COVID-19 and Lung Fibrosis: A Study of Patients Over Two Years
Author Information
Author(s): Lazar Mihai, Barbu Ecaterina Constanta, Chitu Cristina Emilia, Buzoianu Mihaela, Petre Andreea Catalina, Tiliscan Catalin, Arama Stefan Sorin, Arama Victoria, Ion Daniela Adriana, Olariu Mihaela Cristina
Primary Institution: Faculty of Medicine, University of Medicine and Pharmacy Carol Davila
Hypothesis
What are the risk factors for pulmonary fibrosis following COVID-19 pneumonia?
Conclusion
Lung fibrosis is a significant complication after COVID-19, affecting 42% of patients two years post-infection, but the severity of fibrosis decreases over time.
Supporting Evidence
- 67.9% of patients had fibrosis at 3 months, decreasing to 42.4% at 2 years.
- Severe fibrosis cases dropped from 11.6% to 0% over the study period.
- Interstitial pulmonary involvement was the strongest predictor of fibrosis.
Takeaway
Some people who get really sick from COVID-19 can have lung problems later, but many of them get better over time.
Methodology
A retrospective cohort study analyzing CT scans and clinical data of 420 patients with severe COVID-19 at 3 months and 2 years post-discharge.
Potential Biases
Potential bias from excluding patients with pre-existing lung conditions.
Limitations
The study only included patients with severe COVID-19 and did not assess lung function tests.
Participant Demographics
60.71% male, median age 52 years.
Statistical Information
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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