Title :
RR-independent 0.1 Hz power in QT spectrum indexes myocardial adrenergic strain by both emotional and attention stress
Author :
Dinca-Panaitescu, S. ; Ciurea, M. ; Achim, Alin ; Negoescu, R.
Author_Institution :
Department of Bioengineering, Institute of Hygiene & Public Health; AISTEDA University, Bucharest, Romania
fDate :
Oct. 30 1997-Nov. 2 1997
Abstract :
We document that the idioventricular 0.1 Hz spectral fiaction of beat-by-beat variability of QT interval reflecting sympathetic control to ventricles tracks absolute myocardial strain under both emotional and attention stress. This study also suggests an adrenergic mechanism involved in 0.1 Hz QT power response to mental stress.
Keywords :
electrocardiography; medical signal processing; neurophysiology; psychology; spectral analysisiography; 0.1 Hz; QT spectrum; RR-independent 0.1 Hz power; absolute myocardial strain; adrenergic mechanism; attention stress; electrodiagnostics; emotional stress; idioventricular 0.1 Hz spectral fraction; mental stress; myocardial adrenergic strain; sympathetic control; ventricles;
Conference_Titel :
Engineering in Medicine and Biology Society, 1997. Proceedings of the 19th Annual International Conference of the IEEE
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-7803-4262-3
DOI :
10.1109/IEMBS.1997.754536
