Sound frequency spectra of snore in relation to the site of obstruction among snorers

xlomafota13 shared this article with you from Inoreader Sound frequency spectra of snore in relation to the site of obstruction among snorers Via Acta Otorhinolaryngol Ital Acta Otorhinolaryngol Ital. 2021 Aug;41(4):348-355. doi: 10.14639/0392-100X-N1202. ABSTRACT OBJECTIVE: This study aimed to describe the sound frequency of snoring in relation to the site of upper airway vibration among snorers. METHODS: 383 snores from 40 participants who complained of snoring were digitally recorded during natural and induced sleep using a level III polysomnography monitor with a built-in microphone. During drug-induced sleep endoscopy (DISE), the rea l-time site of upper airway obstruction was assessed, and the sound frequency of snoring was recorded synchronously. RESULTS: The mean peak of snoring frequency for unilevel palatal, oropharynx and epiglottis obstruction were 522.5, 482.4 and 300.0 Hz, respectively. Most participants showed multilevel obstruction at the palate and oropharynx, in which the mean for bi-peak snoring frequency were 402.90 Hz and 1086.96 Hz, respectively. Severity of OSA was significantly associated with multilevel obstruction. CONCLUSIONS: There was a significant association between the snoring sound frequency and site of unilevel obstruction. Palatal or oropharyngeal obstruction produced sound at mid-frequency range, while the epiglottis produced a low frequency range. Multilevel obstruction documented a bi-peak snoring frequency. PMID:34533538 | DOI:10.14639/0392-100X-N1202 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.