Conclusion
ST is a medical emergency that may be associated with death, myocardial infarction, and significant cardiac morbidity, which mainly requires revascularization.
This case emphasized IVUS as a highly useful modality for investigating the causal mechanisms of ST, as it reveals pathophysiologic factors underestimated by conventional angiography and identifies patients who may benefit from more additional coronary interventions, and it should be at the center of our attention.
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