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  • Title: [Research on the treatment of secondary hyperparathyroidism as a complication of chronic renal failure].
    Author: Sugimura T.
    Journal: Nihon Jinzo Gakkai Shi; 1991 Nov; 33(11):1119-34. PubMed ID: 1808363.
    Abstract:
    The effects of internal treatment were compared with those of surgical procedures on secondary hyperparathyroidism as a complication of chronic renal failure patients in order to study their applications and problems. Maintenance hemodialysis patients complicated with 2HPT were selected as test subjects. The following internal treatment was administered. 1) Elcitonine to 6 cases and 2) Ipriflavon to 5 cases respectively and applied 3) pulse therapy of 1.25(OH)2D3 to 12 cases. On the other hand, total parathyroidectomy and autotransplantation were carried out as surgical procedures. The results of the treatment were evaluated by comparing serological data including tartrate resistant acid phosphatase (TAP) measured with the passage of time, bone scintigram findings, and change of bone mineral content (BMC) measured by single photon absorptiometry and dual photon absorptiometry. In the pulse therapy group, an oral tolerance test of 6 micrograms of 1.25(OH)2D3 was carried out to investigate its relation to long term prognosis. Furthermore, in both the pulse therapy group and PTX group, serum aluminum (A1) and delta A1 calculated by Defferoxamine (DFO) tolerance test were measured. The results are as follows. 1) In Elcitonine and Ipriflavon administration groups, increase of ALP and PTH and decrease of BMC (p less than 0.05) were recognized. 2) In the pulse therapy group, although the patients with PTH-C less than 30 ng/ml showed decrease in PTH both in short and long terms, cases with PTH-C more than 30 ng/ml kept the same level in PTH. Regardless of the change of PTH and ALP, there was no significant change observed in BMC. 3) In the PTX group, ALP/TAP ratio rose by 900% temporarily and BMC increased (p less than 0.01) in all regions measured. 4) Serum A1 and delta A1 were decreased (p less than 0.01) in PTX cases and in the pulse therapy cases in which ALP was decreased. In recent years, internal treatments on 2HPT patients have become diversified. However, exacerbation of 2HPT considered as an escape phenomenon caused the decrease in BMC after exclusive calcitonine preparatives administration. Pulse therapy, which is regarded at present as most effective in reducing PTH, ALP, did not work to increase BMC efficiently. In other word, in order to attain efficient BMC increase action, it is necessary to transfer from bone resorption phase to formative phase rapidly with drastic decrease of PTH and TAP observed in PTX.(ABSTRACT TRUNCATED AT 400 WORDS)
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