ESPE Abstracts

Background: Congenital hypothyroidism (CH) is divided into two main groups as ‘permanent’ and ‘transient’. Diagnosis of transient hypothyroidism is important to avoid lifelong unnecessary therapy with its possible side effects.Objective and hypotheses: We aimed to determine the rate of transient and permanent congenital hypothyroidism of the newborns referred to our clinic from the neonatal screening program in this study.</st...

Background: 80–85% of cases of congenital hypothyroidism (CH) are shown to be due to thyroid dysgenesis, while 15–20% are due to dyshormonogenesis. At least 12 candidate genes are associated with congenital hypothyroidism (CH), however its molecular basis is defined in fewer than 10% of the patients (ESPE consensus, 2014). Recent studies suggest that using a next generation sequencing (NGS) approach may increase the mutation yield in CH.Objecti...

Background: The aetiology of congenital hypopituitarism (CH) is unknown in the majority of patients. In our cohort of 200 cases, it was possible to establish the genetic cause in only 13 patients (6.5%). Copy number variants (CNVs) have been implicated as the cause of genetic syndromes with previously unknown aetiology.Objective: To study the presence of CNVs and its relevance in patients with CH of unknown cause associated with complex phenotypes.<p...

Background: Recent guidelines recommend levothyroxine (LT4) monotherapy for all infants with congenital hypothyroidism (CH). However, up to one-third of patients have pituitary resistance to thyroid hormone and, to normalize their TSH, require supranormal circulating levels of T4. Liothyronine (T3) has been proposed as a supplemental therapy for such patients, but data demonstrating its use and efficacy are limited.Object...

Background: Mexico is globally ranked as one of the countries with the highest incidence of congenital hypothyroidism. There are few studies that have searched for germinal mutations of candidate genes, such as NKX2-1, in patients with congenital hypothyroidism.Objective and hypotheses: i) To search for NKX2-1 mutations in blood samples of patients with confirmatory diagnosis of congenital hypothyroidism (CH) due to thyroid dysgenesis (...

Hypopituitarism refers to the insufficient secretion of one or more pituitary hormones. If default is present at the time of birth is called congenital hypopituitarism (CH). Causes of this are perinatal pathology and genetic alterations. The clinical presentation is heterogeneous. The diagnosis is made by clinical suspicion supported by hormonal determinations, brain imaging test (MRI) searching of structural defects and genetic study. The development of the pituitary gland is...

Iodine is the most important element in thyroid function. Its deficiency and excess can cause hypothyroidism. Our location has been known as the iodine deficiency area for the last 20 years. In this study, we aimed to investigate thyroid dysfunction and assess its relationship with iodine levels in the neonatal period.Method: One hundred and seventy newborns were included in the study. Infants were selected from patients referred to for ...

Introduction: The ideal TSH filter value (TSHf) in the neonatal screening tests for Congenital hypothyroidism (CH) is worldwide controversial. Local cutoff point of TSHf was 9.0 mIU/L until recently. OBJECTIVE: To evaluate the clinical and laboratory characteristics of newborns with CH (confirmatory serum TSH > 10 mIU/L) after a lower TSH cutoff. METHODS: Cross-sectional study using data from Neonatal Screening Reference Center of State Rio Grande do Sul, ...

Background: Up to 20% of infants referred on newborn congenital hypothyroidism (CH) screening are subsequently shown to have transient TSH elevation rather than permanent CH. Correct identification of such cases is important to avoid prolonged treatment with thyroxine and unnecessary clinic attendance.Objective: To determine the prevalence, trends and profile of infants with transient TSH elevation referred between August 1979 and December 2015 by the Sc...

Background: The outcome of congenital hypothyroidism (CH) has dramatically changed since the start of neonatal screening. However the benefit of this program is not felt in Algeria and other countries where the pathology is still causing irreparable brain damage.Objective and hypotheses: To evaluate age at diagnosis of CH and its impact on the mental development in the absence of new-born screening.Method: Case notes of all patient...