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Multiscale Properties of Instantaneous Parasympathetic Activity in Severe Congestive Heart Failure: A Survivor vs Non-Survivor Study

Valenza, Gaetano and Wendt, Herwig and Kiyono, Ken and Hayano, Junichiro and Watanabe, Eiichi and Yamamoto, Yoshiharu and Abry, Patrice and Barbieri, Riccardo Multiscale Properties of Instantaneous Parasympathetic Activity in Severe Congestive Heart Failure: A Survivor vs Non-Survivor Study. (2017) In: 39th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2017), 11 July 2017 - 15 July 2017 (Jeju, Korea, Republic Of).

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Official URL: https://doi.org/10.1109/EMBC.2017.8037675


Multifractal analysis of cardiovascular variability series is an effective tool for the characterization of pathological states associated with congestive heart failure (CHF). Consequently, variations of heartbeat scaling properties have been associated with the dynamical balancing of nonlinear sympathetic/vagal activity. Nevertheless, whether vagal dynamics has multifractal properties yet alone is currently unknown. In this study, we answer this question by conducting multifractal analysis through wavelet leader-based multiscale representations of instantaneous series of vagal activity as estimated from inhomogeneous point process models. Experimental tests were performed on data gathered from 57 CHF patients, aiming to investigate the automatic recognition accuracy in predicting survivor and non-survivor patients after a 4 years follow up. Results clearly indicate that, on both CHF groups, the instantaneous vagal activity displays power-law scaling for a large range of scales, from ≃ 0.5s to ≃ 100s. Using standard SVM algorithms, this information also allows for a prediction of mortality at a single-subject level with an accuracy of 72.72%.

Item Type:Conference or Workshop Item (Paper)
Additional Information:Thanks to IEEE editor. The definitive version is available at http://ieeexplore.ieee.org This papers appears in Proceedings of EMBC 2017. Electronic ISBN: 978-1-5090-2809-2 Electronic ISSN: 1558-4615 The original PDF of the article can be found at: https://ieeexplore.ieee.org/document/8037675 Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
HAL Id:hal-02345551
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > Ecole Normale Supérieure de Lyon - ENS de Lyon (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Other partners > Osaka University (JAPAN)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Université de Toulouse > Université Toulouse - Jean Jaurès - UT2J (FRANCE)
Université de Toulouse > Université Toulouse 1 Capitole - UT1 (FRANCE)
Other partners > Université Claude Bernard-Lyon I - UCBL (FRANCE)
Other partners > Fujita Health University (JAPAN)
Other partners > Nagoya City University Graduate School of Medical Sciences (JAPAN)
Other partners > Politecnico di Milano (ITALY)
Other partners > Université de Lyon - UDL (FRANCE)
Other partners > Università di Pisa (ITALY)
Other partners > University of Tokyo (JAPAN)
Laboratory name:
ANR : Agence nationale de la recherche (France) - CNRS : Centre national de la recherche scientifique (France)
Deposited On:04 Nov 2019 14:32

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