ESPE Abstracts

Introduction: Only 1.8% of thyroid malignancies occur during childhood, explaining very limited pediatric data. Most frequent in children are papillary thyroid carcinoma (PTC), occurring after exposure to radiation, and presenting as a thyroid nodule ± cervical lymph nodes. PTC may present as diffusely infiltrating disease of the thyroid with microcalcifications. We report an uncommon presentation of a PTC in a 7 year old boy.Case report: The boy wa...

Background: We describe our experience in medical therapy for invasive somatotroph pituitary macroadenomas in 8 children or adolescents presenting with acromegaly/gigantism, in terms of growth and IGF-I levels control.Patients: Eight children, aged 5 to 17 years (median 12.4 years), presented with growth hormone (GH) hypersecretion related to somatotroph pituitary macroadenomas with cavernous sinus invasion in 6/8. Genetic testing revealed AIP mutation i...

Background: PAPP-A2 (pregnancy-associated plasma protein A2) deficiency, caused by homozygous mutations in the PAPP-A2 gene results in a novel syndrome of significant growth failure. PAPP-A2 cleaves IGF binding proteins 3 and 5, thereby freeing IGF-I from its ternary complex and allowing it to become biologically active. We recently reported the first two families with PAPP-A2 mutations. Response to recombinant human IGF-I (rhIGF-1) in these patients is unknown.<p class="a...

Background: Monogenic diabetes (MD) remains undiagnosed in more than 90% of the cases. However, precise, quick and cost-effective diagnosis is important to choose an adequate treatment and to avoid long-term complications.Objective and hypotheses: To develop and validate a diagnostic tool to improve diagnosis rate of MD in Switzerland, as well as to open new research directions.Method: Targeted next-generation sequencing (NGS) of 3...

Background: Familial isolated growth hormone deficiency (IGHD) type II is autosomal dominantly inherited and caused by splice-site mutations and nucleotide substitutions in the GH1 gene. The missense mutation R183H is a well-described genetic variant that causes familial IGHD type II. Individuals with this mutation have releasable GH stores, but GH secretion is severely reduced resulting in short stature.Objective and hypotheses: This study aimed to repo...

Background: The use of insulin pumps is rapidly spreading within the paediatric T1D community. A few small studies have promoted pump usage, while large registries have shown almost no advantage of this treatment.Objectives: Compare the results of treatment with insulin pump (‘Pump’) with insulin injections (‘Inj’) in a large cohort of children with T1D in field conditions.Patients: We studied 3137 children of t...

Background: Congenital hyperinsulinism (CHI) is a rare disease mostly due to loss-of-function mutations of the ABCC8 or KCNJ11 genes, encoding the two subunits of the KATP channel. Gain-of-function mutations in glutamate dehydrogenase 1, encoded by the GLUD1 gene, are the second most common cause of CHI.Objective and hypotheses: The majority of patients with a GLUD1 CHI respond to diazoxide, but little is kn...

Background: Many children with type 1 diabetes (T1D) are asked to measure blood glucose (BG) 4–6 times a day routinely to adjust insulin dosages. There is no evidence though that such high frequency is beneficial to HbA1C or glycemic profile, although this is often claimed.Objectives: We challenged ‘the more BG measurements, the better control’ dogma for alleviation of T1D burden in child life and evaluation of HbA1C.<p class="abstext"...

Background: Children with type 1 diabetes (T1D) and their parents need personalized i) information about the disease and glucose homeostasis and ii) knowledge and guidelines about diet and insulin therapy.Objectives: To set a complete educational program that allows children with T1D to improve disease management and daily life.Methods: Education modules were written and trained with children and parents at outpatient visits. Each ...

Background: Non functioning pituitary macro adenoma is rare during childhood. Therapeutic options are reduced to surgery and radiotherapy. Proton therapy is a particle therapy that uses a beam of protons to irradiate the tissue with the chief advantage that as a charged particle the dose is deposited over a narrow range and there is minimal exit dose.Objective and hypotheses: Proton therapy is largely used in France for paediatric craniopharyngiomas irra...