Interventional ASD II closure in the presence of an abnormally localized left main coronary artery
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Catheter-interventional closure of a secundum atrial septal defect (ASD II) is a common procedure. Most of the defects are suitable for this technique. A variety of different occluders and sizes are available. In the presence of additional congenital cardiac malformations the intervention may be problematic or even inappropriate. As a congenital anomaly, the left main coronary artery (LCA) may arise near or out of the ostium of the right coronary artery (RCA). The localization of the LCA may then be in the anterior or posterior wall around the aortic valve (AV) annulus/aortic root. The coexistence of this anomaly with a secundum atrial septal defect is rare. To close the ASD under this condition [1, 2], surgery is the most common procedure. The alternative catheter-interventional closure is rarely performed, because a partly or even complete compression of the LCA may occur as the occluder may rest at or on the aortic wall and therefore also on the LCA . However,...
KeywordsRight Coronary Artery Left Main Coronary Artery Right Bundle Branch Block Interatrial Septum Transoesophageal Echocardiography
Compliance with ethical standards
Conflict of interest
No author has conflicts of interests to disclose.
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