NDLI: The influence of recording length on time and frequency domain analysis of heart rate variability

Content Provider	IEEE Xplore Digital Library
Author	Haaksma, J. Dijk, W.A. Brouwer, J. van den Berg, M.P. Dassent, W.R.M. Mulder, B. Crijns, H.J.G.M.
Copyright Year	1998
Description	Author affiliation: Dept. of Cardiology, Maastricht Univ., Netherlands (Haaksma, J.)
Abstract	Analysis of Heart Rate Variability (HRV) is used to assess autonomic control of the heart. Many technical aspects may influence the outcome of HRV analysis. One of these aspects is recording length. Ambulatory monitoring recordings are frequently used as a data source. Because of their mathematical properties, some HRV variables are influenced by recording length. Further more, recording length may play a role, since, in clinical practice, hook-up times of ambulatory monitoring are not randomly distributed over time. In order to test recording-length related changes of HRV the authors tested three groups: 1. healthy subjects (n=24); 2. congestive heart failure patients (n=24); and 3. patients with coronary artery disease (n=21). Results revealed that although the average normal to normal interval already changed after 1 hour reduction, most time domain variables differed statistically significantly after 4 hours reduction in length. Frequency domain variables proved to be less sensitive to recording-length changes. The extent of length related changes of HRV was shown to vary in different patient categories. It is concluded that ambulatory monitoring recordings less than 20 hours long should not be used for HRV analysis.
Starting Page	377
Ending Page	380
File Size	346245
Page Count	4
File Format	PDF
ISBN	0780352009
ISSN	02766547
DOI	10.1109/CIC.1998.731818
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-09-13
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Frequency domain analysis Heart rate variability Patient monitoring Cardiology Condition monitoring Testing Electrocardiography Performance analysis Heart rate Arteries
Content Type	Text
Resource Type	Article

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