Correlation between the Type of Arterial Vascularizacion and Presence and Localization of Myocardial Bridges

Abstract

Introduction: Myocardial bridges represent an anomaly of the coronary arteries' flow, which can be asymptomatic, or can lead to the coronary insufficiency and its clinical consequences. The aim of this research was to derermine whether there is a correlation between the type of arterial vascularization and presence and localization of the myocardial bridges. Material and Methods: As a material for this work, we used 45 human heart specimens from the Institute of Anatomy of the Medical Faculty in Sarajevo. At each heart, the type of arterial vascularization was determined, and in those specimens with myocardial bridges, the branch on which they were localized was recorded. Results: Out of total 45 human hearts, myocardial bridges were present at 24 (53.3%). One myocardial bridge was present in 16 hearts, two in 7 hearts and three in one heart. In the heart group with myocardial bridges, the incidence of right type of vascularization was 79.2%, and in the group without myocardial bridges 76.2%. The left type of vascularisation was least represented in both groups, with 9.5% in the heart group without bridges and 8.3% in the group with myocardial bridges present. Out of 33 detected myocardial bridges, 25 of them were on the left and 8 on the right coronary artery, so myocardial bridges are much more often localized on the branches of the left than the right coronary arteries, regardless of the type of arterial vascularization. Conclusion: There is no correlation of the type of arterial vascularization of the human hearts with the presence and localization of myocardial bridges.