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Related Experiment Videos

[Intermediate-term complications and problems after endovascular aortic stent prostheses].

T Umscheid1, W J Stelter, P Ziegler

  • 1Chirurgische Klinik, Städtische Klinik Frankfurt-Höchst, Frankfurt/M.

Zentralblatt Fur Chirurgie
|March 7, 2000
PubMed
Summary

Endovascular stentgrafts for aortic aneurysm exclusion showed a 91% primary exclusion rate but concerning midterm complications. Newer grafts offer improved features, suggesting potential for better long-term outcomes in aortic repair.

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Area of Science:

  • Vascular Surgery
  • Medical Device Technology
  • Aortic Disease Management

Background:

  • Endovascular stentgrafts have emerged as an alternative to conventional open repair for aortic aneurysms.
  • Early experiences with commercially available stentgrafts presented challenges and limitations.

Purpose of the Study:

  • To evaluate the midterm outcomes of endovascular stentgraft treatment for aortic aneurysm exclusion.
  • To identify common midterm complications associated with early stentgraft designs.

Main Methods:

  • Retrospective analysis of 321 patients treated with endovascular stentgrafts between August 1994 and December 1998.
  • Assessment of primary exclusion rates, leakage, mortality, and midterm complications.

Main Results:

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  • A primary exclusion rate of 91% was achieved, with 8.7% primary leakage and 3.7% hospital mortality.
  • Common midterm complications included secondary endoleaks (60 cases) and graft limb occlusion (37 occurrences).
  • 50% of secondary endoleaks and most graft limb occlusions were treated, with varying success.

Conclusions:

  • Midterm results of early commercially available endografts for aortic aneurysm repair are not yet satisfactory compared to conventional methods.
  • Recent advancements in graft design, including improved kink resistance and reduced modularity, show promise for enhanced durability and reduced complications.