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Hypocalcaemia

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https://www.readbyqxmd.com/read/29777882/factors-predicting-hypocalcemia-after-total-thyroidectomy-a-retrospective-cohort-analysis
#1
Claudius Falch, Jan Hornig, Moritz Senne, Manuel Braun, Alfred Konigsrainer, Andreas Kirschniak, Sven Muller
BACKGROUND: Hypocalcemia after total thyroidectomy is the most frequent complication resulting in prolongation of hospitalisation. Therefore we aimed to analyse clinical risk factors predictive for hypocalcemia and its long term persistence after total thyroidectomy. METHODS: Retrospective analysis of patients undergoing total thyroidectomy from 2005 until 2013. Outcome measures were initial postoperative hypocalcemia defined as serum calcium below 2.0 mmol/l after total thyroidectomy within 48 h and persistent hypocalcemia defined as serum calcium below 2...
May 16, 2018: International Journal of Surgery
https://www.readbyqxmd.com/read/29721800/the-timing-of-parathyroid-hormone-measurement-defines-the-cut-off-values-to-accurately-predict-postoperative-hypocalcemia-a-prospective-study
#2
Eduardo Bardou Yunes Filho, Rafael Vaz Machry, Rodrigo Mesquita, Rafael Selbach Scheffel, Ana Luiza Maia
PURPOSE: Serum intact parathyroid hormone (iPTH) level is an early marker of post-thyroidectomy hypocalcemia. However, lack of methodological standardization to define timing and cut-off points of iPTH measurement limit its clinical applicability. Here, we evaluated the relationship between two distinct postoperative time sampling and iPTH accuracy on predicting hypocalcemia. METHODS: iPTH was measured within 4 h after surgery (iPTH 4 h) and on the morning of the first postoperative day (iPTH 1st PO)...
May 2, 2018: Endocrine
https://www.readbyqxmd.com/read/29684104/maternal-vitamin-d-supplementation-during-pregnancy
#3
Elizabeth M Curtis, Rebecca J Moon, Nicholas C Harvey, Cyrus Cooper
Introduction: Maternal vitamin D status in pregnancy has been linked to many health outcomes in mother and offspring. A wealth of observational studies have reported on both obstetric outcomes and complications, including pre-eclampsia, gestational diabetes, mode and timing of delivery. Many foetal and childhood outcomes are also linked to vitamin D status, including measures of foetal size, body composition and skeletal mineralization, in addition to later childhood outcomes, such as asthma...
April 19, 2018: British Medical Bulletin
https://www.readbyqxmd.com/read/29663329/prophylactic-thyroidectomy-in-children-with-multiple-endocrine-neoplasia-type-2
#4
F P Prete, T Abdel-Aziz, C Morkane, C Brain, T R Kurzawinski
BACKGROUND: In patients with multiple endocrine neoplasia type 2 (MEN2) syndrome, genetic testing offers early diagnosis, stratifies the risk of developing medullary thyroid cancer (MTC) and informs the timing of thyroidectomy. The efficacy of treatment, which depends on timely and safe surgery, is not well established. METHODS: This was a retrospective review of diagnostic and clinicopathological outcomes of prophylactic thyroidectomy in children with MEN2 between 1995 and 2013 in the UK...
April 17, 2018: British Journal of Surgery
https://www.readbyqxmd.com/read/29627804/should-total-calcium-be-adjusted-for-albumin-a-retrospective-observational-study-of-laboratory-data-from-central-norway
#5
Ingrid Alsos Lian, Arne Åsberg
OBJECTIVES: Albumin-adjusted total calcium is often used as a surrogate marker for free calcium to evaluate hypocalcaemia or hypercalcaemia. Many adjustment formulas based on simple linear regression models have been published, and continue to be used in spite of questionable diagnostic accuracy. In the hope of finding a more pure albumin effect on total calcium, we used multiple linear regression models to adjust for other relevant variables. The regression coefficients of albumin were used to construct local adjustment formulas, and we tested whether the diagnostic accuracy was improved compared with previously published formulas and unadjusted calcium...
April 7, 2018: BMJ Open
https://www.readbyqxmd.com/read/29622714/hypocalcaemia-in-an-adult-the-importance-of-not-overlooking-the-cause
#6
Catarina Abrantes, Daniela Brigas, Hugo Jorge Casimiro, Margarida Madeira
A 58-year-old male patient was admitted at the São Bernardos's Hospital (Setúbal, Portugal) with generalised muscle spasms, dyspnoea, laryngospasm and bronchospasm in the context of severe hypocalcaemia. Despite efforts to correct serum calcium, it remained below average, leading to question the true cause of hypocalcaemia. Low parathyroid hormone and 25-hydroxyvitamin D, along with facial anomalies, palate defect and cognitive impairment with concomitant psychiatric disorder led to a suspicion of a DiGeorge/velocardiofacial/22q11...
April 5, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29599414/insights-into-calcium-sensing-receptor-trafficking-and-biased-signalling-by-studies-of-calcium-homeostasis
#7
Caroline Gorvin
The calcium-sensing receptor (CaSR) is a class C G-protein coupled receptor (GPCR) that detects extracellular calcium concentrations, and modulates parathyroid hormone secretion and urinary calcium excretion to maintain calcium homeostasis. The CaSR utilises multiple heterotrimeric G-proteins to mediate signalling effects including: activation of intracellular calcium release; mitogen-activated protein kinase (MAPK) pathways; membrane ruffling; and inhibition of cAMP production. By studying germline mutations in the CaSR and proteins within its signalling pathway that cause hyper- and hypocalcaemic disorders, novel mechanisms governing GPCR signalling and trafficking have been elucidated...
March 29, 2018: Journal of Molecular Endocrinology
https://www.readbyqxmd.com/read/29595868/iatrogenic-hypoparathyroidism-after-surgery-for-retrosternal-goitre-a-single-centre-retrospective-analysis
#8
G Damiano, G Cocchiara, V D Palumbo, F Fatica, F Caternicchia, A I Lo Monte, M Cajozzo
AIM: The aim of this study is to assess, retrospectively, the incidence of secondary hypoparathyroidism after total thyroidectomy in patients with retrosternal goitre. MATERIAL AND METHODS: From January 2009 to September 2015, 622 patients who undergone total thyroidectomy for goitre, were retrospectively observed. The patients were divided into two group: Group A, including 58 patients with retrosternal goitre and Group B, including 562 patients with in situ goitre...
March 2018: La Clinica Terapeutica
https://www.readbyqxmd.com/read/29594052/parathyroid-hormone-assays-following-total-thyroidectomy-is-there-a-predictive-value
#9
Camille Galy-Bernadoy, Benjamin Lallemant, Guillaume Chambon, Huy Trang Pham, Christophe Reynaud, Caroline Alovisetti, Quentin Bonduelle, Anne Marie Guedj, Serge Lumbroso, David-Paul De Brauwere
Objectives: Parathyroid hormone (PTH) is a risk marker for hypoparathyroidism (hypoPTH). This study aimed to determine the predictive values of early PTH assays carried out at the moment of skin closure (PTH SC), to establish a treatment algorithm, identifying two threshold values. We assessed the reproducibility of this approach with two different immunoassay kits (hypoPTH) after total thyroidectomy, but its practical application is not consensual. Study Design: We conducted a prospective descriptive study, including all patients who underwent a total thyroidectomy between March 2012 and November 2013...
January 2018: European Thyroid Journal
https://www.readbyqxmd.com/read/29572372/parkinson-s-disease-with-hypocalcaemia-adult-presentation-of-22q11-2-deletion-syndrome
#10
Fradique Moreira, Ana Brás, Joana Ramos Lopes, Cristina Januário
A growing amount of evidence indicates that 22q11.2 deletion syndrome (22q11.2DS) increases the risk of early-onset Parkinson's disease (EOPD). Here, we describe a 36-year-old patient with EOPD. The patient presented with 22q11.2DS features, including associated cognitive disabilities, hypocalcaemia and facial dysmorphia that led us to screen for and confirm this deletion. In addition, hypocalcaemia and vitamin D deficiency were the main factors responsible for severe, painful muscle spasms that were non-levodopa (L-Dopa) responsive and remitted after calcium and vitamin D replacement therapy...
March 22, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29560810/menstrual-disorders-and-premenstrual-symptoms-in-adolescents-prevalence-and-relationship-to-serum-calcium-and-vitamin-d-concentrations
#11
Afsane Bahrami, Hamidreza Bahrami-Taghanaki, Mozhgan Afkhamizadeh, Amir Avan, Zahra Mazloum Khorasani, Habibollah Esmaeili, Bahareh Amin, Samine Jazebi, Delaram Kamali, Gordon A Ferns, Hamid Reza Sadeghnia, Majid Ghayour-Mobarhan
There have been several studies evaluating the association between vitamin and mineral status and menstrual disturbance. In the present study, we aimed to assess the relationship between the menstrual bleeding pattern and premenstrual syndrome (PMS) symptoms with serum 25-hydroxyvitamin D, and calcium levels in adolescent girls. A cross-sectional study was carried out in 897 high school girls from northeastern Iran. The prevalence of hypocalcaemia, normal serum calcium and hypercalcaemia was 27.1, 59.8 and 13...
March 21, 2018: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/29549681/update-on-sutureless-thyroidectomy
#12
R Ruggiero, G Docimo, A Bosco, M Lanza Volpe, G Terracciano, A Gubitosi, L Docimo
INTRODUCTION: The Harmonic scalpel ("Focus" and the new version "Focus+") is one of the first devices for surgical simultaneous cutting and tissue coagulation which allows to obtain dissection and hemostasis by direct application of ultrasound and allows minimally invasive surgical procedures with minimal lateral thermal spread and, thus, minimal adjacent tissue destruction. The aim of the study is to complete the previous study that we made in 2014, based on the TT performed between January 2008 and December 2013, with new data about TT performed in our Surgical Division between January 2014 and December 2016 and compare the outcome using the Ultrasonic scalpel versus the device Ligasure in term of safety, operative time, overall drainage volume, complications, hospital stay...
January 2018: Il Giornale di Chirurgia
https://www.readbyqxmd.com/read/29537114/blood-calcium-glucose-and-haematology-profiles-of-parturient-bitches-diagnosed-with-uterine-inertia-or-obstructive-dystocia
#13
B L Frehner, I M Reichler, S Keller, S Goericke-Pesch, O Balogh
Bitches with dystocia most often present with clinical signs of uterine inertia (UI). The aetiology of myometrial dysfunction in most of these cases is still not elucidated. We compared blood ionized calcium (iCa) and glucose concentrations in bitches diagnosed with primary UI (PUI, n = 14), secondary UI (SUI, n = 6) or obstructive dystocia (OD, n = 6), and we described their haematology profiles. Bitches diagnosed with UI had a patent birth canal and delivered no puppies yet (PUI) or only part of the whole litter (SUI)...
June 2018: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/29536468/-management-of-the-dry-and-transition-periods-of-dairy-cattle-in-free-stall-housing-systems-in-lower-saxony-part-2-risk-factores-for-subclinical-ketosis-hypocalcaemia-and-increased-lipomobilisation
#14
Pamela Oetting-Neumann, Karl Rohn, Martina Hoedemaker
OBJECTIVE: Determination of the frequency of subclinical hypocalcaemia, increased lipomobilisation and subclinical ketosis as problems in dairy herds and identification of possible risk factors. MATERIAL AND METHODS: Information was obtained from 51 dairy farms on husbandry, feeding, management of the cows and heifers, animal health and prophylactic treatments using a questionnaire. Blood samples from 20% of the cows and 30% of the heifers of each farm (= herd sample) were collected in the week ante partum (a...
February 2018: Tierärztliche Praxis. Ausgabe G, Grosstiere/Nutztiere
https://www.readbyqxmd.com/read/29477991/severe-hypophosphataemia-a-rare-cause-of-postoperative-muscle-weakness
#15
Aarti Narayan, Arun Subramanian
We report a case of severe generalised muscle weakness in a 66-year-old man who underwent revision of left knee arthroplasty. On postoperative day 1, he developed non-focal muscle weakness and shortness of breath which progressed over a 6-hour period. Serum phosphorus level was severely low at 0.5 mg/dL, along with mild degree of hypokalaemia, hypocalcaemia and hypomagnesaemia. His symptoms completely resolved after emergent phosphorus replacement. The authors believe this case is of educational interest to physicians as generalised muscle weakness is an uncommon presentation of severe hypophosphataemia...
February 23, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29469001/changes-of-macrominerals-and-calcitropic-hormones-in-serum-of-periparturient-dairy-cows-subject-to-subclinical-hypocalcaemia
#16
Chuanjiang Cai, Yezi Kong, Dianjun Wu, Jianguo Wang
No abstract text is available yet for this article.
February 2018: Journal of Dairy Research
https://www.readbyqxmd.com/read/29445220/association-of-admission-serum-levels-of-vitamin-d-calcium-phosphate-magnesium-and-parathormone-with-clinical-outcomes-in-neurosurgical-icu-patients
#17
Seyed Hossein Ardehali, Salman Dehghan, Ahmad Reza Baghestani, Aynaz Velayati, Zahra Vahdat Shariatpanahi
To evaluate the association of admission serum levels of 25(OH)D, parathormone and the related electrolytes with severity of illness and clinical outcomes in neurosurgical critically ill patients, serum levels of 25(OH)D, parathormone, calcium, magnesium, and phosphate, along with APACHE II score were measured for 210 patients upon admission. Mean serum 25(OH)D was 21.1 ± 7.4 ng/mL. 25(OH)D deficiency (less than 20 ng/dL) and elevated serum parathormone level were found in 47.6% and 38% of patients respectively...
February 14, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29434062/glucose-tolerance-insulin-secretion-sensitivity-characteristics-in-indian-children-with-cystic-fibrosis-a-pilot-study
#18
Vandana Jain, Santosh Kumar, Naval K Vikram, Mani Kalaivani, Surya Prakash Bhatt, Rajni Sharma, Kumar Kabra Sushil
Background & objectives: Cystic fibrosis (CF) is a life-limiting genetic condition resulting in chronic respiratory infections, pancreatic enzyme insufficiency and associated complications. This pilot study was undertaken to assess the glucose tolerance and insulin secretion and sensitivity among Indian children with CF. Methods: Children with CF under regular follow up at the Paediatric Pulmonology Clinic of a tertiary care hospital in New Delhi, India, were enrolled...
October 2017: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/29429912/denosumab-versus-zoledronic-acid-in-bone-disease-treatment-of-newly-diagnosed-multiple-myeloma-an-international-double-blind-double-dummy-randomised-controlled-phase-3-study
#19
Noopur Raje, Evangelos Terpos, Wolfgang Willenbacher, Kazuyuki Shimizu, Ramón García-Sanz, Brian Durie, Wojciech Legieć, Marta Krejčí, Kamel Laribi, Li Zhu, Paul Cheng, Douglas Warner, G David Roodman
BACKGROUND: Multiple myeloma is characterised by monoclonal paraprotein production and osteolytic lesions, commonly leading to skeletal-related events (spinal cord compression, pathological fracture, or surgery or radiotherapy to affected bone). Denosumab, a monoclonal antibody targeting RANKL, reduces skeletal-related events associated with bone lesions or metastases in patients with advanced solid tumours. This study aimed to assess the efficacy and safety of denosumab compared with zoledronic acid for the prevention of skeletal-related events in patients with newly diagnosed multiple myeloma...
March 2018: Lancet Oncology
https://www.readbyqxmd.com/read/29423930/saliva-with-reduced-calcium-and-phosphorous-concentrations-effect-on-erosion-dental-lesions
#20
Giovanna Corrêa Denucci, Taís Fonseca Mantilla, Flávia Lucisano Botelho Amaral, Roberta Tarkany Basting, Fabiana Mantovani Gomes França, Cecilia Pedroso Turssi
OBJECTIVES: To investigate whether saliva formulations with reduced calcium (Ca) and inorganic phosphorous (Pi) concentration would affect dental erosion caused by hydrochloric acid (HCl). METHODS: Enamel and root dentine bovine slabs were embedded, polished and measured for surface Knoop microhardness (SMH). After reference areas were created, specimens were exposed to HCl solution (0.01M; pH 2; 120s) and immersed in artificial salivas (6h) containing three different Ca/Pi concentrations (n=15), which simulate serum conditions of normo-, mild- or severe hypocalcaemia...
February 8, 2018: Oral Diseases
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