Title: Fractal dimension in health and heart failure
Authors: Beckers, Frank ×
Verheyden, Bart
Couckuyt, Kurt
Aubert, André #
Issue Date: Jan-2006
Series Title: Biomedizinische Technik. Biomedical engineering vol:51 issue:4 pages:194-7
Abstract: BACKGROUND: Non-linear analysis of heart rate variability (HRV) can give additional information about autonomic control of the heart rate. This study applied the fractal dimension (FD) in a congestive heart failure (CHF) population. METHODS: FD and HRV were evaluated in a healthy population (n=21) and an end-stage heart failure population (n=21) using 1-h segments during the day and night from Holter recordings. RESULTS: CHF patients presented a loss of circadian variation in both FD and conventional time- and frequency-domain HRV indices. FD was higher in the CHF population both during the day and night. In the CHF population the correlation between FD and high-frequency power of HRV was lost. CONCLUSION: Day-night variations of heart rate fluctuations are lost in heart failure. Changes in FD reflecting physiological and pathophysiological changes were observed.
ISSN: 0013-5585
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Experimental Cardiology
× corresponding author
# (joint) last author

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