Even though I was taught in medical school more than 40 years ago that nothing could be done for emphysema and advanced chronic obstructive pulmonary disease, I never accepted that dogma. My beliefs were confirmed when we began to observe the tremendous clinical and physiologic benefits of long-term oxygen therapy delivered by a newly available liquid portable system. Soon, oxygen therapy became integrated into a program of pulmonary rehabilitation. Pulmonary rehabilitation was slow to take hold and was usually carried out in a program supervised by pulmonologists. As controlled clinical trials proved the value of long-term oxygen therapy in increasing ...
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Denver, CO 80218 (Petty)
Corresponding Author: Thomas L. Petty, MD, HealthONE, Center for Health Sciences Education, Denver, CO 80218.

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