What improvements are likely following continuous positive airway pressure (CPAP) for the treatment of obstructive sleep apnea (OSA)?

Updated: Sep 15, 2020
  • Author: Himanshu Wickramasinghe, MD, MBBS; Chief Editor: Zab Mosenifar, MD, FACP, FCCP  more...
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CPAP has been shown to improve daytime sleepiness, mood, and cognitive function in people with both mild and moderate apnea. [161, 162]

CPAP has also been shown to decrease blood pressure, primarily in patients with severe OSA. [92, 93, 91] Evidence also indicates that it may improve the left ventricular ejection fraction in patients with congestive heart failure and OSA. [99] CPAP plus an antihypertensive medication may synergistically improve systemic hypertension. [95] In addition, it improves right-side heart function and pulmonary hypertension.

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