A STUDY ON THE MORTALITY PROGNOSTIC VALUE OF NEUTROPHIL TO LYMPHOCYTE RATIO AT ADMISSION IN POLYTRAUMA PATIENTS

Abstract

Objectives: To evaluate the mortality prognostic value of neutrophil/lymphocyte ratio (NLR) at admission in patients with polytrauma. Methods: A retrospective, descriptive study on 196 polytrauma patients diagnosed using the criterion of the Berlin Consensus 2014, treated at Military Hospital 103 from June 2020 to June 2023. Severity was assessed based on ISS scales, and NLR was calculated at admission prior to any treatment intervention. Results: Polytrauma predominantly affected males (80.1%) aged between 20 and 59, polytrauma cases were primarily attributed to traffic accidents (66.8%). The group experiencing mortality exhibited lower Glasgow scores, Revised Trauma Score (RTS) at admission, and length of hospital stay compared to the survival group. Additionally, the mortality group demonstrated a higher Injury Severity Score (ISS), lactate level, INR, and aPTT scores, all statistically significant. The NLR value at admission demonstrated predictive value for mortality in polytrauma patients, with an AUC of 0.724, a cut-off of 10.8, sensitivity of 80%, and specificity of 67.2%. Conclusion: Polytrauma predominantly affected working-age males, with traffic accidents being the primary cause. The NLR value at admission emerges as a meaningful predictor of mortality in polytrauma patients.