Angiographic prevalence of myocardial bridging İn our department

Abstract

INTRODUCTION: Myocardial Bridge (MB), which is a congenital coronary artery anomaly, is characterized by remaining of a segment of an epicardial coronary artery in the myocardium. The degree of coronary obstruction caused by MB depends on its location, thickness, length and the degree of cardiac contractility. Although its prevalence in autopsy studies is reported to be as high as 80%, coronary angiography studies report a varying prevalence between 0.5% and 16%. METHODS: The study was conducted retrospectively between November 2006 and October 2015 at yüzüncü yıl tıp fakültesi. Angiographic records of 18500 patients who underwent coronary angiography were retrospectively analyzed in order to investigate the prevalence of MB. RESULTS: Among 18500 patients undergoing coronary angiography, 203 had MB and the angiographic prevalence was calculated as 1.11%. The average age of the patients was 59.3, the youngest was 28 and the oldest was 84 years old. Of the patients, 40 (20%) were females and 163(80%) were males. MB was most frequently observed in the left anterior descending (LAD) artery. 59 patients (29%) had MB in distalLAD, 142 (70%) had in midLAD, and 2 (1%) had in circumflex coronary artery (Cx). DISCUSSION AND CONCLUSION: In our study, the prevalence of MB was found smilar to the values presented in various angiography studies in the literature. MB was found significantly more common in males. Also, MB was detected most frequently in the LAD artery.

Keywords

• coronary artery disease
• coronary angiography
• myocardial bridging