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Association of mean platelet volume with presence of non-viable myocardium in ischaemic cardiomyopathy.
Kardiologia Polska 2017
BACKGROUND: Parameters derived from complete blood count, such as mean platelet volume (MPV), neutrophil-to-lymphocyte ratio (NLR), and platelet-to-lymphocyte ratio (PLR), have recently been proposed as measures of inflammation in addition to C-reactive protein (CRP), a classical inflammatory marker. Significant association of these parameters with atherosclerosis and complications have increasingly been reported.
AIM: The aim of the study is to evaluate the relationship between these parameters and the presence of myocardial viability assessed with positron emission tomography (PET) in patients with ischaemic cardiomyopathy (ICM).
METHODS: A total of 122 ICM patients who had undergone PET were enrolled in this study. The patients were dichotomised depending on the presence of transmural scar. Group 1 consisted of 21 patients who had transmural scar tissue only, who were accepted as the group having non-viable myocardium. Group 2 consisted of 101 patients who had hibernation and/or non-transmural scar, who were accepted as the group having viable myocardium. Haematological parameters within 30 days of PET imaging were retrospectively analysed.
RESULTS: There were no significant differences between the two groups regarding values of white blood cell, neutrophil, lymphocyte, platelet, haemoglobin, red cell distribution width, CRP, PLR, and NLR. Patients with non-viable myocardium have significantly higher levels of MPV (p = 0.002). In multiple logistic regression analysis, MPV (odds ratio [OR] = 0.373, 95% confidence interval [CI] 0.20-0.69, p = 0.002), was identified as an independent predictor of non-viable myocardium. In receiver-operator characteristic (ROC) analysis, a cut-point of 8.19 identified patients with non-viable myocardium (area under curve: 0.72, 95% CI 0.60-0.84). An MPV value greater than 8.19 demonstrated a sensitivity of 76% and a specificity of 55%. \ CONCLUSIONS: The present study showed that MPV is an inexpensive, clinical, and routinely measurable parameter that is associated with the presence of viable myocardium in ICM.
AIM: The aim of the study is to evaluate the relationship between these parameters and the presence of myocardial viability assessed with positron emission tomography (PET) in patients with ischaemic cardiomyopathy (ICM).
METHODS: A total of 122 ICM patients who had undergone PET were enrolled in this study. The patients were dichotomised depending on the presence of transmural scar. Group 1 consisted of 21 patients who had transmural scar tissue only, who were accepted as the group having non-viable myocardium. Group 2 consisted of 101 patients who had hibernation and/or non-transmural scar, who were accepted as the group having viable myocardium. Haematological parameters within 30 days of PET imaging were retrospectively analysed.
RESULTS: There were no significant differences between the two groups regarding values of white blood cell, neutrophil, lymphocyte, platelet, haemoglobin, red cell distribution width, CRP, PLR, and NLR. Patients with non-viable myocardium have significantly higher levels of MPV (p = 0.002). In multiple logistic regression analysis, MPV (odds ratio [OR] = 0.373, 95% confidence interval [CI] 0.20-0.69, p = 0.002), was identified as an independent predictor of non-viable myocardium. In receiver-operator characteristic (ROC) analysis, a cut-point of 8.19 identified patients with non-viable myocardium (area under curve: 0.72, 95% CI 0.60-0.84). An MPV value greater than 8.19 demonstrated a sensitivity of 76% and a specificity of 55%. \ CONCLUSIONS: The present study showed that MPV is an inexpensive, clinical, and routinely measurable parameter that is associated with the presence of viable myocardium in ICM.
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