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A 57-year-old man presented with a sudden onset of chest pain, which suggested the possibility of myocardial infarction. Coronary angiography revealed a myocardial bridge in the left anterior descending coronary artery. The myocardial bridge decreased the diameter of the artery substantially during systole (Panel A, with arrow pointing to myocardial bridge). Optical coherence tomography showed no evidence of atherosclerosis but did show vessel patency during diastole (Panel B) and collapse during systole (Panel C). A myocardial bridge is a band of myocardial tissue overlying a segment of epicardial coronary artery. Myocardial bridging is a congenital abnormality that typically occurs in . . . [Full Text of this Article] |
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