Abstract
Cinacalcet is a promising therapy widely used in dialysis patients with hyperparathyroidism resistant to conventional therapy. However, reports regarding the influence of cinacalcet cessation after long-term use on kidney transplantation patients are few. This retrospective observational study included 40 dialysis patients who underwent kidney transplantation. Creatinine, corrected calcium, phosphorus, alkaline phosphatase, and intact parathyroid hormone levels were assessed before and after kidney transplantation according to pretransplant treatment of chronic kidney disease-mineral and bone disorder. Ultrasonography revealed enlargement of the parathyroid in all patients treated with cinacalcet. Although the data at the time of kidney transplantation were comparable, the serum levels of calcium, alkaline phosphatase, and intact parathyroid hormone after kidney transplantation were higher in patients treated with cinacalcet than in those treated without. However, serum phosphate levels in the cinacalcet group were slightly higher at the time of kidney transplantation and significantly lower 3months later. Mineral abnormalities persisted in kidney transplant patients with enlarged parathyroid glands after discontinuation of cinacalcet treatment. Parathyroidectomy should be considered in kidney transplant candidates with the risk of developing refractory hyperparathyroidism after transplantation.
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