Hubungan Kadar Neutrophil-Lymphocytes Ratio Pada Operasi Coronary Artery Bypass Graft dengan Acute Kidney Injury di RSUP H. Adam Malik Medan

Abstract

Background: Acute Kidney Injury (AKI) is a notable postoperative complication in patients undergoing Coronary Artery Bypass Grafting (CABG). The Neutrophil-Lymphocyte Ratio (NLR) is an inflammatory marker that may be associated with postoperative AKI. This study aimed to evaluate the relationship between NLR and AKI in CABG patients at H. Adam Malik General Hospital Medan. Methods: This retrospective cohort study included 60 patients who underwent on-pump or off-pump CABG. Preoperative NLR and postoperative AKI were obtained from medical records, and AKI was assessed using AKIN criteria. Statistical analysis was performed to evaluate the association between NLR and AKI, with a significance level of p<0.05. Results: Most patients had normal NLR values (83.3%), and AKI occurred in 15% of cases. The mean NLR was 2.36 in the on-pump group and 2.47 in the off-pump group. There was no significant association between NLR and AKI (p=0.417). There was also no significant association between surgical technique and AKI (p=0.723). Conclusion: There was no significant relationship between NLR and AKI in CABG patients, and the type of surgical technique did not influence AKI incidence.