Early results from a canadian multicenter prospective registry of the endurant stent graft for endovascular treatment of abdominal aortic aneurysms

Kylie E. Kvinlaug, D. Kirk Lawlor, Thomas L. Forbes, Rod Willoughby, Kent S. MacKenzie, Guy DeRose, Marc M. Corriveau, Oren K. Steinmetz

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

Purpose: To report the early results of a multicenter registry of endovascular aneurysm repair (EVAR) using the Endurant stent-graft. Methods: Patients having elective treatment of infrarenal abdominal aortic aneurysm (AAA) with the Endurant stent-graft at 3 Canadian centers were enrolled in a prospective registry between September 2008 and January 2010. In the 16-month period, 111 patients (90 men; mean age 75 years, range 53-93) were registered. Thirty-seven (33.3%) patients had challenging anatomy: short proximal aortic necks (n=17), large diameter (>28 mm) aortic necks (n=4), angulated (>60°) necks (n=3), and small (<15 mm) external iliac arteries (n=21). Outcomes evaluated included survival, endoleak, aneurysm expansion >5 mm, secondary intervention, stent-graft migration, and graft thrombosis. Results: The overall technical success rate was 100%. Nineteen (17.1%) patients experienced perioperative complications. After a mean follow-up of 6 months (range 0.1-16), mortality in the series was 4.5%: 1 perioperative death (multisystem organ failure) and 4 (3.6%) late deaths (3 cardiac, 1 cancer). Clinical and imaging follow-up past the perioperative period were available in 107 (96.4%) and 99 (89.2%) patients, respectively. Among the latter, 9 (9.1%) had a type II endoleak on the first scan; 4 resolved spontaneously. Three (3.0%) patients developed graft limb thrombosis in follow-up; one required an intervention. There was no graft migration, aneurysm expansion, secondary intervention for endoleak, aneurysm rupture, or conversion. Conclusion: Early results from this prospective multicenter registry indicate that the Endurant stent-graft is a safe option for elective EVAR in selected AAA patients. Longer follow-up is required to determine the durability of these outcomes.

Original languageEnglish
Pages (from-to)58-66
Number of pages9
JournalJournal of Endovascular Therapy
Volume19
Issue number1
DOIs
StatePublished - 2012
Externally publishedYes

Keywords

  • Abdominal aortic aneurysm
  • Complications
  • Endoleak
  • Endovascular aneurysm repair
  • Mortality
  • Outcome analysis
  • Stent-graft

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