Figure 1.

Case 1: Acute Stent Thrombosis

(A) Electrocardiogram at admission showing lateral ST-segment elevation myocardial infarction. (B) Electrocardiogram 30 min after circumflex percutaneous coronary intervention showing posterior ST-segment elevation myocardial infarction. (C) Ramus occlusion (+) and 2 critical lesions (asterisks) in the proximal circumflex artery and first marginal branch. (D) Final result after percutaneous coronary intervention of ramus (arrowhead) and circumflex arteries (dotted line indicates the position of 2 overlapped drug-eluting stents). (E) Stent thrombosis, with haziness at the (a) proximal and (d) distal edge, as well as (c) at the bifurcation. (F) Final result after stent thrombosis treatment, with complete flow restored. (a to d),optical coherence tomography imaging showing (a) no compromise of the proximal edge, (b) mild proximal underexpansion of stent with mixed thrombus, which can also be observed (c) in the origin of the second marginal branch and (d) near the distal edge, which has (e) mild dissection.