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Type: Journal article
Title: Long-term correlations and fractal dimension of beat-to-beat blood pressure dynamics
Author: Baumert, M.
Baier, V.
Voss, A.
Citation: Fluctuation and Noise Letters, 2005; 5(4):L549-L555
Publisher: World Scientific Publishing Co. Pty. Ltd.
Issue Date: 2005
ISSN: 0219-4775
Statement of
Mathias Baumert; Vico Baier; Andreas Voss
Abstract: Arterial blood pressure is modulated by several physiological regulatory processes. The analysis of beat-to-beat blood pressure dynamics provides information about cardiovascular control and patho-physiological conditions. In this paper we investigated the long-term correlations and fractal dimension of systolic blood pressure time series applying detrended fluctuation analysis (DFA) and Higuchi's algorithm (HFD). Thirty-minute blood pressure recordings in 25 patients with dilated cardiomyopathy (DCM) and 27 healthy controls (CON) were analyzed. The DFA and HFD revealed multifractal features in the blood pressure dynamics of CON as well as of DCM. At small scales, DFA and HFD of CON were significantly different from those of CON, reflecting patho-physiological changes. In conclusion, scaling analysis of blood pressure dynamics might lead to an enhanced assessment of autonomic cardiovascular control in patients with DCM.
Description: © World Scientific Publishing Company
RMID: 0020073759
DOI: 10.1142/S0219477505003002
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Appears in Collections:Electrical and Electronic Engineering publications

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