Improvement of the frontal QRS-T angle after successful percutaneous coronary revascularization in patients with chronic total occlusion.

Background: The QRS-T angle (QRS-Ta) is a novel marker of myocardial repolarization heterogeneity which is related to adverse cardiovascular events. Our aim in this study was to investigate the effect of successful percutaneous coronary intervention (PCI) on frontal QRS-Ta in patients with chronic total occlusion (CTO).

Materials And Methods: A total of 132 patients undergoing PCI for CTO were included in this study.