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  • Title: Predictive Value of Mean Platelet Volume/Platelet Count for Prognosis in Acute Myocardial Infarction.
    Author: Tian C, Song J, He D, Wu J, Sun Z, Sun Z.
    Journal: Int Heart J; 2018 Mar 30; 59(2):286-292. PubMed ID: 29563382.
    Abstract:
    Increased mean platelet volume (MPV) has been associated with adverse clinical outcomes in patients with ST-segment elevation myocardial infarction (STEMI) undergoing percutaneous coronary intervention (PCI). We aim to assess whether MPV/platelet count (MPV/PC) ratio is a useful marker to predict long-term prognosis in patients with STEMI undergoing PCI. Moreover, the prognostic accuracy of MPV/PC ratio is compared with MPV. 962 consecutive patients with STEMI treated with P-PCI were considered. According to the admission MPV/PC values, the population was divided into two groups: high MPV/PC group (n = 320, MPV/PC ≥ 0.055) and low MPV/PC group (n = 642, MPV/PC < 0.055). Multivariate analysis showed that high MPV/PC was an independent predictor of major adverse cardiovascular event (MACE; hazard ratio [HR]: 1.121, 95% confidence interval [CI]: 1.056-1.190, P < 0.01), all-cause mortality (HR: 1.109, 95% CI: 1.016-1.209, P = 0.020), cardiac mortality (HR: 1.141, 95% CI: 1.038-1.253, P = 0.006), nonfatal myocardial reinfarction (HR: 1.148, 95% CI: 1.044-1.262, P = 0.004), and unplanned repeat revascularization (HR: 1.073, 95% CI: 1.007-1.144, P = 0.030), respectively. MPV/PC ratio has good accuracy for predicting MACE (the area under the receiver-operating characteristic curve: 0.764), and the cut-off value was 0.054 with a sensitivity of 0.813 and a specificity of 0.662. The discriminatory performance of MPV/PC ratio was better than MPV for predicting MACE (MPV/PC ratio versus MPV: z = 2.285, P = 0.022), in patients with STEMI undergoing P-PCI. MPV/PC ratio is able to but better than MPV to predict long-term adverse outcomes in patients with STEMI undergoing P-PCI.
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