Journal
INTERNATIONAL JOURNAL OF CARDIOLOGY
Volume 139, Issue 1, Pages 7-16Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.ijcard.2009.05.021
Keywords
Obstructed sleep apnea; Cardiovascular diseases; Endothelial dysfunction; Nasal continuous positive airway pressure; Bi-level positive airway pressure
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Obstructive sleep apnea (OSA) is a common yet an under-diagnosed sleep related breathing disorder affecting predominantly middle-aged men. OSA is associated with many adverse health outcomes, including cardiovascular disease. Common OSA associated/induced cardiovascular disorders include coronary artery disease, heart failure, hypertension, cardiac arrhythmias and stroke, which further increase morbidity and mortality in the OSA population. Endothelial dysfunction, coagulopathy, impaired sympathetic drive, oxidative and inflammatory stress are the pathophysiological pathways suggested for the development of cardiovascular disease in OSA. The evidence would suggest that OSA should be considered as a cardiovascular risk factor, and is a treatable condition. Multiple studies using Continuous Positive Airway Pressure (CPAP) have shown improvements in the clinical state as well as retardation of disease progression. Therefore, patients with cardiovascular disease should be proactively screened for OSA and vice versa. (C) 2009 Elsevier Ireland Ltd. All rights reserved.
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