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Hyperparathyroidism

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https://www.readbyqxmd.com/read/27906863/bartter-s-and-gitelman-s-syndrome
#1
Hannsjörg W Seyberth, Stefanie Weber, Martin Kömhoff
PURPOSE OF REVIEW: The clinical presentations of Bartter's syndrome and Gitelman's syndrome will be reviewed including two most recently described hypokalemic salt-losing tubulopathies. By taking the quite heterogeneous presentations and the apparently different pathophysiologies as the basis, the applicability of the physiologic classification has been tested. RECENT FINDINGS: According to the physiologic approach, salt-losing tubulopathies can be divided into two major groups (with completely different tubular defects): first, disorders of the thick ascending limb of Henle's loop (loop disorders); second, disorders of the distal convolute tubule (DCT disorders)...
November 30, 2016: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/27905644/requests-of-laboratory-tests-for-the-diagnosis-and-management-of-calcium-phosphate-disorders-in-spain
#2
María Salinas, Maite López-Garrigós, Emilio Flores, Joaquín Uris, Carlos Leiva-Salinas
BACKGROUND: Knowledge about the variability in the request of calcium-phosphate metabolism laboratory tests in primary care is important to design strategies to improve health system efficiency. AIM: To compare the inter-practice variability in calcium-phosphate metabolism laboratory tests requested by general practitioners from diverse regions across Spain. MATERIAL AND METHODS: One hundred and forty one clinical laboratories were invited to participate in an observational cross-sectional study...
August 2016: Revista Médica de Chile
https://www.readbyqxmd.com/read/27904855/multiple-endocrine-neoplasia-type-1-with-anterior-mediastinal-parathyroid-adenoma-successful-localization-using-tc-99m-sestamibi-spect-ct
#3
Hye Lim Park, Ie Ryung Yoo, Sung Hoon Kim, Sohee Lee
The most common manifestation of multiple endocrine neoplasia type 1 (MEN1) is hyperparathyroidism. Treatment of hyperparathyroidism in MEN patients is surgical removal of the parathyroid glands, however ectopic parathyroid gland is challenging for treatment. A 51-year-old female, the eldest of 3 MEN1 sisters, had hyperparathyroidism with ectopic parathyroid adenoma in the mediastinal para-aortic region, which was detected by technetium-99m (Tc-99m) sestamibi scintigraphy and single-photon emission computed tomography/computed tomography (SPECT/CT)...
December 2016: Annals of Surgical Treatment and Research
https://www.readbyqxmd.com/read/27904299/pharmaceutical-approval-update
#4
Mary Choy
Calcifediol (Rayaldee) for secondary hyperparathyroidism in adults with chronic kidney disease; dasabuvir/ombitasvir/paritaprevir/ritonavir (Viekira XR) for hepatitis C virus infection; and lixisenatide (Adlyxin) for type-2 diabetes.
November 2016: P & T: a Peer-reviewed Journal for Formulary Management
https://www.readbyqxmd.com/read/27903853/intraperitoneal-calcitriol-for-treatment-of-severe-hyperparathyroidism-in-children-with-chronic-kidney-disease-a-therapy-forgotten
#5
Rahul Chanchlani, Susan Ackerman, Elizabeth Piva, Elizabeth Harvey
Active Vitamin D sterols such as calcitriol and alfacalcidol are quite effective in the treatment of mineral bone disease secondary to chronic kidney disease. However, some children on peritoneal dialysis (PD) are resistant to oral formulations of active Vitamin D, and use of an intravenous formulation in such patients is inconvenient. In these children, intraperitoneal (IP) calcitriol has been shown to be effective in the treatment of secondary hyperparathyroidism. However, its use has declined. We report 2 children, aged 1 and 9...
November 2016: Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis
https://www.readbyqxmd.com/read/27900978/penile-calcific-uremic-arteriolopathy-occurring-postparathyroidectomy-in-a-hemodialysis-patient
#6
Salah Omar Bashir, Mahmoud A Aamer, Hayder A Omer, Mohamed D Morsy
Calcific uremic arteriolopathy (CUA), also known as calciphylaxis, is a rare condition most frequently seen in patients with advanced chronic kidney disease. The clinical picture is characterized by painful skin lesions and ulcerations. The underlying pathology is medial calcification and intimal proliferation with microthrombi of small arteries. CUA is commonly associated with secondary hyperparathyroidism and high serum calcium and phosphate products. This article reports an atypical case where CUA developed after parathyroidectomy and in the course of treatment of hungry bone syndrome...
November 2016: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/27900863/-symptomatic-and-asymptomatic-primary-hyperparathyroidism-in-outpatient-care-current-issues
#7
Helena Šiprová, Miroslav Souček, Zdeněk Fryšák, Květoslav Šipr
OBJECTIVE: To assess the diagnostic and therapeutic options in the care of patients with primary hyperparathyreosis in outpatient practice.Cohort and methods: The study included all the patients with primary hyperparathyroidism treated at the 2nd Internal Medicine Department, Masaryk University and the University Hospital of St. Anne in Brno in the period from Jan 1, 2008 to Dec 31, 2013. The sample consisted of 218 patients, including 41 men and 177 women. Patients with secondary hyperparathyroidism, especially patients with underlying hypovitaminosis D, renal insufficiency and those taking medications with possible effects on parathyroid hormone levels, have not been included in the study...
2016: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/27900734/lithium-side-effects-and-toxicity-prevalence-and-management-strategies
#8
REVIEW
Michael Gitlin
Despite its virtually universal acceptance as the gold standard in treating bipolar disorder, prescription rates for lithium have been decreasing recently. Although this observation is multifactorial, one obvious potential contributor is the side effect and toxicity burden associated with lithium. Additionally, side effect concerns assuredly play some role in lithium nonadherence. This paper summarizes the knowledge base on side effects and toxicity and suggests optimal management of these problems. Thirst and excessive urination, nausea and diarrhea and tremor are rather common side effects that are typically no more than annoying even though they are rather prevalent...
December 2016: International Journal of Bipolar Disorders
https://www.readbyqxmd.com/read/27900648/etelcalcetide-first-global-approval
#9
Hannah A Blair
Etelcalcetide (Parsabiv™) is a novel second generation calcimimetic agent developed by Amgen for the treatment of secondary hyperparathyroidism (SHPT), a complication of chronic kidney disease (CKD). Etelcalcetide reduces circulating levels of parathyroid hormone and calcium by binding directly to the calcium-sensing receptor. Intravenous etelcalcetide has been approved in the EU for the treatment of SHPT in adult patients with CKD on haemodialysis therapy. Regulatory applications for etelcalcetide in SHPT are also under review in the USA and Japan...
November 29, 2016: Drugs
https://www.readbyqxmd.com/read/27899269/pixe-study-on-the-effects-of-parathyroid-hormone-on-elemental-content-in-rat-bones
#10
M H Eisa, H Shen, W Jin, Abdulaziz S Alaamer, M A Al-Rajhi, Hajo Idriss
Parathyroid hormone (PTH) has attracted considerable interest as a bone anabolic agent. PTH plays a central role in regulating calcium phosphate metabolism and its increases in production in response to low serum calcium levels. A continuous hypersecretion of PTH, as occurs in primary hyperparathyroidism, leads to bone resorption. In this study, the effect of different doses of parathyroid hormone (PTH) on bone mineral content (BMC) in rats was investigated by particle-induced X-ray emission (PIXE). This study will help in investigating further the toxicity of extremely high doses of PTH on BMC...
November 26, 2016: Physica Medica: PM
https://www.readbyqxmd.com/read/27899108/geographic-variation-of-parathyroidectomy-in-patients-receiving-hemodialysis-a-retrospective-cohort-analysis
#11
James B Wetmore, Jiannong Liu, Paul J Dluzniewski, Areef Ishani, Geoffrey A Block, Allan J Collins
BACKGROUND: Secondary hyperparathyroidism (SHPT) is associated with adverse outcomes in patients receiving maintenance dialysis. Parathyroidectomy is a treatment for SHPT; whether parathyroidectomy utilization varies geographically in the US is unknown. METHODS: A retrospective cohort analysis was undertaken to identify all patients aged 18 years or older who were receiving in-center hemodialysis between 2007 and 2009, were covered by Medicare Parts A and B, and had been receiving hemodialysis for at least 1 year...
November 29, 2016: BMC Surgery
https://www.readbyqxmd.com/read/27898996/calcium-pyrophosphate-deposition-disease-and-associated-medical-co-morbidities-a-national-cross-sectional-study-of-us-veterans
#12
Crystal Kleiber Balderrama, Ann K Rosenthal, Daniel Lans, Jasvinder A Singh, Christie M Bartels
OBJECTIVE: Calcium pyrophosphate crystal deposition disease (CPDD) is a common cause of acute and chronic arthritis, yet there are few large epidemiologic studies of CPDD. We sought to characterize CPDD in the national Veterans Affairs (VA) population. METHODS: Patients with International Classification of Diseases, ninth revision (ICD-9) codes for CPDD seen at any VA medical center from 2010 through 2014 were matched by age and gender with control patients without CPDD, using data from the Department of Veterans Affairs Corporate Data Warehouse...
November 29, 2016: Arthritis Care & Research
https://www.readbyqxmd.com/read/27896505/focused-versus-bilateral-parathyroid-exploration-for-primary-hyperparathyroidism-a-systematic-review-and-meta-analysis
#13
Marcel Jinih, Emer O'Connell, Donal P O'Leary, Aaron Liew, Henry P Redmond
BACKGROUND: Focused exploration (FE) and bilateral parathyroid exploration (BE) are the standard surgical options for patients with primary hyperparathyroidism. However, the relative risk of recurrence, persistence, overall failure, reoperation, and any complications associated with either surgical approach is unclear. This study compared the outcomes and complication rates after FE and BE for patients with primary hyperparathyroidism. METHODS: PubMed and Embase were searched for studies comparing these outcomes between FE and BE...
November 28, 2016: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/27894859/brown-tumour-in-phalanx-of-the-ring-finger-due-to-chronic-kidney-failure-a-case-report
#14
J E Forigua V, R A Brunicardi H, C A Morales V, M Del P Archila, D M Chaparro Rivera
Brown tumours are highly vascular lytic bone lesions found in primary and secondary hyperparathyroidism. The brown term is given due to the red-brown colour of the tissue, which is due to the accumulation of hemosiderin. The case is presented of a 29 year-old male with chronic renal failure, who had a mass in the tip of the ring finger after a trauma of 4 months onset, which had increased progressively in size and pain. He was treated surgically, by amputation, with no recurrence 10 months after the surgery...
November 25, 2016: Revista Española de Cirugía Ortopédica y Traumatología
https://www.readbyqxmd.com/read/27885739/analysis-of-factors-affecting-outcome-of-ultrasound-guided-radiofrequency-heat-ablation-for-treatment-of-primary-hyperparathyroidism-in-dogs
#15
Daniel Bucy, Rachel Pollard, Richard Nelson
Radiofrequency (RF) parathyroid ablation is a noninvasive treatment for hyperparathyroidism in dogs. There are no published data assessing factors associated with RF parathyroid ablation success or failure in order to guide patient selection and improve outcome. The purpose of this retrospective analytical study was to determine whether imaging findings, biochemical data, or concurrent diseases were associated with RF heat ablation treatment failure. For inclusion in the study, dogs must have had a clinical diagnosis of primary hyperparathyroidism, undergone cervical ultrasound and RF ablation of abnormal parathyroid tissue, and must have had at least 3 months of follow-up information available following the date of ultrasound-guided parathyroid ablation...
November 24, 2016: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/27882481/assessment-criteria-for-vitamin-d-deficiency-insufficiency-in-japan-proposal-by-an-expert-panel-supported-by-the-research-program-of-intractable-diseases-ministry-of-health-labour-and-welfare-japan-the-japanese-society-for-bone-and-mineral-research-and-the
#16
Ryo Okazaki, Keiichi Ozono, Seiji Fukumoto, Daisuke Inoue, Mika Yamauchi, Masanori Minagawa, Toshimi Michigami, Yasuhiro Takeuchi, Toshio Matsumoto, Toshitsugu Sugimoto
Vitamin D is indispensable for the maintenance of bone and mineral health. Inadequate vitamin D action increases the risk for various musculoskeletal/mineral events including fracture, fall, secondary hyperparathyroidism, diminished response to antiresorptives, rickets/osteomalacia, and hypocalcemia. Its most common cause in recent years is vitamin D deficiency/insufficiency, clinically defined by a low serum 25-hydroxyvitamin D [25(OH)D] level. Guidelines for vitamin D insufficiency/deficiency defined by serum 25(OH)D concentrations have been published all over the world...
November 23, 2016: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/27881629/risk-of-fractures-after-stroke-results-from-the-ontario-stroke-registry
#17
Moira K Kapral, Jiming Fang, Shabbir M H Alibhai, Peter Cram, Angela M Cheung, Leanne K Casaubon, Marla Prager, Melissa Stamplecoski, Brennan Rashkovan, Peter C Austin
OBJECTIVE: To determine the risk of fractures after stroke. METHODS: Using the Ontario Stroke Registry, we identified a population-based sample of consecutive patients seen in the emergency department or hospitalized with stroke (n = 23,751) or TIA (n = 11,240) at any of 11 stroke centers in Ontario, Canada, and discharged alive between July 1, 2003, and March 31, 2012. We compared the risk of low-trauma fractures in patients with stroke vs those with TIA using propensity score methods to adjust for differences in baseline factors...
November 23, 2016: Neurology
https://www.readbyqxmd.com/read/27880946/2md-dp001-a-single-agent-in-the-management-of-hemodialysis-patients-a-randomized-trial
#18
Ravi Thadhani, Julia B Zella, Danielle C Knutson, William J Blaser, Lori A Plum, Margaret Clagett-Dame, Raymond D Buck, Hector F DeLuca
BACKGROUND: Vitamin D analogs and calcimimetics are used to manage secondary hyperparathyroidism (SHPT) in dialysis patients. DP001 is an oral vitamin D analog that suppresses parathyroid hormone (PTH) in uremic rats, osteopenic women, and hemodialysis patients. The safety and effectiveness of DP001 suppressing PTH in dialysis patients previously managed with active vitamin D with or without a calcimimetic are presented. METHODS: A multicenter, randomized, double-blind study compared DP001 to placebo in hemodialysis patients with serum-intact PTH (iPTH) ≥300 pg/ml...
November 24, 2016: American Journal of Nephrology
https://www.readbyqxmd.com/read/27876426/pin1-and-secondary-hyperparathyroidism-of-chronic-kidney-disease-gene-polymorphisms-and-protein-levels
#19
Yu Zhao, Li-Li Zhang, Fa-Xian Ding, Ping Cao, Yuan-Yuan Qi, Jing Wang
BACKGROUND: Peptidyl-prolyl cis/trans isomerase NIMA-interacting 1 (Pin1) is a key regulator of PTH mRNA stability. Secondary hyperparathyroidism (SHPT), which is characterized by elevated serum PTH levels, is a common complication of CKD. We investigated the possible associations between CKD with SHPT (CKD SHPT) and single-nucleotide polymorphisms of the Pin1 gene and compared the levels of the Pin1 protein in the CKD SHPT patients with those of the controls. METHODS: The study group included 251 CKD SHPT patients and 61 controls...
November 23, 2016: Renal Failure
https://www.readbyqxmd.com/read/27873072/cinacalcet-hydrochloride-relieves-hypercalcemia-in-japanese-patients-with-parathyroid-cancer-and-intractable-primary-hyperparathyroidism
#20
Yasuhiro Takeuchi, Shunsuke Takahashi, Daishu Miura, Makoto Katagiri, Noriaki Nakashima, Hiroko Ohishi, Ryutaro Shimazaki, Yoshihiro Tominaga
Pharmacological treatment of hypercalcemia is essential for patients with parathyroid carcinoma and intractable primary hyperparathyroidism (PHPT). Use of the calcimimetic cinacalcet hydrochloride (cinacalcet) is an option to treat such patients. We investigated the efficacy and safety of cinacalcet in Japanese patients with parathyroid carcinoma and intractable PHPT. Five Japanese patients with parathyroid carcinoma and two with intractable PHPT were enrolled in an open-label, single-arm study consisting of titration and maintenance phases...
November 21, 2016: Journal of Bone and Mineral Metabolism
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