Arterial Switch Operation in Single Coronary Ostium With Intramural Course: Subclavian Artery Patch Angioplasty.

This report describes a neonatal arterial switch operation in a transposition of the great arteries with single ostium and intramural course coronary pattern. The technique proposed is based on the creation of two coronary neoostia by incising the left coronary intramural course and splitting the common button followed by a patch enlargement of left coronary button using the left subclavian artery.