Plaque characteristics in patients with ST-segment elevation myocardial infarction and early spontaneous reperfusion

Background: Early spontaneous reperfusion (ESR) is not an uncommon phenomenon in clinical settings. Aims: To detect potential mechanisms of early spontaneous reperfusion in patients with STEMI. Methods: This prospective study enrolled a total of 241 consecutive patients with STEMI undergoing optical coherence tomography (OCT) from July 2016 to August 2019. Forty-five (18.7%) met angiographic ESR criteria (TIMI-3 flow on the initial angiogram). Among those without ESR (TIMI-0 flow on initial angiogram), 45 patients were assigned into the control group according to propensity score matching with the ESR group. Results: Although the group’s baseline characteristics were comparable, non-ruptured plaque ...
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