Lung Hyperinflation: A Complication of Breathing Disorders

4. Causes of Lung Hyperinflation

Breathing disorders that can cause lung hyperinflation result in physical and functional changes to the windpipe, bronchial tubes, and lungs. Airway tissue, muscle, and blood vessel damage is common, giving rise to impaired lung emptying. Permanent changes to the shape of the airway due to inflammation and swelling can also obstruct the flow of air. Factors that increase the risk of hyperinflation include chronic overproduction of mucus in people with cystic fibrosis and frequent asthmatic bronchoconstriction. Most commonly associated with the complication, however, is chronic obstructive pulmonary disease or COPD.