title: Effect of preoperative aneurysm diameter on long-term survival after endovascular aortic aneurysm repair.
abstract: OBJECTIVE
  To investigate the effect of aneurysm size on long-term survival after endovascular repair (EVAR) of abdominal aortic aneurysms (AAAs).
  
  
  METHODS
  Retrospective study of all consecutive patients treated with EVAR for AAA at a single institution.
  
  
  RESULTS
  One hundred and nineteen patients (mean age 71, range 45-91) underwent EVAR during a 4-year period. The mean maximal aneurysm diameter was 58 mm (range 34-93 mm). Mean follow-up was 34 months (range 1-80). Cox regression analysis after controlling for age, renal function, coronary disease, and smoking showed a 4.9-fold higher risk of death for patients with preoperative aneurysm size ≥ 60 mm as compared to patients with aneurysm size <60 mm. No aneurysm-related deaths occurred during the follow-up.
  
  
  CONCLUSIONS
  This present study provides evidence that aneurysm size ≥60 mm is independently associated with worse survival during follow-up.
authors.affiliation: Klinik für Allgemein-, Visceral-, Gefäss- und Thoraxchirurgie, Charité-Universitätsmedizin Berlin, Berlin, Germany. nikolaos.tsilimparis@charite.de
authors.forename: Nikolaos
authors.initials: N
authors.lastname: Tsilimparis
authors.forename: Danae
authors.initials: D
authors.lastname: Mitakidou
authors.forename: Ulrich
authors.initials: U
authors.lastname: Hanack
authors.forename: Astrid
authors.initials: A
authors.lastname: Deussing
authors.forename: Shahram
authors.initials: S
authors.lastname: Yousefi
authors.forename: Ralph I
authors.initials: RI
authors.lastname: Rückert
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D017544:Aortic Aneurysm, Abdominal / Q000000981:diagnostic imaging / Q000401:mortality / Q000601:surgery*; D001027:Aortography / Q000379:methods; D019917:Blood Vessel Prosthesis Implantation / Q000009:adverse effects / Q000295:instrumentation; D016009:Chi-Square Distribution; D057510:Endovascular Procedures / Q000009:adverse effects / Q000295:instrumentation; D005260:Female; D005858:Germany; D006801:Humans; D053208:Kaplan-Meier Estimate; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D016016:Proportional Hazards Models; D012189:Retrospective Studies; D012307:Risk Factors; D013997:Time Factors; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome