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- Title
Fractal dimension in health and heart failure.
- Authors
Beckers, Frank; Verheyden, Bart; Couckuyt, Kurt; Aubert, André E.
- 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 (ns21) and an end-stage heart failure population (ns21) 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.
- Publication
Biomedical Engineering / Biomedizinische Technik, 2006, Vol 51, Issue 4, p194
- ISSN
0013-5585
- Publication type
Article
- DOI
10.1515/BMT.2006.035