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  • Title: Efficacy of percutaneous ethanol injection therapy for secondary hyperparathyroidism in patients on hemodialysis as evaluated by parathyroid hormone levels according to K/DOQI guidelines.
    Author: Tanaka M, Itoh K, Matsushita K, Matsushita K, Fukagawa M.
    Journal: Ther Apher Dial; 2005 Feb; 9(1):48-52. PubMed ID: 15828906.
    Abstract:
    Secondary hyperparathyroidism (SHPT) is a major complication of hemodialysis patients. Recently, percutaneous ethanol injection therapy (PEIT) has become a useful alternative treatment to parathyroidectomy (PTx). In this study, we evaluate the usefulness of PEIT for SHPT according to Kidney Disease Outcomes Quality Initiative (K/DOQI) guidelines. We studied 28 patients on hemodialysis with high intact-PTH (>400 pg/mL) and one to four swollen parathyroid glands detected by power Doppler ultrasonography. They were classified into Group 1 (N = 16), with 1 or 2 swollen glands, Group 2 (N = 5), with 3 or 4 swollen glands, and Group 3 (N = 7), high-risk patients for PTx. We compared serum intact-PTH levels 1 year after PEIT according to K/DOQI guidelines among these groups. We also evaluated the effectiveness of PEIT and PTx by comparing intact-PTH levels in 21 patients 1 year after PEIT (groups 1 and 2) with 11 patients after PTx. In Group 1, adequate intact-PTH levels were noted in 13 of 16 (81.2%) patients after PEIT, while 1 patient of 5 (20%) was achieved in Group 2, and 2 of 7 (28.6%) patients of Group 3. Adequate intact-PTH levels were attained in 14 of 21 (66.7%) patients of the PEIT group but only in 2 of 11 (18.2%) patients of the PTx group. Our results suggest that PEIT is a useful treatment for SHPT, especially in patients with one or two swollen glands. Through appropriate selection of patients for PEIT and correct injection of ethanol into the enlarged parathyroid gland, PEIT could accomplish better outcomes based on K/DOQI guidelines.
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