Early intervention with intravenous or pulse oral vitamin D therapy is more effective in the treatment of secondary hyperparathyroidism

Therapeutic Apheresis and Dialysis : Official Peer-reviewed Journal of the International Society for Apheresis, the Japanese Society for Apheresis, the Japanese Society for Dialysis Therapy
Shunsuke YamadaMitsuo Iida

Abstract

The K/DOQI clinical practice guidelines recommend vitamin D therapy should be started when the intact parathyroid hormone (iPTH) exceeds 300 pg/mL in patients with secondary hyperparathyroidism. To examine whether the effect of vitamin D therapy on mineral metabolism and parathyroid gland growth varies according to the stage of secondary hyperparathyroidism and iPTH level, 47 patients with secondary hyperparathyroidism received either intravenous or pulse oral vitamin D therapy. The patients were divided into two groups based on the iPTH level at the start of vitamin D therapy: the P(<300) group (N = 23) with iPTH <300 pg/mL; and the P(>or=300) group (N = 24) with iPTH >or=300 pg/mL. We examined serial changes in several serum mineral parameters and parathyroid gland volume and the cumulative incidence of parathyroidectomy in the first two years. Serum calcium, phosphorus, calcium-phosphorus product, and iPTH levels of the P(>or=300) group were significantly higher than those of the P(<300) group, and could not be maintained within the target ranges set by the K/DOQI guidelines. In contrast, the serum levels of phosphorus, calcium-phosphorus product, and iPTH were maintained within the target ranges and the parathyroid gland di...Continue Reading

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Citations

Apr 9, 2015·Therapeutic Apheresis and Dialysis : Official Peer-reviewed Journal of the International Society for Apheresis, the Japanese Society for Apheresis, the Japanese Society for Dialysis Therapy·Shunsuke YamadaKazuhiko Tsuruya

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