Correlation Between Preoperative Glycosylated Hemoglobin Level And Complications After Coronary Artery Bypass Grafting

Objective: To investigate the relationship between preoperative Hb A1 c level and complications after off-pump coronary artery bypass grafting.Methods: A total of 395 patients undergoing off-pump coronary artery bypass grafting were selected and divided into two groups according to preoperative Hb A1 c level: A(Hb A1 c < 8%),B(Hb A1c≥8%).Two groups of basic information and operation status were compared.The main comparative indicators are the incidence of postoperative complications(major adverse cardiovascular events,acute kidney injury,infection,acute cerebrovascular events,reoperation,lower extremity venous thrombosis).Results: Comparing the basic data of groups A and B,the LVEF and SV of group A were higher than those of group B,and the difference was statistically significant(P < 0.05),the proportion of combined diabetes and insulin usage rate were lower than those of group B,and the difference was statistically significant(P<0.05),there is no statistical difference in the remaining data.There was no statistical difference between the groups in terms of postoperative mechanical ventilation time,ICU stay time and hospital stay time.In comparison of postoperative complications,the incidence of AKI in group B was higher than that in group A,and the difference was statistically significant(P<0.05),there was no statistical difference in the incidence of other complications.Conclusion: Patients with preoperative glycosylated hemoglobin levels greater than or equal to 8% are at high risk of AKI after off-pump coronary artery bypass grafting.