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People with COPD who need and use continuous oxygen therapy 24 hours a day tend to have a longer lifespan than those who use it only while awake (15 hours per day). In turn, individuals who use oxygen therapy 15 hours per day do better than those who use it only while they are sleeping. Publication Review By: Peter B. Terry, M.D., M.A. Published: 08 Aug 2011
COPD Patients. The role of oxygen in chronic obstructive pulmonary disease (COPD) patients has been debated for decades. Issues such as a theoretical âhypoxic driveâ in patients with COPD and chronic hypercarbia have led to controversies over how much oxygen to give them. While hypoxia must be corrected quickly when it exists, the definition of hypoxia in terms of oxygen saturation has been unclear.