In the present document the multiscale entropy (MSE) methodology has been applied to analyze the complex behavior of the heart rate variability (HRV), in patients with aortic stenosis (AS). A set of healthy voluntaries have been used as a control group. MSE analysis calculates an entropy rate over different time scales to assess the complexity of time series, evaluating short-term and long-term correlations. Daytime and nighttime have been considered to study variations of the complexity inside the same group of population. A statistical analysis showed that entropy was significantly higher in healthy subjects than in AS subjects in all the scales during daytime, with exception at scale 1. During nighttime, entropy in healthy subjects was significantly higher than in AS subjects only in scales from 1 to 7. Multiscale entropy is helpful to characterize AS patients and distinguish them from healthy subjects.
Multiscale sample entropy in heart rate variability of aortic stenosis patients / J.F. Valencia, A. Porta, M. Vallverdù, F. Clarià, R. Baranowski, E. Orlowska Baranowska, P. Caminal (IEEE ENGINEERING IN MEDICINE AND BIOLOGY ... ANNUAL CONFERENCE PROCEEDINGS). - In: Proceedings of the 30th Annual International Conference of the IEEE EMBS[s.l] : null, 2008. - ISBN 978-1-4244-1814-5. - pp. 2000-2003 (( Intervento presentato al 30. convegno Annual International Conference of the IEEE EMBS tenutosi a Vancouver, Canada nel 2008 [10.1109/IEMBS.2008.4649582].
Multiscale sample entropy in heart rate variability of aortic stenosis patients
A. PortaSecondo
;
2008
Abstract
In the present document the multiscale entropy (MSE) methodology has been applied to analyze the complex behavior of the heart rate variability (HRV), in patients with aortic stenosis (AS). A set of healthy voluntaries have been used as a control group. MSE analysis calculates an entropy rate over different time scales to assess the complexity of time series, evaluating short-term and long-term correlations. Daytime and nighttime have been considered to study variations of the complexity inside the same group of population. A statistical analysis showed that entropy was significantly higher in healthy subjects than in AS subjects in all the scales during daytime, with exception at scale 1. During nighttime, entropy in healthy subjects was significantly higher than in AS subjects only in scales from 1 to 7. Multiscale entropy is helpful to characterize AS patients and distinguish them from healthy subjects.File | Dimensione | Formato | |
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