Definition and Heterogeneity of Asthma

Chronic Asthma in the Adult: Pathogenesis and Pharmacotherapy

“…The differences between these two groups of patients may be complex. 1 However, in recent years, increasing attention has been given to the concept that airway inflammation underlies asthma and its clinical manifestations. Inflammation of the airways, whether it be stimulated by immunologic or nonimmunologic mechanisms, may be the critical event that promotes the development of asthma in general.…”