When there is a narrowing in the airways (stenosis) that obstructs the passage of air into the lungs, it can affect the larynx, trachea and surrounding structures.

They include: “The main causes of OSA are the relaxation of muscles at the back of the throat, but factors like obesity, ...

Montelukast attenuates EIB, but its protective effect against airway narrowing from EVH has not been investigated. Objective: To examine the effectiveness of montelukast after exercise and after EVH.