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- W2068534878 abstract "<i>Background:</i> Sleep is associated with important adverse effects in patients with chronic obstructive pulmonary disease (COPD), such as disturbed sleep quality and gas exchange, including hypoxemia and hypercapnia. The effects of inhaled long-acting β<sub>2</sub>-agonist therapy (LABA) on these disturbances are unclear. <i>Objectives:</i> The aim of the study was to assess the effect of inhaled salmeterol on nocturnal sleeping arterial oxygen saturation (Sa<i>O</i><sub>2</sub>) and sleep quality. <i>Methods:</i> In a randomized, double-blind, placebo-controlled, crossover study of moderate/severe stable COPD patients, we compared the effects of 4 weeks of treatment with salmeterol 50 µg b.d. and matching placebo on sleeping Sa<i>O</i><sub>2</sub> and sleep quality. Overnight polysomnography (PSG) was performed at baseline, and after 4 and 8 weeks in addition to detailed pulmonary function testing. Of 15 patients included, 12 completed the trial (median age 69 years, forced expiratory volume in 1 s, FEV<sub>1</sub>: 39%). <i>Results:</i> Both mean Sa<i>O</i><sub>2</sub> [salmeterol vs. placebo: 92.9% (91.2, 94.7) vs. 91.0% (88.9, 94.8); p = 0.016] and the percentage of sleep spent below 90% of Sa<i>O</i><sub>2</sub> [1.8% (0.0, 10.8) vs. 25.6% (0.5, 53.5); p = 0.005] improved significantly with salmeterol. Sleep quality was similar with both salmeterol and placebo on PSG. Static lung volumes, particularly trapped gas volume, tended to improve with salmeterol. <i>Conclusion:</i> We conclude that inhaled LABA therapy improves sleeping Sa<i>O</i><sub>2</sub> without significant change in sleep quality." @default.
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- W2068534878 date "2009-08-14" @default.
- W2068534878 modified "2023-09-25" @default.
- W2068534878 title "Effects of Salmeterol on Sleeping Oxygen Saturation in Chronic Obstructive Pulmonary Disease" @default.
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- W2068534878 doi "https://doi.org/10.1159/000235619" @default.
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