Background: The relationship between preoperative hyperglycemia and postoperative acute kidney injury (AKI) occurrence in non-cardiac surgery including laparoscopic surgery remains unclear. This study aimed to assess the relationship between preoperative chronic hyperglycemia and postoperative AKI occurrence after a major laparoscopic abdominal surgery.
Methods: We retrospectively reviewed medical records of diabetic patients (≥ 20 years old) who underwent elective major laparoscopic abdominal surgery procedures between 2010 and 2016. Patients were divided into two groups based on a cut-off value of hemoglobin A1c (HbA1c) at 6%. Serum creatinine value was used for the diagnosis of AKI, and all assessments and diagnoses of postoperative AKI were performed on 0-3 postoperative days (POD) using the criteria of Kidney Disease: Improving Global Outcomes.
Results: In all, 1885 patients were included in the final analysis, and patients were divided into the following groups: < 6.0% group with 1257 patients (66.7%), and ≥ 6.0% group with 628 patients (33.3%). Sixty-nine patients (3.7%) were diagnosed with postoperative AKI within 3 POD. Multivariable logistic regression analysis showed no significant difference in the incidence rate of postoperative AKI between the HbA1c ≥ 6.0% group and the < 6.0% group (odds ratio 1.10, 95% confidence interval 0.57-2.15; P = 0.770). In addition, there was no significant interaction between preoperative HbA1c group and exposure to acute hyperglycemia (serum glucose > 200 mg/dL) for incidence of AKI on POD 0-3 (P = 0.181).
Conclusions: In diabetic patients, preoperative chronic hyperglycemia is not associated with postoperative AKI occurrence within 3 POD after a major laparoscopic abdominal surgery.
Keywords: Acute kidney injury; Diabetes mellitus; General surgery; Laparoscopy.