Fig. 1.

STE and NSTE acute coronary syndrome (STEACS and NSTEACS) are syndromes without a sharp contrast: properties overlap and differences are gradual. Prevalence: NSTEACS occurs slightly more often than STEACS [44]; multivessel disease: NSTEACS patients have slightly more often multivessel disease [44]; infarct-related artery occluded: this occurs more often in STEACS patients but also in a considerable percentage of NSTEACS patients [26, 28–31]; transmural infarction: this occurs more often in STEACS patients but also in a considerable percentage of NSTEACS patients [12]; ECG after 3 min of balloon occlusion: in elective PCI, only a slight majority of ECGs after 3 min of complete occlusion shows ST elevation [17]