A 66-year-old man with a history of hypertension and hyperlipidemia presents with substernal chest burning that he felt was gastrointestinal related because it occurred shortly after lunch. However, antacids were without benefit. After 4 to 5 hours, he decided to go to an emergency room. Because of the ECG abnormalities and elevated serum troponin and creatine kinas-MB, he was brought to the cardiac catheterization laboratory. One-vessel disease (right coronary artery) was noted, and a percutaneous coronary intervention was performed.
What is the diagnosis?
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