QRS broadening due to terminal distortion is associated with the size of myocardial injury in experimental myocardial infarction
INTRODUCTION: Not only repolarization, but also depolarization ECG indexes reflect the progression of ischemic injury. The aim was to assess the QRS duration and morphology dynamics during the prolonged coronary occlusion and their association with the myocardial area at risk (MaR) and final infarct size (IS).METHODS: In pigs, myocardial infarction was induced by inflation of an angioplasty balloo