Predictive role of ventricular repolarization parameters for the occurrence of complete heart block in patients undergoing transcatheter aortic valve implantation

Abstract

Background: We investigated the role of ventricular repolarization parameters to predict complete atrioventricular block in patients undergoing transcatheter aortic valve implantation (TAVI). Methods: A total of 150 patients undergoing TAVI due to severe aortic stenosis were included in this retrospective cohort study. Patients were assigned in two groups based on the presence (n: 49) or absence (n: 101) of complete atrioventricular block after TAVI. Ventricular repolarization intervals (QT, QTc, JT, JTc, TP-E), indices (QT dispersion), and ratios (TP-E/QT, TP-E/QTc, TP-E/JTc) were measured. Results: Electrocardiographic repolarization parameters such as Tp-e interval: 74.2 ± 5.1 versus 59.2 ± 6.1 ms, p