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A clinical approach to obstructive sleep apnea as a risk factor for cardiovascular disease

Authors Maeder M, Schoch O, Rickli H

Received 3 August 2015

Accepted for publication 10 February 2016

Published 21 March 2016 Volume 2016:12 Pages 85—103


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 3

Editor who approved publication: Dr Daniel Duprez

Micha T Maeder,1 Otto D Schoch,2 Hans Rickli1

1Department of Cardiology, 2Department of Respiratory Medicine, Kantonsspital St Gallen, St Gallen, Switzerland

Abstract: Obstructive sleep apnea (OSA) is associated with cardiovascular risk factors, cardiovascular diseases, and increased mortality. Epidemiological studies have established these associations, and there are now numerous experimental and clinical studies which have provided information on the possible underlying mechanisms. Mechanistic proof-of-concept studies with surrogate endpoints have been performed to demonstrate that treatment of OSA by continuous positive airway pressure (CPAP) has the potential to reverse or at least to attenuate not only OSA but also the adverse cardiovascular effects associated with OSA. However, no randomized studies have been performed to demonstrate that treatment of OSA by CPAP improves clinical outcomes in patients with cardiovascular risk factors and/or established cardiovascular disease and concomitant OSA. In the present review, we summarize the current knowledge on the role of OSA as a potential cardiovascular risk factor, the impact of OSA on cardiac function, the role of OSA as a modifier of the course of cardiovascular diseases such as coronary artery disease, atrial fibrillation, and heart failure, and the insights from studies evaluating the impact of CPAP therapy on the cardiovascular features associated with OSA.

Keywords: obstructive sleep apnea, cardiovascular, risk, heart failure, atrial fibrillation, hypertension

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