Related Experiment Video
Updated: Aug 23, 2025
07:51
Refined Murine Model of Idiopathic Pulmonary Fibrosis
Published on: June 17, 2025
233
Small airway dysfunction in idiopathic pulmonary fibrosis
Chengsheng Yin1,2, Huikang Xie3, Xian He2
1Department of Pulmonary and Critical Care Medicine, Yijishan Hospital, The first Affiliated Hospital of Wannan Medical College, Wuhu, Anhui, China.
Frontiers in Pharmacology
|October 28, 2022
Summary
Idiopathic pulmonary fibrosis (IPF) often involves small airway dysfunction (SAD), affecting over a third of patients. This comorbidity significantly increases mortality risk in IPF patients.
Area of Science:
- Pulmonology
- Respiratory Medicine
- Pathophysiology
Background:
- Idiopathic pulmonary fibrosis (IPF) pathophysiology traditionally focuses on lung interstitium and alveoli.
- Airway involvement in IPF has been historically underreported.
Purpose of the Study:
- To investigate the prevalence of small airway dysfunction (SAD) in IPF patients.
- To determine the impact of comorbid SAD on IPF patient survival.
Main Methods:
- Retrospective analysis of 243 IPF inpatients diagnosed between 2011-2021.
- Lung function parameters were utilized to assess SAD.
- Fine-Grey regression models (univariate and adjusted) were employed to evaluate survival impact.
Main Results:
- 34.57% of IPF patients exhibited comorbid SAD.
- Histopathology in lung transplant recipients revealed airway lesions, with SAD patients showing higher airway distortion.
- Risk factors for IPF with SAD included smoking, male sex, younger age, and high CT scores for fibrosis and emphysema.
Conclusions:
- Small airway dysfunction is a prevalent comorbidity in IPF.
- IPF with comorbid SAD is an independent risk factor for increased mortality.
- These findings highlight the importance of considering airway involvement in IPF management.
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