A case is described of the staged surgical repair of thoracic aortic aneurysm after revascularization of single functioning ischemic kidney of a 68 year old man. A hitological evaluation of renal function was obtained before renal revascularization, which encouraging us to perform the repair of thoracic aortic aneurysm with less risk of post-surgical acute renal failure. In case of single ischemic kidney, renal revascularization should be preceded to other major surgeries in order to prevent renal shut down.