About two years ago, John McLees' lungs had become so badly damaged that he could barely get from one side of his small condo to the other without feeling like he'd just finished an intense workout.

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 ...

The first randomized controlled trial to compare two different lung volume reduction procedures for people with emphysema has found that both lead to similar improvements in lung function, ...

The Zephyr valve is a device that can improve breathing in people with emphysema, one of the two most common types of chronic obstructive pulmonary disease (COPD). The valve received approval by the ...