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pediatric hypercalcemia

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https://www.readbyqxmd.com/read/28670142/prevalence-of-hypercalcemia-of-malignancy-among-pediatric-cancer-patients-in-the-uk-clinical-practice-research-datalink-database
#1
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
#2
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...
June 22, 2017: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/28598460/hypercalcemia-due-to-nasopharyngeal-carcinoma
#3
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
#4
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
#5
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...
March 29, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28238808/hypophosphatasia-an-overview-for-2017
#6
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...
February 24, 2017: Bone
https://www.readbyqxmd.com/read/28068876/tissue-engineered-model-of-human-osteolytic-bone-tumor
#7
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
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
https://www.readbyqxmd.com/read/27339816/p210-bcr-abl1-positive-pediatric-b-lineage-acute-lymphoblastic-leukemia-presenting-with-hypercalcemia
#15
Karthik Bommannan, Sidharth Totadri, Man Updesh Singh Sachdeva, Shano Naseem, Amita Trehan, Neelam Varma
No abstract text is available yet for this article.
June 24, 2016: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/26761480/severe-hypercalcemia-as-a-form-of-acute-lymphoblastic-leukemia-presentation-in-children
#16
Andreia Luís Martins, Marta Moniz, Pedro Sampaio Nunes, Clara Abadesso, Helena Cristina Loureiro, Ximo Duarte, Helena Isabel Almeida
Hypercalcemia is a rare metabolic disorder in children and is potentially fatal. It has a wide differential diagnosis, including cancer. Here, we report the case of a previously healthy 3-year-old who was admitted to the emergency room with fatigue, hyporeactivity, fever and limping gait that had evolved over 5 days and that was progressively worsening. On examination the patient was unconscious (Glasgow coma score: 8). Laboratory tests indicated severe hypercalcemia (total calcium 21.39mg/dL, ionized calcium 2...
October 2015: Revista Brasileira de Terapia Intensiva
https://www.readbyqxmd.com/read/26650250/parathyroid-cancer-in-the-pediatric-patient
#17
REVIEW
Jesse T Davidson, Catherine G Lam, Rose B McGee, Armita Bahrami, Alicia Diaz-Thomas
CONTEXT: Parathyroid carcinoma is exceedingly rare in children. We describe a case of parathyroid cancer in a young female who was originally classified as benign and managed surgically. Upon her diagnosis with malignancy, concurrent with metastatic lung involvement, she was referred for medical and surgical palliation to control her symptomatic hypercalcemia. We briefly review published childhood cases, consider the challenges in differentiating malignant from benign hyperparathyroidism in this age group, and discuss the association of CDC73 mutations with parathyroid carcinoma...
January 2016: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/26594832/toxic-metabolic-risk-factors-in-pediatric-pancreatitis-recommendations-for-diagnosis-management-and-future-research
#18
REVIEW
Sohail Z Husain, Veronique Morinville, John Pohl, Maisam Abu-El-Haija, Melena D Bellin, Steve Freedman, Peter Hegyi, Melvin B Heyman, Ryan Himes, Chee Y Ooi, Sarah J Schwarzenberg, Danielle Usatin, Aliye Uc
Pancreatitis in children can result from metabolic and toxic risk factors, but the evidence linking these factors is sparse. We review the evidence for association or causality of these risk factors in pancreatitis, discuss management strategies, and their rationale. We conducted a review of the pediatric pancreatitis literature with respect to the following risk factors: hyperlipidemia, hypercalcemia, chronic renal failure, smoking exposure, alcohol, and medications. Areas of additional research were identified...
April 2016: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/26540764/nephrolithiasis-and-nephrocalcinosis-in-children-metabolic-and-genetic-factors
#19
REVIEW
Velibor Tasic, Zoran Gucev
Diagnosis and management of pediatric nephrolithiasis/nephrocalcinosis is a very complex and challenging task for every pediatrician. It is based on correct. disease history taking, which may guide to the mode of inheritance (dominant, recessive, x-linked). Ethnicity and consanguinity should also be investigated since they predispose to high prevalence of certain disorders. One should always begin with cheap and available screening tests. Herein we will review clinical, biochemical, metabolic and genetic characteristics of the inherited diseases which lead to nephrolithiasis/nephrocalcinosis, such as: idiopathic hypercalciuria, renal hypophosphatemia, renal tubular acidosis, idiopathic infantile hypercalcemia, Dent disease, familial hypomagnesemia with hypercalciuria and nephrocalcinosis, hypocitraturia, cystinuria, primary hyperoxaluria and renal hypouricemia...
September 2015: Pediatric Endocrinology Reviews: PER
https://www.readbyqxmd.com/read/26430336/calcium-homeostasis-disorder-during-and-after-neonatal-extracorporeal-membrane-oxygenation
#20
Jerome Rambaud, Isabelle Guellec, Julia Guilbert, Pierre-Louis Léger, Sylvain Renolleau
BACKGROUND AND AIMS: Extracorporeal membrane oxygenation (ECMO) is used during pediatric resuscitation in case of refractory hypoxemia or septic shock under maximum therapy. Previous studies describe calcium homeostasis dysregulation. The aim of this study was to confirmed of calcium homeostasis dysregulation in neonates under ECMO and supposed news explanation. SUBJECTS AND METHODS: From November 2012 to July 2013, we performed a prospective single center observational study...
September 2015: Indian Journal of Critical Care Medicine
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