Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/110173
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Type: Journal article
Title: CPAP for prevention of cardiovascular events in obstructive sleep apnea
Author: McEvoy, R.
Antic, N.
Heeley, E.
Luo, Y.
Ou, Q.
Zhang, X.
Mediano, O.
Chen, R.
Drager, L.
Liu, Z.
Chen, G.
Du, B.
McArdle, N.
Mukherjee, S.
Tripathi, M.
Billot, L.
Li, Q.
Lorenzi-Filho, G.
Barbe, F.
Redline, S.
et al.
Citation: New England Journal of Medicine, 2016; 375(10):919-931
Publisher: Massachusetts Medical Society
Issue Date: 2016
ISSN: 0028-4793
1533-4406
Statement of
Responsibility: 
R. Doug McEvoy, Nick A. Antic, Emma Heeley, Yuanming Luo, Qiong Ou, Xilong Zhang, Olga Mediano, Rui Chen, Luciano F. Drager, Zhihong Liu, Guofang Chen, Baoliang Du, Nigel McArdle, Sutapa Mukherjee, Manjari Tripathi, Laurent Billot, Qiang Li, Geraldo Lorenzi-Filho, Ferran Barbe, Susan Redline, Jiguang Wang, Hisatomi Arima, Bruce Neal, David P. White, Ron R. Grunstein, Nanshan Zhong, Craig S. Anderson, for the SAVE Investigators and Coordinators
Abstract: BACKGROUND: Obstructive sleep apnea is associated with an increased risk of cardiovascular events; whether treatment with continuous positive airway pressure (CPAP) prevents major cardiovascular events is uncertain. METHODS: After a 1-week run-in period during which the participants used sham CPAP, we randomly assigned 2717 eligible adults between 45 and 75 years of age who had moderate-tosevere obstructive sleep apnea and coronary or cerebrovascular disease to receive CPAP treatment plus usual care (CPAP group) or usual care alone (usual-care group). The primary composite end point was death from cardiovascular causes, myocardial infarction, stroke, or hospitalization for unstable angina, heart failure, or transient ischemic attack. Secondary end points included other cardiovascular outcomes, health-related quality of life, snoring symptoms, daytime sleepiness, and mood. RESULTS: Most of the participants were men who had moderate-to-severe obstructive sleep apnea and minimal sleepiness. In the CPAP group, the mean duration of adherence to CPAP therapy was 3.3 hours per night, and the mean apnea–hypopnea index (the number of apnea or hypopnea events per hour of recording) decreased from 29.0 events per hour at baseline to 3.7 events per hour during follow-up. After a mean follow-up of 3.7 years, a primary end-point event had occurred in 229 participants in the CPAP group (17.0%) and in 207 participants in the usual-care group (15.4%) (hazard ratio with CPAP, 1.10; 95% confidence interval, 0.91 to 1.32; P = 0.34). No significant effect on any individual or other composite cardiovascular end point was observed. CPAP significantly reduced snoring and daytime sleepiness and improved health-related quality of life and mood. CONCLUSIONS: Therapy with CPAP plus usual care, as compared with usual care alone, did not prevent cardiovascular events in patients with moderate-to-severe obstructive sleep apnea and established cardiovascular disease. (Funded by the National Health and Medical Research Council of Australia and others; SAVE ClinicalTrials.gov number, NCT00738179; Australian New Zealand Clinical Trials Registry number, ACTRN12608000409370.)
Keywords: Sleep Apnea, Obstructive
Rights: Copyright © 2016 Massachusetts Medical Society.
RMID: 0030063427
DOI: 10.1056/NEJMoa1606599
Appears in Collections:Medicine publications

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