Ascending aortic dissection presented as inferior myocardial infarction: a clinical and diagnostic mimicry

Acute ST segment elevation myocardial infarction (STEMI) is typically associated with acute coronary thrombosis or plaque rupture. Rarely, STEMI can be associated with ascending aortic dissection, which represents the majority of acute aortic syndrome aetiologies and carries dreadful outcomes. Routine cardiac intervention with emergent cardiac catheterisation may lead to a higher mortality rate in this group of patients. We present a case of painless inferior STEMI in the setting of ascending aortic dissection. The patient had an inferior STEMI due to the involvement of the right coronary artery as an extension of the ascending aortic dissection. In this era of protocol-driven practice and the pressure to fulfil quality measures, we aim to alert emergency physicians, cardiologists and interventionalists of the possible presentation of painless ascending aortic dissection as an STEMI. The two pathologies characterise by crucial differences in their initial and ultimate management.

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