ESPE Abstracts

Background: Congenital adrenal hyperplasia (CAH) is the most common form of primary adrenal insufficiency in children. 21-hydroxylase enzyme deficiency (21-OHD) occurs in 90–95% of all cases of CAH. Despite it being a treatable condition, if unrecognized, CAH may present with life-threatening cardiovascular collapse. Mortality in the first years is reported to be higher than in the general population. Neonatal screening for CAH is effective in detecting the salt-wasting f...

Objective: Congenital isolated thyrotropin (TSH) deficiency is a rare condition due to autosomal recessive defects in TSHβ, TBL1X, IGSF1, TRHR genes. There are a few patients described with TSHβ mutations to date. These patients display the typical manifestations of severe untreated congenital hypothyroidism. Most patients are unrecognized, even in newborns screening settings due to unelevated TSH levels, which results in severe growth fail...

Background: Hyperinsulinemic hypoglycemia (HH) is the most common cause of severe, persistent neonatal hypoglycemia. Treatment of diffuse forms that is unresponsive to diazoxide and octreotide is near total pancreatectomy.Objective: To describe the clinical characterization of a newborn with congenital HH due to a diffuse pancreas lesion and unresponsive to diaxoside.Case report: Preterm term male of 33 weeks born to non-consanguin...

Background: Recently congenital hypothyroidism (CH) is increased,particularly mild forms. Current guidelines recommend initial levothyroxine (LT4) dose of 10–15 mcg/kg per day as soon as possible, if diagnosis is confirmed by serum test, even if FT4 concentration is normal and venous TSH concentration is >20 microUI/ml.Objective and hypotheses: The aim of our study was to evaluate the initial LT4 dose in newborn with congenital hypothyroidism, n...

Background: Intrauterine growth influences the risk of childhood obesity and its associated metabolic derangement.Objective and hypotheses: To investigate the effect of intrauterine growth (as shown by newborn anthropometry) on physical and metabolic features in obese children and adolescents.Method: A retrospective study of 1049 obese children and adolescents (46.8% females/53.2% males; age: 10.31±3.23 years; BMI: +4.00±...

Background and aims. In several European countries, the incidence of primary congenital hypothyroidism (PCH) seems to increase in the last decade, especially in countries that have lowered the newborn screening TSH cutoff. In Flanders, two centers manage since 2012 the newborn screening for PCH and these maintained the same TSH assay (Delphia, Perkin Elmer) and cutoff (15 mU/l). We studied the current incidence and etiology of PCH and initiation of thyroxine treatment in Fland...

Introduction: 2020 ESPE guidelines recommend early reevaluation in primary congenital hypothyroidism (PCH) with thyroid in situ (TIS) and with levothyroxine dose lower than 3 mg/kg/day.Materials and Methods: Our Congenital Hypothyroidism screening program determine TSH and TT4 in dried blood spot (DBS) at 48 hours of life. A second DBS (DBS2) is indicated when the first is positive. Multicenter retrospective study (05/2016-05/2020; 105...

Introduction: In diabetic pregnancies, data about the interaction between maternal, placental, and fetal IGF1/IGFBP in relation to newborn size is not clear,Aim: To review research papers published in Pubmed, Google scholar, Research gate, and Scopus in the past 20 years on the relation between placental IGF1/IGFBP-1 and fetal/infantile/childhood growth in pregnancies associated with maternal diabetes.<p class="abste...

Introduction: Primary growth hormone (GH) insensitivity is an autosomal recessive pathology caused by molecular defects in the GH receptor gene. In Chile there are 3 reported patients.Clinical case: Female patient, newborn of 37 weeks, due to delivery, adequate for gestational age. Son of non-consanguineous parents. Hospitalized at 12 hours of life in the neonatology unit due to persistent tremors, jaundice and septic sy...

Aldosterone synthase deficiency (ASD) is a rare autosomal recessive disease caused by inactivating mutation in the CYP11B2 gene, usually presenting with severe salt-wasting in infancy or stress-induced hyperkalaemia and postural hypotension in adulthood. ASD is unable to be detected by Neonatal screening of 17-hydroxyprogesterone, hence patients would not be diagnosed until they suffer from salt-wasting crisis. Due to this potentially life-threatening risk, early detection and...