title: Predictive score for target vessel revascularization after bare metal coronary stenting.
abstract: BACKGROUND
  The ability to estimate the rate of a new target vessel revascularization (TVR) after bare metal coronary stenting is an important issue, as the systematic use of drug-eluting stents is still limited by its high costs.
  
  
  OBJECTIVE
  We sought to create a predictive score for the possibility of a new TVR after bare metal stenting.
  
  
  METHODS
  Clinical and angiographic characteristics of a prospective cohort of 848 patients were included in a dedicated database. Independent predictors of 1-year TVR were identified by multivariate analysis, and the score points were assigned according to the relative risk ratio of 1-year TVR.
  
  
  RESULTS
  The 1-year TVR rate in the 848 patients was 7.4%. By multivariate analysis, reference diameter, lesion length and diabetes mellitus were retained in the final model (Hosmer-Lemeshow goodness-of-fit test = 2.339; p = 0.969). The increase of 1-year TVR rates was almost linear, with each score level (0 = 1.4%, 1 = 4.5%, 2 = 7.1%, 3 = 10.4% and 4 of 5 = 15.7%; r = 0.90; p < 0.001), and the p of the Chi-square test for trend was < 0.0001.
  
  
  CONCLUSIONS
  This score can stratify patients with very low and high TVR rates and can be used as a simple clinical tool for the prediction of a new revascularization procedure in daily practice.
authors.affiliation: Institute of Cardiology of Rio Grande do Sul / FUC, Hemodynamic Service, Rio Grande do Sul, Brazil.
authors.forename: Carlos A M
authors.initials: CA
authors.lastname: Gottschall
authors.forename: Alexandre S
authors.initials: AS
authors.lastname: Quadros
authors.forename: Rogerio
authors.initials: R
authors.lastname: Sarmento-Leite
mesh_terms: D000208:Acute Disease; D000368:Aged; D015331:Cohort Studies; D003327:Coronary Disease / Q000628:therapy*; D005260:Female; D006801:Humans; D008297:Male; D008670:Metals; D008875:Middle Aged; D015999:Multivariate Analysis; D009204:Myocardial Revascularization / Q000706:statistics & numerical data; D016017:Odds Ratio; D011379:Prognosis; D011446:Prospective Studies; D015607:Stents; D013577:Syndrome; D013997:Time Factors
chemical_list: D008670:Metals