Özet:

Myocardial bridge (MB) is a congenital abnormaly that the a part of an epicardial artery follows a route inside myocardium and leads to narrowing with systolic compression. Most commonly seen in left anterior descending artery (LAD). By means of compression and endothelial dysfunction it can lead coronary ischemia and various clinical presentations. Our case presented to our clinic with inferior myocardial infarction and primary percutenous intervention performed for right coronary artery (RCA). No reflow developed during intervention and glycoprotein IIb-IIIa infusion given to patient. Control coronary angiography revealed a dissecting lesion with a 80% stenosis at the distal of RCA after the infarct related lesion and a myocardial bridge with a 99% stenosis at the posterior descending artery (PDA). Myocardial bridging at the PDA is a very rare situation. Percutenous intervention on those lesions during acute coronary syndrome may result with no-reflow phenomena. Myocardial bridging may increase the risk of no-reflow in acute coronary syndromes.

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