Can Neutrophil-Lymphocyte and Platelet-Lymphocyte Ratios Predict the Risk of Developing New Ischemic Lesions After Carotid Stenting?

Abstract

Aim: It has been reported that the neutrophil-lymphocyte ratio (NLR) and platelet-lymphocyte ratio (PLR) are associated with carotid artery stenosis rate, risk of restenosis after stenting, and clinical outcome after an ischemic stroke, and are also predictive markers. The objective of this study is to evaluate whether NLR and PLR values and the associated temporal changes are indicators of the risk for newly developing ischemic lesions. Material and Methods: Patients who underwent stenting in our clinic between November 2019 and January 2022 and who had a complete blood count and a diffusion magnetic resonance imaging scan before and after the procedure, were included in the study and evaluated in two groups; patients with and without newly developing ischemic lesions. Results: Newly developing ischemic lesions were detected in 27 of the 50 patients included in the study. There was no difference in baseline and 48th-hour NLR and PLR rates and the temporal variation of these rates between patients with and without newly developing ischemic lesions. Erythrocyte distribution width (RDW) and hemoglobin (HGB) values were higher in the without newly developing ischemic lesions group at 48 hours, but there was only a significant difference between the RDW temporal change between the two groups. In the correlation analysis, no significant correlation was found between NLR, PLR, and their temporal changes, ipsilateral and contralateral stenosis rates, age, and residual stenosis rates. Conclusion: There was no significant relationship between the development of newly developing ischemic lesions and NLR and PLR values and the associated temporal changes.