NDLI: Baroreflex contribution to linear and nonlinear blood pressure and heart rate coupling in daily life: an assessment by cross-mutual information

Content Provider	IEEE Xplore Digital Library
Author	Di Rienzo, M. Castiglioni, P. Parati, G. Zwiener, U. Pompe, B. Hoyer, D.
Copyright Year	2002
Description	Author affiliation: Centro di Bioingegneria, Fnd Don C Gnocchi & Politecnico, Milano, Italy (Di Rienzo, M.; Castiglioni, P.)
Abstract	A new procedure has been developed to (1) investigate the coupling between arterial blood pressure and heart rate variability in daily life and (2) identify the baroreflex contribution to such a coupling. The algorithm is based on the estimation of cross-mutual information (CMI) between systolic blood pressure (SBP) and RR-interval (RRI) beat-to-beat values. CMI has been selected because of its capability to quantify both linear and nonlinear components of the coupling between variables. This procedure has been used to analyze data recorded in spontaneously behaving cats before and seven days after surgical opening of the baroreflex loop as obtained by a sino-aortic denervation. Use of CMI indicates that over a time scale on the order of minutes the arterial baroreflex is the major determinant of the SBI-RRI link, accounting for about 2/3 of the total (linear and nonlinear) coupling measured between these variables.
Starting Page	57
Ending Page	60
File Size	342466
Page Count	4
File Format	PDF
ISBN	0780377354
ISSN	02766547
DOI	10.1109/CIC.2002.1166706
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	Baroreflex Blood pressure Heart rate Couplings Arterial blood pressure Heart rate variability Rail to rail inputs Data analysis Cats Surgery
Content Type	Text
Resource Type	Article

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