Acute ST-Segment Elevation Myocardial Infarction during Stress Testing: First Presentation of an Undiagnosed Case of Essential Thrombocytemia

Abstract

Essential thrombocythemia (ET), a myeloid stem cell clonal disorder, can clinically present with variable manifestations including vasomotor symptoms, hemorrhage or thrombotic events.  Acute coronary syndromes specifically ST-segment elevation myocardial infarction (STEMI) is an uncommon event in ET patients. We report the case of a 43-year-old male presenting with a STEMI while performing a routine exercise stress test requested for atypical chest pain evaluation. Urgent coronary angiography demonstrated total occlusion of proximal right coronary artery that was successfully treated with percutaneous coronary angioplasty and stent deployment without adverse events or complications