Lung volume reduction surgery involves removing the damaged areas of the lung, allowing the remaining lung tissue to expand when a patient breathes in.

Tami Kelley still recalls the night five years ago when her life changed. A certified nurse assistant, she developed a bad cough and severe migraine that kept her from working a typical midnight shift at her nursing home job.

Kelley took migraine medication, used an inhaler for her asthma and went to bed, hoping to wake up pain-free. But during the night, the Herron, Michigan, resident woke up with an unrelenting headache that convinced her she needed medical attention.