期刊
HEMODIALYSIS INTERNATIONAL
卷 19, 期 1, 页码 60-65出版社
WILEY
DOI: 10.1111/hdi.12209
关键词
High-dose ergocalciferol; vitamin D deficiency; hemodialysis; controlled trial
Controversy exists on which vitamin D (D2 or D3) and which dosage scheme is the best to obtain and maintain adequate 25 OH D levels in dialysis patients safely. We tried to determine whether high-dose vitamin D2 supplementation could obtain optimal vitamin D status without inducing hypercalcemia. We studied 82 patients on dialysis not taking active vitamin D therapy and supplemented them with oral vitamin D2 72,000IU/week for 12 weeks followed by 24,000IU/week as maintenance therapy during 36 weeks. By week 12, serum 25(OH)D increased from 15.2 +/- 5.4 to 42.5 +/- 13.2ng/mL (P<0.01) at week 12 and remained optimal (34.7 +/- 12.0); 84.8% of the patients reached values 30ng/mL. iPTH and alkaline phosphatase did not change at 48 weeks compared with baseline, but bone alkaline phosphatase decreased significantly (54.3 +/- 46.0 to 44.3 +/- 25.0; P=0.02). Uncorrected serum Ca increased significantly at the end of follow-up (9.03 +/- 0.42 to 9.14 +/- 0.62; P=0.04); hypercalcemia was presented in two patients in the first control visit (week 12), in one patient in the second control (week 30), and in one patient in the third control (week 48). In 222 serum calcium determinations during follow-up, hypercalcemia was observed in only 1.8% of cases. This vitamin D2 oral regimen with initial high doses was safe and sufficient to obtain and maintain optimal serum 25(OH)D concentrations and prevent vitamin D insufficiency in chronic kidney disease patients on dialysis.
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