title: Coronary stenting in diabetic patients: Results from the ROSETTA registry.
abstract: OBJECTIVE
  Diabetes mellitus is associated with high rates of restenosis and adverse outcomes after percutaneous transluminal coronary angioplasty (PTCA). It is unclear whether coronary stenting reduces adverse events in diabetic patients after PTCA. Our purpose was to determine whether coronary stenting improves clinical event rates in diabetic patients after PTCA.
  
  
  METHODS
  The Routine Versus Selective Exercise Treadmill Testing After Angioplasty (ROSETTA) registry was a prospective multicenter observational study examining functional testing and adverse outcomes after successful PTCA.
  
  
  RESULTS
  Among the 791 patients enrolled, 180 were diabetic. A total of 90 diabetics received stents while the remaining 90 patients did not. Baseline clinical characteristics were similar between the 2 groups of patients. However, patients with stents were more likely to have complex lesions, whereas those without stents were more likely to undergo atherectomy and have greater residual coronary stenosis. At 6-month follow-up, the composite end point defined as cardiac death, unstable angina, myocardial infarction, need for repeat PTCA, or coronary artery bypass graft surgery (CABG) occurred in 25.0% of stented and 22.2% of nonstented diabetic patients (P not significant [NS]). A multivariate logistic regression analysis showed that coronary stenting was not associated with a reduced incidence of the composite end point among diabetic patients (odds ratio 0.97, 95% CI 0.46-2.05, P NS).
  
  
  CONCLUSIONS
  Coronary stenting does not improve clinical event rates in diabetic patients after PTCA.
authors.affiliation: Montreal General Hospital, Montreal, Quebec, Canada. thao.huynh@muhc.mcgill.ca
authors.forename: T
authors.initials: T
authors.lastname: Huynh
authors.forename: M J
authors.initials: MJ
authors.lastname: Eisenberg
authors.forename: U
authors.initials: U
authors.lastname: Deligonul
authors.forename: J
authors.initials: J
authors.lastname: Tsang
authors.forename: K
authors.initials: K
authors.lastname: Okrainec
authors.forename: D
authors.initials: D
authors.lastname: Schechter
authors.forename: J
authors.initials: J
authors.lastname: Lefkovits
authors.forename: K H
authors.initials: KH
authors.lastname: Mak
authors.forename: D L
authors.initials: DL
authors.lastname: Brown
authors.forename: D
authors.initials: D
authors.lastname: Brieger
mesh_terms: D015906:Angioplasty, Balloon, Coronary / Q000009:adverse effects*; D003327:Coronary Disease / Q000145:classification / Q000209:etiology / Q000628:therapy*; D048909:Diabetes Complications; D003925:Diabetic Angiopathies / Q000209:etiology / Q000628:therapy*; D005080:Exercise Test; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D015337:Multicenter Studies as Topic; D015999:Multivariate Analysis; D016017:Odds Ratio; D016032:Randomized Controlled Trials as Topic; D012008:Recurrence; D012042:Registries; D015607:Stents; D016896:Treatment Outcome