Korean J Thorac Cardiovasc Surg.
1998 Dec;31(12):1238-1242.
Supraarterial Myotomy for Myocardial Bridges: Two Cases Report
- Affiliations
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- 1Department of Thoracic and Cardiovascular Surgery, Masan Samsung Hospital, College of Medicine, Sungkyunkwan university Masan, Korea.
- 2Department of Internal Medicine, Masan Samsung Hospital, Masan Samsung Hospital, College of Medicine, Sungkyunkwan university Masan, Korea.
Abstract
- Myocardial bridges as an anatomical arrangement in which an epicardial coronary artery becomes engulfed, for a limited segment, by myocardial fibers. These diseases are recognized primarily because of their systolic narrowing or milking effect as seen on coronary angiography. The most frequent site of myocardial bridging is the middle segment of left anterior descending artery. Myocardial bridges have an ischemic effect capable of causing : angina pectoris, myocardial infarction, ventricular fibrillation, or even sudden death in athletes. We report 2 patients having a milking effect of the middle segment of left anterior descending artery who were suffered from angina. The operation procedure was a simple supraarterial myotomy over the embedded segment of the LAD under cardiopulmonary bypass. Angina and milking effect were disappeared after the operation.
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