title: Frequency and outcome of re-interventions after endovascular repair for abdominal aortic aneurysm: a prospective cohort study.
abstract: OBJECTIVE
  To describe frequency, type, and outcome of re-intervention after endovascular aortic aneurysm repair (EVAR).
  
  
  METHODS
  Between September 1996 and December 2003, 308 patients were treated, with data collected prospectively. No patient was lost to follow up, but two were excluded (one primary conversion, and one post-operative death). Vanguard, Talent, Excluder, Zenith, and Quantum devices were used. Follow up required a CT scan before discharge. Initially, a CT scan was done at each follow up. Subsequently, we used duplex ultrasound and abdominal X-ray, with CT scan used selectively.
  
  
  RESULTS
  Mean follow-up was 36+/-22 months. Re-interventions were required in 47 (15%) patients, 31 (66%) elective and 16 (34%) emergency cases. In 32 patients, the primary re-intervention was successful; in 15 patients an additional 13 secondary and four tertiary re-interventions were required. A total of 72 adjunctive manoeuvres were performed: 49 endovascular (68%) and 23 open (32%). The success of endovascular re-interventions was 80%. The success of open re-interventions was 96%. Open conversions were required in nine patients (3%). There was no mortality.
  
  
  CONCLUSIONS
  EVAR was associated with a low burden of re-interventions, with only 15% patients requiring re-intervention. Our long-term follow up, without regular CT, was simple and effective.
authors.affiliation: Department of Surgery, University Hospital Groningen, Groningen, The Netherlands.
authors.forename: E L G
authors.initials: EL
authors.lastname: Verhoeven
authors.forename: I F J
authors.initials: IF
authors.lastname: Tielliu
authors.forename: T R
authors.initials: TR
authors.lastname: Prins
authors.forename: C J A M
authors.initials: CJ
authors.lastname: Zeebregts
authors.forename: M G
authors.initials: MG
authors.lastname: van Andringa de Kempenaer
authors.forename: C S
authors.initials: CS
authors.lastname: Cinà
authors.forename: J J A M
authors.initials: JJ
authors.lastname: van den Dungen
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D017544:Aortic Aneurysm, Abdominal / Q000000981:diagnostic imaging / Q000601:surgery*; D001019:Aortic Rupture / Q000000981:diagnostic imaging / Q000601:surgery; D001807:Blood Vessel Prosthesis; D018572:Disease-Free Survival; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000209:etiology / Q000401:mortality / Q000601:surgery; D011446:Prospective Studies; D011474:Prosthesis Design; D012086:Reoperation; D015607:Stents; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D014656:Vascular Surgical Procedures