A comparison of holter and polysomnogram-based detection of bed and wake times

P. K. Stein, R. J. Cohen, B. Mau, P. P. Domitrovich, J. S. Gottdiener, S. R. Redline

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

Abstract

To determine if bed and wake times can be determined from continuous ECG recordings in the elderly, PSG (polysomnogram), ECG channels were extracted and scanned on a Holter analyzer for N=56 participants (age 76±3) in the Sleep Heart Health Study who had 2 PSGs 5 years apart. Bed and wake times were determined from a combination of 5-min averagaed HR and HRV patterns and from HR tachograms of normal-to-normal intervals. Bed and wake times were also extracted from the PSGs. PSG-and HRV bed and wake times were compared via paired t-tests and correlation analysis. Correlations between PSG-and HRV-determined bed and wake times were ≤0.95. HRV-derived bed and wake times were slightly (4±7 min) earlier for and 5±11 min earlier the 2 PSGs, p≤0.001. Mean PSG and ECG-based wake times were closer (12±20s earlier, p=0.069 and 2±8 min later, p=0.049 for the 2 PSGs). Therefore, determination of bedtime and wake time patterns in large Holter cohorts without activity diaries is feasible.

Original languageEnglish
Title of host publicationComputers in Cardiology 2007, CAR 2007
Pages697-700
Number of pages4
DOIs
StatePublished - Dec 1 2007
EventComputers in Cardiology 2007, CAR 2007 - Durham, NC, United States
Duration: Sep 30 2007Oct 3 2007

Publication series

NameComputers in Cardiology
Volume34
ISSN (Print)0276-6574

Conference

ConferenceComputers in Cardiology 2007, CAR 2007
CountryUnited States
CityDurham, NC
Period09/30/0710/3/07

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