ESPE Abstracts

We present the case of a 11-years-old girl who came to our attention for a first critical episode lasting a few minutes, with spontaneous resolution, described as a generalized clonic tonic crisis, which occurred in full well-being. An electroencephalogram (EEG) was performed which showed focal epileptiform anomalies in the right temporal center that spread evoked by hyperpnea and eye closure and an EEG after sleep deprivation that showed an accentuation of the anomalies in ph...

Introduction: X-linked hypophosphataemic rickets (XLH), due to mutations in the PHEX (Phosphate-regulating Endopeptidase homolog; X-linked) gene, causes reduced bone and dentin mineralisation and decreased renal phosphate reabsorption. Mosaic PHEX mutations are reported only in a few case reports.We report three male cases, with mosaic pathogenic PHEX variants, showing importance of considering this in the diagnosis of XLH.Case 1 pre...

Background: Congenital hyperinsulinism (CHI) is the most common cause of the persistent hypoglycemia in children and occurs in approximately 1 in 50,000 live births. Genetic testing provides information on the pancreatic histological subtype (i.e. focal vs diffuse) and determines further management and prognosis of the patients. At least 11 known monogenic forms and several syndromes have been associated with CHI. Mutations in ABCC8 and KCNJ11 genes coding pot...

Introduction: Turner syndrome (TS) is a rare X-chromosomal disease, which affects one in 2500-3000 female newborns. TS is associated with a distinct cardiovascular morbidity and mortality. Arterial hypertension is present in up to 50% of young TS women and closely related to the onset of aortic dilatation and dissection. The effective management of arterial hypertension can be considered as crucial to improve overall cardiovascular outcome of TS women. In the ...

Aims/hypothesis: The Wolfram syndrome, also known as the DIDMOAD syndrome (Diabetes Insipidus, early-onset Diabetes Mellitus, progressive Optic Atrophy, and Deafness), is mostly associated with recessive mutations in the WFS1 gene. However, dominant mutations in the WFS1 gene were described as causing less severe Wolfram-like syndrome, or isolated optic atrophy, or low-frequency sensorineural hearing loss.Method...

KBG syndrome (OMIM 148050) is a an emerging autosomal dominant disorder caused by heterozygous mutations in the ANKRD11 gene or deletions of 16q24.3, characterized by developmental delay, short stature, dysmorphic facial features and skeletal anomalies. Patients and methods: We report 22 patients with dysmorphic features, learning disabilities, behavior problems and macrodontia, where a clinical diagnosis of KBG was suspected. An ANKRD11 defect was confirmed in 12 patients. In...

Background: Patients with chromosome 2 pericentromeric duplication are rarely reported in literature.Objective and hypotheses: To describe a young girl with a congenital malformations syndrome, hypogonadotropic hypogonadism and impaired bone quality associated with a chromosome 2 pericentromeric duplication.Results: The proposita was born at 37th weeks of gestation from a twin pregnancy with a cesarean delivery presenting low birth...

Background: Several studies have investigated the effects of GH replacement therapy (GHRT) on thyroid function in children with GH deficiency (GHD) leading to contrasting results. Indeed, GHRT has been reported to affect the peripheral metabolism of thyroid hormones, to alter TSH secretion by pituitary and to unmask secondary hypothyroidism.Objective and hypotheses: To evaluate long-term effects of GHRT on thyroid function in a large cohort of GHD childr...

Background: Microdeletions of 14q22q23 have been associated with eye abnormalities. Other symptoms in deletion carriers are less well recognized.Objective and hypotheses: We focused on growth characteristics and response to GH treatment in two unrelated children with 14q22q23 deletions.Method: Array comparative genomic hybridisation (aCGH).Results: Both patients displayed bilateral anophthalmia. Their brain M...

Background: Congenital hyperinsulinism (CHI) is the most common cause of persistent hypoglycaemia in the neonatal period, characterized by unregulated insulin secretion by pancreatic β-cells. In addition to medical therapy, frequent feeding to prevent hypoglycaemia is one of the most important aspects in the management of CHI.Objective and hypotheses: To identify the number of patients with CHI who have associated feeding difficulties and determine ...