Renal interventions after abdominal aortic aneurysm repair using an aortic endograft with suprarenal fixation - 18/08/11
, Matthew Johnson, M.D. c, Jan Namyslowski, M.D. c, Michael Dalsing, M.D. a, Dolores Cikrit, M.D. a, Alan Sawchuk, M.D. a, Shoaib Shafique, M.D. a, Ryan Nachreiner, M.D. a, Elaine O’Brien, R.N. a
Corresponding author. Tel.: +1-704-355-9430; fax: +1-704-355-8192.Abstract |
Background |
Our aim was to determine whether suprarenal fixation in endografts compromises renal artery (RA) flow and whether subsequent RA intervention is precluded by the stent struts.
Methods |
Prospectively acquired data from 104 patients with endovascular aneurysm repair (EVAR) of an abdominal aortic aneurysm using the Zenith endograft (Cook, Inc., Bloomington, IN) were analyzed. The Zenith device uses a 26-mm, uncovered, barbed Z stent for suprarenal function.
Results |
No RA stenosis, occlusion, or infarction resulted from the suprarenal stent. In 3 of 104 (2.9%) patients, RA compromise (2 stenoses, 1 occlusion) was caused by impingement of graft material on the lowermost RA. The 2 RA stenoses were stented successfully at 1 and 7 months post-EVAR. Six of 104 (5.8%) patients developed late stenoses unrelated to the endograft: all were stented successfully from 19 to 36 months after EVAR. One patient with severe RA stenosis had balloon angioplasty pre-EVAR and then was stented electively 6 weeks post-EVAR.
Conclusions |
Our data show that the suprarenal fixation of the Zenith aortic endograft does not cause RA stenosis, occlusion, or infarction, nor does it preclude post-EVAR renal artery intervention.
Le texte complet de cet article est disponible en PDF.Keywords : Aortic endograft, Suprarenal fixation, Renal intervention
Plan
Vol 192 - N° 5
P. 577-582 - novembre 2006 Retour au numéro
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