“…This chronic inflammation and subsequent damage cause a reduction in gas exchange efficiency and airflow due to the decreased elastic recoil of the chest wall [ 7 , 12 ]. Additionally, the inflammatory process contributes to structural changes in the airways, including increased mucous gland growth and fibrosis [ 1 , 15 ]. These changes further worsen lung function by obstructing airways and limiting gas exchange capacity, leading to chronic hypoxia and increased carbon dioxide levels in patients [ 3 , 7 ].…”