Abstract
A 28-year-old woman presented to the emergency department for evaluation of acute chest pain. She lacked risk factors for coronary artery disease and her initial electrocardiogram (ECG) was nondiagnostic. Within 45 minutes of presentation she developed nausea, vomiting, restrosternal chest pain, and ECG changes comptible with an acute inferoposterior myocardial infarction. Emergent cardiac catheterization revealed three-vessel coronary artery ectasia and two-vessel occlusion. She underwent emergency coronary artery bypass grafting. Her myocardial ischemia was believed to have been induced by methergine, which she had been taking over the preceding 3 days. The etiology and pathophysiology of coronary artery ectasia, as well as the cardiovascular effects of methergine and a related drug, ergotamine, are discussed.
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