CRP and diabetes mellitus: No significant differences were observed in preoperative data, such as hypertension, diabetes mellitus, preoperative cardiac function (NYHA grade), intraoperative information (such as extracorporeal circulation time), mechanical ventilation time, operation type, and postoperative information (such as postoperative LVEF, SOFA score on the first day after operation, or CRP within 24 h after operation) (Table 1).