Associations of Neutrophil-Lymphocyte Ratio, Platelet-Lymphocyte Ratio and Lymphocyte-Monocyte Ratio With Postoperative Outcomes In Sigmoid Volvulus

Background: Sigmoid volvulus represents one of the three leading etiologies of acute colonic obstruction. The present study aimed to evaluate whether NLR, PLR, and LMR values serve as reliable prognostic indicators in the postoperative period. Methods: Patients that underwent emergency surgery for sigmoid volvulus between 2023-2025 were analyzed retrospectively. Results: A total of twenty patients were detected.Postoperative morbidity rate was 30%, mortality rate was 15%. High preoperative PLR levels were significantly associated with postoperative mortality; high preoperative NLR and PLR, low preoperative LMR levels were significantly associated with postoperative morbidity. Additionally, high NLR and PLR values measured on postoperative days 1 and 3 were found to correlate with both mortality and morbidity. To predict postoperative morbidity, the cut-off value for NLR was identified as 10.9 sensitivity,100%; specificity,71.4%, AUC(95%CI): 0.810(0.619-1.000)(p=0.032). Although this threshold was statistically significant for morbidity in subgroup analyses, no significant association with mortality was observed. The PLR cut-off value was determined as 298.7 sensitivity,100%; specificity,85.7%, AUC(95%CI): 0.952(0.864-1.000)(p=0.002). Subgroup analyses confirmed that the PLR cut-off retained statistical significance for both morbidity and mortality. Conclusion: This study suggests that inflammatory markers such as NLR, PLR, and LMR may provide valuable prognostic insight regarding morbidity and mortality following surgery for sigmoid volvulus. The cut-off values established for these biomarkers may aid in the early identification of high-risk patients in both the preoperative and postoperative settings and contribute meaningfully to clinical decision-making.