hrp0092p3-258 | Thyroid | ESPE2019

The Challenge to Treat Neonatal Autoimmune Hyperthyroidism in a Small Preterm

Lignitz Sarah , Coors Detlef , Pohlenz Joachim

Background: The prevalence of hyperthyroidism in pregnancy is about 0.2%, mostly due to Graves disease. Neonatal autoimmune hyperthyroidism caused by the transplacental passage of stimulatory thyrotropin receptor antibodies (TRAB) of the IgG class is a rare disorder. It occurs in only 2% of the neonates of mothers with Graves disease, is transient and associated with high morbidity and mortality rates up to 25%. Antithyroid drugs are the treatment ...

hrp0082p1-d1-238 | Thyroid | ESPE2014

Homozygous Deletion of The TSHβ Subunit Gene Causes Congenital Secondary Hypothyroidism in a Consanguineous Family of Turkish Descent

Hermanns Pia , Klotz Cherize , Couch Robert , Leonard Norma , Pohlenz Joachim

Background: A 6-week-old male was admitted for investigation of prolonged jaundice. The pregnancy was unremarkable with a normal at term delivery. The neonatal screening was unremarkable. The boy was born to consanguineous parents of Turkish descent.Objective and hypotheses: At presentation serum levels of thyrotropin, T4 and T3 were low and prolactin slightly elevated. Venous TSH was undetectable low. Central hypothyroidism was dia...

hrp0084p2-558 | Thyroid | ESPE2015

Objective vs Subjective Measurement of Thyroid Volume by Ultrasound in Infants Referred with TSH Elevation on Newborn Screening

Mansour Chourouk , Ouarezki Yasmine , Jones Jeremy , Attaie Morag , Stenhouse Emily , Pohlenz Joachim , Donaldson Malcolm

Background: Establishing thyroid size as large, normal or small in newborn infants with TSH elevation and in situ thyroid is important for diagnosis and informing molecular genetic studies.Objective and hypotheses: To compare intra-observer variation in the objective (Ox) measurement of thyroid volume (vol) by ultrasound (US); and the correlation between subjective (Sx) and Ox assessment.Method: Joint blinded retrospective...

hrp0092fc5.5 | Thyroid | ESPE2019

Identification of TRPC4AP as a Novel Candidate Gene Causing Thyroid Dysgenesis

Eberle Birgit , Choukair Daniela , Vick Philipp , Hermanns Pia , Weiß Birgit , Paramasivam Nagarajan , Schlesner Matthias , Wiemann Stefan , Roeth Ralph , Klutmann Carina , Hoffmann Georg F. , Pohlenz Joachim , Rappold Gudrun A. , Bettendorf Markus

Background: Congenital hypothyroidism (CH) is the most common endocrine disorder in neonates and is predominantly caused by developmental abnormalities known as thyroid dysgenesis (TD). Several transcription factors have been described in its aetiology, but defects in the known genes only account for a small proportion of cases.Methods: To identify novel genes involved in TD, we performed exome sequencing in 7 unrelated ...