hrp0097p1-589 | Thyroid | ESPE2023

Thyrotropin receptor stimulating antibodies in pediatric patients with Graves’ diseases using ultra-rapid turbo bioassay

Bossowski Artur , Hatun Burak , Sawicka Beata , Stożek Karolina , Bossowski Filip , J Kahaly George

Background: Thyrotropin receptor (TSH-R) stimulating autoantibodies (TSAb) are present in 90-100% of patients with Graves’ disease (GD). TSAb are functional, impact thyroid function, and are clinically relevant. This study we performed in a pediatric patients with dynamic of Graves’ disease before and during methimazole therapy and in patient with Hashimoto’s thyroiditis using a novel and ultra-rapid TSAb andTBAb bioassay.<p class="abstex...

hrp0097p2-36 | Pituitary, Neuroendocrinology and Puberty | ESPE2023

Unusual presentation of pheochromocytoma (PCC) and paraganglioma (PGL) in two sisters with von Hippel Lindau disease (VHL)

Vieites Ana , J. Benítez Amanda , Eugenia Rodríguez María , Bignon Horacio , Sansó Gabriela

Introduction: Von Hippel-Lindau disease(VHL) is an autosomal dominantly inherited tumor syndrome that predisposes to development benign and malignant tumors. The prevalence of VHL disease is one in 36,000, and the penetrance is higher than 90%. PCC occur in up to 20% of VHL patients. Classically, it is characterized by having an adrenal location, mostly bilateral and being derived from the sympathetic nervous system, resulting in the releases of catecholamines...

hrp0098p1-196 | Sex Endocrinology and Gonads 2 | ESPE2024

Survey of pediatricians on the care provided to children with gender diversity

Alija Maria , del Rio Inés , J. Chueca Maria , Riaño Isolina

In recent years we have witnessed an increase in the demand for health care by minors with gender diversity. Comprehensive biopsychosocial care for these individuals is a complex process, which must be facilitated for all of them.Objective: The survey strategy aimed at primary care pediatricians aims to provide the starting point for proposals for improvement, in response to the needs expressed by professionals. It is also intended to co...

hrp0098p1-197 | Sex Endocrinology and Gonads 2 | ESPE2024

46 XY Gonadal Dysgenesis- Transmission of a Maternal Mosaic Novel DMRT1 Mutation

C Kennedy Elaine , Ann Lynch Sally , Deegan Nikita , J Redmond Elaine , P Hawkes Colin

We present the case of a 15-year-old girl who presented with primary amenorrhoea. On examination she had absent pubertal development (Tanner Stage B1), with a normal-appearing external vagina and vaginal opening. Investigations demonstrated elevated gonadotropins, concerning for primary gonadal failure. Pelvic ultrasound and MRI demonstrated the presence of a rudimentary uterus and the absence of visible gonads. Karyotype confirmed 46 XY. Trio exome sequencing identified a mis...

hrp0098p1-299 | Late Breaking 1 | ESPE2024

A Real-World Pharmacovigilance Assessment and Literature Review of Lymphoma Development in Lipodystrophy and Congenital Leptin Deficiency

J. Brown Rebecca , Araujo-Vilar David , Walkovich Kelly , Barbarosie Alexandru , A. Magee David , Akinci Baris , A. Oral Elif

Introduction: Metreleptin is a leptin replacement therapy used as an adjunct to diet to treat the metabolic complications of leptin deficiency in lipodystrophy, a rare disease characterised by loss of adipose tissue. Previously, identification of T-cell lymphomas in three metreleptin-treated patients with acquired generalised lipodystrophy (AGL) led to concerns of a potential link between metreleptin and lymphoma development.Meth...

hrp0098p2-261 | Sex Differentiation, Gonads and Gynaecology, and Sex Endocrinology | ESPE2024

Attitude of the pediatric endocrinologists in the accompaniment of children with gender diversity: results of a survey

Riano-Galan Isolina , J Chueca María , del Río Ines , Alija Merillas María

The care provided to minors with gender diversity (GD) in the different communities of Spain is very different. A multidisciplinary management should be carried out from the health care point of view.Objective: To know the attitude of pediatricians in the field of Pediatric Endocrinology in order to make proposals for improvement in response to the needs expressed.Material and Methods: An anonymous...

hrp0094p2-216 | Fat, metabolism and obesity | ESPE2021

The effects of dextroamphetamine treatment in children with hypothalamic obesity

Samaan J , Welling MS , de Groot CJ , Abawi O , Burghard M , Kleinendorst L , van der Voorn B , van Haelst MM , Oude Ophuis B , Kamp GA , Rotteveel J , van Schouten-Meeteren AYN , van den Akker ELT , van Santen HM ,

Introduction: Children with hypothalamic dysfunction, e.g. due to a genetic or acquired cause such as suprasellar tumours, often suffer from hyperphagia and/or decreased resting energy expenditure (REE). This process induces uncontrollable weight gain, resulting in severe hypothalamic obesity (HO). No effective treatment is available yet for HO. Amphetamines are psychostimulants that are known for their appetite reducing and REE stimulating side effects. Here,...

hrp0097fc1.4 | Adrenals and HPA Axis | ESPE2023

Response to Crinecerfont Treatment in Adolescents with Classic Congenital Adrenal Hyperplasia Is Correlated with Elevated Baseline Hormone Concentrations but Not Glucocorticoid Dose

Ron S. Newfield , Sarafoglou Kyriakie , Y. Fechner Patricia , J. Nokoff Natalie , J. Auchus Richard , G. Vogiatzi Maria , S. Jeha George , Giri Nagdeep , Roberts Eiry , Sturgeon Julia , L. Chan Jean , H. Farber Robert

Introduction: Classic congenital adrenal hyperplasia (CAH) due to 21-hydroxylase deficiency (21OHD) is a rare, autosomal disorder characterized by deficiency of cortisol and oftentimes aldosterone, elevated adrenocorticotropic hormone (ACTH), and excess androgen production. In a phase 2 study of adolescents with classic 21OHD, 14 days of treatment with the corticotropin-releasing factor type 1 receptor (CRF1) antagonist, crinecerfont, led to median percent red...

hrp0098fc8.5 | Adrenals and HPA Axis 2 | ESPE2024

Free cortisol and free 21-deoxycortisol in the clinical evaluation of adrenal insufficiency in congenital adrenal hyperplasia

P.H. Adriaansen Bas , Utari Agustini , J. Olthaar Andre , C.B.M. van der Steen Rob , J. Pijnenburg-Kleizen Karijn , Berkenbosch Lizanne , N. Span Paul , C.G.J. Sweep Fred , L. Claahsen-van der Grinten Hedi , E. van Herwaarden Antonius

Background: Some patients with classic congenital adrenal hyperplasia (CAH) due to 21-hydroxylase deficiency (21OHD) survive without glucocorticoid treatment, despite low total cortisol levels. This may be caused by accumulating precursor steroids such as 21-deoxycortisol (21DF), which could contribute to the glucocorticoid activity. In addition, these precursor steroids may decrease the cortisol-protein binding, thereby increasing the free (biologically activ...

hrp0095rfc3.2 | Early Life and Multisystem Endocrinology | ESPE2022

The Hypoglycaemia Error Grid: a UK-wide Consensus on CGM Accuracy Assessment in Hypoglycaemia due to Congenital Hyperinsulinism

Worth Chris , J Dunne Mark , Salomon-Estebanez Maria , Harper Simon , W Nutter Paul , Dastamani Antonia , Senniappan Senthil , Banerjee Indraneel

Background and Objective: Continuous Glucose Monitoring (CGM) is gaining in popularity for patients with paediatric hypoglycaemia disorders such as Congenital Hyperinsulinism (CHI), but no standard measures of accuracy or associated clinical risk are available. A small number of studies have shown suboptimal accuracy of CGM in CHI but assessments have been inconsistent, incomplete and offer no measure of clinical application. Error grids that categorise clinic...