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pediatric hypercalcemia

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https://www.readbyqxmd.com/read/29333468/extraosseous-accumulation-of-technetium-99m-methyl-diphosphonate-99mtc-mdp-in-a-child-with-all-a-case-report
#1
Farnaz Banezhad, Narjess Ayati, Farrokh Seilanian Toosi, Samine Boloursaz, S Rasoul Zakavi
Extraosseous accumulation of technetium-99m-methyl diphosphonate (99mTc-MDP) on bone scan is not common. This phenomenon is often attributed to abnormality of calcium metabolism and has been reported in a variety of conditions including metabolic diseases and malignancies. A five years old boy is presented here, who was admitted to the pediatric emergency suffering from fatigue, respiratory symptoms, weight loss, intermittent fevers, anorexia, nausea and vomiting, edema of legs and abdominal distension for one month...
2018: Asia Oceania Journal of Nuclear Medicine & Biology
https://www.readbyqxmd.com/read/29234503/study-protocol-for-a-phase-ii-dose-evaluation-randomized-controlled-trial-of-cholecalciferol-in-critically-ill-children-with-vitamin-d-deficiency-vitdal-picu-study
#2
Dayre McNally, Karin Amrein, Katharine O'Hearn, Dean Fergusson, Pavel Geier, Matt Henderson, Ali Khamessan, Margaret L Lawson, Lauralyn McIntyre, Stephanie Redpath, Hope A Weiler, Kusum Menon
Background: Clinical research has recently demonstrated that vitamin D deficiency (VDD) is highly prevalent in the pediatric intensive care unit (PICU) and associated with worse clinical course. Multiple adult ICU trials have suggested that optimization of vitamin D status through high-dose supplementation may reduce mortality and improve other clinically relevant outcomes; however, there have been no trials of rapid normalization in the PICU setting. The objective of this study is to evaluate the safety and efficacy of an enteral weight-based cholecalciferol loading dose regimen in critically ill children with VDD...
2017: Pilot and Feasibility Studies
https://www.readbyqxmd.com/read/29184807/zoledronic-acid-in-pediatric-metabolic-bone-disorders
#3
REVIEW
Sasigarn A Bowden, John D Mahan
Zoledronic acid (ZA), a highly potent intravenous bisphosphonate (BP), has been increasingly used in children with primary and secondary osteoporosis due to its convenience of shorter infusion time and less frequent dosing compared to pamidronate. Many studies have also demonstrated beneficial effects of ZA in other conditions such as hypercalcemia of malignancy, fibrous dysplasia (FD), chemotherapy-related osteonecrosis (ON) and metastatic bone disease. This review summarizes pharmacologic properties, mechanism of action, dosing regimen, and therapeutic outcomes of ZA in a variety of metabolic bone disorders in children...
October 2017: Translational pediatrics
https://www.readbyqxmd.com/read/29168375/cholestasis-and-hypercalcemia-secondary-to-panhypopituitarism-in-a-newborn
#4
Fatma Dursun, Nelgin Gerenli, Heves Kırmızıbekmez
Dursun F, Gerenli N, Kırmızıbekmez H. Cholestasis and hypercalcemia secondary to panhypopituitarism in a newborn. Turk J Pediatr 2017; 59: 100-103. Cholestatic hepatitis and hypercalcemia are rare features of hypopituitarism in newborns. So diagnosis of hypopituitarism is frequently delayed. The most frequent symptoms of congenital hypopituitarism are hypoglycemia, prolonged jaundince and micropenis. A patient with congenital hypopituitarism associated with cholestasis and hypercalcemia is reported here...
2017: Turkish Journal of Pediatrics
https://www.readbyqxmd.com/read/28914984/hypercalcemic-disorders-in-children
#5
REVIEW
Victoria J Stokes, Morten F Nielsen, Fadil M Hannan, Rajesh V Thakker
Hypercalcemia is defined as a serum calcium concentration that is greater than two standard deviations above the normal mean, which in children may vary with age and sex, reflecting changes in the normal physiology at each developmental stage. Hypercalcemic disorders in children may present with hypotonia, poor feeding, vomiting, constipation, abdominal pain, lethargy, polyuria, dehydration, failure to thrive, and seizures. In severe cases renal failure, pancreatitis and reduced consciousness may also occur and older children and adolescents may present with psychiatric symptoms...
November 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28818584/-neonatal-intoxication-to-vitamin-d-in-premature-babies-a-series-of-16%C3%A2-cases
#6
M Vierge, S Laborie, A Bertholet-Thomas, M-C Carlier, J-C Picaud, O Claris, J Bacchetta
INTRODUCTION: Preterm neonates are particularly at risk of vitamin D (25-D) deficiency. To prevent rickets and osteopenia in this population, international guidelines vary between 800 and 1000IU per day of vitamin D in Europe and recommend 400IU per day in the USA. Target levels of circulating 25-D are not well identified, with the lower target level 50-75nmol/L and the upper target level probably 120nmol/L. METHODS: Between 2013 and 2015, 16 premature infants (born<35WG) were referred to pediatric nephrology clinics because of symptoms secondary to 25-D overdose during the neonatal period...
September 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28670142/prevalence-of-hypercalcemia-of-malignancy-among-pediatric-cancer-patients-in-the-uk-clinical-practice-research-datalink-database
#7
Susan Jick, Lin Li, Victor M Gastanaga, Alexander Liede, Rohini K Hernandez
BACKGROUND: The reported proportion of cancer patients who experience hypercalcemia of malignancy (HCM) is low, particularly in the pediatric population, ranging between <1% and 5%. HCM can be observed with any type of tumor in children and occurs most commonly with leukemia. While HCM is a potentially fatal condition, the prevalence of HCM is not well understood in pediatric cancer patients. METHODS: Using the UK Clinical Practice Research Datalink, we identified pediatric cancer patients with recorded corrected serum calcium (CSC) from 2003 through 2014...
2017: Clinical Epidemiology
https://www.readbyqxmd.com/read/28643220/denosumab-an-emerging-therapy-in-pediatric-bone-disorders
#8
REVIEW
Alison M Boyce
PURPOSE OF REVIEW: Denosumab is an inhibitor of receptor activator of nuclear factor kappa-B ligand (RANKL), and has emerged as an important novel therapy for skeletal disorders. This article examines the use of denosumab in children. RECENT FINDINGS: Considerable safety and efficacy data exists for denosumab treatment of adults with osteoporosis, bone metastases, and giant cell tumors. Pediatric data is limited; however, evidence suggests denosumab may be beneficial in decreasing bone turnover, increasing bone density, and preventing growth of certain skeletal neoplasms in children...
August 2017: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/28598460/hypercalcemia-due-to-nasopharyngeal-carcinoma
#9
S Chaudhary, J P Sah
Hypercalcemia is a rare metabolic disorder associated with hyperparathyroidism, malignancy and various other causes. Although common in adult malignancies, hypercalcemia is rare in pediatrics and purports poor prognosis. Nasopharyngeal carcinoma is rare with no reported hypercalcemic presentation. We present here a case of hypercalcemia in a child of nasopharyngeal carcinoma. A 10 year girl presented with backache for 1 month, epistaxis, cough, chest-pain for 1 week alongwith anorexia and weight loss. Investigations revealed anemia and hypercalcemia (23mg/dl; normal range 9-11 mg/dl) with hyperphosphatemia, normal parathyroid levels...
January 2017: JNMA; Journal of the Nepal Medical Association
https://www.readbyqxmd.com/read/28508965/cinacalcet-in-hyperparathyroidism-management-after-pediatric-renal-transplantation
#10
Olivier Niel, Anne Maisin, Marie-Alice Macher, Michel Peuchmaur, Georges Deschênes
Secondary hyperparathyroidism is often associated with end stage renal disease; even after renal transplantation, hyperparathyroidism may persist, and is responsible for hypercalcemia, hypophosphatemia and elevated parathyroid hormone (iPTH) levels. Parathyroid hyperplasia is frequently associated with persistent hyperparathyroidism, and may require a surgical treatment. Here, we report hyperparathyroidism along with parathyroid hyperplasia in a 7-year-old child, which persisted after renal transplant. Calcitonin and pamidronate failed to decrease serum calcium levels; clodronate was also inefficient...
November 2016: CEN Case Reports
https://www.readbyqxmd.com/read/28371408/two-cases-of-humoral-hypercalcemia-of-malignancy-complicating-infantile-fibrosarcoma
#11
Ryan Hirschfeld, Jennifer J G Welch, Douglas J Harrison, Robin Kremsdorf, Anjulika Chawla
We report two infants with infantile fibrosarcoma (IFS) complicated by severe hypercalcemia. Assessment demonstrated suppressed parathyroid hormone and 1,25-dihydroxyvitamin D levels with elevated circulating levels of parathyroid hormone related protein, indicating the diagnosis of humoral hypercalcemia of malignancy (HHM). HHM is a paraneoplastic syndrome rarely associated with pediatric malignancies. Hypercalcemia manifested clinically with neurologic symptoms and soft tissue calcium deposition and required aggressive management with intravenous fluids, diuretics, and supplemental electrolytes...
October 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28238808/hypophosphatasia-an-overview-for-2017
#12
Michael P Whyte
Hypophosphatasia (HPP) is the inborn-error-of-metabolism that features low serum alkaline phosphatase (ALP) activity (hypophosphatasemia) caused by loss-of-function mutation(s) of the gene that encodes the tissue-nonspecific isoenzyme of ALP (TNSALP). Autosomal recessive or autosomal dominant inheritance from among >300 TNSALP (ALPL) mutations largely explains HPP's remarkably broad-ranging severity. TNSALP is a cell-surface homodimeric phosphohydrolase richly expressed in the skeleton, liver, kidney, and developing teeth...
September 2017: Bone
https://www.readbyqxmd.com/read/28068876/tissue-engineered-model-of-human-osteolytic-bone-tumor
#13
Aranzazu Villasante, Alessandro Marturano-Kruik, Samuel T Robinson, Zen Liu, X Edward Guo, Gordana Vunjak-Novakovic
Ewing's sarcoma (ES) is a poorly differentiated pediatric tumor of aggressive behavior characterized by propensity to metastasize to bone. Interactions between the tumor and bone cells orchestrate a vicious cycle in which tumor cells induce osteoclast differentiation and activation to cause osteolytic lesions, broken bones, pain, and hypercalcemia. The lack of controllable models that can recapitulate osteolysis in ES impedes the development of new therapies and limits our understanding of how tumor cells invade bone...
February 2017: Tissue Engineering. Part C, Methods
https://www.readbyqxmd.com/read/27938597/-diagnosis-of-a-case-with-williams-beuren-syndrome-with-nephrocalcinosis-using-chromosome-microarray-analysis
#14
S J Jin, M Liu, W J Long, X P Luo
Objective: To explore the clinical phenotypes and the genetic cause for a boy with unexplained growth retardation, nephrocalcinosis, auditory anomalies and multi-organ/system developmental disorders. Method: Routine G-banding and chromosome microarray analysis were applied to a child with unexplained growth retardation, nephrocalcinosis, auditory anomalies and multi-organ/system developmental disorders treated in the Department of Pediatrics of Tongji Hospital Affiliated to Tongji Medical College of Huazhong University of Science and Technology in September 2015 and his parents to conduct the chromosomal karyotype analysis and the whole genome scanning...
December 2, 2016: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/27832822/sarcoidosis-presenting-as-granulomatous-myositis-in-a-16-year-old-adolescent
#15
Amir B Orandi, Eric Eutsler, Cole Ferguson, Andrew J White, Maleewan Kitcharoensakkul
BACKGROUND: Sarcoidosis is a multi-system disease characterized by the presence of non-caseating epithelioid granulomas in affected tissues, including skeletal muscle. These organized collections of immune cells have important pathophysiologic action including cytokine production leading to inflammation as well as enzymatic conversion of cholecalciferol to calcitriol via 1-α hydroxylase. There are limited reports of isolated granulomatous myositis causing hypercalcemia in pediatric patients...
November 10, 2016: Pediatric Rheumatology Online Journal
https://www.readbyqxmd.com/read/27798933/a-pediatric-patient-with-a-cyp24a1-mutation-four-years-of-clinical-biochemical-and-imaging-follow-up
#16
Diana-Alexandra Ertl, Adalbert Raimann, Dagmar Csaicsich, Janina M Patsch, Franco Laccone, Gabriele Haeusler
BACKGROUND: A female infant was admitted to hospital due to failure to thrive. She presented hypercalcemia (4.09 mmol/L, normal range: 2.2-2.65 mmol/L), high 25-hydroxyvitamin D (283 nmol/L, normal range: 75-250 nmol/L), 1,25-dihydroxyvitamin D in the upper normal range, and low parathyroid hormone. Vitamin D intoxication was suspected. The patient had received routine rickets prophylaxis. METHODS: Williams-Beuren syndrome was genetically excluded. Sequencing of CYP24A1 showed 2 mutations: c...
2017: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/27744630/metabolic-risk-factors-in-pediatric-stone-formers-a-report-from-an-emerging-economy
#17
Kiran Imran, Mirza Naqi Zafar, Uzma Ozair, Sadia Khan, Syed Adibul Hasan Rizvi
The goal of this study was to investigate metabolic risk factors in pediatric stone formers in an emerging economy. A prospective, data collection enrolled 250 children age <1-15 years at our center. Risk factors were evaluated by gender and in age groups <1-5, 6-10 and 11-15 years. Patients were evaluated for demographics, blood and 24 h urine for calcium, magnesium, phosphate, uric acid, electrolytes and additional protein, citrate, ammonia and oxalate in urine. All reported values were two sided and statistical significance was considered at p value ≤0...
August 2017: Urolithiasis
https://www.readbyqxmd.com/read/27683282/comparison-of-300-000-and-600-000%C3%A2-iu-oral-vitamin-d-bolus-for-vitamin-d-deficiency-in-young-children
#18
Jiyalal Harnot, Sanjay Verma, Sunit Singhi, Naveen Sankhyan, Naresh Sachdeva, Bhavneet Bharti
OBJECTIVE: To compare the efficacy and safety of 300,000 and 600,000 IU vitamin-D single-oral dose for the treatment of vitamin-D deficiency (VDD) in young children (3 mo - 3 y). METHODS: This double-blind randomized control trial (Clinical Trail Registration-CTRI/2012/05/002621) was conducted in the Pediatric out-patient department (OPD) at a tertiary-care referral hospital. Children (3 mo - 3 y) with clinical/radiological features suggestive of VDD were screened; those found to be having 25(OH)D below 15 ng/ml and meeting inclusion and exclusion criteria's were enrolled after taking informed consent...
February 2017: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/27574996/hypercalcemia-in-patients-with-williams-beuren-syndrome
#19
MULTICENTER STUDY
Sampat Sindhar, Michael Lugo, Mark D Levin, Joshua R Danback, Benjamin D Brink, Eric Yu, Dennis J Dietzen, Amy L Clark, Carolyn A Purgert, Jessica L Waxler, Robert W Elder, Barbara R Pober, Beth A Kozel
OBJECTIVE: To evaluate the timing, trajectory, and implications of hypercalcemia in Williams-Beuren syndrome (WBS) through a multicenter retrospective study. STUDY DESIGN: Data on plasma calcium levels from 232 subjects with WBS aged 0-67.1 years were compared with that in controls and also with available normative data. Association testing was used to identify relevant comorbidities. RESULTS: On average, individuals with WBS had higher plasma calcium levels than controls, but 86...
November 2016: Journal of Pediatrics
https://www.readbyqxmd.com/read/27394135/mutational-spectrum-of-cyp24a1-gene-in-a-cohort-of-italian-patients-with-idiopathic-infantile-hypercalcemia
#20
Maddalena Gigante, Luisa Santangelo, Sterpeta Diella, Gianluca Caridi, Lucia Argentiero, Maria Michela D''Alessandro, Marida Martino, Emma Diletta Stea, Gianluigi Ardissino, Vincenza Carbone, Silvana Pepe, Domenico Scrutinio, Silvio Maringhini, Gian Marco Ghiggeri, Giuseppe Grandaliano, Mario Giordano, Loreto Gesualdo
BACKGROUND/AIMS: Loss-of-function mutations in the CYP24A1 gene, which encodes the vitamin D-24 hydroxylase, have been recognized as a cause of elevated 1,25-dihydroxyvitamin D concentrations, hypercalcemia, hypercalciuria, nephrocalcinosis and nephrolithiasis in infants and adults. As only a case report describing 2 adult patients has been reported in Italian population, we report here the mutation analysis of CYP24A1 gene in an Italian cohort of 12 pediatric and adult patients with idiopathic infantile hypercalcemia (IIH)...
2016: Nephron
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