Title :
Instrumentation for autonomic evaluation in a neurocardiology laboratory
Author :
Hernández, A. ; Mora, F. ; Hernández, M.I. ; Passariello, G. ; Carrault, G.
Author_Institution :
Simon Bolivar Univ., Caracas, Venezuela
fDate :
31 Oct-3 Nov 1996
Abstract :
Neurocardiology laboratories must have means to quantify and characterize neurally mediated cardiovascular responses. Specific instrumentation is needed to acquire and analyze the appropriate set of cardiorEspiratory signals, and to obtain from them autonomic information. A complete instrumentation scheme for autonomic nervous system evaluation, according to its effects on heart rate, myocardial contractility and atrio-ventricular conduction delay is presented. Autonomic indexes of these effects are calculated for each beat from three signals, simultaneously acquired: the electrocardiogram (ECG), the impedance cardiogram (ICG) and the esophageal electrocardiogram (EECG). Time series of the P-P, P-K and peak ejection velocity variability are provided, The system has been tested in a neurocardiology laboratory and used so far in more than 20 subjects
Keywords :
biocontrol; electrocardiography; medical signal processing; neurophysiology; atrio-ventricular conduction delay; autonomic indexes; autonomic information; autonomic nervous system evaluation; beat; cardiorespiratory signals; complete instrumentation scheme; esophageal electrocardiogram; heart rate; impedance cardiogram; instrumentation; myocardial contractility; neurally mediated cardiovascular responses; neurocardiology laboratory; peak ejection velocity variability; time series; Autonomic nervous system; Cardiology; Delay effects; Electrocardiography; Heart rate; Information analysis; Instruments; Laboratories; Myocardium; Signal analysis;
Conference_Titel :
Engineering in Medicine and Biology Society, 1996. Bridging Disciplines for Biomedicine. Proceedings of the 18th Annual International Conference of the IEEE
Conference_Location :
Amsterdam
Print_ISBN :
0-7803-3811-1
DOI :
10.1109/IEMBS.1996.647589