Abstract
Purpose
Continuous positive airway pressure (CPAP) is a standard treatment for obstructive sleep apnea (OSA). However, CPAP has limitations. High-flow nasal cannula (HFNC) is already in use for various types of respiratory diseases. As HFNC generates positive airway pressure, it may be a potential candidate for OSA treatment. This prospective study compared the therapeutic effects of HFNC to CPAP in patients with OSA.
Methods
Patients whose apnea–hypopnea index (AHI) was > 5 events/h were enrolled in this study. All participants were randomly divided into two groups. The first group underwent CPAP the first night and HFNC the second night. Conversely, the second group received HFNC the first night and CPAP the second night. Their respiratory events and sleep quality were compared using baseline polysomnography, CPAP, and HFNC.
Results
In total, 28 participants completed this study. Median [interquartile range] AHI (35.0 [20.0–48.6] vs. 10.8 [5.5–20.6] events/h; p < 0.001) was significantly improved by the HFNC. However, sleep quality was not improved. When CPAP was compared directly with HFNC, CPAP demonstrated a more favorable effect for respiratory events (AHI 5.0 [2.0–7.0] vs. 10.8 [5.5–20.6] events/h; p < 0.001) and sleep efficiency (88.1 [79.9–92.5] vs. 77.9 [69.2–86.6] %; p = 0.001).
Conclusion
The efficacy of CPAP was superior to HFNC for both respiratory events and sleep quality.
Trial registration
ClinicalTrials.gov Identifier: NCT03843372; URL: www.clinicaltrials.gov; Date of registration: November 2, 2019
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Acknowledgements
The authors would like to thank Chang Gung Memorial Hospital Medical Research Council for financial support and the Sleep Center of Keelung, Keelung, Taiwan for data collection and technical assistance.
Funding
This work was supported by the Chang Gung Medical Research Council of Keelung, Taiwan, ROC (grant number CMRPG2H0021).
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C.C.Y. designed the study, conducted subject enrollment, data analysis, and drafted the manuscript. C.Y.H. participated in patient screening, enrollment, and data collection. C.C.H. provided statistical analysis and expert opinions. H.P.W. assisted study design, data analysis, reviewed manuscript, and revised important content.
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Yu, CC., Huang, CY., Hua, CC. et al. High-flow nasal cannula compared with continuous positive airway pressure in the treatment of obstructive sleep apnea . Sleep Breath 26, 549–558 (2022). https://doi.org/10.1007/s11325-021-02413-0
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DOI: https://doi.org/10.1007/s11325-021-02413-0