title: Long-term results of open stent-grafting using a Matsui-Kitamura stent to treat thoracic aortic aneurysm.
abstract: OBJECTIVE
  We describe a retrospective study of initial and long-term outcomes with an open stent grafting (OSG) with a Matsui-Kitamura stent for treating thoracic aortic aneurysm.
  
  
  METHODS
  Between August 2005 and September 2013, 50 patients with aortic arch disease extending to the descending aorta underwent OSG. Circulatory arrest with total cardiopulmonary bypass and selective cerebral perfusion were used, and the aorta was transected between the brachiocephalic and left subclavian artery. The stent-graft was inserted, sutured to a transected aortic edge, and anastomosed to a four-branched arch graft. Preoperative, operative, and short- and long-term postoperative data were obtained from the patients' medical records.
  
  
  RESULTS
  The perioperative (within 30 days) mortality rate was 8%. Two patients (4%) had a stroke and 5 patients (10%) had a spinal cord injury resulting in paraplegia or paraparesis (1 patient each) or transient paraplegia (3 patients). Actuarial survival rates at 1, 3, 5, and 7 years postoperatively were 87.8%, 78.3%, 70.7%, and 65.3%, respectively; the rates of freedom from an aortic event were 100%, 89.1%, 82.2%, and 74.7%. There were no complications related to use of the stent-graft.
  
  
  CONCLUSIONS
  Our OSG method provided durable results in patients treated for thoracic aortic aneurysm, with few adverse events.
authors.affiliation: Departments of Cardiovascular Surgery and Pediatric Cardiac Surgery, Southern Tohoku General Hospital, Koriyama, Fukushima, Japan.
authors.forename: Hirofumi
authors.initials: H
authors.lastname: Midorikawa
authors.forename: Megumu
authors.initials: M
authors.lastname: Kanno
authors.forename: Takashi
authors.initials: T
authors.lastname: Takano
authors.forename: Kouyu
authors.initials: K
authors.lastname: Watanabe
authors.forename: Kyohei
authors.initials: K
authors.lastname: Ueno
authors.forename: Takashi
authors.initials: T
authors.lastname: Ono
authors.forename: Kouichi
authors.initials: K
authors.lastname: Satou
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000714:Anastomosis, Surgical; D017545:Aortic Aneurysm, Thoracic / Q000175:diagnosis / Q000401:mortality / Q000601:surgery*; D001027:Aortography / Q000379:methods; D001807:Blood Vessel Prosthesis; D019917:Blood Vessel Prosthesis Implantation / Q000009:adverse effects / Q000295:instrumentation* / Q000401:mortality; D018572:Disease-Free Survival; D057510:Endovascular Procedures / Q000009:adverse effects / Q000295:instrumentation* / Q000401:mortality; D005260:Female; D006801:Humans; D053208:Kaplan-Meier Estimate; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000209:etiology; D011474:Prosthesis Design; D012189:Retrospective Studies; D015607:Stents; D013997:Time Factors; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome