title: Clinical Outcomes for Endovascular Repair of Thoracic Aortic Disease Using the Seal Thoracic Stent Graft: A Korean Multicenter Retrospective Study.
abstract: OBJECTIVE
  To investigate the midterm outcomes of thoracic endovascular aneurysm repair (TEVAR) with the use of the Seal stent graft for four categories of thoracic aortic disease.
  
  
  METHODS
  This retrospective multicenter study evaluated the records of 216 Korean patients who underwent TEVAR with the Seal stent graft during 2007-2010. The study outcomes were (i) perioperative death, (ii) endoleak, (iii) repeat intervention, (iv) aortic-related death, and (v) all sudden unexplained late deaths.
  
  
  RESULTS
  The overall technical success rate was 94% (203 cases), and the disease-specific rates were 97% (88 cases) for aneurysms, 96% (71 cases) for dissections, 82% (32 cases) for traumatic aortic disease, and 100% (12 cases) for intramural hematoma and/or penetrating aortic ulcer. There were 6 acute surgical conversions (2 for aneurysms and 4 for dissections). There were 18 endoleaks, 4 retrograde ascending aortic dissections, and 6 stent graft-induced new entries. The 1-, 3-, and 5-year overall survival rates were 93% ± 3, 90% ± 4, and 90% ± 4, respectively.
  
  
  CONCLUSIONS
  TEVAR with the Seal thoracic stent graft provided a high technical success rate and low mortality and complication rates during midterm follow-up. However, additional long-term studies are needed to evaluate the durability and late complications associated with this device.
authors.affiliation: Department of Radiology, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea.
authors.forename: Myung Gyu
authors.initials: MG
authors.lastname: Song
authors.affiliation: Department of Radiology, Kangdong Seong-Sim Hospital, Hallym University College of Medicine, Seoul, Korea. Electronic address: ykchoman@naver.com.
authors.forename: Young Kwon
authors.initials: YK
authors.lastname: Cho
authors.affiliation: Department of Radiology and Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Do Yun
authors.initials: DY
authors.lastname: Lee
authors.affiliation: Department of Radiology, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Korea.
authors.forename: Sung Bum
authors.initials: SB
authors.lastname: Cho
authors.affiliation: Department of Radiology and Research Institute of Radiology, Asan Medical Center, Ulsan University College of Medicine, Seoul, Korea.
authors.forename: Hyun-Ki
authors.initials: HK
authors.lastname: Yoon
authors.affiliation: Department of Radiology, Kyung Hee University Medical Center, Kyung Hee University College of Medicine, Seoul, Korea.
authors.forename: Se Hwan
authors.initials: SH
authors.lastname: Kwon
authors.affiliation: Department of Radiology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.
authors.forename: Hyo-Cheol
authors.initials: HC
authors.lastname: Kim
authors.affiliation: Department of Radiology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea.
authors.forename: Chang Jin
authors.initials: CJ
authors.lastname: Yoon
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D017545:Aortic Aneurysm, Thoracic / Q000401:mortality / Q000601:surgery*; D019917:Blood Vessel Prosthesis Implantation / Q000379:methods* / Q000401:mortality; D057510:Endovascular Procedures / Q000379:methods* / Q000401:mortality; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000401:mortality / Q000628:therapy; D056910:Republic of Korea / Q000453:epidemiology; D012189:Retrospective Studies; D015607:Stents; D016896:Treatment Outcome