Joint symbolic analyses of heart rate, blood pressure, and respiratory dynamics

Date

2013

Authors

Baumert, M.
Javorka, M.
Kabir, M.

Editors

Advisors

Journal Title

Journal ISSN

Volume Title

Type:

Journal article

Citation

Journal of Electrocardiology, 2013; 46(6):569-573

Statement of Responsibility

Mathias Baumert, Michal Javorka, Muammar M. Kabir

Conference Name

Abstract

<h4>Introduction</h4>The dynamics of cardiovascular variables are modulated by respiration. The aim of this study was to assess baroreflex function in normal subjects based on the joint symbolic dynamics of heart rate, blood pressure and respiration.<h4>Methods</h4>ECG, continuous blood pressure and respiration were recorded in ten healthy subjects during rest in the supine position and upon standing. Beat-to-beat time series of heart rate, systolic blood pressure and respiratory phase were extracted and transformed into binary symbol sequences. Words of length two that were reflective of baroreflex activity were statistically analysed with respect to the respiratory phase.<h4>Results</h4>Symbolic analysis showed a significant influence of the respiratory phase on the occurrence of baroreflex patterns. Upon standing, the frequency of baroreflex words increased and the effect of respiration appeared to be reduced.<h4>Conclusions</h4>Symbolic dynamics provide a simple representation of cardiovascular dynamics and may be useful for assessing baroreflex function.

School/Discipline

Dissertation Note

Provenance

Description

Access Status

Rights

Copyright © 2013 Elsevier Inc. All rights reserved.

License

Call number

Persistent link to this record