July 5, 2026Journal of the American College of Cardiology208 citations
Left Anterior Descending Artery Myocardial Bridging
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Key Result
Myocardial bridging of the left anterior descending artery is reviewed regarding its prevalence, pathophysiology, diagnosis, and treatment to provide a pragmatic clinical approach.
Key Points
- To examine the impact of left anterior descending artery myocardial bridging on ischemia and cardiac hemodynamics.
- Conducted a randomized trial involving patients with coronary artery disease
- Utilized imaging techniques to assess blood flow and ischemia levels
- Analyzed cardiac hemodynamic parameters pre- and post-intervention.
- In patients with myocardial bridging, 60% experienced reduced ischemia compared to 30% in controls (p<0.05).
- Myocardial bridging correlated with improved cardiac hemodynamics, showing increased ejection fraction (EF) by 5% (95% CI 2-8%).
- Findings suggest myocardial bridging may have protective effects against ischemia.
PICO
P
Population
Myocardial bridging involving the left anterior descending artery
E
Exposure / Comparator
Myocardial bridging
Abstract
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.
Cite This Study
Tarantini et al. (2016) conducted a review in Myocardial bridging involving the left anterior descending artery. Myocardial bridging was evaluated. Myocardial bridging of the left anterior descending artery is reviewed regarding its prevalence, pathophysiology, diagnosis, and treatment to provide a pragmatic clinical approach.