Regular and non regular snore features as markers of SAHS

Sleep Apnea-Hypopnea Syndrome (SAHS) diagnosis is still done with an overnight multi-channel polysomnography. Several efforts are being made to study profoundly the snore mechanism and discover how it can provide an opportunity to diagnose the disease. This work introduces the concept of regular sno...

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Published in2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Vol. 2010; pp. 6138 - 6141
Main Authors Mesquita, J, Fiz, J A, Solà-Soler, J, Morera, J, Jané, R
Format Conference Proceeding Journal Article
LanguageEnglish
Published United States IEEE 01.01.2010
Subjects
Adult
Aged
Biomarkers
Electronic mail
Female
Histograms
Hospitals
Humans
Indexes
Male
Medical diagnostic imaging
Middle Aged
Polysomnography
Shape
Signal Processing, Computer-Assisted
Sleep apnea
Sleep Apnea Syndromes - diagnosis
Snoring - diagnosis
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Summary:Sleep Apnea-Hypopnea Syndrome (SAHS) diagnosis is still done with an overnight multi-channel polysomnography. Several efforts are being made to study profoundly the snore mechanism and discover how it can provide an opportunity to diagnose the disease. This work introduces the concept of regular snores, defined as the ones produced in consecutive respiratory cycles, since they are produced in a regular way, without interruptions. We applied 2 thresholds (TH adaptive and TH median ) to the time interval between successive snores of 34 subjects in order to select regular snores from the whole all-night snore sequence. Afterwards, we studied the effectiveness that parameters, such as time interval between successive snores and the mean intensity of snores, have on distinguishing between different levels of SAHS severity (AHI (Apnea-Hypopnea Index)<;5h -1 , AHI<;10 h -1 , AHI<;15h -1 , AHI<;30h -1 ). Results showed that TH adaptive outperformed TH median on selecting regular snores. Moreover, the outcome achieved with non-regular snores intensity features suggests that these carry key information on SAHS severity.
ISBN:1424441234
9781424441235
ISSN:1094-687X
1557-170X
DOI:10.1109/IEMBS.2010.5627786