A 50-year-old man has sudden onset of severe substernal chest pain that radiates to the neck....

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A 50-year-old man has sudden onset of severe substernal chest pain that radiates to the neck. On physicalexamination, he is afebrile, but has tachycardia, hyperventilation, and hypotension. No cardiac murmurs are heard on auscultation. Emergent coronary angiography shows a thrombotic occlusion of the left circumflex artery and areas of 50% to 70% narrowing in the proximal circumflex and anterior descending arteries. Which of the following complications of this disease is most likely to occur within 1 hour of these events? (A) Ventricular fibrillation (B) Pericarditis (C) Myocardial rupture (D) Ventricular aneurysm (E) Thromboembolis m A 50-year-old man has sudden onset of severe substernal chest pain that radiates to the neck. On physicalexamination, he is afebrile, but has tachycardia, hyperventilation, and hypotension. No cardiac murmurs are heard on auscultation. Emergent coronary angiography shows a thrombotic occlusion of the left circumflex artery and areas of 50% to 70% narrowing in the proximal circumflex and anterior descending arteries. Which of the following complications of this disease is most likely to occur within 1 hour of these events? (A) Ventricular fibrillation (B) Pericarditis (C) Myocardial rupture (D) Ventricular aneurysm (E) Thromboembolis m

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