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Effect of ectopic beats on heart rate variability indices in heart failure patients

Lookup NU author(s): Professor Alan Murray

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This is the authors' accepted manuscript of a conference proceedings (inc. abstract) that has been published in its final definitive form by Springer Verlag, 2018.

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Abstract

© Springer Nature Singapore Pte Ltd. 2019. Heart rate variability (HRV) provides a valuable tool for early detection of cardiovascular abnormalities. Ectopic beats have been proven to have an influence on HRV results, but the effect of different amount of ectopic beats on analysis of congestive heart failure (CHF) patient rhythms has not been quantified. In this study, we tested the commonly used HRV indices for significant differences between 5-min RR segments with and without ectopic beats. Eight long-term CHF RR interval recordings from http://www.physionet.org were studied. Each recording was divided into non-overlapping segments of 5-min RR segments without or with different numbers of ectopic beats. Two time-domain HRV indices of SDNN and RMSSD and two frequency-domain indices of normalized low frequency (LFn) and high frequency (HFn) powers were employed. Results showed that ectopic segments had significantly larger values for SDNN (39 ± 18 vs. ectopic free segments 28 ± 16 ms, P < 0.05), RMSSD (47 ± 29 vs. 24 ± 23 ms, P < 0.05) and HFn (0.66 ± 0.13 vs. 0.52 ± 0.14, P < 0.01), and significantly lower values for LFn (0.34 ± 0.13 vs. ectopic free segments 0.48 ± 0.14, P < 0.01). Compared with the indices of RMSSD and frequency-domain indices, SDNN was least affected by a relatively small amount of ectopic beats (one to six beats). Compared with the time-domain indices, the frequency-domain indices responded more quickly to the appearance of ectopic beats.


Publication metadata

Author(s): Liu C, Zhao L, Cai Z, Liu F, Li Y, Wei S, Li J, Murray A

Editor(s): Lhotska L :Sukupova L; Lacković I; Ibbott GS

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: World Congress on Medical Physics and Biomedical Engineering 2018

Year of Conference: 2018

Pages: 361-365

Online publication date: 30/05/2018

Acceptance date: 02/04/2018

ISSN: 1433-9277

Publisher: Springer Verlag

URL: https://doi.org/10.1007/978-981-10-9038-7_68

DOI: 10.1007/978-981-10-9038-7_68

Library holdings: Search Newcastle University Library for this item

Series Title: IFMBE Proceedings

ISBN: 9789811090387


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