Application of data to the case
Our patient has stable COPD and had only moderate exercise-induced desaturation. Long-term supplemental oxygen would not produce a benefit for him.
This study shows us that it would not increase his survival at this point; however, if he were to have worsening exercise-induced or new resting desaturation at some point in the future, supplemental oxygen would then be beneficial. At this point supplemental oxygen would not even affect his rate of hospitalization for COPD- or non-COPD–related reasons. Perhaps most importantly, adding oxygen therapy would not affect his overall quality of life, including his functional status and mood.
Bottom line
The addition of supplemental oxygen is not helpful for patients with COPD who have chronic stable moderate hypoxia.
Dr. Farber is a medical instructor in the Duke University Health System in Durham, N.C. Dr. Sata is a medical instructor in the Duke University Hospital. Dr. Wachter is an assistant professor of medicine at Duke University. Dr. Sharma is associate medical director for clinical education in hospital medicine at Duke Regional Hospital and an assistant professor of medicine at Duke University.
References
1. Nocturnal Oxygen Therapy Trial Group. Continuous or nocturnal oxygen therapy in hypoxemic chronic obstructive lung disease: A clinical trial. Ann Intern Med. 1980 Sep;93(3):391-8.
2. Medical Research Council Working Party. Long term domiciliary oxygen therapy in chronic hypoxic cor pulmonale complicating chronic bronchitis and emphysema: Report of the Medical Research Council Working Party. Lancet 1981 Mar 28;1(8222):681-6.
3. Long-term oxygen treatment trial research group et al. A randomized trial of long-term oxygen for COPD with moderate desaturation. N Engl J Med. 2016 Oct 27;375(17):1617-27.
Additional reading
Stoller JK et al. Oxygen therapy for patients with COPD: Current evidence and the Long-term Oxygen Treatment Trial. Chest. 2010 July;138:179-87.
Qaseem A et al. Diagnosis and management of stable chronic obstructive pulmonary disease: A clinical practice guideline update from the American College of Physicians, American College of Chest Physicians, American Thoracic Society, and European Respiratory Society. Ann Intern Med. 2011 Aug 2;155(3):179-91.
Ameer F et al. Ambulatory oxygen for people with chronic obstructive pulmonary disease who are not hypoxaemic at rest. Cochrane Database Syst Rev. 2014 Jun 24;(6):CD000238.
Vestbo J et al. Global strategy for the diagnosis, management, and prevention of chronic obstructive pulmonary disease: GOLD executive summary. Am J Respir Crit Care Med. 2013 Feb 15;187(4):347-65.
Quiz: Does this patient need oxygen?
You are caring for a 72-year-old man with stable COPD who was admitted for cellulitis. He is improving clinically on appropriate antibiotics, and he has been stable on room air every time you examine him. The nurse pages you on the day of discharge – a Sunday – informing you that his oxygen saturation dropped to 88% while he was walking the halls this morning. She asks whether he needs to stay in the hospital so you can arrange home supplemental oxygen therapy. What should you do?
A. Keep him in the hospital until you can arrange home oxygen therapy.
B. Discharge him home Sunday but have the oxygen company go out to his house first thing on Monday.
C. Discharge him home without supplemental oxygen therapy.
D. Check an arterial blood gas to help decide if you should set up oxygen therapy.
The answer is C. He meets the description of stable COPD with mild to moderate exercise-induced desaturation. The LOTT trial supports our clinical decision that he would not benefit from supplemental oxygen therapy at this point.