ESPE Abstracts

Background: ‘Dead in Bed syndrome’ mechanism in childhood diabetes remains unknown. The hypothesis is that a nocturnal hypoglycaemia could lead to arrhythmias related to abnormal ventricular repolarisation.Objective and hypotheses: To look for a relationship between spontaneous fluctuations of nocturnal glycaemia, ventricular repolarization and heart rate variability (HRV) in prepubertal children with type 1 diabetes.Meth...

Background: Pubertal virilization in a 46,XY DSD patient is generally due to partial androgen insensitivity, 5-alpha-reductase deficiency, or 17-ketoreductase deficiency. Recently, reports have identified virilization signs associated with NR5A1/SF-1 gene mutations.Cases presentation and method: We present two unrelated cases of pubertal virilization due to NR5A1/SF-1 gene mutation. Both were suspected to be primarily affected by 5-alph...

Background: In recent years, traumatic brain injury (TBI) has been identified as a significant cause of pituitary dysfunction in children. Paediatric prospective studies are rare especially for mild TBI.Objective and hypotheses: The aim of this present study was to evaluate the frequency of hypopituitarism after mild, moderate and severe TBI in hospitalized children, and determining factors of this deficiency.Method: A prospective ...

Background: Newborn screening for congenital adrenal hyperplasia (CAH) has been shown to reduce time to diagnosis, and thus morbidity and mortality. Internationally, newborn screening for CAH continues to expand and screening techniques have improved, with the implementation of second-tier testing and use of gestational age stratification. The aim of this study was to examine the incidence and spectrum of early clinical presentations of CAH in an unscreened po...

Background: Pseudohypoparathyroidism type 1A (PHP1A) and PseudoPHP are caused respectively by maternal and paternal mutations involving those GNAS exons that encode the alpha-subunit of the stimulatory G protein (Gsα). Common to different forms of PHP1B is a loss-of-methylation (LOM) at one or several maternal GNAS exons, which likely reduces Gsα expression in certain tissues. In most autosomal dominant PHP1B variants (AD-PHP1B), LOM is restricted t...

Introduction: The leptin-melanocortin pathway plays a key-role in weight control. Pathogenic variants in the five major genes (LEP, LEPR, POMC, PCSK1, MC4R) are associated with early severe obesity. However, the specific associated phenotype with presence of mono-allelic variants and especially BMI trajectories are not well known.Objective: In order to identify specific profiles, we compared BMI trajectories during the f...

Background: CPP is commonly treated with triptorelin, a gonadotropin-releasing hormone (GnRH) analogue. It is available as 1-month and 3-month prolonged-release (PR) formulations, but only the former is approved for CPP in China. Overseas studies have proved the efficacy and safety of triptorelin 3-month PR formulation; this study evaluated efficacy and safety in Chinese children with CPP.Methods: In this 12-month, open-...

Background: Twenty-three national healthcare networks for rare diseases were identified in 2014 as part of the French scheme on rare diseases. The rare endocrine disease national healthcare network FIRENDO (www.firendo.fr) includes six centers of reference with complementary fields of expertise certified between 2005 and 2006, 30 centers of competence covering all French regions, 18 research and 37 diagnostic laboratories, 5 national learned...

Background: More than half of newborns with central congenital hypothyroidism (C-CH) have moderate-to-severe hypothyroidism in the neonatal phase, requiring immediate thyroxine therapy to prevent brain damage. The Israeli newborn screening for CH is based on the measurement of total T4 (TT4) followed by TSH measurement. However, when TSH is within the normal range the physicians are not informed of the results and therefore the diagnosis of C-CH and initiation...

Background: Pseudohypoparathyroidism 1A, newly classified as inactivating PTH/PTHrP signaling disorder type 2 (iPPSD2), is defined by resistance to parathyroid hormone, short stature and early-onset obesity. Short stature is caused by skeletal dysplasia and additionally, in some cases, also by the coexistence of growth hormone deficiency, as other hormonal resistances might be present (e.g. thyroid-stimulating hormone, growth hormone releasing hormone (GHRH), ...