RT Journal Article SR Electronic T1 Managing COVID-19 illness: chest radiographs support defining both prognosis and follow up JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP PA459 DO 10.1183/13993003.congress-2021.PA459 VO 58 IS suppl 65 A1 Sadia Ahmed A1 Zaimah Ali A1 Annabel Makan A1 Emma Crawford A1 Devapriya Dev A1 Koottalai Srinivasan A1 Nawaid Ahmad A1 Harmesh Moudgil YR 2021 UL http://erj.ersjournals.com/content/58/suppl_65/PA459.abstract AB Introduction: Chest radiology is pivotal managing acute COVID-19 illness but potentially equally important to follow up. Objectives of this study were to (1) quantify those with COVID requiring follow up, (2) investigate how findings relate to severity, and (3) report abnormal radiology at follow up estimating continued demands.Methods: Retrospective analysis of 217 patients, mean age 71.8 (SD 8.7, range 29-87) years, admitted March to May 2020 and subsequently tracked. Patients requiring >40% FiO2, and/or respiratory device support had severe disease and CXRs were normal or abnormal to COVID changes. Data analysed using statistical software reporting comparisons by chi square (X2).Results: Initial CXRs for 123/213 (58%) patients were abnormal; 59/153 (39%) surviving admission attended follow up; others defaulted or were not requested with normal CXR or expected poor prognosis. 39 (66%) CXRs improved, 20 (34%) remained abnormal; of these, 9 patients had chest CT scans. Severe disease contributed to higher mortality, respectively 37/58 (64%) versus 46/159 (29%), X2 (df 1, n=217) 21.87, p=.0001. Comparing abnormal with normal CXR, 47/122 (39%) versus 11/91 (12%) had severe disease, X2 (df 1, n=213) 18.38, p=.000018. 55/123 (45%) versus 28/90 (31%) of those with initial abnormal CXR have since died, X2 (df 1, n=213) 4.04, p=.0044.Conclusions: Mortality is associated with both the severity of illness and initial COVID related abnormal CXR; 58% have such changes at presentation and among the survivors having follow up radiology improves in two-thirds with approximately half the others then investigated by chest CT giving some indication to planning future services.FootnotesCite this article as: European Respiratory Journal 2021; 58: Suppl. 65, PA459.This abstract was presented at the 2021 ERS International Congress, in session “Prediction of exacerbations in patients with COPD”.This is an ERS International Congress abstract. No full-text version is available. Further material to accompany this abstract may be available at www.ers-education.org (ERS member access only).