A 27-year-old female underwent concomitant aortic valve replacement and reconstruction of the right renal artery. She was diagnosed as aortitis syndrome with AR and 90% stenosis of the right renal artery by angiography. PRA were high, Ccr value was low, and renogram showed non-functioning pattern in the right kidney though normal pattern in the left. After CRP value was decreased by predonisolone, the operation was done in the inactive stage. Postoperative angiography showed good aortic valve function and patent renal artery graft. Postoperative PRA and Ccr became normal and the renogram was improved. Based on the result we recommended simultaneous operation can be done with minimal risk.