Wellen's syndrome, a STEMI equivalent, is associated with severe stenosis of the proximal left anterior descending (LAD) in a patient with chest pain who needs emergency coronary angiography with the possibility of intervention. Due to only T wave changes in the electrocardiograph (ECG), Wellen's syndrome was easily ignored. Moreover, it may progress to acute myocardial infarction or even cardiac arrest. Therefore, clinicians should improve their understanding of this ECG pattern and appropriately dilate the coronary angiography indication. In addition, more dangerous narrowing of a coronary artery, as in our case, the left main artery stenosis, should also be considered.

中文翻译：

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韦伦综合症的罕见病例

Wellen 综合征，相当于 STEMI，与胸痛患者的近端左前降支 (LAD) 严重狭窄有关，需要紧急冠状动脉造影并可能进行干预。由于心电图（ECG）中只有T波变化，韦伦综合征很容易被忽视。而且，还可能进展为急性心肌梗死，甚至心脏骤停。因此，临床医生应提高对此心电图模式的认识，适当扩大冠状动脉造影指征。此外，还应考虑更危险的冠状动脉狭窄，如本例中的左主动脉狭窄。