title: [Percutaneous transluminal coronary angioplasty in patients with prior surgical revascularization].
abstract: OBJECTIVE
  To show the author's experience with percutaneous transluminal coronary angioplasty (PTCA) in patients with prior coronary bypass surgery.
  
  
  METHODS
  Between January 1989 and January 1991, 629 PTCA in 572 patients were performed. Forty-eight had previous revascularization surgery with interval range of 4 days to 10 years. The PTCA sites were divided in three groups: A) native arterial segments, not affected by surgery (26 patients); B) native arterial segments proximal (4 patients) and distal (2 patients) to graft anastomosis; C) in the coronary vein graft (16 patients).
  
  
  RESULTS
  The overall primary success was 78%. In groups B and C, 16 procedures were successfully dilated (72%). All failures in group C were due to unstable problems in reaching (4 patients) or crossing (2 patients) the stenosis with the balloon. There was one death in group A and another in group C.
  
  
  CONCLUSIONS
  Angioplasty is an effective alternative for treatment of recurrent ischemia in patients with prior myocardial revascularization surgery and in early results are comparable to the general angioplasty population.
authors.affiliation: Instituto do Caração da Santa Casa de Ribeirão Preto, SP.
authors.forename: C
authors.initials: C
authors.lastname: Greguolo
authors.forename: J L
authors.initials: JL
authors.lastname: dos Santos
authors.forename: E de M
authors.initials: Ede M
authors.lastname: Ayres Neto
authors.forename: L A
authors.initials: LA
authors.lastname: Netto
authors.forename: L E
authors.initials: LE
authors.lastname: Muniz
authors.forename: S B
authors.initials: SB
authors.lastname: Lopes
authors.forename: O de C
authors.initials: Ode C
authors.lastname: Freitas
authors.forename: H J
authors.initials: HJ
authors.lastname: Isaac
authors.forename: L A
authors.initials: LA
authors.lastname: Teno
authors.forename: N P
authors.initials: NP
authors.lastname: de Camargo
mesh_terms: D000328:Adult; D000368:Aged; D015906:Angioplasty, Balloon, Coronary / Q000379:methods; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D017202:Myocardial Ischemia / Q000628:therapy*; D009204:Myocardial Revascularization; D011183:Postoperative Complications / Q000628:therapy*; D012074:Remission Induction; D013997:Time Factors; D017211:Treatment Failure
vernacular_title: Angioplastia coronária transluminal percutânea em pacientes com revascularização cirúrgica prévia.