title: Associations between selected angiographic parameters and the number of CD34⁺ cells and plasma levels of vascular endothelial growth factor and angiogenin in patients with ST-segment elevation myocardial infarction.
abstract: BACKGROUND
  Left ventricular (LV) function and prognosis in patients after myocardial infarction are associated with some angiographic parameters.
  
  
  OBJECTIVE
  The aim of the study was to assess the associations between the TIMI score in the infarct-related artery (IRA) before percutaneous coronary intervention (PCI), myocardial blush grade (MBG) following effective PCI, and the extent of collaterals measured using the Rentrop scale and plasma levels of vascular endothelial growth factor (VEGF) and angiogenin, number of CD34⁺ cells, as well as LV ejection fraction (LVEF) and wall motion score index (WMSI).
  
  
  METHODS
  In 62 patients with the first ST-segment elevation myocardial infarction (STEMI) treated with PCI and bare metal stent implantation, plasma VEGF and angiogenin levels as well as the number of CD34⁺ cells were assessed before PCI, 24 hours after PCI, at discharge, and at 30 days following STEMI. LVEF and WMSI were evaluated by echocardiography at discharge and at 1 and 6 months after STEMI.
  
  
  RESULTS
  Patients with TIMI 0-1 flow in the IRA before PCI (64.6% of the patients) had significantly higher troponin I and VEGF levels as well as a higher number of CD34⁺ cells than patients with TIMI 3 flow. Patients with TIMI 0-1 flow also had worse LV systolic function at 1 and 6 months following STEMI. Neither the MBG grade nor the Rentrop score showed associations with the mobilization of CD34⁺ cells, VEGF and angiogenin levels, and parameters of L V systolic function.
  
  
  CONCLUSIONS
  Early patency of the IRA and lower myocardial necrosis seem to be more important for LV function assessed in patients 6 months after STEMI than mobilization of CD34⁺ cells and levels of angiogenic factors.
authors: Zofia
authors: Z
authors: Grąbczewska
authors: Robert
authors: R
authors: Dębski
authors: Krzysztof
authors: K
authors: Góralczyk
authors: Adam
authors: A
authors: Sukiennik
authors: Iwona
authors: I
authors: Świątkiewicz
authors: Jacek
authors: J
authors: Kubica
mesh_terms: D018952:Antigens, CD34 / Q000378:metabolism*; D017023:Coronary Angiography; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D015850:Interleukin-6 / Q000097:blood; D016209:Interleukin-8 / Q000097:blood; D008297:Male; D009203:Myocardial Infarction / Q000097:blood / Q000175:diagnosis* / Q000503:physiopathology / Q000601:surgery*; D062645:Percutaneous Coronary Intervention; D011379:Prognosis; D012720:Severity of Illness Index; D042461:Vascular Endothelial Growth Factor A / Q000097:blood*
chemical_list: D018952:Antigens, CD34; D015850:Interleukin-6; D016209:Interleukin-8; D042461:Vascular Endothelial Growth Factor A