El documento resume la fisiología tiroidea durante el embarazo y sus implicaciones. Detalla los requerimientos de yodo, las pruebas recomendadas para monitorear la función tiroidea, y los efectos del hipotiroidismo y hipertiroidismo tanto en la madre como en el feto. Explica las complicaciones y tratamientos de estas condiciones tiroideas durante el embarazo.
8. TSH FT 4 TBG Y FUNCION TIROIDEA (4-10 SEMANAS) Thyroid gland Pituitaria TBG
9. TSH FT 4 Tiroides TBG TBG Y FUNCION TIROIDEA (4-10 SEMANAS) Pituitaria TSH-FT4 NORMAL TSH. Primer trimestres = .1 – 2.5 2do y 3ter trimestre=menor de 3.0
10. hCG TSH FT 4 Thyroid gland TBG Y FUNCION TIROIDEA (6-13 SEMANAS) Pituitaria RECEPTOR DEL TSH TSH-FT4 NORMAL
24. Score de niños nacidos con hipotiroxinemia 0,08 13% 4% Score I.Q. >2 SD , por debajo de la media de los controles 0,259 ( tto Lt4) 111 107 Score I.Q. 0,004 (no tratado) 111 107 Score I.Q. 0.06 ( general ) 103 107 Score I.Q. Valor P Madre Hipo-T4 Madre control/ sano
The lower limit of TSH is significantly influenced by hCG status. Specifically, hCG-mediated thyroidal stimulation is maximal at around 10 weeks gestation. The hCG peak is mirrored by an inverse change in TSH and as shown in the inset exhibits a modest positive relationship with FT4. The inclusion of patients with excessively high hCG will tend to skew the TSH lower reference limit. There are two conditions associated with excess hCG.
The lower limit of TSH is significantly influenced by hCG status. Specifically, hCG-mediated thyroidal stimulation is maximal at around 10 weeks gestation. The hCG peak is mirrored by an inverse change in TSH and as shown in the inset exhibits a modest positive relationship with FT4. The inclusion of patients with excessively high hCG will tend to skew the TSH lower reference limit. There are two conditions associated with excess hCG.
