 year after symptom onset. MATERIALS AND METHODS: Patients were enrolled if they were admitted to the hospital due to COVID-19 and underwent CT scans during hospitalization at two isolation centers between 27 January and 31 March 2020. In a prospective study, three serial chest CTs were obtained at approximately 3, 7
    Document: BACKGROUND: The chest CT manifestations of COVID-19 from hospitalization to convalescence after one year are not known. PURPOSE: To assess chest CT manifestations of COVID-19 up to 1 year after symptom onset. MATERIALS AND METHODS: Patients were enrolled if they were admitted to the hospital due to COVID-19 and underwent CT scans during hospitalization at two isolation centers between 27 January and 31 March 2020. In a prospective study, three serial chest CTs were obtained at approximately 3, 7, and 12 months after symptom onset and longitudinally analyzed. The total CT score of pulmonary lobe involvement from 0 to 25 was assessed (score 1-5 for each lobe). Uni-/multi-variable logistic regression tests were performed to explore independent risk factors for residual CT abnormalities after one year. RESULTS: 209 study participants (mean age: 49±13 years, 116 women) were evaluated. At 3 months, 61% of participants (128 of 209) had resolution of CT abnormalities; at 12 months, 75% (156 of 209) had resolution. Of chest CT abnormalities that had not resolved, there were residual linear opacities in 25/209 (12%) and multifocal reticular/cystic lesions in 28/209 (13%) participants. Age≥50 years, lymphopenia, and severe/ARDS aggravation were independent risk factors for residual CT abnormalities at one year (odds ratios of 15.9, 18.9, and 43.9, respectively; P<.001, each). In 53 participants with residual CT abnormalities at 12 months, reticular lesions (41 of 53, 77%) and bronchial dilation (39 of 53, 74%) were observed at discharge and were persistent in 53% (28 of 53) and 45% (24 of 53) of participants, respectively. CONCLUSION: One year after COVID-19 diagnosis, chest CT showed abnormal findings in 25% of participants, with 13% showing subpleural reticular/cystic lesions. Older participants with severe COVID-19 or acute respiratory distress syndrome were more likely to develop lung sequelae that persisted at 1 year. See also the editorial by Lee and Wi.

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