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J Interv Cardiol ; 29(1): 89-98, 2016 Feb.
Article in English | MEDLINE | ID: mdl-26864952

ABSTRACT

Endothelial progenitor cells (EPCs) and circulating endothelial cells (CECs) are mobilized from the bone marrow and increase in the early phase after ST-elevation myocardial infarction (STEMI). The aim of this study was to assess the prognostic significance of CECs and indices of endothelial dysfunction in patients with STEMI. In 78 patients with acute STEMI, characterization of CD34+/VEGFR2+CECs, and indices of endothelial damage/dysfunction such as brachial artery flow mediated dilatation (FMD) were determined. Blood samples for CECs assessment and quantification were obtained within 24 hours of admission and FMD was assessed during the index hospitalization. At 30 days follow up, the primary composite end point of major adverse cardiac events (MACE) consisting of all-cause mortality, recurrent nonfatal MI, or heart failure and the secondary endpoint of early adverse left ventricular (LV) remodeling were analyzed. The 17 patients (22%) who developed MACE had significantly higher CEC level (P = 0.004), von Willebrand factor (vWF) level (P = 0.028), and significantly lower FMD (P = 0.006) compared to the remaining patients. Logistic regression analysis showed that CECs level and LV ejection fraction were independent predictors of MACE. The areas under the receiver operating characteristic curves (ROC) for CEC level, FMD, and the logistic model with both markers were 0.73, 0.75, and 0.82, respectively, for prediction of the MACE. The 16 patients who developed the secondary endpoint had significantly higher CEC level compared to remaining patients (P = 0.038). In conclusion, increased circulating endothelial cells and endothelial dysfunction predicted the occurrence of major adverse cardiac events and adverse cardiac remodeling in patients with STEMI.


Subject(s)
Endothelial Cells/pathology , Endothelium, Vascular/physiopathology , Myocardial Infarction , Stroke Volume , Adult , Aged , Aged, 80 and over , Biomarkers/blood , Cell Count/methods , Electrocardiography/methods , Female , Heart Failure/diagnosis , Heart Failure/etiology , Humans , Male , Middle Aged , Myocardial Infarction/diagnosis , Myocardial Infarction/mortality , Myocardial Infarction/pathology , Prognosis , Statistics as Topic , Ventricular Function, Left , Ventricular Remodeling/physiology
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