Association of the Monocyte to HDL Cholesterol Ratio With Thrombus Burden in Patients With ST-Segment Elevation Myocardial Infarction

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Intracoronary thrombus burden is associated with some adverse events and poor prognosis in patients with ST-segment elevation myocardial infarction (STEMI). Identifying predictors of the intracoronary thrombus burden may contribute to the management of STEMI. In this study, we evaluated whether monocyte count to high-density lipoprotein cholesterol ratio (MHR) is a predictor of intracoronary thrombus burden in patients with STEMI. The study population consisted of 414 patients with STEMI who underwent primary percutaneous coronary intervention (PCI). Angiographic thrombus burden was classified based on thrombolysis in myocardial infarction (TIMI) thrombus grades. The patients were grouped into 2 categories of low thrombus burden and high thrombus burden. The MHR was significantly higher in the high thrombus burden group compared with the low thrombus group (16.0 [9.2-22.1] vs 25.4 [13.5-44.6]; P < .001). In multivariate logistic regression analysis, MHR was an independent predictor of high thrombus burden (odds ratio: 1.067, 95% CI: 1.031-1.105; P < .001). The area under the receiver-operating characteristic curve of the MHR was 0.688 (0.641-0.733; P < .001) to predict high thrombus burden. In conclusion, MHR was independent predictor of high thrombus burden in patients with STEMI who underwent primary PCI.