title: Outcomes after elective aortic aneurysm repair: a nationwide Danish cohort study 2007-2010.
abstract: OBJECTIVE
  To assess outcomes after treatment for asymptomatic abdominal aortic aneurysm (AAA) in Denmark in a period when both open surgery (OR) and endoluminal repair (EVAR) have been routine procedures.
  
  
  METHODS
  We performed a retrospective nationwide cohort study of patients treated for asymptomatic AAA between 2007 and 2010. Data on demographics, procedural data, perioperative complications, length of stay (LOS), 30-day reinterventions and readmissions, late aneurysm and procedure-related complications and mortality were obtained from the Danish Vascular Registry and the Danish National Patient Register.
  
  
  RESULTS
  525 EVAR and 1176 OR for asymptomatic AAA were identified. LOS was shorter after EVAR than OR (4 vs. 7 days, p < .001). During primary hospitalization procedure-related complications (12% vs. 6%) and general complications (21% vs. 8%) were more common after OR than EVAR (p < 0.001). The 30-day reintervention rate was higher for OR than EVAR (18% vs. 6%, p < 0.001), but there was no difference in readmissions within 30 days. During follow-up (mean 29 ± 15 months) aneurysm-related complications after EVAR were outweighed by procedure-related complications after OR.
  
  
  CONCLUSIONS
  Elective AAA repair in Denmark is overall comparable with international results and both perioperative and late outcomes after EVAR of elective AAA are better than the results after OR.
authors.affiliation: Deptartment of Vascular Surgery, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark. louise.de.la.motte@rh.regionh.dk
authors.forename: L
authors.initials: L
authors.lastname: de la Motte
authors.forename: L P
authors.initials: LP
authors.lastname: Jensen
authors.forename: K
authors.initials: K
authors.lastname: Vogt
authors.forename: H
authors.initials: H
authors.lastname: Kehlet
authors.forename: T V
authors.initials: TV
authors.lastname: Schroeder
authors.forename: L
authors.initials: L
authors.lastname: Lonn
mesh_terms: D000368:Aged; D017544:Aortic Aneurysm, Abdominal / Q000601:surgery*; D015331:Cohort Studies; D003718:Denmark; D017558:Elective Surgical Procedures; D057510:Endovascular Procedures; D005260:Female; D006801:Humans; D008297:Male; D012189:Retrospective Studies; D014656:Vascular Surgical Procedures