Title :
Clinical inquiry & computer simulation of RR-QT system suggest functional long QT episodes in borderline subjects
Author :
Dinca-Panaitescu, S. ; Ionescu, D.-D. ; Achim, A. ; Dinca-Panaitescu, M. ; Negoescu, R.
Author_Institution :
Dept. of Cardiovascular Prophylaxy, Aisteda Univ., Romania
fDate :
29 Oct-1 Nov 1998
Abstract :
We report direct experimental estimations of time constant in RR-QT system (τQT) using pharmacological or electrophysiological manipulations of heart rate (HR). We find by means of using computer simulation that τQT size may be introduced in borderline subjects (QTc>450 ms for males) under current life stress episodes of functional long QT with “risk surface” comparable with that of patently long QT patients
Keywords :
electrocardiography; medical signal processing; time series; RR-QT system; borderline subjects; clinical inquiry; computer simulation; electrophysiological manipulation; functional long QT episodes; heart rate; life stress episodes; pharmacological manipulation; right atrial pacing; risk surface; thoracic ECG; time constant estimation; time series; vagal blockade; Biomedical informatics; Cardiology; Cardiovascular diseases; Computer simulation; Diabetes; Heart rate; Life estimation; Public healthcare; Silicon compounds; Stress;
Conference_Titel :
Engineering in Medicine and Biology Society, 1998. Proceedings of the 20th Annual International Conference of the IEEE
Conference_Location :
Hong Kong
Print_ISBN :
0-7803-5164-9
DOI :
10.1109/IEMBS.1998.745885
