• Pabla Cataldo, Christian Dauvergne, Rafael Selman, Alfonso García, Manuel Duarte, Manuel Méndez, Fernando Pineda, Polentzi Uriarte, and Jorge Sandoval.
• Departamento de Cardiología, Instituto Nacional del Tórax, Santiago, Chile.
• Rev Med Chil. 2023 Sep 1; 151 (9): 125012541250-1254.

AbstractChest pain is one of the most frequent reasons for consultation in the emergency department. The most severe pathologies must be quickly ruled out within the diagnostic hypotheses: myocardial infarction (MI), aortic dissection, pulmonary thromboembolism, and pneumothorax. A frequent scenario is ST elevation MI due to a plaque accident. However, there are infrequent cases of aortic dissection associated with a deficit in coronary perfusion (malperfusion syndrome) that triggers a MI. The diagnosis of a double artery is difficult, with higher mortality and surgical complexity. We present the case of a 59-year-old man who presented chest pain and an electrocardiogram with inferior and anterior ST-segment elevation who was referred for primary angioplasty. The angiographic study confirmed the presence of a coronary ostium defect and suggested aortic dissection. Computed tomography angiography confirmed the diagnosis, showing the dissection of the ascending aorta with the compromise of both coronary ostia, which was subjected to surgical treatment.

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