Hypothyroxinemia during pregnancy: the effect on neurodevelopment in the child |
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Authors: | Marta Suárez-Rodríguez Cristina Azcona-San Julián Valentín Alzina de Aguilar |
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Institution: | 1. AGC Pediatría, Hospital Universitario Central de Asturias, Spain;2. Departamento Pediatría, Clínica Universidad de Navarra, Spain |
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Abstract: | ContextExperimental studies have shown that maternal hypothyroxinemia during early pregnancy is associated with poor neurodevelopment in affected offspring.ObjectiveThe aim of this study was to assess the impact of maternal serum free T4 on psychomotor development of offspring.Materials and methodsThe study involved 147 women in the third trimester (week 37) of pregnancy. TSH and free T4 serum levels were measured at 37 week gestation. The children were evaluated between 38 and 60 months of age by the McCarthy Scales of Children's Abilities.Results54.4% of the women had a free T4 below the threshold of hypothyroxinemia. We find a significant effect of maternal hypothyroxinemia on the general cognitive index, and on perceptual-manipulative and memory coefficients. |
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Keywords: | Hypothyroxinemia Pregnancy Iodine intake Neurodevelopment |
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