TY - CONF
T1 - Non-linear dynamic analysis of beat-to-beat interactions of heart rate and mean arterial pressure
T2 - 6th National Congress on Theoretical and Applied Mechanics
AU - Sandu-Giuraniuc, Anca-Larisa
AU - Matthys, Koen
AU - Kalmar, Alain
AU - Segers, Patrick
AU - Verdonck, Pascal
N1 - Anca Larisa Sandu is a Master student at the “Al. I. Cuza” University, Iasi, Romania, and a recipient of a Socrates Grant for a stage at University of Gent. Koen Matthys is a recipient of a specialization grant of the Institute for the Promotion of Innovation by Science and Technology in Flanders (IWT-993175). Patrick Segers is a recipient of a post-doctoral grant from the Fund for Scientific Research in Flanders (FWO-Vlaanderen).
PY - 2003/5/26
Y1 - 2003/5/26
N2 - Heart rate and blood pressure variability may provide important diagnostic information for the assessment of cardiovascular risk. The interactions between heart rate and blood pressure are complex and strongly non-linear. In this paper, we apply the method of joint symbolic dynamics (JSD), a new short term non-linear analysis method to investigate the interactions between heart rate (HR) and mean arterial pressure (MAP). Continuous (30 to 90 min) non-invasive electrocardiogram (ECG) and invasive blood pressure (BP) recordings (radial artery) were done in 2 patients during surgery, where sufficiently long recordings of ECG and BP are readily available. Time series of beat-to-beat HR and MAP changes were transformed off-line into a bivariate symbol vector. This symbol vector was transformed into a word series (a word consisting of three and four successive symbols), and the probability of occurrence of each word type was calculated and compared between both patients. Joint symbolic dynamics turned out to be a fairly easy-to-use and innovating approach to the study of HR and MAP interactions, provided that the necessary computing power for post-processing of lengthy data sets is available.
AB - Heart rate and blood pressure variability may provide important diagnostic information for the assessment of cardiovascular risk. The interactions between heart rate and blood pressure are complex and strongly non-linear. In this paper, we apply the method of joint symbolic dynamics (JSD), a new short term non-linear analysis method to investigate the interactions between heart rate (HR) and mean arterial pressure (MAP). Continuous (30 to 90 min) non-invasive electrocardiogram (ECG) and invasive blood pressure (BP) recordings (radial artery) were done in 2 patients during surgery, where sufficiently long recordings of ECG and BP are readily available. Time series of beat-to-beat HR and MAP changes were transformed off-line into a bivariate symbol vector. This symbol vector was transformed into a word series (a word consisting of three and four successive symbols), and the probability of occurrence of each word type was calculated and compared between both patients. Joint symbolic dynamics turned out to be a fairly easy-to-use and innovating approach to the study of HR and MAP interactions, provided that the necessary computing power for post-processing of lengthy data sets is available.
KW - heart rate variability
KW - blood pressure variability
KW - joint symbolic dynamics
KW - cardiac mechanics
UR - https://www.researchgate.net/publication/237011048_Non-linear_dynamic_analysis_of_beat-to-beat_interactions_of_heart_rate_and_mean_arterial_pressure_a_feasibility_study
M3 - Other
Y2 - 26 May 2003 through 27 May 2003
ER -