0025: Evaluation of corrected QT and QT dispersion changes in acute ST-elevation myocardial infarction after primary percutaneous coronary intervention

BackgroundQT dispersion (Qtd) is defined as the difference between the maximal and the minimal values of the QT through the peripheral and precordial leads. It is considered as an arrhythmogenic indice. Since STEMI is associated with arrhythmias and cardiac arrest the aim of this study was to investigate the effect of revascularization on corrected QT (QTc) and QtdMethodsWe conducted a retrospective study in which patients presenting with acute STEMI who underwent primary percutaneous coronary intervention (PCI) were enrolled. Qtc and Qtd were calculated before, 90 minutes after, and 24 hours after the procedure.Results54 patients (49 males, 5 females) with a mean age of 55,2 years were evaluated. The results showed significant reduction in both Qtc (451,4ms vs 441,2ms; p<0.001) and Qtd (59,8ms vs 34,1ms, p