Paper ID sheet UCL-INMA-1999.901


Nonlinear analysis of cardiac rhythm fluctuations using DFA method

P.-A. Absil, R. Sepulchre, A. Bilge, P. Gérard
After a brief overview of classical techniques used to explore cardiac rhythm variability, we show how the DFA method can help diagnose heart failure. Our clinical study reveals that the DFA $\alpha$ coefficient of the cardiac rhythm is an efficient predictor of the future health of patients suffering from Congestive Heart Failure. Moreover, we introduce a new coefficient which measures the scale invariance in the cardiac rhythm. This new coefficient appears to be related to the subsequent evolution of the patients.
Key words
published in Physica A: Statistical Mechanics and its Applications (272) 1-2 (1999) pp. 235-244, 1 October 1999
Further information
Version française publiée dans le Bulletin Scientifique de l'Association des Ingénieurs Electriciens sortis de l'Institut d'Electricité Montefiore, volume 3, 1998: [ps], [pdf].