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Oruc A, Ersoy A, Kocaeli AA, Yildiz A, Gul OO, Ertürk E, Ersoy C. Association Between Resistance to Cinacalcet and Parathyroid Gland Hyperplasia in Kidney Transplant Recipients with Persistent Hypercalcemia. Int J Organ Transplant Med 2020; 11:107-114. [PMID: 32913586 PMCID: PMC7471614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Persistent hypercalcemia and hyperparathyroidism after successful kidney transplantation can be detrimental in some recipients and should be ameliorated. OBJECTIVE To point out the concerns regarding resistance to cinacalcet in kidney transplant recipients with persistent hypercalcemia. METHODS 14 renal transplant recipients who received cinacalcet treatment because of persistent hypercalcemia were included in the study. Serum creatinine, estimated glomerular filtration rate (eGFR), calcium, phosphorus, and intact parathyroid hormone (PTH) levels at the baseline and throughout the treatment, and ultrasonography and parathyroid scintigraphy findings were recorded. RESULTS Cinacalcet treatment was initiated after a mean±SD of 20.7±19.7 months of transplantation and maintained for 16.9±7.9 months. Serum calcium levels were significantly decreased with the cinacalcet treatment. There were no significant changes in serum creatinine, eGFR, phosphorus, and PTH levels. In all participants, serum calcium levels were increased from 9.8±0.6 to 11.1±0.6 mg/dL (p<0.001) within 1 month of cessation of cinacalcet. 7 recipients with adenoma-like hyperplastic glands underwent parathyroidectomy (PTx) due to failure with cinacalcet. CONCLUSION Cinacalcet may be an appropriate treatment for a group of recipients with hypercalcemia without adenoma-like hyperplastic glands or who had a contraindication for surgery. Recipients with enlarged parathyroid gland may resist to cinacalcet-induced decrease in serum PTH, although the concomitant hypercalcemia may be corrected.
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Affiliation(s)
- A. Oruc
- Uludag University Faculty of Medicine, Department of Nephrology, Bursa, Turkey,Correspondence: Aysegul Oruc, MD, Uludag University School of Medicine, Department of Nephrology, 16059, Bursa, Turkey. ORCID: 0000-0002-0342-9692, Tel: +90-506-204-9350, E-mail:
| | - A. Ersoy
- Uludag University Faculty of Medicine, Department of Nephrology, Bursa, Turkey
| | - A. A. Kocaeli
- Uludag University Faculty of Medicine, Department of Endocrinology, Bursa, Turkey
| | - A. Yildiz
- Uludag University Faculty of Medicine, Department of Nephrology, Bursa, Turkey
| | - O. O. Gul
- Uludag University Faculty of Medicine, Department of Endocrinology, Bursa, Turkey
| | - E. Ertürk
- Uludag University Faculty of Medicine, Department of Endocrinology, Bursa, Turkey
| | - C. Ersoy
- Uludag University Faculty of Medicine, Department of Endocrinology, Bursa, Turkey
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Risk-factors for nodular hyperplasia of parathyroid glands in sHPT patients. PLoS One 2017; 12:e0186093. [PMID: 29040300 PMCID: PMC5645091 DOI: 10.1371/journal.pone.0186093] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Accepted: 09/25/2017] [Indexed: 12/27/2022] Open
Abstract
Introduction Nodular hyperplasia of parathyroid glands (PG) is the most probable cause of medical treatment failure in secondary hyperparathyroidism (sHPT). This prospective cohort study is located at the interface of medical and surgical consideration of sHPT treatment options and identifies risk-factors for nodular hyperplasia of PG. Material and methods One-hundred-eight resected PG of 27 patients with a broad spectrum of sHPT severity were classified according to the degree of hyperplasia by histopathology. Twenty routinely gathered parameters from medical history, ultrasound findings of PG and laboratory results were analyzed for their influence on nodular hyperplasia of PG by risk-adjusted multivariable binary regression. A prognostic model for non-invasive assessment of PG was developed and used to weight the individual impact of identified risk-factors on the probability of nodular hyperplasia of single PG. Results Independent risk-factors for nodular hyperplasia of single PG were duration of dialysis in years, PG volume in mm3 determined by ultrasound and serum level of parathyroid hormone in pg/mL. Multivariable analyses computed a model with an Area Under the Receiver Operative Curve of 0.857 (95%-CI:0.773–0.941) when predicting nodular hyperplasia of PG. Theoretical assessment of risk-factor interaction revealed that the duration of dialysis had the strongest influence on the probability of nodular hyperplasia of single PG. Conclusions The three identified risk-factors (duration of dialysis, PG volume determined by ultrasound and serum level of parathyroid hormone) can be easily gathered in daily routine and could be used to non-invasively assess the probability of nodular hyperplasia of PG. This assessment would benefit from periodically collected data sets of PG changes during the course of sHPT, so that the choice of medical or surgical sHPT treatment could be adjusted more to the naturally changing type of histological PG lesion on an individually adopted basis in the future.
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Ogata H, Mizobuchi M, Koiwa F, Kinugasa E, Akizawa T. Clinical significance of parathyroid intervention on CKD-MBD management. NDT Plus 2015; 1:iii9-iii13. [PMID: 25983977 PMCID: PMC4421131 DOI: 10.1093/ndtplus/sfn080] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2008] [Accepted: 03/10/2008] [Indexed: 12/27/2022] Open
Abstract
Recently published ‘Guidelines for the management of secondary hyperparathyroidism in chronic dialysis patients’ by the Japanese Society for Dialysis Therapy advocate that percutaneous ethanol injection into enlarged glands, which has been considered as the only alternative to parathyroidectomy (PTx), should be indicated in patients with a single enlarged parathyroid gland (estimated volume >500 mm3, or estimated major axis >10 mm), and that PTx should be recommended in patients with multiple enlarged glands. Cinacalcet cannot achieve optimal control of chronic kidney disease–mineral bone disorder in all patients, and parathyroid intervention will be required in a considerable number of patients with refractory secondary hyperparathyroidism.
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Affiliation(s)
- Hiroaki Ogata
- Department of Internal Medicine , Showa University Northern Yokohama Hospital , Yokohama
| | | | - Fumihiko Koiwa
- Division of Nephrology, Department of Internal Medicine , Showa University Fujigaoka Hospital , Yokohama , Japan
| | - Eriko Kinugasa
- Department of Internal Medicine , Showa University Northern Yokohama Hospital , Yokohama
| | - Tadao Akizawa
- Department of Nephrology , Showa University School of Medicine , Tokyo
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Nakai K, Fujii H, Yoshikawa M, Kono K, Yonekura Y, Goto S, Ishimura T, Takeda M, Fujisawa M, Nishi S. Effect of cinacalcet cessation on hyperparathyroidism in kidney transcaplant patients after long-term dialysis therapy. Clin Exp Nephrol 2015; 19:1184-8. [PMID: 25782729 DOI: 10.1007/s10157-015-1107-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2014] [Accepted: 03/03/2015] [Indexed: 10/23/2022]
Abstract
BACKGROUND 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. METHODS 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. RESULTS 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 3 months later. CONCLUSIONS 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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Affiliation(s)
- Kentaro Nakai
- Division of Nephrology and Kidney Center, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Hideki Fujii
- Division of Nephrology and Kidney Center, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan.
| | - Mikiko Yoshikawa
- Division of Nephrology and Kidney Center, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Keiji Kono
- Division of Nephrology and Kidney Center, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Yuriko Yonekura
- Division of Nephrology and Kidney Center, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Shunsuke Goto
- Division of Nephrology and Kidney Center, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Takeshi Ishimura
- Division of Urology, Department of Organs Therapeutics, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Masashi Takeda
- Division of Urology, Department of Organs Therapeutics, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Masato Fujisawa
- Division of Urology, Department of Organs Therapeutics, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Shinichi Nishi
- Division of Nephrology and Kidney Center, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
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Komaba H, Nakanishi S, Fujimori A, Tanaka M, Shin J, Shibuya K, Nishioka M, Hasegawa H, Kurosawa T, Fukagawa M. Cinacalcet effectively reduces parathyroid hormone secretion and gland volume regardless of pretreatment gland size in patients with secondary hyperparathyroidism. Clin J Am Soc Nephrol 2010; 5:2305-14. [PMID: 20798251 DOI: 10.2215/cjn.02110310] [Citation(s) in RCA: 92] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND AND OBJECTIVES Cinacalcet is effective in reducing serum parathyroid hormone (PTH) in patients with secondary hyperparathyroidism. However, it has not been proven whether parathyroid gland size predicts response to therapy and whether cinacalcet is capable of inducing a reduction in parathyroid volume. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS This 52-week, multicenter, open-label study enrolled hemodialysis patients with moderate to severe secondary hyperparathyroidism (intact PTH >300 pg/ml). Doses of cinacalcet were adjusted between 25 and 100 mg to achieve intact PTH <180 pg/ml. Ultrasonography was performed to measure the parathyroid gland size at baseline, week 26, and week 52. Findings were also compared with those of historical controls. RESULTS Of the 81 subjects enrolled, 56 had parathyroid glands smaller than 500 mm(3) (group S) and 25 had at least one enlarged gland larger than 500 mm(3) (group L). Treatment with cinacalcet effectively decreased intact PTH by 55% from baseline in group S and by 58% in group L. A slightly greater proportion of patients in group S versus group L achieved an intact PTH <180 pg/ml (46 versus 32%) and a >30% reduction from baseline (88 versus 78%), but this was not statistically significant. Cinacalcet therapy also resulted in a significant reduction in parathyroid gland volume regardless of pretreatment size, which was in sharp contrast to historical controls (n = 87) where parathyroid gland volume progressively increased with traditional therapy alone. CONCLUSIONS Cinacalcet effectively decreases serum PTH levels and concomitantly reduces parathyroid gland volume, even in patients with marked parathyroid hyperplasia.
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Affiliation(s)
- Hirotaka Komaba
- Division of Nephrology and Kidney Center, Kobe University School of Medicine, Kobe, Japan
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