
Figure 1
12-lead ECG of Case 1 showing ST-elevation in lead aVR with diffuse ST-depression in leads I, II, III, aVF and V2–V6, suggesting global subendocardial ischaemia or critical left main/proximal LAD occlusion. ECG, electrocardiogram; LAD, left anterior descending.

Figure 2
12-lead ECG of Case 2 showing ST-segment elevation in the septo-apical (V2–V5) and high lateral (I, aVL) territories consistent with proximal LAD occlusion. ECG, electrocardiogram; LAD, left anterior descending.

Figure 3
(A) Coronary angiography (Case 2) before PCI: subocclusive stenosis of the proximal LAD with intraluminal thrombus in the mid-LAD and at the ostium of the first diagonal branch (D1). The right coronary artery and left circumflex artery were angiographically normal. No evidence of coronary spasm or dissection. (B) Coronary angiography (Case 2) after PCI: restoration of TIMI 3 flow in the LAD territory with significant reduction of thrombus burden following thrombus aspiration and balloon angioplasty. LAD, left anterior descending; PCI, percutaneous coronary intervention.