JOURNAL OF SHANDONG UNIVERSITY (OTOLARYNGOLOGY AND OPHTHALMOLOGY) ›› 2015, Vol. 29 ›› Issue (3): 1-5.doi: 10.6040/j.issn.1673-3770.0.2015.054

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Sources of snoring sound during drug-induced sleep observed with fiberoptic laryngoscope

XU Huijie1, JIA Ruifang2, YU Hui2, GAO Zhan1, PENG Hao1, YANG Yi1, ZHANG Lei1, HUANG Weining1   

  1. 1. Department of Otorhinolaryngology, Beijing Hospital, Beijing 100730, China;
    2. Department of Anesthesiology, Beijing Hospital, Beijing 100730, China
  • Received:2015-01-27 Revised:2015-04-29 Online:2015-06-16 Published:2015-06-16

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Abstract: Objective To investigate the sources of snoring sound in simple snores and in patients with different degrees of obstructive sleep apnea/hypopnea syndrome (OSAHS). Methods A total of 15 subjects with simple snores and 37 patients with mild to severe OSAHS were involved. Sites of vibration from nasopharynx to laryngeal pharynx while snoring in each patient were observed with fiberoptic laryngoscope during drug-induced sleep. Results Vibration of soft palate, lateral wall, epiglottis and tongue base could be observed during snoring, and the distribution of lateral wall vibration had statistical significance among different groups.52 snores showed two types of source of snoring in general: palatal fluttering only(type Ⅰ) and multisite vibration (type Ⅱ). The latter could be divided into 3 subtypes further: palatal fluttering with vibration of epiglottis (type Ⅱa), palatal fluttering with vibration of Lateral wall(type Ⅱb), and palatal fluttering with vibration of lateral wall, epiglottis and tongue base together(type Ⅱc). Percentage of type Ⅰ decreased as the severity of OSAHS increased. Type IIb was more common in patients with media and heavy OSAHS, and type IIc were most common in patients with heavy OSAHS. Conclusion Source of snoring is of diversity, snorers with different severity of sleep breath disorder shows different patterns of that. The main source of snoring should be identified when we choose treatment method for snorers.

Key words: Drug-induced sleep, Fiberoptic laryngoscope, Sleep apnea hypopnea, obstructive, Snoring sound, Simple snoring

CLC Number: 

  • R766.7
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