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Radiology, Vol 209, 111-116, Copyright © 1998 by Radiological Society of North America

ARTICLES

Aortoiliac aneurysms: endoluminal repair--clinical evidence for a fully supported stent-graft

JE Silberzweig, ML Marin, LH Hollier, HA Mitty, RE Parsons, JM Cooper and J Ahn
Department of Radiology, Mount Sinai Medical Center, New York, NY, USA.

PURPOSE: To evaluate aortoiliac aneurysms repaired with endovascular stent-grafts complicated by hemodynamically significant graft stenosis. MATERIALS AND METHODS: Fifty-four patients (52 men, two women; age range, 41-90 years; mean age, 75 years) with aneurysms of the infrarenal aorta (n = 36) or iliac artery (n = 18) underwent repair by means of placement of an endovascular stent-graft. Technical success was evaluated angiographically during and after placement. At follow-up (range, 12-44 months), all patients underwent sequential duplex ultrasonography, helical computed tomography, and physical examination. RESULTS: Stent-grafts were placed successfully in all cases. Stenosis at the internal iliac arterial origin was identified at angiography in 17 patients (31%). Supplemental intragraft stents were placed in 11 patients, and stent-graft angioplasty alone was performed in one patient. Intragraft stents were placed percutaneously in five patients when stenosis was discovered during follow-up. CONCLUSION: Supplemental intragraft stents were required in 31% of aortoiliac endovascular stent- grafts to correct stent-graft stenosis and preserve long-term function. Placement of a fully supported stent-graft is necessary to repair an aortoiliac aneurysm.


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