Abstract
Anomalous aortic origin of a coronary artery (AAOCA) from an opposite sinus of Valsalva is an uncommon congenital defect that is typically only discovered on cardiac catheterization or on autopsy following sudden cardiac death. Conjectured mechanisms for the ischemia are generally believed to relate to the unique and easily obstructed geometry of the coronary ostium and the stenotic intramural coronary segment. Given the potentially devastating consequences of not repairing an AAOCA—that is, sudden cardiac death—these patients should undergo repair of the anomaly when it is discovered. Multiple options for surgically correcting the AAOCA have been developed, and the most used approaches include coronary artery bypass grafting, coronary reimplantation, and unroofing of the intramural segment. Here we present the technique for surgical unroofing of the intramural segment of an anomalous coronary artery of aortic origin.
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