Dynamic and fractal non-linear changes of heart rate variability in patients with coronary heart disease (CROSBI ID 572455)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Krstačić, Goran ; Krstačić, Antonija ; Martinis Mladen ; Vargović, Emil ; Jembrek-Gostović, Mirjana
engleski
Dynamic and fractal non-linear changes of heart rate variability in patients with coronary heart disease
The article emphasizes clinical and prognostic significance of non-linear measures of the heart rate variability, applied on the group of patients with coronary heart disease (CHD) and age-matched healthy control group. Three different methods were applied: Hurst exponent (H), Detrended Fluctuation Analysis (DFA) and approximate entropy (ApEn). Hurst exponent of the R-R series was determined by the range rescaled analysis technique. DFA was used to quantify fractal long-range-correlation properties of heart rate variability. Approximate entropy measures the unpredictability of fluctuations in a time series. It was found that the short-term fractal scaling exponent (α 1) is significantly lower in patients with CHD (1.07 ± ; ; ; 0.04 vs. 1.34 ± ; ; ; 0.07 ; p < 0.001). The patients with CHD had lower Hurst exponent in each program of exercise test separately, as well as aproximate entropy than healthy control group (P < 0.001).
non-linear dynamics;
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Podaci o prilogu
2003.
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objavljeno
Podaci o matičnoj publikaciji
Proceedings of Computer ; Communication and Control Technologies / Hsing-Wei, Chu ; Ferrer, Jose ; Pineda, Juan M. (ur.). - Orlando, USA : CCCT , 2003. 45-49.
Orlando (FL):
Podaci o skupu
International Conference on Computer, Communication and Control Technologies CCCT '03
poster
31.07.2003-02.08.2003
Orlando (FL), Sjedinjene Američke Države