Nocturnal Oxygen No Help for Isolated Desaturation in COPD Medscape September 16, 2020 Medscape, Sept. 16, 2020 (Reach: 11.4 million) UTMB’s Shawn Nishi was asked to comment on a study on nighttime use of oxygen use in patients with COPD. This news also reported in MDedge and The Hospitalist. « Back | The Newsroom »