NPPB and apparent mineralocorticoid excess: The preoperative and postoperative biological indicators showed that the levels of serum BNP, TnI and DFR were positively correlated with each other, indicating that the serum of APE patients showed abnormally high expression and was related to the severity of the disease, which could reflect the prognosis and help clinicians to determine the patient's diagnosis, determine the condition and guide clinical treatment.