NPPB and congenital diaphragmatic hernia: The principal findings of this study are as follows: (1) the higher perioperative NT-proBNP level prolonged ICU stay for pediatric patients with CDH after surgery; (2) both the mean NT-proBNP exposure level and the time trends were associated with prolonged ICU stay; (3) patients with rising rapidly perioperative NT-proBNP level suffer higher risk of prolonged ICU stay.