title: Validation of Patient Selection for Endovascular Aneurysm Repair or Open Repair of Abdominal Aortic Aneurysm – Single-Center Study.
abstract: BACKGROUND
  To validate the criteria for endovascular aneurysm repair (EVAR) or open repair of abdominal aortic aneurysm (AAA) at Nagoya University Hospital, the results of both treatments were retrospectively compared.
  
  
  RESULTS
  Patient selection for EVAR was primarily based on suitable anatomy, minimum age 75 years, and significant comorbidity. From June 2007 to April 2014, 426 patients were treated via EVAR (EVAR group) and 346 patients were treated with open surgery (OS group). The mortality rates of the EVAR and OS groups were not significantly different (0.2% vs. 1.1%; P=0.33). Patient age, operation time, amount of bleeding, and duration of hospital stay were significantly lower in the EVAR group compared with the OS group. The incidence of comorbidity was higher in the EVAR group compared with the OS group. The incidence of early postoperative complications was significantly higher in the OS group, whereas the incidence of late complications for both groups was similar. The cumulative aneurysm-related survival rates were similar (98.9% vs. 98.5%; P=0.767). The cumulative survival rates and reintervention-free rates at 5 years were lower for the EVAR group (76% vs. 89%, P=0.019; 81% vs. 89%, P=0.046).
  
  
  CONCLUSIONS
  Patient selection practices and criteria for EVAR and open repair at Nagoya University Hospital are generally acceptable.
authors.affiliation: Department of Surgery, Division of Vascular Surgery, Nagoya University Graduate School of Medicine.
authors.forename: Kiyohito
authors.initials: K
authors.lastname: Yamamoto
authors.forename: Kimihiro
authors.initials: K
authors.lastname: Komori
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Banno
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Narita
authors.forename: Akio
authors.initials: A
authors.lastname: Kodama
authors.forename: Masayuki
authors.initials: M
authors.lastname: Sugimoto
mesh_terms: D000368:Aged; D017544:Aortic Aneurysm, Abdominal / Q000401:mortality* / Q000601:surgery*; D018572:Disease-Free Survival; D057510:Endovascular Procedures; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D018579:Patient Selection; D011183:Postoperative Complications / Q000401:mortality; D015996:Survival Rate