The Spectrum of Obstructive Airway Disease: Clinical and Pathophysiologic Insights

Chronic obstructive pulmonary disease (COPD), asthma, bronchiolitis, bronchiectasis, and cystic fibrosis are types of
obstructive airway diseases (OADs), that make it harder for air to flow and make the airways more resistant. This
review focuses on the details of these air way diseases including definition, epidemiological trends, clinical features,
causes, pathophysiological mechanisms, diagnostic methods, and treatment options. Asthma and COPD are the most
common OADs where air pollution, smoking, and genetics making their numbers go up around the world. Bronchiolitis
is a common illness in kids, but bronchiectasis and cystic fibrosis can permanently damage the airways and cause
infection over and over again. Drugs are selected according to the patient's needs and the severity of the illness. This
review highlights on the early diagnosis and treatment modalities available for individual disease conditions which
might be helpful to the healthcare community.