Fig. 2

CHD classification of children with CHD-NEC. Note: DDPC, ductus-dependent pulmonary circulation; DDSC, ductus-dependent systemic circulation; TGA, transposition of the great arteries; VSD, ventricular septal defect; TAPVC, total anomalous of pulmonary venous connection; ALCAPA, anomalous of left coronary artery arising from pulmonary artery; PA/IVS, pulmonary atresia with intact ventricular septum; PA/VSD, pulmonary atresia with ventricular septal defect; AS, aortic valve stenosis; HLHS, hypoplastic left heart syndrome; COA, coarctation of the aorta; IAA, interruption of aortic arch; DORV, double outlet of right ventricle