Enlarging narrowed lung airways to enable patients to breathe again

A narrowing in the airways (stenosis) that obstructs the passage of air into the lungs can obstruct breathing and speech, and cause shortness of breath or chest tightness. — Filepic

The primary function of breathing is to absorb oxygen from the air and to get rid of the waste – carbon dioxide – via the movement of the lungs.

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.