Sleep apnea detection using time-delayed heart rate variability

M-M. Nano, X. Long, J.V.S.W. Werth, R.M. Aarts, R. Heusdens

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

1 Citation (Scopus)
213 Downloads (Pure)

Abstract

Sleep apnea is a sleep disorder distinguished by repetitive absence of breathing. Compared with the traditional expensive and cumbersome methods, sleep apnea diagnosis or screening with physiological information that can be easily acquired is needed. This paper describes algorithms using heart rate variability (HRV) to automatically detect sleep apneas as long as it can be easily acquired with unobtrusive sensors. Because the changes in cardiac activity are usually hysteretic than the presence of apneas with a few minutes, we propose to use the delayed HRV features to identify the episodes with sleep apneic events. This is expected to help improve the apnea detection performance. Experiments were conducted with a data set of 23 sleep apnea patients using support vector machine (SVM) classifiers and cross validations. Results show that using eleven HRV features with a time delay of 1.5 minutes rather than the features without time delay for SA detection, the overall accuracy increased from 74.9% to 76.2% and the Cohen's Kappa coefficient increased from 0.49 to 0.52. Further, an accuracy of 94.5% and a Kappa of 0.89 were achieved when applying subject-specific classifiers.
Original languageEnglish
Title of host publicationProceedings of the 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC'15), 25-29 August 2015, Milan, Italy
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Pages7679-7682
Number of pages4
ISBN (Print)978-1-4244-9270-1
DOIs
Publication statusPublished - 2015
Event37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2015) - "MiCo" , Milan, Italy
Duration: 25 Aug 201529 Aug 2015
Conference number: 37
https://www.embs.org/events/37th-annual-international-conference-of-the-ieee-engineering-in-medicine-and-biology-society/
http://embc.embs.org/2015/

Conference

Conference37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2015)
Abbreviated titleEMBC 2015
Country/TerritoryItaly
CityMilan
Period25/08/1529/08/15
Internet address

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