hrp0082p2-d1-585 | Thyroid | ESPE2014

Subclinical Hypothyroidism is Associated with Low IGF1 Levels and Decreased Growth Velocity

Bellini Helena , Maciel Lea , Custodio Rodrigo , Milani Soraia , Paula Mariana , Antonini Sonir , Liberatore Raphael , Martinelli Carlos

Background: Subclinical hypothyroidism (SH) is defined as normal tyrosine levels in the presence of TSH concentrations between 5 and 10 mU/ml. The impact of SH on IGF system and growth of infants remains unknown.Objective and hypotheses: To evaluate IGF1, IGFBP3 levels and growth velocity (GV) of infants with SH.Method: 98 children up to 36 months of age, recalled due to a TSH >5 mU/ml in the neonatal screening test, were divid...

hrp0084p2-400 | GH & IGF | ESPE2015

Regulation of IGF1R mRNA Expression by GnRH Agonist may be Involved in the Decrease of Height Velocity During Central Precocious Puberty Therapy

De Paula Mariana Sarti , Ricco Rafaela , Custodio Rodrigo , Milani Soraya , Atique Patricia , Moreira Ayrton , Antonini Sonir , Liberatorejr Raphael , Martinelli jr Carlos

Background: Growth spurt is a major event in central precocious puberty (CPP). GnRH analogue (GnRHa) therapy inhibits gonadal axis and decreases height velocity. However, serum IGF1 and IGFBP-3 remain high as before therapy. Reports on IGF type 1 receptor (IGF1R) in CPP are yet unavailable.Aim: To study IGF1R mRNA expression in girls with CPP before and during GnRHa therapy.Methods: 34 girls with CPP were studied. Sixteen of them (...

hrp0098p1-278 | Pituitary, Neuroendocrinology and Puberty 4 | ESPE2024

Water deprivation test in children: challenging but still necessary to diagnose central diabetes insipidus

Donaire Sousa Carolina , Gon Perez Nardoque Beatriz , Teresa Alves Sarti de Paula Mariana , Casale Aragon Davi , Custodio Moreira Ayrton , Conde Lamparelli Elias Paula , Roberto Rauber Antonini Sonir

Introduction: It is challenging to differentiate central diabetes insipidus (CDI) from Nephrogenic Diabetes Insipidus (NDI) or Primary Polydipsia (PP) in patients with polyuria-polydipsia syndrome, especially in the pediatric population. Despite its limited accuracy and low tolerance in children, the water deprivation test (WDT) is still used as a reference.Objectives: To review indications and outcomes of pediatric pati...

hrp0098p1-303 | Late Breaking 1 | ESPE2024

Treating Arginine Vasopressin Deficiency in Infants is a Challenging Condition: A 20-year Single-Center Study

Gon Perez Nardoque Beatriz , Donaire Sousa Carolina , Casale Aragon Davi , Condé Lamparelli Elias Paula , Teresa Alves Sarti de Paula Mariana , Roberto Rauber Antonini Sonir

Introduction: The management and follow-up of paediatric patients with arginine vasopressin deficiency (AVP-D) is challenging, particularly in infants (0-2 years). Few studies have examined the particularities of AVP-D in this age group.Objectives: To describe clinical, laboratory, and demographic characteristics of AVP-D in infants at diagnosis and to describe the follow-up during the first years of life. To ascertain c...