NDLI: Dynamical non-linear analysis of heart rate variability in patients with aortic stenosis

Content Provider	IEEE Xplore Digital Library
Author	Carvajal, R. Vallverdu, M. Baranowski, R. Orlowska-Baranowska, E. Zebrowski, J.J. Caminal, P.
Copyright Year	2002
Description	Author affiliation: Fac. of Comput. Sci., Univ. of Sinaloa, Mazatlan, Mexico (Carvajal, R.)
Abstract	In this study the 24-h Heart Variability Signals (HRV) of 206 patients with Aortic Stenosis (AS) and 68 healthy subjects (NRM) were analyzed, using dynamical nonlinear analysis to compare the complexity of the signals between these two groups during morning (7-12h), afternoon (15-20h) and night (0-5h). The dynamical analysis defines an initial window of 10,000 beats and calculates the Correlation Dimension (CD) as a non-linear index. Then the window is moved 2,500 beats on the time series and the CD of the new window is calculated. This process is repeated until the whole signal is analyzed. It was found that: 1) The CD of HRV has significant lower values in the morning than in the night for both groups. 2) The CD of males is lower than the CD values of females during morning for both groups. 3) The CD of NRM is lower than the CD of AS during the morning, while in the night the CD of NRM males is higher.
Starting Page	449
Ending Page	452
File Size	340366
Page Count	4
File Format	PDF
ISBN	0780377354
ISSN	02766547
DOI	10.1109/CIC.2002.1166806
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-09-22
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Heart rate variability Signal analysis Cardiology Information analysis Entropy Circadian rhythm Pathology Electrocardiography Computer science Physics
Content Type	Text
Resource Type	Article

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