There were no correlations between NGAL level in umbilical cord blood and neonatal mortality (r = 0.24; P = 0.54) and preoperative complications (NEC (r = 0.14; P = 0.67), respiratory insufficiency (r = 0.53; P = 0.36), circulatory insufficiency (r = 0.74; P = 0.07), or IVH (r = 0.67; P = 0.37)) in neonates with HLHS. This evidence concerns the gene LCN2 and Respiratory insufficiency.