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  • Title: Usefulness of the platelet-to-lymphocyte ratio in predicting bare-metal stent restenosis.
    Author: Yılmaz S, Sen F, Ünal S, Yayla C, Özeke Ö, Aras D, Topaloglu S, Aydogdu S.
    Journal: Scand Cardiovasc J; 2015 Feb; 49(1):39-44. PubMed ID: 25414124.
    Abstract:
    OBJECTIVES: Platelet-to-lymphocyte ratio (PLR) provides a simple method for assessment of inflammatory status. The aim of the present study was to investigate the predictive value of preprocedural PLR on development of in-stent restenosis in patients undergoing bare-metal stent (BMS) implantation. DESIGN: Six hundred and seventy-five consecutive patients (mean age: 60.6 ± 8.3, 66% men) who had undergone successful BMS implantation and additional coronary angiography for stable or unstable angina pectoris were analyzed. Mean period between 2 coronary angiographies was 14.3 ± 3.4 months. RESULTS: Patients were divided into tertiles based on preprocedural PLR. Restenosis occurred in 58 patients (26%) in the lowest tertile, in 82 (36%) in the middle tertile, and in 115 (51%) in the highest tertile (p < 0.001). Serum C-reactive protein levels were also significantly higher in patients in tertile 3 than in those in tertiles 1 and 2 (p < 0.001). Smoking, diabetes mellitus, high-density lipoprotein, stent length, preprocedural PLR, and C-reactive protein levels emerged as independent predictors of in-stent restenosis. In receiver-operating characteristics curve analysis, PLR >122 had 81% sensitivity and 72% specificity in predicting in-stent restenosis. CONCLUSIONS: High preprocedural PLR is a powerful and independent predictor of BMS restenosis in patients with stable and unstable angina pectoris.
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