Surgical unroofing of myocardial bridges

Myocardial bridging occurs when an epicardial coronary artery has an intramyocardial segment that is compressed during systole, and may result in decreased perfusion pressure during early diastole (Figure 1) (9). The prevalence has been reported from one to five percent from angiographic series, although the true prevalence is likely much higher due to asymptomatic variants, as evidenced by much higher rates of incidence in autopsy series (10,11). The literature suggests that myocardial bridges may be responsible for serious adverse events such as myocardial ischemia, acute coronary syndromes, left ventricular dysfunction, arrhythmias, and sudden cardiac arrest (6).
Source: Operative Techniques in Cardiac and Thoracic Surgery - Category: Cardiovascular & Thoracic Surgery Authors: Tags: Congenital Source Type: research