hrp0097p1-568 | Sex Differentiation, Gonads and Gynaecology, and Sex Endocrinology | ESPE2023

Impact of unilateral ovariectomy on ovarian function and pubertal development in girls with Turner syndrome

van der Coelen Sanne , Nadesapillai Sapthami , Peek Ronald , Braat Didi , Fleischer Kathrin , van der Velden Janielle

Background: A reduced reproductive lifespan is one of the most significant implications for girls with Turner syndrome (TS) and is due to an accelerated loss of ovarian insufficiency. Lately, there has been a surge in scientific research aimed at whether ovarian tissue cryopreservation (OTC) is a viable option for fertility preservation in girls with TS. This required a unilateral ovariectomy for girls with TS who may already have a poor ovarian reserve.<p...

hrp0095p2-158 | Growth and Syndromes | ESPE2022

Global recall of a growth hormone jet delivered device: experiences with children forced to switch from a needle free system to a growth hormone device with needle.

P. van Eck Judith , S. Renes Judith , J.C. Sas Theo , L.T. van den Akker Erica , C.M. van der Kaay Daniëlle

Introduction: Growth hormone (GH) treatment is essential for growth in children with GH deficiency. Also short children born small for gestational age (SGA), and children with syndromes like Turner Syndrome (TS), Noonan Syndrome (NS) and Silver Russel Syndrome (SRS) can benefit from GH treatment. For children with needle anxiety GH delivered by a jet device can be a solution for the daily subcutaneous treatment for many years. In 2021, a global recall of the o...

hrp0084p2-366 | Fat | ESPE2015

Homozygous Mutation in FBN1 Gene In-Patient with Prader–Willi Syndrome: Variant Marfan Syndrome?

van den Boom-Rijk Yvonne , Kempers Marlies , van der Sanden Ria Nijhuis , van Alfen-van der Velden Janielle

Background: Prader–Willi syndrome (PWS) is caused by absence of expression of imprinted genes on the paternal chromosome 15 (15q11.2–q13) due to a paternal deletion, maternal uniparental disomy 15 and rarely an imprinting defect. The clinical signs of PWS are hypotonia, muscle weakness, excessive eating, morbid obesity, delayed global development, hypogonadism, and short stature. Marfan syndrome is caused by mutations in the FBN1 gene, located on chromosome ...

hrp0084p2-196 | Adrenals | ESPE2015

The Role of the Nurse Practitioner in Optimising Care for Children with Congenital Adrenal Hyperplasia

van de Crommert Viviane , van Alfen-van der Velden Janielle , van der Linde Annelieke , Noordam Kees , Claahsen-van der Grinten Hedi

Background: Congenital Adrenal Hyperplasia (CAH) is a rare group of congenital adrenal diseases with an estimated prevalence of about ten newly diagnosed patients in the Netherlands per year. Morbidity and mortality improved significantly in the last 20 years mainly due to improvement of multidisciplinary care and education of patients and parents. In the last years the role of the nurse practitioner (NP) as case manager in the care and follow up of patients with chronic disea...

hrp0089p2-p339 | Sex Differentiation, Gonads and Gynaecology or Sex Endocrinology P2 | ESPE2018

Results of Exome Sequencing in Disorders of Sex Development

Kempers Marlies , Claahsen Hedi , Alfen Janielle van , Velden van der , Rinne Tuula

Disorders or Differences of sex development (DSD) are a heterogeneous group of congenital conditions, involving variations of chromosomal, gonadal, or anatomical development. Diagnosis is based on clinical, biochemical, imaging and genetic evaluation. In recent years knowledge about genetic causes has increased, mainly due to improved genetic techniques. In this study we investigated the yield of exome sequencing in our patients with DSD. Patients and methods: Genetic i...

hrp0097p1-101 | GH and IGFs | ESPE2023

Withdrawing growth hormone treatment at mid-puberty in idiopathic isolated growth hormone deficiency: baseline characteristics in patient-preference design study

Vliegenthart Joeri , Wit J.M. , Bakker B. , Boot A.M. , de Bruin C. , Finken M.J.J. , van der Heyden J.C. , Houdijk E.C.A.M. , van der Kamp H.J. , van Mil E.G.A.H. , Reedijk A.M.J. , Sas T.C.J. , Schott D.A. , van Setten P. , Straetemans S. , van Tellingen V. , Touwslager R.N.H. , van Trotsenburg A.S.P , Voorhoeve P.G. , van der Kaay D.C.M.

Background: The majority of children diagnosed with idiopathic isolated growth hormone deficiency (IIGHD) show a normal growth hormone (GH) secretion (assessed by GH stimulation tests) when retested at near adult height (NAH). It appears plausible that if normal stimulated GH secretion is observed in mid-puberty, continuing recombinant human GH (rhGH) treatment may only have a minor effect on NAH. The effect on NAH has never been investigated in a prospective ...

hrp0084p2-406 | GH &amp; IGF | ESPE2015

Metabolic Health in Short Children Born Small for Gestational Age Treated with GH and GnRHa: Results of a Randomised, Dose-response Trial

van der Steen M , Lem A J , van der Kaay D C M , Waarde W M Bakker-van , van der Hulst F J P C M , Neijens F S , Noordam C , Odink R J , Oostdijk W , Schroor E J , Sulkers E J , Westerlaken C , Hokken-Koelega A C S

Background: Previously we showed that pubertal children born small for gestational age (SGA) with a poor adult height (AH) expectation can benefit from treatment with GH 1 mg/m2 per day (~0.033 mg/kg per day) in combination with 2 years of GnRH analogue (GnRHa) and even more so with a double GH dose. GnRHa treatment is thought to have negative effects on body composition and blood pressure. Long-term effects and GH-dose effects on metabolic health in children treate...

hrp0084p1-140 | Turner &amp; Puberty | ESPE2015

Impaired Motor Function in Turner Syndrome: What is the Relationship to Performal Intelligence Scores?

Taskin Betul , Verhaak Chris , Essink Marlou , Kempers Marlies , Vinck Anja , Sanden Ria Nijhuis-van der , Velden Janielle van Alfen-van der

Background: Although motor performance is often impaired in patients with Turner syndrome, the exact prevalence of motor problems is unknown. Detailed studies on specific motor profiles are lacking and the exact relationship between performal IQ and motor function is unknown.Aims and objectives: 1. To describe motor performance in our population of children and adolescents with Turner syndrome including the differentiation in specific motor skill domains...

hrp0092rfc12.1 | Growth and Syndromes (to include Turner syndrome) | ESPE2019

Karyotyping of oocytes, granulosa cells and stromal cells in the ovarian tissue from patients with Turner syndrome: a pilot study

Peek Ron , Schleedoorn Myra , Beerendonk Catharina , van der Velden Janielle , Braat Didi , Smeets Dominique , Fleischer Kathrin

Summary Answer: Most primordial/primary oocytes were found to have a 46,XX karyotype. Chromosome patterns of the ovarian cells were different from that observed in other tissues.Background: TS is a chromosomal condition associated with partial or complete absence of one of the two X-chromosomes. Females with TS have a limited reproductive lifespan due to an accelerated loss of germ cells. It has been hypothesized that vi...

hrp0094p1-1 | Adrenal A | ESPE2021

Optimizing the timing of highest hydrocortisone dose in children and adolescents with 21-hydroxylase deficiency

Schroder Mariska A.M. , van Herwaarden Antonius E. , Span Paul N. , Akker Erica L.T. van den , Bocca Gianni , Hannema Sabine E , Kamp Hetty J. van der , Kort Sandra W.K. de , Mooij Christiaan F. , Schott Dina A. , Straetemans Saartje , Tellingen Vera van , Velden Janielle A. van der , Sweep Fred C.G.J , Claahsen-van der Grinten Hedi L. ,

Context: Children with 21-hydroxylase deficiency (21OHD) require chronic glucocorticoid administration to substitute glucocorticoids and suppress adrenocorticotropic hormone-induced hyperandrogenemia. There is still no evidence about the best timing of the highest hydrocortisone (HC) dose. Administration of the highest dose in the morning aims to mimic the physiological rhythm of cortisol, while a high dose late in the evening may inhibit the early-morning inc...