hrp0089p2-p046 | Bone, Growth Plate & Mineral Metabolism P2 | ESPE2018

Novel SLC34A1 Mutation in a Girl Infant with Idiopathic Infantile Hypercalcemia

Kang Seokjin , Kim Heung Sik

SLC34A1 encodes renal sodium-phosphate cotransporter 2A. It has been identified as being a part of the etiology of idiopathic infantile hypercalcemia. We report a case of a 1-month old girl, initially hospitalized due to perinatal detection of nephrocalcinosis. Blood tests showed hypercalcemia, hypophosphatemia, hypercalciuria and increased 1,25-(OH)2D3. Renal ultrasound revealed medullary nephrocalcinosis. An abnormality in vitamin-D metabolism was suspected and genetic testi...

hrp0089p2-p083 | Diabetes & Insulin P2 | ESPE2018

Relation between Hypomagnesemia and Increased Level of HbA1c in Patients with Diabetes Mellitus

Kang Seokjin , Kim Heung Sik

Background: Hypomagnesemia is a frequent condition in patients with diabetes mellitus (DM). It could influence metabolic control in patients with DM. Relevant studies concern mainly adults and there are few data from the pediatric population. The aim of the present study was to evaluate magnesium levels and examine their possible association with glycemic control in pediatric patients with diabetes mellitus.Methods: In all, 36 patients with DM (type 1, 3...

hrp0094p2-454 | Thyroid | ESPE2021

Thyroid dysfunction in small for gestational age infants: a need for second screening?

Park So Yun , Kang Seokjin

Recently there has been studies which reported that SGA could be a risk factor for the development of delayed TSH elevation (dTSH) in preterm infant. To our knowledge, very few studies have addressed development of dTSH in SGA infants whose gestational age > 34. We included 76 SGA infants and 83 controls matched on sex and birth weight who showed normal results on the initial thyroid function screening test. On the following test for thyroid function, dTSH prevalence was ...

hrp0089p2-p365 | Sex Differentiation, Gonads and Gynaecology or Sex Endocrinology P2 | ESPE2018

Prospective Investigation of the Influence of Triptorelin Treatment on Body Weight and Body Mass Index of Girls Who Were Diagnosed with Idiopathic Precocious Puberty or Early Puberty

Kang Seokjin , Shim Yejee , Sik Kim Heung

Background: Gonadotropin-releasing hormone agonists (GnRHa) have been widely used to treat patients with central precocious puberty (CPP). Several studies have investigated changes in body composition in patients with CPP following GnRHa treatment. But the results are inconsistent. This study aimed to investigate the influence of GnRHa treatment on the weight and body mass index (BMI) of girls who were diagnosed with idiopathic CPP or early puberty (EP)....

hrp0095p1-592 | Thyroid | ESPE2022

Development of delayed thyrotropin elevation in small-for-gestational-age infants: Is a second screening needed?

Kang Seokjin , Yun Park So , Lee Donghyun , Sik Kim Heung

Purpose: Recent reports indicate that being small for gestational age could be a risk factor for delayed thyroid stimulating hormone (TSH) elevation (dTSH) in preterm infants. Very few studies have investigated the development of delayed thyroid stimulating hormone elevation in small-for-gestational-age late-preterm infants with a gestational age of 34–36 weeks.Methods: We retrospectively included 70 small-for-gest...

hrp0095p2-106 | Fat, Metabolism and Obesity | ESPE2022

Identification of a novel point mutation in APOB gene in a patient with hypobetalipoproteinemia

Yun Park So , Sik Kim Heung , Lee Donghyun , Kang Seokjin

Familial hypobetalipoproteinemia (FHBL) is an autosomal codominantly inherited disorder of lipid metabolism characterized by <5th percentile plasma levels of LDL cholesterol or total apolipoprotein B (apoB). LDL cholesterol level is usually between 20-50 mg/dL. FHBL results from mutations in APOB, PCSK9 gene. Patients with homozygous APOB-related familial hypobetalipoproteinemia (APOB-FHBL) may have symptoms of fat malabsorption, steatorrhea, diarrhea, failure to thrive, de...

hrp0095p2-286 | Thyroid | ESPE2022

A Case of Sjogren's Syndrome with systemic involvement combined with exacerbated hyperthyroidism improved after glucocorticoid treatment

Lee Donghyun , Sik Kim Heung , Yun Park So , Kang Seokjin

Background: Sjogren’s syndrome is a systemic autoimmune disease, and it is rare in pediatric population. Primary symptoms are dry mouth and dry eyes. However, it may present with systemic manifestations, involving lungs, liver, kidneys, vasculature, and blood. We report a case of Sjogren's syndrome with systemic involvement in a child with Graves' disease.Case report: A 9-year-old 11-month-old girl presen...

hrp0095p2-296 | Thyroid | ESPE2022

Factors related to permanent congenital hypothyroidism

Sik Kim Heung , Yun Park So , Lee Donghyun , Kang Seokjin

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...

hrp0095p2-183 | Growth and Syndromes | ESPE2022

First Korean case of a novel ZC4H2 mutation in Wieacker-Wolff syndrome with recurrent hypoglycemia

Lee Gahyun , Kim Heung , Yun Park So , Lee Donghyun , Kang Seokjin

Wieacker-Wolff syndrome, first described in 1985, is a rare congenital syndrome caused by ZC4H2 mutation reported in 9 family and 6 sporadic cases to date. It is an X-linked recessive disorder characterized by congenital joint contractures, mental retardation, progressive neurologic muscular atrophy, scoliosis, and hypoglycemia. A nine-year-old boy with brain atrophy, mental retardation, scoliosis, developmental dysplasia of the hip, convulsions, and exotropia presented to our...