Acoustic characteristics of snoring according to obstruction site determined by sleep videofluoroscopy

Acta Oto-laryngologica
Tae-Bin WonChul Hee Lee

Abstract

Acoustic characteristics of snoring sound, such as pitch and formant, differed according to the site of upper airway obstruction determined by sleep videofluoroscopy (SVF). Snoring sound analysis can complement determination of the site of obstruction in snoring and sleep apnea patients. The aim of this study was to evaluate the acoustic characteristics of snoring according to obstruction site determined by SVF. Ninety patients who underwent simultaneous snoring sound recording during SVF were included in this study. Acoustic parameters of snoring such as pitch (min, mean, max) and formant (1,2) were analyzed. Site of obstruction was determined by SVF and classified according to anatomic structure and level of obstruction. Mean value of peak frequency showed significant difference between soft palate and isolated tongue base or epiglottis obstruction and combined obstruction involving soft palate and tongue base or epiglottis. Peak frequency of velopharyngeal obstruction showed difference only with hypopharyngeal obstruction. First formant showed similar results in the structure classification whereas velopharyngeal obstruction showed significant difference compared with other levels of obstruction. Other parameters (intensity,...Continue Reading

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Citations

Dec 28, 2012·Medical & Biological Engineering & Computing·Ali Azarbarzin, Zahra Moussavi
Feb 9, 2013·European Archives of Oto-rhino-laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery·Bhik KotechaBen Gowers
Sep 16, 2015·The Laryngoscope·Carlos TorreRobson Capasso
Nov 28, 2014·Sleep & Breathing = Schlaf & Atmung·Michael HerzogPatrick Kellner

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