Kellerova, E., Regecova, V., Katina, S., Titomir, L.I., Aidu, E.A., Trunov, V.G. and Szathmary, V. (2006) The effect of psychoemotional load on ventricular repolarization reflected in integral body surface potential maps. Physiological Research, 55(S1), S91-S105.
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Publisher's URL: http://www.biomed.cas.cz/physiolres/2006/suppl1.htm
Abstract
The aim of the present study was to investigate the reflection of psychoemotional stress in the body surface potential distribution as documented by isointegral maps of cardiac activation and recovery. In 72 young men (18.3+/- 7.3 y.) with no cardiovascular history body surface potential maps (BSPMs) at rest and during the test of mental arithmetic were recorded. The digitalized data for each point of the QRS, STT and QRST integral maps, for each subject in both situations, were processed and evaluated by methods of univariate as well as spatial mathematical and statistical modeling. The results showed during MA a significant decrease of repolarization integral values over the sternum and right precordium, which contributed to analogically localized decrements also in the QRST BSM. The decrease occurred in more than 2/3 of lead points. The most pronounced changes were observed in the right precordial area, where potentials decreased in more than in 70 % of subjects. In conclusion, the discriminative power of the difference STT and QRST integral maps was strong enough to distinguish the mental arithmetic induced changes in the superficial cardiac electric field. These adrenergic transient alterations in ventricular recovery may be of importance in subjects at risk for ventricular arrhythmias.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Katina, Dr Stanislav |
| Authors: | Kellerova, E., Regecova, V., Katina, S., Titomir, L.I., Aidu, E.A., Trunov, V.G., and Szathmary, V. |
| Subjects: | Q Science > QA Mathematics R Medicine > R Medicine (General) |
| College/School: | College of Science and Engineering > School of Mathematics and Statistics > Statistics |
| Research Group: | Statistical Modelling |
| Journal Name: | Physiological Research |
| Journal Abbr.: | Physiol Res |
| Publisher: | Institute of Physiology, Academy of Sciences of the Czech Republic |
| ISSN: | 0862-8408 |
| Published Online: | 22 December 2006 |
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