Abstract
Purpose
To analyze the presence of a floppy epiglottis (FE) during drug-induced sleep endoscopy in non-apneic snoring patients, non-positional obstructive sleep apnea (OSA) patients (NPP), and position-dependent OSA patients (PP) and to evaluate the impact of maneuvers and body position during drug-induced sleep endoscopy, including jaw thrust and supine and lateral head (and trunk) position.
Methods
Retrospective cohort study.
Results
In total, 324 patients were included. In 60 patients (18.5%), a FE was found in supine position: seven non-apneic snoring patients and 53 OSA patients. When performing lateral head rotation only, a FE was present in four patients (NPP, N = 0; PP, N = 4). When patients were tilted to both lateral head and trunk position, a FE was found in only one subject. After applying jaw thrust, a FE was still present in 10 patients. The prevalence of a FE did not differ between NPP and PP. When comparing baseline characteristics between patients with and without a FE in supine position, no significant differences were found.
Conclusion
A FE appears almost exclusively in supine position. In patients with a FE, positional therapy can be a promising alternative as a standalone treatment, but also as part of combination therapy with for example mandibular advancement devices or less invasive forms of upper airway surgery.
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N. de Vries is a member of the Medical Advisory Board of NightBalance and has shares in NightBalance. He is also an investigator of Inspire and Jazz Pharmaceutics, consultant of Philips, Olympus, and the AE Mann Foundation, and has inventor patent on PCT/US2010/062576 including devices, systems, and methods for monitoring sleep position. All other authors declare that they have no conflicts of interest or financial ties to disclose.
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Vonk, P.E., Ravesloot, M.J.L., Kasius, K.M. et al. Floppy epiglottis during drug-induced sleep endoscopy: an almost complete resolution by adopting the lateral posture. Sleep Breath 24, 103–109 (2020). https://doi.org/10.1007/s11325-019-01847-x
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DOI: https://doi.org/10.1007/s11325-019-01847-x