Long-term peritoneal dialysis followed by kidney transplantation for Takayasu arteritis: a case report

BACKGROUND: Takayasu arteritis (TA) is a chronic vasculitis of unknown etiology that primarily affects large vessels. Although renal involvement is frequent in TA, patients with TA undergoing renal replacement therapy, especially long-term peritoneal dialysis (PD) and kidney transplantation (KTx), are rarely reported. We herein present the case of an elderly patient with TA treated by PD for more than 5 years and underwent KTx thereafter. CASE PRESENTATION: A 69-year-old female diagnosed with TA at the age of 19 was treated by PD for seven and a half years for end-stage renal disease due to TA. Dialysate-to-plasma ratio of creatinine, which was well maintained during this period, reflected the efficacy of long-term PD. However, her residual renal function declined; she developed malnutrition, inflammation, and atherosclerosis syndrome and underwent living-related KTx from her husband. Due to the total occlusion of the external iliac arteries with compensatory development of the internal iliac arteries, the right internal iliac artery was used as the anastomosis site. After KTx, the patient developed chronic active antibody-mediated rejection; however, the graft function was maintained throughout the follow-up period. Despite severe aortic calcification and intermittent claudication in the legs, her condition did not worsen, and the blood flow of the graft was preserved. CONCLUSIONS: The current case illustrating the success of long-term PD and living-related KTx in maintaining kidney function in an elderly patient with TA is the first to demonstrate the potential of PD and KTx as feasible options for renal replacement therapy in TA accompanied by severe cardiac involvement.