title: Prognostic heterogeneity among patients with chronic stable coronary disease: determinants of long-term mortality after treatment with percutaneous intervention.
abstract: OBJECTIVE
  To evaluate the risk and predictors of death in a large population of patients with stable coronary disease treated with percutaneous intervention.
  
  
  RESULTS
  The study population comprised 1,276 patients with chronic angina or silent ischaemia who underwent elective coronary angioplasty. Baseline and in-hospital mortality data were prospectively collected for all patients during the index hospitalisation. Post-discharge outcome was assessed at out-patient clinic, by review of the patients' records, or direct phone contact. Deaths were classified as cardiac and non-cardiac. Age, peripheral arterial disease, congestive heart failure with NYHA class >or= III, triple-vessel disease, and procedural success (i.e. angiographic success for all lesions in the absence of peri-procedural infarction) remained as multivariate independent predictors of death. For the entire population 4-year cumulative all-cause and cardiac mortality were respectively 5.4% and 4.1%. Four-year mortality for patients without any multivariate predictor was 2.4%, while for patients with two or more predictors the death rate was 16.3% after four years.
  
  
  CONCLUSIONS
  Patients with stable coronary disease undergoing percutaneous treatment have an overall low mortality rate after four years. Nevertheless, stable patients comprise a heterogeneous population in terms of risk profile, ranging from patients at very low risk of late death to individuals with a poor long-term prognosis.
authors.affiliation: Service of Interventional Cardiology, Heart Institute (InCor), University of São Paulo Medical School, São Paulo, Brazil.
authors.forename: Pedro A
authors.initials: PA
authors.lastname: Lemos
authors.forename: Carlos A H
authors.initials: CA
authors.lastname: Campos
authors.forename: João L A A
authors.initials: JL
authors.lastname: Falcão
authors.forename: Expedito E
authors.initials: EE
authors.lastname: Ribeiro
authors.forename: Marco A
authors.initials: MA
authors.lastname: Perin
authors.forename: Luiz J
authors.initials: LJ
authors.lastname: Kajita
authors.forename: Antonio
authors.initials: A
authors.lastname: Esteves Filho
authors.forename: Marcus N
authors.initials: MN
authors.lastname: da Gama
authors.forename: Pedro E
authors.initials: PE
authors.lastname: Horta
authors.forename: Gilberto G
authors.initials: GG
authors.lastname: Marchiori
authors.forename: Andre G
authors.initials: AG
authors.lastname: Spadaro
authors.forename: Eulógio E
authors.initials: EE
authors.lastname: Martinez
mesh_terms: D000368:Aged; D015906:Angioplasty, Balloon, Coronary / Q000401:mortality*; D001938:Brazil / Q000453:epidemiology; D002908:Chronic Disease; D003327:Coronary Disease / Q000401:mortality* / Q000628:therapy*; D005260:Female; D017052:Hospital Mortality; D006801:Humans; D053208:Kaplan-Meier Estimate; D008297:Male; D008875:Middle Aged; D010351:Patient Discharge; D016016:Proportional Hazards Models; D011446:Prospective Studies; D018570:Risk Assessment; D012307:Risk Factors; D013997:Time Factors; D016896:Treatment Outcome