sac behavior after endovascular abdominal aortic aneurysm repair with the Excluder low-permeability endoprosthesis

Aortic Aneurysm


Long-term sac behavior after endovascular abdominal aortic aneurysm repair with the Excluder low-permeability endoprosthesis


Hogg ME, Morasch MD, Park T, et al (Northwestern Univ, Chicago, IL; Yonsei Univ, Seoul, Korea; et al) J Vasc Surg 53:1178–1183, 2011§



M.A. Passman, MD



Evidence Ranking


• B



Expert Rating


• 2



Abstract



Purpose


Sac regression is a surrogate marker for clinical success in endovascular aneurysm repair (EVAR) and has been shown to be device-specific. The low porosity Excluder endograft (Excluder low-permeability endoprosthesis [ELPE]; W. L. Gore & Associates Inc, Flagstaff, Ariz) introduced in 2004 was reported in early follow-up to be associated with sac regression rates similar to other endografts, unlike the original Excluder which suffered from sac growth secondary to fluid accumulation in the sac. The purpose of this study was to determine whether this behavior is durable in mid-term to long-term follow-up.



Methods


Between July 2004 and December 2007, 301 patients underwent EVAR of an abdominal aortic aneurysm (AAA) with the ELPE at two institutions. Baseline sac size was measured by computed tomography (CT) scan at 1 month after repair. Follow-up beyond 1 year was either with a CT or ultrasound scan. Changes in sac size ≥5 mm from baseline were determined to be significant. Endoleak history was assessed with respect to sac behavior using χ2 and logistic regression analysis.

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Apr 1, 2017 | Posted by in CARDIOLOGY | Comments Off on sac behavior after endovascular abdominal aortic aneurysm repair with the Excluder low-permeability endoprosthesis

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