What does myocardial bridge mean?

Myocardial bridging is a developmental abnormality in which myocardial fibers develop abnormally and cover the coronary arteries of the heart as if they were bridges. Myocardial bridging occurs as a result of congenital anatomical variations of the coronary arteries. During fetal growth and development, abnormalities occur in the cells, which affect the tissue or organ structure, and later worsen gradually with age. Some of the mild conditions usually do not have obvious symptoms, and the more serious ones may have chest tightness, angina, cardiac arrest and other sensations during the attack. At present, there is no special treatment for myocardial bridges in the clinic. In case of an acute attack, the main treatment is to use beta-blockers such as metoprolol to improve the blood flow of the heart, and after the acute attack is relieved, coronary artery bypass grafting surgery or interventional therapy is feasible.