Renal artery occlusion following endovascular abdominal aortic aneurysm repair with suprarenal fixation is uncommon. We report one patient who was found to develop renal artery occlusion and parenchymal infarction 6 months after repair using an endovascular graft with suprarenal fixation. Our patient underwent emergent endovascular repair of a symptomatic 6 cm abdominal aortic aneurysm. The covered portion of the endograft was inadvertently deployed well below the renal artery orifices. At the completion of the procedure both renal arteries were confirmed to be patent. One month postoperatively, a computed tomographic (CT) scan showed exclusion of the aortic sac and normal enhancement of both kidneys. At 6 months, the patient was found to have elevated serum creatinine levels despite having no clinical symptoms. CT scanning revealed a nonenhancing left kidney, and angiography demonstrated an occlusion of the left renal artery. A barb welded to the bare metal stent appeared to be impinging on the renal artery. We believe that renal artery occlusion after endovascular repair can occur due to repetitive injury to the renal artery orifice from barbs welded to the bare metal stent. To our knowledge, this is the first reported case of renal artery occlusion caused by repetitive injury from transrenal fixation systems.
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