title: The effect of the duration of clopidogrel use on hsCRP levels after stenting the target vessel in patients with acute coronary syndrome.
abstract: OBJECTIVE
  The aim of this study is to investigate the relationship between the duration of clopidogrel use and the inflammation process after acute coronary syndrome in patients who received bare metal stent (BMS) or drug eluting stent (DES).
  
  
  METHODS
  Sixty patients with acute coronary syndrome who received a stent were divided into three groups: 20 patients with BMS receiving clopidogrel for one month (BMS1 group), 20 patients with BMS receiving clopidogrel for 6 months (BMS6 group), and 20 patients with DES receiving clopidogrel for 6 months (DES group). High sensitive C-reactive protein (hsCRP, mg/dL) was measured at baseline, and then at first, third and sixth post-operative month.
  
  
  RESULTS
  The inital hsCRP levels were similar and decreased significantly in all groups by one month of clopidogrel treatment (from 7.1±1.9 to 3.8±2.3 in BMS1 group, p=0,002, from 6.5±2.8 to 4.3±2.5 in BMS6 group, p= 0,01 and from 7.7±2 to 3.6±2.4 in DES group, p < 0.001). In the BMS1 group, after termination of the clopidogrel therapy after the first month, hsCRP levels increased again at the third and sixth months. In the BMS6 and DES groups, hsCRP levels continued to show a decrease at the third month and sixth months.
  
  
  CONCLUSIONS
  Clopidogrel decreases hsCRP levels in patients with acute coronary syndrome. It might be desirable to lengthen the duration of the clopidogrel therapy to maintain its anti-inflammatory effects.
authors.affiliation: Department of Cardiology, Faculty of Medicine, Fırat University, Elazıg, Turkey.
authors.forename: Yusuf
authors.initials: Y
authors.lastname: Cekici
authors.forename: Hasan
authors.initials: H
authors.lastname: Korkmaz
authors.forename: Ahmet
authors.initials: A
authors.lastname: Celik
authors.forename: Mehmet Nail
authors.initials: MN
authors.lastname: Bilen
authors.forename: Musa
authors.initials: M
authors.lastname: Bulut
authors.forename: Mehmet
authors.initials: M
authors.lastname: Akbulut
mesh_terms: D054058:Acute Coronary Syndrome / Q000188:drug therapy* / Q000378:metabolism / Q000628:therapy*; D002097:C-Reactive Protein / Q000378:metabolism; D000077144:Clopidogrel; D054855:Drug-Eluting Stents; D006801:Humans; D010975:Platelet Aggregation Inhibitors / Q000008:administration & dosage* / Q000627:therapeutic use*; D013988:Ticlopidine / Q000008:administration & dosage / Q000031:analogs & derivatives* / Q000627:therapeutic use
chemical_list: D010975:Platelet Aggregation Inhibitors; D002097:C-Reactive Protein; D000077144:Clopidogrel; D013988:Ticlopidine