Additionally, adirect correlation was observed between NT-proBNP levels and mortality rates, aswell as other adverse outcomes, including prolonged ICU stay, AKI, low cardiacoutput (LCO), new-onset AF, prolonged MV, cerebrovascular events, prolongedhospitalization, emergency reoperation, postoperative HF, and postoperativedelirium. Here, NPPB is linked to acute kidney injury.