Pulmonary function in patients surviving to COVID-19 pneumonia
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Updated: Dec 13, 2025

Three-Dimensional Phase Resolved Functional Lung Magnetic Resonance Imaging
Published on: June 21, 2024
Alessia Fumagalli1, Clementina Misuraca1, Achille Bianchi1
1Respiratory Unit, IRCCS INRCA (Italian National Research Centre On Aging), 23880, Casatenovo, LC, Italy.
Purpose:
The aim of our study was to assess respiratory function at the time of clinical recovery and 6 weeks after discharge in patients surviving to COVID-19 pneumonia.
Methods:
Our case series consisted of 13 patients with COVID-19 pneumonia.
Results:
At the time of clinical recovery, FEV1 (2.07 ± 0.72 L) and FVC (2.25 ± 0.86 L) were lower compared to lower limit of normality (LLN) values (2.56 ± 0.53 L, p = 0.004, and 3.31 ± 0.65 L, p < 0.001, respectively), while FEV1/FVC (0.94 ± 0.07) was higher compared to upper limit of normality (ULN) values (0.89 ± 0.01, p = 0.029). After 6 weeks pulmonary function improved but FVC was still lower than ULN (2.87 ± 0.81, p = 0.014).
Conclusion:
These findings suggest that COVID-19 pneumonia may result in clinically relevant alterations in pulmonary function tests, with a mainly restrictive pattern.
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