Abstract
Coronary artery spasm is an infrequently recognized condition that causes Prinzmetal's angina and specific electrocardiographic changes. A 50-year-old man who suffered a spontaneously aborted acute inferior myocardial infarction is presented. He underwent cardiac catheterization, which initially showed a normal coronary artery. The coronary angiogram was repeated shortly after a second presentation of acute coronary syndrome and ventricular fibrillation. Coronary spasm of very proximal right coronary artery was present, which was reversed completely with intracoronary nitroglycerin. The spasm segment was first stented. Subsequently, an automatic implantable cardioverter defibrillator was inserted because of the uncertainty of future spasm recurrence. The patient was discharged with oral isosorbide dinitrate and Amlodipine. In further follow-up, the patient had two separate shocks within 4 months of implantation. Ventricular fibrillation was the trigger for the shock therapy in both occasions.
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