Interaction between sleep EEG and ECG signals during and after obstructive sleep apnea events with or without arousals

A. H. Khandoker, C. K. Karmakar, M. Palaniswami

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

9 Scopus citations

Abstract

This is a preliminary attempt to directly investigate the interactions of sleep EEG and ECG signals during normal, OSA breathing event and events following its termination with or without arousal in non-REM(NREM) and REM sleep stages. ECG and EEG signals were collected from 10 patients with OSA and 5 healthy subjects. Coherence between two signals (CoherenceECG-EEG) over different frequency bands(range:0∼40Hz) were calculated for normal breathing events, OSA events and events following OSA terminations (with/without arousals) in NREM as well as REM sleep. In normal breathing events, overall CoherenceECG-EEG in REM sleep is higher than that in NREM sleep. Significant (p<0.01) differences of CoherenceECG-EEG between OSA events with and without arousals were found in NREM sleep over 0.5-25 Hz bands but in REM sleep over 3.0-12 Hz. This research could be useful in understanding cardiac dysfunction in sleep apnoea patient.

Original languageBritish English
Title of host publicationComputers in Cardiology 2008, CAR
Pages685-688
Number of pages4
DOIs
StatePublished - 2008
EventComputers in Cardiology 2008, CAR - Bologna, Italy
Duration: 14 Sep 200817 Sep 2008

Publication series

NameComputers in Cardiology
Volume35
ISSN (Print)0276-6574

Conference

ConferenceComputers in Cardiology 2008, CAR
Country/TerritoryItaly
CityBologna
Period14/09/0817/09/08

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