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Mid-term results of patients undergoing endovascular aortic aneurysm repair
Britt H Tonnessen1, Michael S Conners, W Charles Sternbergh
1Section of Vascular Surgery, Ochsner Clinic Foundation, 1514 Jefferson Hwy., New Orleans, LA 70121, USA.
Background:
The utilization of endovascular aneurysm repair (EAR) is increasing significantly; however, few papers have outlined mid-term outcomes.
Methods:
Patients undergoing EAR with an AneuRx endograft between September 1997 and May 2001 were evaluated. Mean follow-up was 20.7 +/- 11.9 (SD) months.
Results:
In all, 101 EAR devices were successfully deployed in 105 attempts. Four open conversions (2 acute, 2 delayed) were performed for complications of EAR. Technical, clinical, and 1 to 3 year continuing success rates were 75%, 73%, and 78% to 83%. When divided by the median date, significantly fewer patients in the later group required secondary procedures compared with the early group. Vascular insufficiency occurred in 12 patients; 11 were treated with a secondary procedure. For 9 type I and 9 type II persistent endoleaks, secondary procedures were attempted and successful in 10 patients. Of successful EAR deployments, including secondary interventions, 85% demonstrated no persistent leak, rupture, increase in aneurysm size, or migration at most recent follow-up.
Conclusions:
EAR is successful in selected individuals; however, continuing follow-up is of paramount importance.