Abstract
Endovascular aneurysm repair (EVAR) of abdominal aortic aneurysms (AAAs) that also involve the common iliac artery (CIA) typically is accomplished by endograft limb extension into the external iliac artery (EIA). In order to prevent endoleak, the internal iliac artery (IIA) is usually embolized, or alternatively a branched limb is deployed. However, IIA embolization is associated with longer operative time and increased use of contrast and radiation. It has been our practice not to routinely coil embolize the IIA. The purpose of this study was to present the midterm outcomes of this approach. Between April 1997 and June 2010, 137 patients (130 men; mean age, 70.9 years; range, 45-92 years) underwent EVAR of their AAA and had IIA coverage without coil embolization in 112 patients (no embolization [NE] group) and after coil embolization in 25 patients (coil embolization [CE] group). Anatomic indications for coverage of the IIA without coil embolization included presence of adequate sealing in the distal 5 mm of the CIA, or sealing ring at the origin of the CIA, or IIA diameter <5 mm. Preoperative mean AAA size was 60 ± 14 mm, and mean CIA diameter was 38 ± 13 mm. Postoperative computed tomography (CT) scanning was performed at 1,...Continue Reading
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