This case highlights the potential for myocardial bridging to be associated with proximal atherosclerotic plaque and acute myocardial infarction due to thrombosis in a young adult.
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Should not yet change AMI evaluation; hypothesis-generating for bridging-plaque thrombosis in young adults.
A 28-year-old man was admitted because of chest pain. Emergency coronary angiography showed a massive thrombus in the proximal segment and another occlusive thrombus in the distal segment of the left anterior descending artery. He was treated with thrombolytic therapy. Repeat coronary angiography showed disappearance of the thrombi in the proximal and distal segments and obvious myocardial bridging in the mid segment. Intravascular ultrasound revealed an atherosclerotic plaque in the segment immediately proximal to the myocardial bridging, but did not reveal any plaque within or distal to the site. He was discharged 12 days later.
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Kurisu et al. (2004) studied this question.
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