Acute renal failure after redo thoracoabdominal aortic aneurysm repair in a patient with a solitary kidney: Successful percutaneous treatment

Purpose: To report the successful percutaneous treatment of renal artery st enosis that precipitated renal failure following surgical repair of a thora coabdominal aortic aneurysm (TAAA). Methods and Results: A 70-year-old woman with a solitary kidney became anur ic 2 hours after urgent repair of a symptomatic true aneurysm of the Carrel patch from an 8-year-old TAAA repair. After medical treatment failed, aort ography was performed, identifying complete occlusion of the solitary renal artery. Balloon dilation and implantation of a Palmaz stent restored renal perfusion and improved function. At 6-month follow-up, she was normotensiv e and her creatinine within normal limits. Conclusions: Renal artery stenosis or occlusion is a treatable cause of acu te renal failure after TAAA repair. Percutaneous treatment options are like ly to be better tolerated than surgical revascularization in this patient p opulation.