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Hyperparathyroidism

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https://www.readbyqxmd.com/read/28646423/updates-in-primary-hyperparathyroidism
#1
REVIEW
Guido Gasparri
This is a review of the latest papers on PHPT with the purpose of assessing the most recent evidence in the management of PHPT and to give updated recommendations for its evaluation, diagnosis, and treatment. I used my personal experience to collect papers that reinforce my ideas for the diagnosis and treatment of PHPT. Perhaps, in the near future, we will have more information about genetics, localization studies, surgical techniques, medical treatments, and statements that we have presented today will be obsolete...
June 23, 2017: Updates in Surgery
https://www.readbyqxmd.com/read/28645310/pth-monitoring-after-total-parathyroidectomy-with-forearm-auto-transplantation-potential-for-spuriously-high-levels-from-grafted-forearm
#2
Diana Khalil, Paul D Kerr
BACKGROUND: We have identified a cause of falsely elevated parathyroid hormone (PTH) levels after total parathyroidectomy with forearm auto-transplantation (TPT-ATx). Our cases highlight the need to draw PTH samples remotely, away from forearm graft sites, to ensure accurate levels. CASE PRESENTATIONS: We report on four patients who were referred to our surgical team at an academic tertiary care center for what was perceived to be recurrent hyperparathyroidism 2-5 years following total parathyroidectomy with auto-transplantation...
June 23, 2017: Journal of Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28644425/significance-of-parathyroid-scintigraphy-and-correlation-of-findings-with-parathyroid-hormone-values-in-patients-undergoing-hemodialysis
#3
Nermana Ahmetbegović, Nadira Suljagić, Vahidin Katica
Aim To compare finding of thyroid gland scintigraphy with serum concentration of parathyroid hormone in patients undergoing hemodialysis. Methods This retrospective-prospective study included 50 patients undergoing hemodialysis with established hyperparathyroidism who were treated at Cantonal Hospital Zenica in the period 2009 - 2014. Besides anthropological data, concentration of parathyroid hormone in serum of patients was monitored too. Scintigraphy was performed at the Department of Nuclear Medicine using two-headed gamma camera Prism 2000xp...
August 1, 2017: Medicinski Glasnik
https://www.readbyqxmd.com/read/28643676/-asymptomatic-primary-hyperparathyroidism-in-women
#4
Francisco R Spivacow, Claudia Palumbo
Primary hyperparathyroidism may have different characteristics. One is the asymptomatic form. This is a mild variant of hypercalcemic hyperparathyroidism, characterized by a calcemia not greater than 1 mg/dl above the upper limit of the method, a high intact parathyroid hormone (iPTH), absence of renal stones, renal function impairement, and osteoporosis, less than 50 years of age, and less than 400 mg/day calciuria. It is not a surgical entity, but its evolution may require it. Twenty-four postmenopausal women, all older than 50 years, with a diagnosis of asymptomatic hyperparathyroidism, were studied...
2017: Medicina
https://www.readbyqxmd.com/read/28642344/a-role-for-tet2-in-parathyroid-carcinoma
#5
Elham Barazeghi, Anthony J Gill, Stan Sidhu, Olov Norlén, Roberto Dina, F Fausto Palazzo, Per Hellman, Peter Stålberg, Gunnar Westin
Primary hyperparathyroidism (pHPT) is rarely caused by parathyroid carcinoma (PC, <1-5% of pHPT cases). The TET proteins oxidize the epigenetic mark 5-methylcytosine to 5-hydroxymethylcytosine (5hmC) and inactivation by mutation or epigenetic deregulation of TET1 and TET2 play important roles in various cancers. Recently, we found that 5hmC was severely reduced in all of the analyzed PCs and with deranged expression of TET1 for the majority of PCs. Here, we have examined the expression of the TET2 protein in 15 5hmC-negative PCs from patients who had local invasion or metastases...
July 2017: Endocrine-related Cancer
https://www.readbyqxmd.com/read/28639211/selective-venous-sampling-for-primary-hyperparathyroidism-how-to-perform-an-examination-and-interpret-the-results-with-reference-to-thyroid-vein-anatomy
#6
REVIEW
Takayuki Yamada, Masaya Ikuno, Yasumoto Shinjo, Atsushi Hiroishi, Shoichiro Matsushita, Tsuyoshi Morimoto, Reiko Kumano, Kunihiro Yagihashi, Takuyuki Katabami
Primary hyperparathyroidism (pHPT) causes hypercalcemia. The treatment for pHPT is surgical dissection of the hyperfunctioning parathyroid gland. Lower rates of hypocalcemia and recurrent laryngeal nerve injury imply that minimally invasive parathyroidectomy (MIP) is safer than bilateral neck resection. Current trends in MIP use can be inferred only by reference to preoperative localization studies. Noninvasive imaging studies (typically preoperative localization studies) show good detection rates of hyperfunctioning glands; however, there have also been cases of nonlocalization or discordant results...
June 21, 2017: Japanese Journal of Radiology
https://www.readbyqxmd.com/read/28637440/acute-airway-compromise-due-to-parathyroid-tumour-apoplexy-an-exceptionally-rare-and-potentially-life-threatening-presentation
#7
Aoife Garrahy, David Hogan, James Paul O'Neill, Amar Agha
BACKGROUND: Spontaneous haemorrhage into a parathyroid adenoma is a rare and potentially life-threatening presentation. CASE PRESENTATION: We report the case of a 45 year old female recently diagnosed with primary hyperparathyroidism who presented with chest discomfort and acute airway compromise due to spontaneous extracapsular haemorrhage into a parathyroid adenoma. Computed tomography (CT) imaging showed a hypopharyngeal haematoma extending 10 cm into the superior mediastinum...
June 21, 2017: BMC Endocrine Disorders
https://www.readbyqxmd.com/read/28637057/primary-hyperparathyroidism-and-hypercalcemia-during-pregnancy
#8
M Iftekhar Ullah, Gabriel I Uwaifo, Christian A Koch
No abstract text is available yet for this article.
June 21, 2017: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/28634117/to-assess-the-effects-of-parathyroidectomy-tptx-versus-tptx-at-for-secondary-hyperparathyroidism-in-chronic-renal-failure-a-meta-analysis
#9
REVIEW
Nian-Cun Qiu, Si-Luo Zha, Miao-E Liu, Zhi-Peng Du, Yi-Fan Wang, Qiang Wang, Qi Chen, Ying Jiang, Cheng-Xiang Shan, Ming Qiu
BACKGROUND: Secondary Hyperparathyroidism (SHPT) requiring parathyroidectomy (PTX) occurs more commonly in patients with progressive chronic kidney disease and in those on long-term lithium therapy. Successful PTX often results in a dramatic drop of parathyroid hormone level, relieves the patient from clinical symptoms, and reduces mortality. However, there is an ongoing debate on the optimal surgical treatment of SHPT. Currently, no clinical guidelines or trials have definitely answered the question of whether Total Parathyroidectomy (TPTX) is superior or equal to Total Parathyroidectomy with Autotransplantation (TPTX + AT)...
June 17, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28631236/use-of-ctx-i-and-pinp-as-bone-turnover-markers-national-bone-health-alliance-recommendations-to-standardize-sample-handling-and-patient-preparation-to-reduce-pre-analytical-variability
#10
P Szulc, K Naylor, N R Hoyle, R Eastell, E T Leary
N-terminal propeptide of type I procollagen and C-terminal telopeptide of type I collagen are the reference standards for bone turnover markers for monitoring osteoporosis treatment. We provide recommendations for standardized sample handling and encompassing aspects of preanalytical variability to improve the reproductibility of their measurements, their reliability, and clinical interpretation. The International Osteoporosis Foundation and International Federation of Clinical Chemistry bone turnover marker standards working group have identified N-terminal propeptide of type I procollagen (PINP) and C-terminal telopeptide of type I collagen (CTX-I) in the blood to be the international reference standards for bone turnover markers for the prediction of fracture risk and monitoring of osteoporosis treatment...
June 19, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28623033/anti-inflammatory-profile-of-paricalcitol-in-kidney-transplant-recipients
#11
Javier Donate-Correa, Fernando Henríquez-Palop, Ernesto Martín-Núñez, Carolina Hernández-Carballo, Carla Ferri, Nayra Pérez-Delgado, Mercedes Muros-de-Fuentes, Carmen Mora-Fernández, Juan F Navarro-González
BACKGROUND AND OBJECTIVES: Paricalcitol, a selective vitamin D receptor activator, is used to treat secondary hyperparathyroidism in kidney transplant patients. Experimental and clinical studies in non-transplant kidney disease patients have found this molecule to have anti-inflammatory properties. In this exploratory study, we evaluated the anti-inflammatory profile of paricalcitol in kidney-transplant recipients. METHODS: Thirty one kidney transplant recipients with secondary hyperparathyroidism completed 3 months of treatment with oral paricalcitol (1μg/day)...
June 13, 2017: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
https://www.readbyqxmd.com/read/28619127/bone-mineral-disturbances-in-patients-with-chronic-kidney-disease-stage-5-not-yet-on-dialysis
#12
Andreja Marn Pernat, Matej Zrimšek
AIMS: This retrospective study evaluates the success of a treatment strategy for secondary hyperparathyroidism in our cohort of patients with chronic kidney disease stage 5 who were not yet on dialysis. MATERIALS AND METHODS: 81 predialysis patients from the outpatient clinic of the Department of Nephrology, University Medical Center Ljubljana were reviewed. We focused on serum markers for bone mineral metabolism including intact parathyroid hormone (PTH), phosphate, corrected calcium, and the usage of phosphate-binding agents and vitamin D analogs...
June 16, 2017: Clinical Nephrology
https://www.readbyqxmd.com/read/28618677/re-thiazide-treatment-in-primary-hyperparathyroidism-a-new-indication-for-an-old-medication
#13
Dean G Assimos
No abstract text is available yet for this article.
July 2017: Journal of Urology
https://www.readbyqxmd.com/read/28617975/incidence-of-parathyroid-disorders-in-an-indian-adult-male-population-a-25-year-follow-up-study
#14
K V S Hari Kumar, S K Patnaik
CONTEXT AND OBJECTIVE: Detailed information on the epidemiology of parathyroid disorders in India is lacking. Most of the available data pertain to primary hyperparathyroidism (PHPT) rather than the overall burden of parathyroid disorders. We studied the incidence of parathyroid disorders in a cohort of service personnel followed for a long duration. DESIGN, SETTING AND PATIENTS: The data for this retrospective, descriptive epidemiological study were derived from the electronic medical records (EMR) of health care personnel enrolled between 1990 and 2015...
June 15, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28616750/systematic-review-of-oral-manifestations-related-to-hyperparathyroidism
#15
REVIEW
Benjamin Palla, Egon Burian, Riham Fliefel, Sven Otto
OBJECTIVES: We sought to identify oral symptoms found in hyperparathyroidism and compare their rate of occurrence, as well as potential variations in sequelae between primary, secondary, and tertiary hyperparathyroidism. MATERIALS AND METHODS: Database searches were performed through EMBASE and PubMed, with a continual handsearch for relevant articles. PRISMA guidelines were followed. RESULTS: Two hundred five articles including 245 patients were analyzed with data extraction...
June 14, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28615947/treatment-of-secondary-hyperparathyroidism-the-clinical-utility-of-etelcalcetide
#16
REVIEW
Mario Cozzolino, Andrea Galassi, Ferruccio Conte, Michela Mangano, Luca Di Lullo, Antonio Bellasi
Secondary hyperparathyroidism (SHPT), a very frequent, severe, and worsening complication of chronic kidney disease, is characterized by high serum parathyroid hormone (PTH), parathyroid gland hyperplasia, and disturbances in mineral metabolism. Clinically, SHPT shows renal osteodystrophy, vascular calcification, cardiovascular damage, and fatal outcome. Calcium-sensing receptor (CaSR) is the main physiological regulator of PTH secretion; its activation by calcium rapidly inhibits PTH. Another important player in regulating mineral metabolism is vitamin D receptor (VDR), which is under the influence of vitamin D and influences the intestinal absorption of calcium and phosphate, PTH gene expression, and bone calcium mobilization...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/28614134/value-of-99mtc-mibi-spect-ct-parathyroid-imaging-and-ultrasonography-for-concomitant-thyroid-carcinoma
#17
Rui Guo, Jiqiu Wang, Min Zhang, Miao Zhang, Hongping Meng, Yifan Zhang, Biao Li
PURPOSE: We aimed to assess the frequency of carcinoma in cases with suspected parathyroid adenoma and test the value of Tc-methoxyisobutylisonitrile (Tc-MIBI) single-photon emission computed tomography/computed tomography (SPECT/CT) parathyroid imaging and neck ultrasonography in detecting concomitant thyroid carcinoma. PATIENTS AND METHODS: We enrolled 741 patients with clinically suspected parathyroid adenoma who underwent Tc-MIBI planer scans and SPECT/CT of the skull base, neck, and thorax; patients also underwent ultrasonography within 1 month before SPECT/CT...
June 13, 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/28614027/parathyroid-surgery-from-inception-to-the-modern-day
#18
Neeraj Sethi, R James A England
Parathyroid surgery has undergone great changes since its inception less than a century ago. It is still the only definitive option available to cure primary or tertiary hyperparathyroidism. This review details the development of parathyroid surgery, our understanding of hyperparathyroidism and the treatment options available. It also discusses the technological advances that have enabled parathyroid localization and prediction of surgical success.
June 2, 2017: British Journal of Hospital Medicine
https://www.readbyqxmd.com/read/28609842/specifying-the-molecular-pattern-of-sporadic-parathyroid-tumorigenesis-the-y282d-variant-of-the-gcm2-gene
#19
Elena Marchiori, Maria Rosa Pelizzo, Monika Herten, Danyelle M Townsend, Domenico Rubello, Isabella Merante Boschin
Sporadic carcinoma of the parathyroid glands is a rare malignant neoplasia. The GCM2 gene encodes a transcription factor that is crucial to embryonic parathyroid development. The Y282D variant of GCM2 exhibits increased transcriptional activity, and the presence of this variant is significantly associated with a higher prevalence of primitive hyperparathyroidism. The present study investigated the prevalence of the Y282D variant of the GCM2 gene and its association with clinical parameters in patients with a definitive histological diagnosis of sporadic parathyroid carcinoma (SPC) or atypical adenoma (AA)...
June 9, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28602960/the-impact-of-vdr-expression-and-regulation-in-vivo
#20
Seong Min Lee, Mark B Meyer, Nancy A Benkusky, Charles A O'Brien, J Wesley Pike
The vitamin D receptor (VDR) mediates the pleiotropic biological actions of 1,25-dihydroxyvitamin D3 (1,25(OH)2D3). These actions include orchestration of mineral homeostasis which is coordinated by the kidney, intestine, bone and parathyroid gland wherein the VDR transcriptionally regulates expression of the genes involved in this complex process. Mutations in human VDR (hVDR) cause hereditary vitamin D resistant rickets, a genetic syndrome characterized by hypocalcemia, hyperparathyroidism and rickets resulting from dysregulation of mineral homeostasis...
June 8, 2017: Journal of Steroid Biochemistry and Molecular Biology
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