title: Is the endovascular procedure an option for treatment of cronic type B aortic dissections?
abstract: OBJECTIVE
  Questions regarding the specific patient/disease that should be submitted to the endovascular procedure still remain unclear. The purpose of this report is to evaluate the endovascular treatment in chronic type B aortic dissections.
  
  
  METHODS
  Between 2003 and 2006, 11 patients with chronic type B aortic dissection were submitted to endovascular procedure through femoral artery. All of them were monitored with CT within 6 months, 1 year and afterwars anually. We prospectively evaluated false lumen patency and thoracic and abdominal aortic diameters in each time point. The data comparisons were made using Anova and chi-square tests with SPSS 13.
  
  
  RESULTS
  The endovascular stent-graft deployment was technically successful for all patients, with no hospital mortality. During the follow-up period the false lumen flows remained persistent in the thorax in 27.3% of the patients and in the abdomen in 81.8%. However, in all patients, in both segments, the aorta diameter was not significantly changed in size and shape.
  
  
  CONCLUSIONS
  Despite the small number of studied patients, the endovascular procedure for chronic type B aortic dissections does not appear to be an option for the treatment of these patients.
authors.affiliation: General Cardiopaties Surgical Unit - Faculty of Medicine - University of São Paulo.
authors.forename: Ricardo Ribeiro
authors.initials: RR
authors.lastname: Dias
authors.forename: Gustavo
authors.initials: G
authors.lastname: Judas
authors.forename: Marco A P
authors.initials: MA
authors.lastname: Oliveira
authors.forename: Luiz M S
authors.initials: LM
authors.lastname: Malbouisson
authors.forename: Alfredo I
authors.initials: AI
authors.lastname: Fiorelli
authors.forename: Noedir A G
authors.initials: NA
authors.lastname: Stolf
mesh_terms: D000328:Adult; D000368:Aged; D000784:Aortic Dissection / Q000000981:diagnostic imaging / Q000601:surgery*; D017544:Aortic Aneurysm, Abdominal / Q000000981:diagnostic imaging / Q000601:surgery*; D017545:Aortic Aneurysm, Thoracic / Q000000981:diagnostic imaging / Q000601:surgery*; D019917:Blood Vessel Prosthesis Implantation / Q000592:standards*; D002908:Chronic Disease; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography; D015607:Stents; D016896:Treatment Outcome