hrp0094p2-461 | Thyroid | ESPE2021

Early reassessment in congenital hypothyroidism

Grau Gema , Bertholt María Laura , Chueca María , Artola Elena , Fernández María Concepción , Sarasua Ainhoa , Rodríguez Amaia , Vela Amaia , Berrade Sara , Naranjo Cristina , Puges Laura , Diez Ignacio , Espada Mercedes , Ascunce Nieves , Porras Begoña , Rica Itxaso

Introduction: 2020 ESPE guidelines recommend early reevaluation in primary congenital hypothyroidism (PCH) with thyroid in situ (TIS) and with levothyroxine dose lower than 3 mg/kg/day.Materials and Methods: Our Congenital Hypothyroidism screening program determine TSH and TT4 in dried blood spot (DBS) at 48 hours of life. A second DBS (DBS2) is indicated when the first is positive. Multicenter retrospective study (05/2016-05/2020; 105...

hrp0094p2-480 | Thyroid | ESPE2021

TBG deficiency and Central Congenital Hypothyroidism (CCH): Our experience in neonatal screening with TSH and T4

Chueca Maria J. , Grau Gema , Bertholt Laura , Artola Elena , Fernández Concepción , Sarasua Ainhoa , Rodriguez Amaia , Vela Amaia , Belza Amaia , Berrade Sara , Dura Teodoro , Alonso Pablo , Puges Laura , Diez Ignacio , Espada Mercedes , Ederra Maria , Ascunce Nieves , Porras Begoña , Rica Itxaso

Objective: Analyze CCH detection program results from 3 Autonomous Communities: TSH and total T4 (TT4) in dried blood spot (DBS) at initial screening (48 hours of life) and at retesting. Describe the characteristics of neonates with screening compatible with CCH. Consider whether TBG deficiency (TBGD) is an added difficulty in said study.Materials and Methods: Retrospective study (May 2016-May 2020) of all neonates ≥33 weeks and/or ≥1500 gr...