superficial muscel bridge in mid LAD

[sanakhan1960]

dear doctor

i am 51 years old male. After CT angio test , though i had UN-obstructive coronaries, but it was mentioned in the final analysis that i have superficial muscle bridge in mid LAD.

i am little concerned about this finding. i have no symptoms at moment. i do brisk walk daily and enjoy it.

how serious is this finding and can it get worse with the passage of time

thanking you in anticipation

[kenkeith]

This forum has many members who have had experience with heart conditions, relate to the circumstances and therapy that is applicable. We are able to provide a perspective and an insight into the medical condition.

Normally, the coronary arteries are set in a groove on the surface of the heart, but a superficial bridge is an anomaly that has a short segment of bridging fibers covering and transversing part of the LAD's midportion.

The medical significance can be that the vessel cannot expand but it retains its constriction feature for regulating normal blood flow.  The vessel is compressed during pumping phase but recovers during the heart's resting phase, etc. The bridged portion of the vessel can be visualized during systole (pumping phase), when the bridging fibers contract and distort the vessel lumen (vessel channel).

Normal Coronary Anatomy and Anatomic Variations
David M. Fiss, MD
" Myocardial bridging has been associated with angina, myocardial infarction, and sudden death. Ironically, the bridged segment is rarely affected by atherosclerosis and can easily go unrecognized on cine arteriography as what otherwise appears to be a normal coronary artery"....the fact that it rarely causes atherosclerosis can indicate there will be no problems with occlusions, etc.  

If you don't have any symptoms such as chest pain, shortness of breath, fatigue, etc., the problem may be of little medical significance. No one can predict the future, but if you do have a problem later there is adequate treatment.

Thanks for your question, and if you have any further questions or comments you are invited to respond.  I wish you well boing forward, take care.

Ken