title: [Impact of Patent False Lumen at the Descending Aorta after Total Aortic Replacement for Acute type A Aortic Dissection].
abstract: OBJECTIVE
  Acute type A aortic dissection remains one of the most challenging diseases facing cardiovascular surgeons. It is associated with high mortality and morbidity. However, prevention of disease process progression in the residual dissected aorta is an important aspect of the patient's long-term outcome. The aim of this study was to examine the impact of patent false lumen at the descending aorta after total arch replacement for acute type A aortic dissection.
  
  
  METHODS
  Between December 1994 and August 2014, a total of 145 patients underwent total arch replacement for acute type A aortic dissection. The hospital mortality was 5.5%.Of these 145 patients, 33 had patent false lumen at the descending aorta after surgery, and 94 had thrombosed false lumen. The perioperative variables and late results were statistically analyzed.
  
  
  RESULTS
  The incidence of residual thoracic patent false lumen was 26.0%.No significant difference was observed in the cumulative survival rate between groups. The patent false lumen group was associated with significant higher risk of the descending aortic event than the thrombosed group. By multivariate analysis, younger age and non-resection of the primary tear were significant prospective factors for the patent false lumen at the descending aorta.
  
  
  CONCLUSIONS
  The patent false lumen at the descending aorta was associated with the late aortic critical events after total arch replacement for aortic dissection.
authors.affiliation: Division of Cardiovascular Surgery, Funabashi Municipal Medical Center, Heart and Vascular Institute, Funabashi, Japan.
authors.forename: Kenji
authors.initials: K
authors.lastname: Mogi
authors.forename: Manabu
authors.initials: M
authors.lastname: Sakurai
authors.forename: Anan
authors.initials: A
authors.lastname: Nomura
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Wakabayashi
authors.forename: Masahiko
authors.initials: M
authors.lastname: Fujii
authors.forename: Yoshiharu
authors.initials: Y
authors.lastname: Takahara
mesh_terms: D000208:Acute Disease; D000784:Aortic Dissection / Q000601:surgery*; D001013:Aorta, Thoracic / Q000601:surgery*; D017545:Aortic Aneurysm, Thoracic / Q000601:surgery*; D001807:Blood Vessel Prosthesis; D057510:Endovascular Procedures; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D019919:Prosthesis Implantation; D016896:Treatment Outcome