ANTERO-SEPTAL AKINESIA AMI RADIAL STRAIN
Anteroseptal ST elevation myocardial infarction (AS-STEMI), in which ST elevation is limited to leads V(1) to V(3), is considered confined to the basal and mid anterior and septal segments, sparing the apex. In contrast, extensive anterior STEMI (EA-STEMI), in which ST elevation extends to leads V(4) to V(6), is considered to involve more apical segments. However, it has been reported that AS-STEMI affects mainly the apex. Others have suggested that AS-STEMI may occur in patients with extensive anterior involvement if proximal occlusion of a wrapping left anterior descending coronary artery (LAD) results in cancelation of the basal-anterior and apical injury vectors. Therefore, the aim of this study was to identify, in 97 consecutive patients with STEMI, distinct coronary angiographic characteristics that could differentiate between cases of AS-STEMI (n = 39) and EA-STEMI (n = 58). Angiography was used to determine the length of the LAD, its site of occlusion, and whether there was an
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