• J Clin Hypertens (Greenwich) · Mar 2015

    Review Meta Analysis

    The role of continuous positive airway pressure in blood pressure control for patients with obstructive sleep apnea and hypertension: a meta-analysis of randomized controlled trials.

    • Xinyu Hu, Jinqi Fan, Shaojie Chen, Yuehui Yin, and Bernhard Zrenner.
    • Department of Cardiology, the Chongqing Cardiac Arrhythmias Service Center, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, China.
    • J Clin Hypertens (Greenwich). 2015 Mar 1; 17 (3): 215-22.

    AbstractThe aim of this study was to review the effect of continuous positive airway pressure (CPAP) on blood pressure (BP) in patients with obstructive sleep apnea (OSA) and hypertension. Biomedical databases were searched for randomized controlled trials (RCTs) comparing CPAP with control among these patients. Seven RCTs reporting 24-hour ambulatory BP were identified for meta-analysis. CPAP was associated with significant reductions in 24-hour ambulatory systolic blood pressure (SBP) (-2.32 mm Hg; 95% confidence interval [CI], -3.65 to -1.00) and diastolic blood pressure (DBP) (-1.98 mm Hg; 95% CI, -2.82 to -1.14). CPAP led to more significant improvement in nocturnal SBP than that in diurnal SBP. Subgroup analysis showed that patients with resistant hypertension or receiving antihypertensive drugs benefited most from CPAP. Meta-regression indicated that CPAP compliance, age, and baseline SBP were positively correlated with decrease in 24-hour DBP, but not reduction in 24-hour SBP. © 2015 Wiley Periodicals, Inc.

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