Has anyone heard of a myocardial bridging over the left artery of the heart?

Question

Doctor did a arteriorgram on me an said I had a myocardial bridging over my left main artery ,he wants me to take beta blocker to keep area open but the ones i have tried has severe side affects. what are the dangers of just letting it go ?

Answer 1

Usually, the major coronary vessels lie in a layer of fat on the surface of the heart. There are a few indivicuals in which the course of the (usually) LAD dives into the heart muscle and for about a 1 cm lenfth follows a course in the heart muscle itself. Studies suggest, but are not conclusive that this can occasionally be the cause of sudden cardiac death. The hypothesis is that during high output situations, the cardiac muscle contracts around the vessel, and causes the blood flow through it to diminish or cease.

I have heard or read nothing of beta blockers being used to alleviate the chance of this happening. If it were my cardiologist, I would ask for a xerox copy of the literature advising of the use of beta blockers. I would base my decision on what I read, but many of the esoteric and odd findings, doctors just throw beta blockers at, since the pathophysiology of the disease if not known.

Best wishes.