Long myocardial bridging in the left anterior descending artery causing acute coronary syndrome

Authors

Abstract

Coronary arteries usually run along the outer surface of the heart. In some cases, small segments of them take a "tunneled" intramuscular course forming the so-called myocardial bridging. This anatomical feature may lead to a sudden systolic narrowing of the "tunneled" segment (milking effect), thereby impairing coronary blood flow in both systole and diastole; which further reduces coronary reserve. Myocardial bridging mainly affects the middle-distal segments of left anterior descending (LAD) artery and may cause anything from chest pain to sudden death. So far, it seems that the use of beta-blockers and anti-calcium agents is the most effective therapeutic option for symptomatic cases. We now report a case where the clinical presentation of this anatomical feature was an acute coronary syndrome. Timely, accurate angiographic diagnosis allowed for adequate therapeutic adjustments to improve the patient's symptomatology.

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References

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Published

2020-04-18

How to Cite

1.
Peña Oliva S, Goire Guevara G, Salas Fabré A. Long myocardial bridging in the left anterior descending artery causing acute coronary syndrome. CorSalud [Internet]. 2020 Apr. 18 [cited 2025 Jun. 22];12(2):227-31. Available from: https://revcorsalud.sld.cu/index.php/cors/article/view/421

Issue

Vol. 12 No. 2 (2020)

Section

CASE REPORTS

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