RESUMOIntrodução: A toxicidade da vitamina D é rara e potencialmente grave. As características clínicas da hipervitaminose D são decorrentes, principalmente, da hipercalcemia. Relato de caso: Feminina, 50 anos, em acompanhamento no serviço de endocrinologia e metabologia do HC-UFPR devido bócio multinodular (BMN) tóxico, sendo iniciado tratamento com tapazol. Encaminhada para tireoidectomia total pelo serviço de cirurgia de cabeça e pescoço do HC-UFPR. Evoluiu, no pós operatório, com hipoparatireoidismo e hipocalcemia grave sintomática, necessitando reposição de gluconato de cálcio endovenoso. Recebeu alta hospitalar com cálcio total de 8,2mg/dl e prescrição de calcitriol 0,25mcg 6 comprimidos (cp) ao dia, carbonato de cálcio (CaCO3) 500mg 8 cp ao dia e vitamina D3 15.000U/semana e retorno ambulatorial em 2 semanas. No retorno, três meses após, queixa de náuseas, vômitos, hiporexia e perda de 5,8kg em dois meses, apresentando sinais de desidratação ao exame físico. Cálcio total no retorno de 11,4mg/dl, PTH < 5,00pg/ml, fósforo (Pi) 3,5mg/dl, albumina (alb) 3,9g/dl, creatinina (Cr) 1,5mg/dl. Suspenso CaCO3 e vitamina D, reduzida dose de calcitriol para 2 cp ao dia e orientada hidratação via oral. Após 1 semana, melhora dos sintomas, com cálcio total de 8,1mg/dl, Pi 3,9mg/dl, alb 3,8g/dl, PTH 10,70pg/ml, 25-OH-vitamina D 43ng/ml, Cr 1,1mg/dl. Mantida dose de calcitriol e reiniciado CaCO3 na dose de 1g/dia. Novo retorno em um mês, assintomática, com cálcio total de 8,3mg/dl, PTH 20pg/ml e 25-OH-vitamina D 41ng/ml, Cr 0,8mg/dl, compatível com hipoparatireoidismo transitório e intoxicação por calcitriol resolvida. Conclusão: Diante de um quadro de vômitos persistentes e hipercalcemia, na presença de hormônio da paratireódide normal ou baixo, o diagnóstico de intoxicação por vitamina D deve ser suspeitado e, a normalização de seus níveis alivia os sintomas e pode prevenir lesão renal aguda.Descritores: intoxicação, calcitriol, hipercalcemia ABSTRACT Introduction: Vitamin D toxicity is rare and potentially serious. The clinical features of hypervitaminosis D are due mainly to the hypercalcemia. Case report: Female, 50, followed at endocrinology and metabology HC-UFPR due multinodular goiter toxic, and treatment with tapazol. Forwarded to total thyroidectomy by the head and neck surgery department of the HC-UFPR. It evolved in the postoperative with hypoparathyroidism and symptomatic severe hypocalcemia, requiring calcium gluconate intravenous replacement. He was discharged with total calcium of 8,2mg/dl and calcitriol prescription 0,25mcg 6 tablets per day, calcium carbonate (CaCO3) 500mg 8 tablets per day and vitamin D3 15.000U/week and outpatient in two weeks. Three months later, complaining of nausea, vomiting, appetite loss and loss of 5.8 kg in two months, showing signs of dehydration on physical examination. Total calcium in the return 11,4mg/dl, PTH <5,00pg/ml, phosphorus (P) 3.5 mg/dL albumin (alb) 3.9g/dL creatinine (Cr) 1.5 mg/dl. Suspended CaCO3 and vitamin D, reduced dose of calcitriol for 2 tablets daily a...
RESUMOIntrodução: A ascite causada por hipotireoidismo é uma condição rara e sua causa ainda não está bem definida. Quando causas comuns de ascite forem excluídas, a possibilidade de ascite mixedematosa deve ser considerada e a função tireoidiana deve ser avaliada. Objetivo: relatar um caso de ascite mixedematosa. Relato de caso: Paciente feminina, 57 anos, encaminhada para abordagem cirúrgica de prolapso retal e uterino. No internamento, observada ascite volumosa e iniciada investigação etiológica. Constatado GASA de 2 e descartadas outras causas de ascite por exames complementares, foram solicitados exames laboratoriais para avaliação da função tireoidiana, cujos resultados foram compatíveis com hipotireoidismo (TSH >100 Ui/ml e T4L <0.4 ng/dl). Foi iniciado tratamento com levotiroxina e a paciente recebeu alta com normalização da função tireoidiana e evidente melhora da ascite. Conclusão: Em caso de ascite mixedematosa, haverá uma resposta importante após o tratamento do hipotireoidismo somente. A resposta ao uso de levotiroxina confirma a etiologia da ascite secundária ao hipotireoidismo.Descritores: hipotireoidismo, ascite e ascite mixedematosa ABSTRACT Introduction: Ascites caused by hypothyroidism is a rare condition and its cause is not well defined. When common causes of ascites are excluded, the possibility of myxedema ascites should be considered and thyroid function should be assessed. Objective: To report a case of myxedema ascites. Case report: A female patient, 57 years old, was referred for surgical treatment of rectal and uterine prolapse. In the hospital, we observed large ascites and started etiological investigation. A SAAG of 2 was observed, and common causes of ascites had been ruled out through complimentary exams. Laboratory tests were requested to evaluate thyroid function and the results were consistent with hypothyroidism (TSH >100 UI/ml and fT4 <0.4 ng/dl). Treatment was started with levothyroxine and the patient was discharged with normalization of thyroid function and great improvement of ascites. Conclusion: In case of myxedema ascites, there will be an important improvement after adequate treatment. The impressive response to the use of levothyroxine confirms the etiology of ascites secondary to hypothyroidism.
25 hydroxyvitamin D [25(OH)D] is the major metabolite for ascertaining vitamin D status, which circulates bound to a speci c carrier (vitamin D-binding protein -VDBP). A portion that circulates unbound vary according to the VDBP genotype. This study evaluates the behavior of different forms of 25(OH)D, before and after supplementation with 14,000 IU of vitamin D3, weekly for 12 weeks, in individuals with primary hyperparathyroidism and controls. Fifty-six patients with active primary hyperparathyroidism (PHPT) and 64 paired controls (CTRL), not taking vitamin D3 for the last three months, were enrolled. The genetic isotypes of VDBP were determined to calculate bioavailable and free 25(OH)D. A p<0.05 was considered signi cant.There were no statistical differences in free, bioavailable, and total 25(OH)D levels between PHPT and CTRL groups at baseline. The distribution of VDBP haplotypes 1s/1s, 1f/1f, 1s/1f, 2/2, 1s/2, and 1f/2 was similar between groups. After supplementation, all three forms of 25(OH)D proportionally increased within each group, although the percentage increment was lower in the PHPT group (p<0.05).Total 25(OH)D is better correlated with PTH in the PHPT group than bioavailable and free 25(OH)D (r=-0.41; p<0.05).The concentrations of total, free, and bioavailable 25(OH)D were similar in both PHPT and CTRL groups, and all forms increased proportionally after supplementation, although this increment percentage was higher in the CTRL group, with a subsequent reduction of PTH and AP. Total 25(OH)D correlated better with PTH than other forms, suggesting no advantages in measuring free or bioavailable 25(OH)D in these situations.
A relevância e a abordagem consistente dos temas reunidos no Guia Prático em Osteometabolismo asseguraram a publicação dessa nova edição. Preparada pelos membros do Departamento de Metabolismo Ósseo e Mineral da Sociedade Brasileira de Endocrinologia e Metabologia (SBEM) e por seus colaboradores, oferece uma visão ainda mais detalhada sobre condições enfrentadas diariamente por clínicos e especialistas, como diabetes mellitus, osteoporose, hipertireoidismo e hipoparatireoidismo. Com isso, o guia mantém a sua condição como material de consulta e referência para profissionais da Endocrinologia e áreas relacionadas.
Paciente feminina de 59 anos de idade, apresentou-se ao ambulatório com história de episódios paroxísticos de sudorese, tremores, fraqueza, mal-estar geral, sonolência e taquicardia, com exame físico normal. Foi internada para investigação etiológica. Durante as primeiras horas do internamento, apresentou a tríade de whipple durante o teste de jejum prolongado, com amostra de sangue coletada, que evidenciou glicemia de 37mg/dL e insulina sérica de 19,50mUI/ml. Realizou tomografia computadorizada (TC) de abdome que revelou os seguintes achados (Figura 1). Se a paciente estivesse em idade fértil, com história pregressa de menstruações regulares, mas subsequentemente evoluindo com amenorreia e diminuição da acuidade visual, qual diagnóstico deveria ser considerado? Figura 1 Qual doença de base justifica o quadro clínico-radiológico? A. Síndrome Poliglandular autoimune tipo 1 B. Síndrome Poliglandular autoimune tipo 2 C. NEM1
Background: Vitamin D deficiency is common among PHP patients. While data are limited, some studies suggest that vitamin D deficiency may exacerbates skeletal disease in PHP. TBS is a software-based method for assessment of trabecular bone structure of the spine, based on analysis of pixels obtained in dual energy x-ray absorptiometry (DXA) images. The aim of this study was to evaluate TBS, vitamin D status, clinical and laboratorial measurements in a PHP group of patients in a search for a more accurate bone fragility test for risk assessment in this group of patients. Methods: From June/2017 to January/2019, patients who met the criteria for PHP diagnosis were included in this study. Control group was composed by age and sex-matched healthy individuals. Overall, 64 PHP and 63 controls were enrolled. Bone mineral density (BMD) measured by DXA (Hologic QDR 4500) at the lumbar spine, total hip, femoral neck, and TBS values (InSight™) were determined in both groups. Total and ionized calcium, PTH, 25-hydroxyvitamin D (25(OH)D), creatinine, alkaline phosphatase, P1NP and CTX were measured. None were in use of Vitamin D supplementation. Results: As expected, PHP patients had lower BMD values than controls in all sites (p<0.0001). TBS measurements were also reduced in PHP patients compared to controls (1233 vs 1280, p=0.0444). TBS values were inversely correlated with total calcium (CaT) and phosphorus measurements were positively correlated in the PHP patients. 25(OH)D measurements didn’t differ between groups (PHP 22.5 vs. controls 19.8 ng/mL, p=0.1699). There was a positive correlation between 25(OH)D and TBS in both PHP and controls (r= 0,3088, p= 0,0138 and r= 0,3708, p= 0,003 respectively). Considering individuals with vitamin D deficiency (25(OH)D levels <=20 ng/mL), a negative correlation between TBS and CaT measurements among PHP patients (r= -0,4391, p=0,0172) was observeed, while in controls there was a positive correlation between TBS and 25(OH)D (r= 0,3504, p= 0,0362). Conclusion: Serum total calcium presents negative correlation and phosphorus a positive one with TBS in PHP patients. We also found a correlation between TBS and 25(OH)D, both in PHP and in controls. 25(OH)D <=20 ng/mL is an independent risk factor determining degraded TBS among PHP patients and controls.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.