Ischemic heart disease is the leading cause of death worldwide, as well as in Brazil. Its most severe presentation is the ST-segment elevation myocardial infarction (STEMI), for which early reperfusion constitutes the main therapy to decrease mortality. Although primary percutaneous coronary intervention (PCI) is considered the “gold standard” treatment for STEMI, it is not sufficiently available, and access to PCI is still unequal., The electrocardiogram (ECG) is the main tool for the early diagnosis of AMI and for the decision […]