Title :
RR*QT coherence discriminates within situation-dependent, dual sympathetic drive to the heart in healthy young
Author :
Dinca-Panaitescu, S. ; Negoescu, R.M. ; Ionescu, D.-D. ; Filcescu, V.
Author_Institution :
Inst. of Hygiene & Public Health, Bucharest, Romania
fDate :
31 Oct-3 Nov 1996
Abstract :
The authors document, by opening regulatory loops using invasive manipulation, that the THM spectral fraction of beat-by-beat variability of the QT interval reflects in part sympathetic control to ventricles that can be separated from Bazell-like RR effects using RR*QT coherence analysis. This finding holds promise for more pertinent evaluation of RR and QT spectra derived form Holter high resolution ECG, in terms of arrhythmia risk stratification in both myocardial infarction patients and non-cardiac subjects with stress-dependent sporadic rhythm disturbances
Keywords :
electrocardiography; medical signal processing; neurophysiology; spectral analysis; Holter high resolution ECG; QT interval; QT spectra; RR spectra; RR*QT coherence; THM spectral fraction; arrhythmia risk stratification; beat-by-beat variability; electrodiagnostics; healthy young; invasive manipulation; myocardial infarction patients; noncardiac subjects; regulatory loops opening; situation-dependent dual sympathetic drive; stress-dependent sporadic rhythm disturbances; Aging; Drives; Electrocardiography; Heart rate interval; Human factors; In vitro fertilization; Open loop systems; Stress; Testing; Weight control;
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.1996.647563
