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Evaluation Study
Journal Article
The neutrophil-to-lymphocyte ratio predicts major perioperative complications in patients undergoing colorectal surgery.
Colorectal Disease 2016 July
AIM: The objective of the study was to evaluate the association between the neutrophil-to-lymphocyte ratio (NLR) and the occurrence of perioperative complications in patients undergoing colorectal surgery.
METHOD: A retrospective cohort study was conducted of patients who underwent resection for suspected or confirmed colorectal cancer from 2004 to 2012. Patient cohorts with a high vs low NLR were defined by receiver operating characteristic curve analysis. Univariate and multivariate logistic regression was used to determine whether patients with elevated NLR were more likely to suffer perioperative complications.
RESULTS: In all, 583 patients were included. A preoperative NLR greater than or equal to 2.3 was significantly associated with a major perioperative complication (OR 2.52, 95% CI 1.26-5.01). On multivariate analysis, a high NLR (OR 2.25, 95% CI 1.12-4.52) and Charlson Comorbidity Index ≥ 3 (OR 4.55, 95% CI 2.17-9.56) were significantly related to major morbidity. No relationships were found between an elevated preoperative NLR and complication type, although there was a trend towards the occurrence of anastomotic leakage.
CONCLUSION: Preoperative NLR ≥ 2.3 may be a risk factor for major surgical complications following colorectal resection. Further study is needed to validate this threshold and evaluate the clinical implications of these findings.
METHOD: A retrospective cohort study was conducted of patients who underwent resection for suspected or confirmed colorectal cancer from 2004 to 2012. Patient cohorts with a high vs low NLR were defined by receiver operating characteristic curve analysis. Univariate and multivariate logistic regression was used to determine whether patients with elevated NLR were more likely to suffer perioperative complications.
RESULTS: In all, 583 patients were included. A preoperative NLR greater than or equal to 2.3 was significantly associated with a major perioperative complication (OR 2.52, 95% CI 1.26-5.01). On multivariate analysis, a high NLR (OR 2.25, 95% CI 1.12-4.52) and Charlson Comorbidity Index ≥ 3 (OR 4.55, 95% CI 2.17-9.56) were significantly related to major morbidity. No relationships were found between an elevated preoperative NLR and complication type, although there was a trend towards the occurrence of anastomotic leakage.
CONCLUSION: Preoperative NLR ≥ 2.3 may be a risk factor for major surgical complications following colorectal resection. Further study is needed to validate this threshold and evaluate the clinical implications of these findings.
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