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A young man had an impending acute myocardial infarction while playing soccer. Chest pain and anterior ST-segment elevation lasted 3 hours despite anti-ischemic medication, including streptokinase thrombolysis. An electrocardiogram recorded after the symptoms had passed was normal. There was a minimal increase in cardiac enzyme levels, and a pyrophosphate scan and echocardiogram were normal. Coronary...
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