Title :
Usefulness of high resolution electrocardiogram and heart rate variability in chronic Chagas disease
Author :
Jugo, D. ; Carrasco, Hector ; Medina, Roberto ; Castillo, Claris
Author_Institution :
Grupo de Ingenieria Biomed., Univ. de Los Andes, Merida
Abstract :
With the purpose of studying the correlation between 9 clinical, electrocardiographic and hemodynamic variables, and the presence of late potentials (LP) or heart rate variability (HRV) abnormalities, 20 control subjects (C) and 48 chronic chagasic patients subdivided according to their degree of myocardial damage were submitted to clinical evaluation. Results indicate a progressive reduction of sympathetic tone, related to deterioration of the ejection fraction, and correlation between the presence of LP and the clinical classification applied to patients
Keywords :
electrocardiography; haemodynamics; medical signal processing; chronic Chagas disease; chronic chagasic patients; clinical classification; clinical evaluation; control subjects; ejection fraction; heart rate variability abnormalities; hemodynamic variables; high resolution electrocardiogram; late potentials; myocardial damage; sympathetic tone reduction; Analysis of variance; Cardiac disease; Cardiovascular diseases; Echocardiography; Electrocardiography; Heart rate variability; Hemodynamics; Myocardium; Spectral analysis; Statistical analysis;
Conference_Titel :
Engineering in Medicine and Biology Society, 1995., IEEE 17th Annual Conference
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-2475-7
DOI :
10.1109/IEMBS.1995.575057
