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Los Angeles, CA
March 31, 2009 to April 2, 2009
ISBN: 978-0-7695-3507-4
pp: 221-225
ABSTRACT
The period-2 rhythm so called as “Alternans” is an arrhythmia exhibiting alternating amplitude or alternating interval from heartbeat to heartbeat, which was first described in 1872 by Traube. Recently, Alternans was finally recognized as the harbinger of a cardiac disease, because physicians noticed that an ischemic heart exhibits Alternans. To quantify irregularity of the heartbeat, including Alternans, we used the detrended fluctuation analysis (DFA). We revealed that in both, animal models and humans, the Alternans rhythm lowers the scaling exponent.  With the scaling exponents calculation by the DFA it might be possible to find out a reliable sign for a risk for the “failing” heart.
INDEX TERMS
Heartbeat, Alternans, DFA, Scaling exponent, Animal model
CITATION
Toru Yazawa, Tomoo Katsuyama, "Alternans Lowers the Scaling Exponent of Heartbeat Fluctuation Dynamics: A Detrended Fluctuation Analysis in Animal Models and Humans", CSIE, 2009, 2009 WRI World Congress on Computer Science and Information Engineering, CSIE, 2009 WRI World Congress on Computer Science and Information Engineering, CSIE 2009, pp. 221-225, doi:10.1109/CSIE.2009.784
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