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The relation between neutrophil-to-lymphocyte ratio and coronary chronic total occlusions
(BIOMED CENTRAL LTD, 2014) Demir, Kenan; Avcı, Ahmet; Altunkeser, Bülent Behlül; Yılmaz, Ahmet; Keleş, Fikret; Erseçgin, Ahmet
Background: Neutrophil-to-lymphocyte ratio (NLR) is a marker of systemic inflammation that correlates with cardiac events. This study assessed the association between NLR and the presence of chronic coronary total occlusion (CTO). Methods: The study population included 225 patients, a control group (n = 75), a coronary artery disease group (n = 75), and a CTO group (n = 75). NLR was compared in the three groups. Results: NLR levels were significantly higher in the CTO than in the other two groups (p < 0.001). Bivariate correlation analysis showed a positive correlation between NLR and SYNTAX Score, and multivariate logistic regression analysis found that NLR was an independent predictor of CTO. ROC analysis showed that an NLR cut-off of 2.09 could distinguish between patients with and without CTO (AUC = 0.74; 95% CI, 0.68-0.81), with a specificity of 69.3% and a sensitivity of 61%. Conclusion: NLR may be useful as a marker of CTO.