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The definition of complex transposition of the great arteries is not certain. Usually, the heart of simple transposition of the great arteries with atrioventricular valve anomaly, subpulmonary stenosis (left ventricular outflow tract obstruction; LVOTO), and coarctation (COA) seems to be the complex transposition of the great arteries. In this paper, the hearts with severe AV valve anomaly, hypoplastic ventricle as the candidate of Fontan procedure were excluded. Several authors published the result of complex TGA surgery worse than that of simple TGA, but recently, many authors emphasized that the result of complex TGA surgery was not worse even in the case including VSD, PS, and COA. This improvement can be achieved by precise anatomic diagnosis, and well designed surgical plan and better postoperative care.
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