ESPE Abstracts

Introduction: An increase in the incidence of congenital hypothyroidism (CH) with eutopic gland has been reported worldwide due to neonatal screening programs. Several studies have recently reported factors useful for predicting permanent CH (P-CH).Objectives: To determine predictive factors that could distinguish between permanent and transient CH (T-CH) in patients with eutopic thyroid gland and normal neonatal screeni...

Objectives: Congenital hypothyroidism (CH) is the most common neonatal endocrine disorder in infancy. The aim of this study was to screen for reported gene mutations among CH patients in our hospital and to illustrate a genetic mutation spectrum of CH in China.Methods: We designed a gene panel consisting of more than 20 relevant genes including TSHR and DUOX2. Blood samples were collected from 60 CH patients and their parents in Children’s Hospital ...

Background: Thyroid hormones are essential in the regulation of foetal and post-natal neurodevelopment. Despite early diagnosis and treatment of congenital hypothyroidism (CH) difficulties with language, hearing, memory and motor function persist for some children. However, comprehensive data about hearing, language and communication function in children with CH are not widely available.Objective and hypotheses: To evaluate hearing, language and communic...

Background: Screening for congenital hypothyroidism (CH) in the Russian Federation started in 1994. A survey was conducted in 1994 on the basis of 32 laboratories, and since 2007 newborn screening is being carried out in 79 laboratories of 83 regions of the Russian Federation.Objective and hypotheses: To study the prevalence of CH in Russia and in different regions of the Russian Federation.Method: Official statistics on CH screeni...

Background: Since the initiation of neonatal screening-programs for congenital hypothyroidism (CH) in the 1970’s, an increase in the incidence of CH has been observed. This change has been attributed to the gradual use of lower TSH cut-offs that lead to the detection of milder cases of CH. Based on currently used screening cut-offs, CH occurs in approximately 1:2 000 to 1:4 000 newborns, varying by geographic location and ethnicity. A female predominance, approaching a 2:...

Background: Only few studies have focused on neurosensory hearing function of patients with congenital hypothyroidism (CH) identified by CH screening programs and treated early and, therefore, this issue remains still controversial.Objective and hypotheses: The aim of this study was to ascertain whether an early and adequate replacement treatment may be able to prevent sensorineural hearing loss in 32 screened children with CH and no associated risk fact...

Background: Congenital hypothyroidism (CH) is one of the preventable causes of intellectual disability. L-thyroxine is a drug of choice for CH treatment to preserve normal brain development and function.Objective: to evaluate intellectual outcomes at preschool age in early treated CH.Materials and Methods: This retrospective chart review was conducted on 27 treated children with CH...

Purpose: The purpose of this study was to retrospectively analyze the clinical, laboratory, imaging findings (sonography and Tc99m-pertechnetate scanning) in patient with congenital hypothyroidism (CH) who completed 3 years of LT4 medication.Method: 86 patients with congenital hypothyroidism were retrospectively reviewed. Medical history, laboratory, radiologic finding at the time of CH diagnosis were evaluated. Correlat...

Background and Objective: Congenital hypothyroidism (CH) is mostly detected with neonatal newborn screening (NBS). CH is the most common neonatal endocrine disorder with an incidence of 1:2,000-1:4,000. However the molecular etiology is sill poorly understood, considering pathogenic variations in candidate genes have been found only in 10-20 % of CH. We performed mutations screening of causative genes through a systematic Next Generation Sequencing (NGS) a...

Background: Since the initiation of neonatal screening programs for Congenital Hypothyroidism (CH) in the 1970’s, a gradual decrease of TSH cut-off limits has been observed worldwide. Nevertheless, lack of universal consensus has led to wide variation of cut-off limits and LT4 therapy criteria among screening programs, even within the same country. The Greek neonatal CH screening program is carried out by a single laboratory that uses one of the lowest cut-off limits worl...