title: [Midterm results of thoracic aortic dissection endovascular repair in conjunctions with the location of Adamkiewicz artery].
abstract: OBJECTIVE
  To evaluate the effects of using longer xenografts in conjunctions with the location of Adamkiewicz artery (AKA) on midterm outcomes of endovascular treatment for thoracic aortic dissection.
  
  
  METHODS
  From March 2005 to September 2011, 217 patients with type B dissection were recruited. There were 143 males and 74 females with a mean age of 65 ± 11 years. Among them, 43 patients were from Fifth Affiliated Hospital of Sun Yat-Sen University while another 174 patients from Affiliated Zhongshan Hospital of Fudan University. They were divided into 2 groups according to whether AKA was identified or not pre-operatively. Endovascular repairs were performed for all patients. Distal landing levels of xenografts were recorded. The thrombosis of false lumen and the complications of spinal cord injury and endoleak were analyzed.
  
  
  RESULTS
  AKA was detected in 121 (55.8%) patients (group A) but not in 96 (44.2%) patients (group B). According to the levels of AKA, the patients of group A obtained the stabilization of affected thoracic aorta over a longer distance. And the ratio of patients with distal landing levels at T8-T10 was significantly higher than in group B (59.5% vs 12.5%, χ² = 49.85, P < 0.01). Also, during the follow-up period of 7.3 months, the ratio of patients with total thrombosis of false lumen in group A was significantly higher than that in group B (32.1% vs 19.1%, χ² = 4.34, P < 0.05).
  
  
  CONCLUSIONS
  During the endovascular repair of thoracic aortic dissection, selecting a longer device may provide a better structural stability of affected aorta and promote false lumen thrombosis.
authors.affiliation: Department of Vascular Surgery, Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China.
authors.forename: Ying-bin
authors.initials: YB
authors.lastname: Jia
authors.forename: Jian
authors.initials: J
authors.lastname: Li
authors.forename: Yong-hui
authors.initials: YH
authors.lastname: Su
authors.forename: Jie-fei
authors.initials: JF
authors.lastname: Ma
authors.forename: Xiao-dong
authors.initials: XD
authors.lastname: Guan
authors.forename: Bai-meng
authors.initials: BM
authors.lastname: Zhang
mesh_terms: D000368:Aged; D000784:Aortic Dissection / Q000000981:diagnostic imaging* / Q000601:surgery; D000792:Angiography / Q000379:methods*; D001013:Aorta, Thoracic / Q000000981:diagnostic imaging; D017545:Aortic Aneurysm, Thoracic / Q000000981:diagnostic imaging* / Q000601:surgery; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013116:Spinal Cord / Q000000981:diagnostic imaging; D015607:Stents; D014057:Tomography, X-Ray Computed