title: Elective Matsui-Kitamura stent graft repair for descending thoracic aortic aneurysm and chronic type-B aortic dissection.
abstract: BACKGROUND
  The position of thoracic endovascular aortic repair (TEVAR) compared to open surgery of the thoracic aorta has changed. This study evaluates outcomes after TEVAR performed electively using our original Matsui-Kitamura stent graft (MKSG) to treat descending thoracic aortic aneurysms (dTAA) and chronic type-B aortic dissection (type-B AD), and elucidates the risk factors for postoperative spinal cord ischemia (SCI).
  
  
  METHODS
  TEVAR was performed using an MKSG in 66 patients (age: 70.8+/-9.2 years). The underlying etiology was atherosclerotic change in 39 patients, chronic type-B aortic dissection in 23 patients, and other in 4 patients.
  
  
  RESULTS
  No perioperative deaths occurred. Three patients showed temporary paralysis due to postoperative SCI. Abdominal aortic aneurysm (AAA) surgery was a risk factor for postoperative SCI (P=0.04). The 5-year survival rate was 81.2%.
  
  
  CONCLUSIONS
  The present study demonstrated that TEVAR of patients with dTAA and chronic type-B AD using an MKSG can be performed with high technical success rates and low rates of severe acute complications. AAA surgery was a risk factor for postoperative SCI.
authors.affiliation: General & Cardiothoracic Surgery, Kanazawa University, Kanazawa, Japan. ohtake@med.kanazawa-u.ac.jp
authors.forename: H
authors.initials: H
authors.lastname: Ohtake
authors.forename: J
authors.initials: J
authors.lastname: Sanada
authors.forename: K
authors.initials: K
authors.lastname: Kimura
authors.forename: O
authors.initials: O
authors.lastname: Matsui
authors.forename: G
authors.initials: G
authors.lastname: Watanabe
mesh_terms: D000368:Aged; D000784:Aortic Dissection / Q000401:mortality / Q000601:surgery*; D017545:Aortic Aneurysm, Thoracic / Q000401:mortality / Q000601:surgery*; D001807:Blood Vessel Prosthesis; D019917:Blood Vessel Prosthesis Implantation / Q000009:adverse effects / Q000295:instrumentation* / Q000401:mortality; D002908:Chronic Disease; D018572:Disease-Free Survival; D017558:Elective Surgical Procedures; D005260:Female; D006801:Humans; D007564:Japan; D053208:Kaplan-Meier Estimate; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D010243:Paralysis / Q000209:etiology; D011474:Prosthesis Design; D012189:Retrospective Studies; D018570:Risk Assessment; D012307:Risk Factors; D020760:Spinal Cord Ischemia / Q000209:etiology; D015607:Stents; D013997:Time Factors; D016896:Treatment Outcome