Abstract
The paradigm of Occlusion Myocardial Infarction (OMI) has recently been introduced into clinical practice with the aim of improving the identification and treatment of patients with acute coronary syndromes. The current diagnostic approach to myocardial infarction, which is primarily based on the presence or absence of ST-segment elevation, is subject to significant limitations, often resulting in patients with occluded coronary arteries not receiving timely and appropriate therapy. For instance, in cases of non-ST-elevation myocardial infarction (NSTEMI), nearly one-third of patients are found to have complete or near-complete coronary occlusion on angiography. The OMI paradigm encompasses both classic (true) ST-elevation myocardial infarction cases and a subset of patients initially diagnosed with NSTEMI, in whom a specific ECG pattern indicative of coronary occlusion can be identified. This article provides a concise overview of the rationale behind the OMI concept and illustrates its practical application through representative ECG examples.