Journal
JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY
Volume 68, Issue 25, Pages 2887-2899Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jacc.2016.09.973
Keywords
fractional flow reserve; instantaneous wave-free ratio; intravascular imaging; percutaneous coronary intervention
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Funding
- St. Jude
- Volcano
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A myocardial bridge (MB) is the term for the muscle overlying the intramyocardial segment of the epicardial coronary artery (referred to as a tunneled artery). Although MBs can be found in any epicardial artery, most of them involve the left anterior descending artery. These congenital coronary anomalies have long been recognized anatomically, and are traditionally considered a benign condition; however, the association between myocardial ischemia and MBs has increased their clinical relevance. This review summarizes the prevalence, pathophysiology, and diagnostic findings, including morphological, functional assessment, and treatment of patients with MB involving the left anterior descending artery, suggesting a pragmatic clinical approach to this entity. (C) 2016 by the American College of Cardiology Foundation.
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