Prognostic importance of dispersion of interval Q-T electrocardiograms in patients with myocardial infarction

• Main Authors: A. T. Teplyakov, D. Yu. Kamaev, V. V. Kalyuzhin, Ye. Yu. Pushnikova, Ye. V. Kalyuzhina, T. A. Stepacheva
• Format: Article
• Language: English
• Published: Siberian State Medical University (Tomsk) 2006-03-01
• Series: Bûlleten' Sibirskoj Mediciny
• Subjects: myocardial infarction; dispersion of interval q-t; prediction
• Online Access: https://bulletin.tomsk.ru/jour/article/view/3050

The aim of research was comparison of prognostic importance of various indexs non-homogeneousness of processes repolari-zations of heart ventricles registered in acute and subacute periods of myocardial infarction (MI). The retrospective analysis of med-ical histories has allowed to determine dynamics of dispersion of intervals Q-T, Q-Ta and R-Tm in groups of patients with fa-vourable (n = 125) and lethal (n = 250) outcome. The best prognostic importance concerning fatal cardial events have indexs cor-rected on frequency of cardiac rhythm. Most important and independent predictor of intrahospital cardial deaths of the patients with MI is a dispersion of the corrected interval R-Tm, exceeding 80 мс1/2 in the first 6 hours after hospitalization.