To assess the risk factors for CI-AKI, the influential factors (age, sex, leftventricular ejection fraction (LVEF), lymphocytes, neutrophils, NLR, LnNT-proBNP, CK-MB, TG, HDL, NHR, fasting glucose, and diuretics) associated withCI-AKI and eGFR were subjected to univariate analysis. Here, NPPB is linked to acute kidney injury.