Abstract
The aim of the study was to evaluate the utility of the preprocedural platelet-lymphocyte ratio (PLR) for predicting no reflow in patients undergoing primary percutaneous intervention (PCI) for the treatment of ST-segment elevation myocardial infarction. The thrombolysis in myocardial infarction (TIMI) flow grades of 287 patients treated with primary PCI were assessed retrospectively. Patients were divided into 3 tertiles based upon preprocedural PLR. Pre- and postprocedural TIMI flow grades were evaluated. No reflow developed in 6, 14, and 43 patients in the lower, middle, and higher tertiles, respectively (P < .001). After multivariate analysis, PLR remained a significant predictor of no reflow together with neutrophil-lymphocyte ratio (NLR). A cutoff value of 160 for PLR and 5.9 for NLR predicted no reflow with sensitivities and specificities of 75% and 71% and 74% and 70%, respectively. In conclusion, high preprocedural PLR and NLR levels are significant and independent predictors of no reflow in patients undergoing primary PCI.
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