Assessment of chest CT abnormalities and pulmonary function at 6-month and 1-year after hospital discharge in Chinese patients of COVID-19 pneumonia at the turn of 2022–2023

Bibliographic Details
Title: Assessment of chest CT abnormalities and pulmonary function at 6-month and 1-year after hospital discharge in Chinese patients of COVID-19 pneumonia at the turn of 2022–2023
Authors: Xingyu Fang, Jialin Li, Yijun Zhang, Wei Lv, Lin Liu, Yun Feng, Li Liu, Feng Pan, Jinping Zhang
Source: Frontiers in Medicine, Vol 12 (2025)
Publisher Information: Frontiers Media S.A., 2025.
Publication Year: 2025
Collection: LCC:Medicine (General)
Subject Terms: COVID-19, SARS-CoV-2, pulmonary function, tomography, X-ray, follow-up, Medicine (General), R5-920
More Details: ObjectiveThis study aimed to assess chest CT abnormalities and pulmonary function at 6-month and 1-year follow-ups in coronavirus disease 2019 (COVID-19) pneumonia patients of the China epidemic in the turn of 2022–2023.MethodsA total of 156 hospitalized patients with COVID-19 pneumonia admitted between 29 November 2022 and 10 February 2023 were prospectively assessed at 6-month and 1-year follow-ups. Characteristics and CT scores of pulmonary abnormalities and pulmonary function were compared between different follow-up time points. The correlation of CT abnormalities and pulmonary function at 1-year were evaluated.ResultsOver 1 year, the proportion of pulmonary abnormalities gradually decreased (initial, 100%, 156/156; 6-month, 57.1%, 89/156; and 1-year, 37.8%, 59/156; P < 0.001), whereas fibrotic changes increased (initial, 6.4%, 10/156; 6-month, 14.1%, 22/156; and 1-year, 14.7%, 23/56; P < 0.001). Compared to participants of the subgroup with nonfibrotic changes, diffusion capacity of the lung for carbon monoxide (DLCO)(P = 0.01) and DLCO less than 80% predicted (P < 0.001) showed significantly decrease in participants of the subgroup with fibrotic changes. The extent of fibrotic changes was strongly correlated with lower DLCO (r = −0.734, P < 0.001).ConclusionFibrotic changes might show a tendency to persist over time and correlate strongly with impairment of diffusion function, thus requiring more attention in future follow-ups.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2296-858X
Relation: https://www.frontiersin.org/articles/10.3389/fmed.2025.1463320/full; https://doaj.org/toc/2296-858X
DOI: 10.3389/fmed.2025.1463320
Access URL: https://doaj.org/article/a169fa1f842040989eb39e9578091b43
Accession Number: edsdoj.169fa1f842040989eb39e9578091b43
Database: Directory of Open Access Journals
More Details
ISSN:2296858X
DOI:10.3389/fmed.2025.1463320
Published in:Frontiers in Medicine
Language:English