NDLI: Multiscale analysis of heart rate variability for the characterization of subjects with reflex syncope during head-up tilt test

Content Provider	IEEE Xplore Digital Library
Author	Aline, T. Hassan, A. Nadine, K. Guy, C. David, M. Francois, C.
Copyright Year	2015
Description	Author affiliation: Doctoral Sch. for Sci. & Technol., Lebanese Univ., Tripoli, Lebanon (Aline, T.; Hassan, A.) \|\| Lab. of Signal & Image Process., Univ. of Rennes 1, Rennes, France (Nadine, K.; Guy, C.; David, M.; Francois, C.)
Abstract	This study aims to characterize the heart rate variability of subjects with reflex syncope during head-up tilt test and to find out non-linear parameters that can differentiate between subjects who develop syncope during the test and others who do not. For this purpose, the Empirical Mode Decomposition was applied to RR time series of subjects underwent a head-up tilt test. It decomposes the time series into waveforms called Intrinsic Mode Functions (IMF). The IMFs and their cumulative sums were used to extract several parameters as Sample Entropy, Detrended Fluctuation Analysis and indicators from Poincaré plot. The results show that the proposed parameters are significantly different between the two groups in several time scales (p-value<;0.05), which indicate that the heart rate variability has different non-linear characteristics in patients with reflex syncope that can be explored with a multi-resolution tool. Furthermore, pertinent parameters were selected using feature selection algorithm, and employed in the classification test using K-nearest neighbor (KNN). The classification performance show that the selected parameters are efficient to separate between the two populations with a sensitivity of 71% during the first 5 minutes of the tilted position. These findings can help to early predict the outcomes of the head-up tilt test and reduce its duration.
Starting Page	81
Ending Page	84
File Size	462001
Page Count	4
File Format	PDF
ISSN	23775696
e-ISBN	9781467365161
DOI	10.1109/ICABME.2015.7323256
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-09-16
Publisher Place	Lebanon
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Empirical Mode Decomposition Detrended fluctuation analysis Empirical mode decomposition Sensitivity Time series analysis Head-up tilt test Electrocardiography Sample entropy Heart rate variability Biomedical engineering
Content Type	Text
Resource Type	Article

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