title: [Coronary angioplasty in patients with restenosis. Characterization of clinical and angiographic profiles, hospital clinical course, and implications for the selection of patients].
abstract: OBJECTIVE
  To define the clinical and angiographic profile of patients undergoing to a 2nd or a 3rd coronary angioplaty (PTCA) for the treatment of restenosis, and assess the safety and efficacy of redilatation.
  
  
  METHODS
  Patients submitted to PTCA for a 1st (1stRE) or a 2nd (2ndRE) restenosis, from Jan/1980 through Dec/1993, were retrospectively identified, and compared to those undergoing to PTCA for de novo lesions (DN).
  
  
  RESULTS
  A total of 5,736 underwent to dilatation of primary lesions, 610 of a 1stRE, and 64 of a 2ndRE. Patients with restenotic lesions had a higher prevalence of diabetes, smoking, history of prior infarction (1stRE e 2ndRE) and hyperlipidemia (2ndRE) as compared with primary lesions (p < 0.05). Besides patients with a 2ndRE had a higher incidence of left ventricular dysfunction, as compared to those with DN or a 1stRE (31.3% with EF < 45% in group 2ndRE, vs 19.8% and 23.1% in groups 1stRE and DN, respectively, p < 0.05). Primary success, infarct rate and mortality were similar in all groups, but emergency bypass surgery was significantly higher in the DN (2.1% vs 0.8% in 1stRE and 0% in 2ndRE, p < 0.05).
  
  
  CONCLUSIONS
  Restenosis can be effectively treated by redilatation. Patients with clinical and angiographic features predisposing to further recurrence can be better treated with other interventions (i.e., coronary stents, bypass surgery).
authors.affiliation: Instituto Dante Pazzanese de Cardiologia, São Paulo.
authors.forename: G L
authors.initials: GL
authors.lastname: Nunes
authors.forename: M P
authors.initials: MP
authors.lastname: Centemero
authors.forename: F
authors.initials: F
authors.lastname: Feres
authors.forename: I M
authors.initials: IM
authors.lastname: Pinto
authors.forename: A
authors.initials: A
authors.lastname: Chaves
authors.forename: L A
authors.initials: LA
authors.lastname: Mattos
authors.forename: L F
authors.initials: LF
authors.lastname: Tanajura
authors.forename: G
authors.initials: G
authors.lastname: Maldonado
authors.forename: M
authors.initials: M
authors.lastname: Cano
authors.forename: A G
authors.initials: AG
authors.lastname: Sousa
mesh_terms: D015906:Angioplasty, Balloon, Coronary; D003324:Coronary Artery Disease / Q000628:therapy*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D018579:Patient Selection; D011379:Prognosis; D012008:Recurrence; D012189:Retrospective Studies
vernacular_title: Angioplastia coronária em pacientes com lesões reestenóticas. Caracterização do perfil clínico e angiográfico, evolução hospitalar e implicações para seleção de pacientes.