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Delayed pseudoaneurysm after renal artery angioplasty
Richard G McWilliams1, Hugh Godfrey, Ali Bakran
1Department of Radiology, Royal Liverpool University Hospital, England, UK. richard@mcwilliams.u-net.com
Purpose:
To report delayed pseudoaneurysm formation after percutaneous renal artery angioplasty.
Case Reports:
A 56-year-old woman succumbed to complications of a ruptured right juxtarenal aortic pseudoaneurysm 2 years after right renal artery stenting for renal impairment. The juxtarenal aorta had been normal on aortography at the time of angioplasty. She gave a history of right-sided back pain that started within 8 months of the angioplasty. A 21-year-old woman with left renal artery stenosis due to fibromuscular dysplasia was treated with balloon angioplasty, after which there was evidence of active extravasation. The completion angiogram, after a period of observation, documented cessation of the leak. Follow-up angiography because of persisting hypertension disclosed a large, asymptomatic, intrarenal pseudoaneurysm that was repaired with bench surgery and autotransplantation.
Conclusions:
We advise that patients with symptoms referable to the site of renal artery intervention and those who have had complicated interventions should have follow-up imaging to exclude pseudoaneurysm formation.