Title :
Non-linear dynamics in heart rate variability of normal subjects and chagasic patients
Author :
Guillén, P. ; VallverdÙ, M. ; Jugo, D. ; Carrasco, H. ; Caminal, P.
Author_Institution :
Centre de Reserca en Enginyeria Biomed., Univ. Politecnica de Catalunya, Barcelona, Spain
Abstract :
Tachograms of two groups, one consisting of 15 chagasic patients (Group II) and the second group consisting of 18 healthy persons as a control group, were investigated. The tachograms (R-R intervals) were obtained from high resolution ECG. Statistical analysis of the first Lyapunov exponent and complexity changes through symbolic dynamics showed that parameters obtained from non-linear analysis could be used to discriminate between chagasic patients and healthy persons
Keywords :
diseases; electrocardiography; medical signal processing; statistical analysis; R-R intervals; chagasic patients; complexity changes; electrodiagnostics; first Lyapunov exponent; healthy persons; heart rate variability; high resolution ECG; nonlinear dynamics; normal subjects; symbolic dynamics; Autonomic nervous system; Biomedical measurements; Cardiac disease; Cardiology; Cardiovascular diseases; Chaos; Electrocardiography; Heart rate variability; Myocardium; Nonlinear dynamical systems;
Conference_Titel :
Engineering in Medicine and Biology Society, 2000. Proceedings of the 22nd Annual International Conference of the IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-6465-1
DOI :
10.1109/IEMBS.2000.901285
