Breathing sounds characteristics correlate with structural changes of upper airway due to obstructive sleep apnea

Zahra Moussavi, A. Elwali, R. Soltanzadeh, Cameron A. MacGregor, B. Lithgow

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

6 Citations (Scopus)

Abstract

This paper reports on a pilot study of acoustic properties of respiratory sounds in relation to obstructive sleep apnea (OSA). Data were breathing sounds of 60 individuals in three groups of non-, Moderate and Severe OSA using the apnea/hypopnea index (AHI) (20 in each group). The sounds power spectral energy and phase responses were calculated for each respiratory phase, and investigated among the groups. The results of power spectral analysis, congruent with imaging studies' findings, suggest a regional narrowing in upper airway that shows its effect in low and high frequencies as an opposite pattern between the OSA and non-OSA groups. The results of phase analysis also support an increased nonlinearity in high frequencies that is speculated to be related to the regional narrowing and thus regional elasticity of the airway during wakefulness.

Original languageEnglish
Title of host publication2015 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2015)
EditorsJim Patton
Place of PublicationPiscataway NJ USA
PublisherIEEE, Institute of Electrical and Electronics Engineers
Pages5956-5959
Number of pages4
ISBN (Electronic)9781424492718
ISBN (Print)9781424492695
DOIs
Publication statusPublished - 4 Nov 2015
Externally publishedYes
EventInternational Conference of the IEEE Engineering in Medicine and Biology Society 2015: Biomedical Engineering: A bridge to improve the quality of health care and the quality of life - MiCo - Milano Congressi Center, Milan, Italy
Duration: 25 Aug 201529 Aug 2015
Conference number: 37th
https://embc.embs.org/2015/

Conference

ConferenceInternational Conference of the IEEE Engineering in Medicine and Biology Society 2015
Abbreviated titleEMBC 2015
CountryItaly
CityMilan
Period25/08/1529/08/15
Other37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBS). Our Annual Conference (known as EMBC) is a premier international conference in biomedical engineering, and has been strategically held in different locations around the world, including Chicago, Osaka, San Diego, Boston, Buenos Aires, Minneapolis, Vancouver, Lyon, New York, and Shanghai over the last 10 years.
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