07 January 2020 : Clinical Research
Prognostic Value of Pre-Infarction Angina Combined with Mean Platelet Volume to Lymphocyte Count Ratio for No-Reflow and Short-Term Mortality in Patients with ST-Segment Elevation Myocardial Infarction Undergoing Percutaneous Coronary Intervention
Xinsen Chen1ABCE, Youbao Meng2ABCD, Meng Shao3ABDE, Tian Zhang1CF, Ling Han3BD, Wei Zhang1BC, Hongyan Zhang1EF, Hua Hai1AC, Guihua Li1ABCDE*DOI: 10.12659/MSM.919300
Med Sci Monit 2020; 26:e919300
Abstract
BACKGROUND: The aim of the present study was to investigate the clinical predictive value of pre-infarction angina (PIA) combined with mean platelet volume to lymphocyte count ratio (MPVLR) for no-reflow phenomenon and short-term mortality in patients with ST-segment elevation myocardial infarction (STEMI) undergoing percutaneous coronary intervention (PCI).
MATERIAL AND METHODS: A total of 1009 STEMI patients who had undergone PCI were enrolled and subdivided into 4 groups based on the occurrence of PIA and the presence of MPVLR above or below the cutoff value. Analysis of the predictors of the no-reflow phenomenon and 90-day mortality was conducted. Further, evaluation and comparison of the clinical predictive value of PIA, MPVLR, and their combination were done.
RESULTS: Both MPVLR (odds ratio [OR]=1.476, 95% confidence interval [CI]: 1.401 to 1.756, P<0.001; hazard ratio [HR]=1.430, 95% CI: 1.287 to 1.643, P<0.001) and PIA (OR=0.905, 95% CI: 0.783 to 0.986, P<0.001; HR=0.878, 95% CI: 0.796 to 0.948, P<0.001) were independent predictors of no-reflow phenomenon and 90-day mortality. Spearman’s rank correlation test revealed that MPVLR (r=–0.297, P<0.001), monocyte to lymphocyte count ratio (MLR) (r=–0.211, P<0.001) and neutrophil to lymphocyte count ratio (NLR) (r=–0.389, P<0.001) in peripheral blood were significantly negatively correlated with postoperative left ventricular ejection fraction (LVEF). Upon comparing the area under curve (AUC), the MPVLR combined with PIA achieved better performance in differentiating no-reflow phenomenon (AUC=0.847, 95% CI: 0.821 to 0.874) and 90-day mortality (AUC=0.790, 95% CI: 0.725 to 0.855), than the GRACE score, MPVLR and PIA alone, and had similar performance to all other pairwise combinations of the GRACE score, MPVLR and PIA.
CONCLUSIONS: High MPVLR and PIA were independent predictors of the no-reflow phenomenon and 90-day mortality in patients with STEMI after PCI. Moreover, Combined application of MPVLR and PIA can effectively predict the occurrence of the no-reflow phenomenon and 90-day mortality.
Keywords: Angina, Unstable, mean platelet volume, Mortality, no-reflow phenomenon, Angina Pectoris, Logistic Models, Lymphocyte Count, Lymphocytes, Multivariate Analysis, Neutrophils, percutaneous coronary intervention, Proportional Hazards Models, ROC Curve, Risk Assessment, ST elevation myocardial infarction, Stroke Volume
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