ESPE Abstracts

Background: Chimerism is the phenomenon of two or more genetically distinct cell lines (originating from different zygotes) in the same individual. In situations when the sex of the fertilised eggs is disparate, it can lead to intersex phenotypes.Objective and hypotheses: We report a case of ovotesticular disorder of sexual development with chimerism resulting from a twin pregnancy (not involving assisted reproductive technologies).<p class="abstext"...

Background: Congenital hypothyroidism (CH) is an inborn disease with an incidence rate of 1 case per 3,600 newborns of which 15-20% cases are associated with thyroid dyshormonogenesis. The TPO gene encodes thyroid peroxidase. Disease associated with this gene is usually transmitted in an autosomal recessive mode. Hypothyroidism-associated TPO variants are usually biallelic, limited evidence for cases in patients with heterozygous variants exists.Method...

Background: Antithyroid drugs (ATD) are recommended as the initial treatment in Graves disease in childhood and adolescence. Identification of predictive factors might lead to improve patient management by facilitating the identification of patients requiring long-term ATD or early alternative therapy.Objective and hypotheses: To assess the prevalence of signs and symptoms of hyperthyroidism in childhood and adolescence, to evaluate the rates of adverse ...

Background: The PAX8 gene (Paired box gene 8) is located on the long arm of chromosome 2 (2q12–q14), contains 12 exons and encodes a similarly named PAX8 protein. This protein is a transcription factor which in the thyroid gland is essential for the follicular cells formation and takes part in the expression of the thyroid-specific genes (TG, TPO, and SLC5A5). Variants in the gene have been previously associated with autosomal dominant thyroid dysgenesis...

Background: Overweight (OW) and obesity in paediatric population has been shown to be associated with an increase in prevalence of insulin resistance and type 2 diabetes (T2D) in youth.Objective and hypotheses: The aim of this study was to assess the efficiency and safety of metformin use in combination with lifestyle changes or alone for weight management in OW and obese (OB) children and adolescents.Methods: Study included 145 10...

Background: Children and adolescents with chronic conditions are at increased risk of secondary osteoporosis. In adult patients, long-term anticoagulation (LTA) including Vitamin K antagonist (VKA) treatment is associated with lower bone mineral density and hip fractures. In children and adolsescent, risk factors for impaired skeletal health and the role of LTA on bone metabolism during the vulnerable phase of linear bone growth remain poorly defined.<p cl...

Background: X-linked hypophosphatemia (XLH) is a rare genetic disorder of phosphate metabolism caused by mutations in the PHEX gene. XLH patients exhibit short stature and skeletal deformities, which are caused by defective bone mineralization site leading to increased porosity and decreased matrix stiffness. Bone mineral density measurements have been shown to be insensitive to the cumulative bone alterations. The velocity of the first arriving signal (vFAS) ...

Introduction: Female hypospadias (FH) is one of disorders of sex development signs (DSD). Short and wide urethra that opens into the vagina predisposes to occurrence of recurrent infection of urinary tract, vaginal voiding and postoperative narrowing of artificial vaginal introitus (AVI).Aim: Improve the results of correction FH with stenosis AVI using reintroitoplasty separating the urinary and genital tracts in patients with DSD....

Background: Surgical correction of the external genitalia of girls with incomplete sexual development remains an urgent problem reconstructive urology. It is connected with a relative rare pathology, the need to achieve a good cosmetic and functional result.Objective and hypotheses: In this paper, we present our approach and experience in the surgical treatment of girls born with congenital malformations of sexual organs.Method: Be...

Introduction: Mayer-Rokitansky-Kuster-Hauser Syndrome (MRKH) is a congenital disorder characterized by agenesis or aplasia of the uterus and upper portion of the vagina in females with a normal karyotype (46,XX). Its incidence is approximately 1 in 4,000 to 5,000 live female births. The etiology of MRKH syndrome is highly complex and remains unclear, although genetics is believed to play a significant role in its pathogenesis.Cas...