ESPE Abstracts

Background: For adult patients who do not meet indications to surgery, the calcimimetic cinacalcet is approved for primary hyperparathyroidism (HPT), decreasing calcium and parathyroid hormone (PTH) levels. This drug is largely used in adults, but may be a challenge in daily practice in children, because of the risk of hypocalcemia, increased QT interval and drug interactions. A few pediatric cases have highlighted its potential interest in children with HPT; ...

Background and Aim: Adult height predictions by the manual Bayley and Pinneau (BP) method in tall boys have shown large confidence intervals up to a bone age of 15 years. The adult height (AH) BoneXpert prediction method, which is based on an automated bone age reading, has not been evaluated in tall adolescents. We therefore compared the bias between the manual BP method and the BoneXpert (BE) method in tall male Flemish adolescents.Pat...

Introduction: Premature pubarche is the most frequent diagnosis when children present moderate pubic hair development, but other diagnosis must be ruled out. We report the case of a child with premature pubarche with hormonal results in the physiological range, corresponding to an adrenal tumor.Observation: A girl aged 6.8 years consulted for precocious pubertal development (pubic hair stage 3, breast stage 2), with moderate acne. There was no virilizati...

Introduction: XLH is caused by mutations in PHEX leading to increased FGF23 levels, phosphate wasting, and impaired endogenous calcitriol synthesis. Affected patients present with rickets and diminished growth velocity during childhood, and osteomalacia and short stature in adulthood. Adult height is linked with health within and across generations suggesting that adult height may be a potential tool for monitoring health conditions, e.g., XLH.<p ...

Background: X-linked hypophosphatemia (XLH) is caused by mutations in PHEX which increases serum Fibroblast Growth Factor 23 (FGF23) concentrations leading to phosphate wasting and osteomalacia. Burosumab is a recombinant fully human IgG1 monoclonal antibody which selectively inhibits the activity of FGF23. In clinical trials burosumab demonstrated significant clinical improvements in radiological rickets severity, growth, and biochemistry among XLH c...

Background: XLH is a rare, genetic, life-long disease caused by PHEX pathogenic variants. It is associated with progressive accumulation of musculoskeletal features and symptoms that evolve across the patient’s lifetime if untreated. Although the disease is well characterised in children and adults, there are limited data describing the health outcomes and experiences of adolescents, particularly at end of skeletal growth (EOSG), a crucial phase during t...

Background: In bilateral anorchia or vanishing testes syndrome, testicular function is normal during the embryonic period, as shown by the absence of Müllerian remnants and of hypospadias. Although normally differentiated, the penis may be small due to decreased testosterone secretion during the fetal period. In a normally virilised boy with non-palpable testes, with or without micropenis, the diagnosis is established by undetectable plasma anti-Müllerian hormone (AM...

Background: Management of adrenal insufficiency(AI) during sick-day episodes require adjustment of oral glucocorticoid therapy or administration of intramuscular injection to prevent adrenal crisis. Education of families of a young person with AI on management during sick day episode is therefore critical.Aim: To critically appraise patient education of sick-day episode management of adrenal insufficiency by conducting</...

Introduction: Pediatric obesity is a global public health problem that is associated with severe cardiometabolic consequences. Weight management interventions focusing on lifestyles have shown some promising results, but attrition rates are often high and reasons for dropout are poorly understood.Objectives: We aimed toestimate the prevalence, and identify the determinants of attrition among pediatric participants in the first year of a 2-year lifestyle ...

Background: Type 1 diabetes (T1D) is a risk factor for cardiovascular disease (CVD) and alterations may manifest as early as in adolescence. Increased physical activity and reduced sedentary behavior reduce the risk of CVD development in general adult populations, but knowledge is limited on their associations with early markers of CVD risk in pediatric T1D.Objective: Estimate associations of physical activity and sedent...