Expiratory flow limitation is a hallmark finding in patients with severe airflow obstruction, as in COPD. It is extremely difficult for these patients to increase their expiratory flow above its ...

Pre- and post-exercise flow-volume loops are often recommended as an easy non-invasive method for diagnosing or excluding exercise-induced laryngeal obstructions in patients with exercise-related ...

Lung volume reduction surgery (LVRS) is a treatment for end-stage lung disease caused by emphysema. Emphysema is a type of chronic obstructive pulmonary disease (COPD) that causes shortness of breath ...