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Endoleaks after endovascular repair of aortic aneurysm: are they predictable?-initial results

J Görich1, N Rilinger, R Sokiranski

  • 1Departments of Radiology, University of Ulm, Steinhoevelstrasse 9, 89075 Ulm, Germany. johannes.gorich@medizin.uni-ulm.de

Radiology
|February 13, 2001
PubMed

Insights

Predicting endoleaks after aortic aneurysm repair remains challenging. However, visualizing four or more patent lumbar arteries on preoperative computed tomography scans significantly increases the probability of an endoleak.

Area of Science:

  • Vascular Surgery
  • Radiology
  • Medical Imaging

Background:

  • Endoleaks are a common complication following endovascular aneurysm repair (EVAR).
  • Accurate prediction of endoleak risk is crucial for patient management and optimizing EVAR outcomes.

Purpose of the Study:

  • To evaluate the predictability of endoleaks after transfemoral insertion of endoluminal stent-grafts for aortic aneurysms.
  • To identify preoperative factors correlating with endoleak development.

Main Methods:

  • Sixty-eight patients (13 women, 60 men; mean age 69.8 years) underwent EVAR.
  • Follow-up included helical computed tomography (CT) and angiography.
  • Preoperative CT data, including visualization of lumbar arteries, were correlated with endoleak occurrence.

Main Results:

  • Seven endoleaks (10%) were identified in 68 patients.
  • The number of visualized lumbar arteries preoperatively showed a significant correlation with endoleak probability (P <.005).
  • Four or more patent lumbar arteries were present in 71% of patients with lumbar endoleaks, compared to 13% without endoleaks.

Conclusions:

  • Predicting endoleaks with absolute certainty is not yet possible.
  • The patency of four or more lumbar arteries visualized preoperatively via CT is a significant correlating risk factor for endoleaks.
Abstract

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