The significance of T-wave inversion in sinus beats following ventricular extrasystoles |
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| Authors: | MANN R H BURCHELL H B |
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| Affiliation: | 1. Faculty of Psychology, University of Valencia, Spain;2. Kazan Federal University, Russia;3. Faculty of Health Sciences, Anahuac University, Mexico;4. El Bosque University, Colombia;5. University of Chile, Chile;6. University of Valencia, Spain;7. University of Žilina, Slovakia;8. Technological Institute of Santo Domingo (INTEC), Dominican Republic;9. Malaysian Institute of Road Safety Research (MIROS), Malaysia;10. Department of Technology, Management and Economics, Technical University of Denmark (DTU), Denmark;11. University of Leeds, UK;12. CERIS – Technical Superior Institute, University of Lisbon, Portugal;13. Kazan Federal University;14. Universidad Tecnológica de Bolívar, Colombia;15. Monash University Accident Research Centre (MUARC), Australia;p. College of Transportation Engineering, Chang''an University, China;q. Digital Geography Lab, Faculty of Science, University of Helsinki, Finland;r. Technical University of Wien (TU, Wien), Austria;s. Ghent University, Belgium;t. Transportation Research Group, University of Southampton, United Kingdom;1. Department of Cardiology, Copenhagen University Hospital – Rigshospitalet, Denmark;2. Department of Cardiology, Copenhagen University Hospital – Herlev and Gentofte, Denmark;3. Department of Cardiology, Zealand University Hospital – Roskilde, Denmark;4. Faculty of Health and Medical Sciences, University of Copenhagen, Denmark |
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| Abstract: | Heart disease was present in 93 per cent of a series of forty-six patients encountered at the Mayo Clinic who had inversion of the T waves in the sinus beats following ventricular extrasystoles. In 63 per cent of these patients, the electrocardiograms were otherwise normal or showed only minor associated abnormalities.The incidence of heart disease in a control group of patients, matched in regard to age and sex with the above group, who had frequent ventricular extrasystoles without changes in the T waves, was 57 per cent.Four patients who had bundle branch block showed normal intraventricular conduction with inversion of the T waves in the sinus beats immediately following ventricular extrasystoles.One patient who had dystrophia myotonica showed electrocardiographic abnormalities as well as inversion of the T waves following ventricular extrasystoles. |
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