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1.
Med Clin (Barc) ; 122(12): 449-53, 2004 Apr 03.
Article in Spanish | MEDLINE | ID: mdl-15104955

ABSTRACT

BACKGROUND AND OBJECTIVE: Studies from Spain suggest that the intake of iodine in pregnant women is below nutritional requirements. This study was designed to determine iodine intake and its relation with thyroid volume during pregnancy in women from southeast Spain. PATIENTS AND METHOD: A total of 520 healthy pregnant women were studied during the full three trimesters of their pregnancy. A control group was composed of 373 non-pregnant women. The following variables were measured: TSH, FT3, FT4, thyroglobulin, antiperoxidase antibodies, urinary iodine levels, and thyroid volume. RESULTS: Median urinary iodine levels were below 100 g/l in the controls and the pregnant women during their first trimester. These levels rose progressively and significantly over the second and third trimesters. Thyroid volume increased during the second and third trimesters compared with the first. TSH levels were lower during the first trimester compared to controls, and increased significantly during the third trimester. FT4 levels fell significantly during the third trimester. There was a significant negative correlation between TSH levels and thyroid volume (r = 0.22; p = 0.005). CONCLUSIONS: Iodine intake in pregnant women in Malaga is low. The results suggest a deficit in thyroid function secondary to iodine deficiency, which is worsened as pregnancy advances. The data support the convenience of systematic administration of an iodine supplement in healthy pregnant women.


Subject(s)
Iodine/deficiency , Thyroid Gland/physiology , Adult , Dietary Supplements , Female , Humans , Iodine/urine , Pregnancy , Spain/epidemiology , Thyroid Function Tests
2.
Med. clín (Ed. impr.) ; 122(12): 449-453, abr. 2004.
Article in Es | IBECS | ID: ibc-31582

ABSTRACT

FUNDAMENTO Y OBJETIVO: Estudios realizados en España demuestran que la ingesta de yodo en mujeres gestantes está por debajo de los requerimientos nutricionales. Con este estudio se pretende comprobar la ingesta de yodo y su relación con el volumen tiroideo a lo largo del embarazo en una población de mujeres embarazadas en el sudeste español. PACIENTES Y MÉTODO: Se ha estudiado a 520 mujeres sanas embarazadas a lo largo de los 3 trimestres de embarazo. Como grupo control se ha estudiado a 373 mujeres no gestantes. Se han medido las siguientes variables: hormona tirotropa (TSH) y T3 y T4 libres, tiroglobulina, anticuerpos antiperoxidasa, yoduria y volumen tiroideo. RESULTADOS: Tanto en las controles como en las mujeres embarazadas en el primer trimestre, las medianas de las yodurias estuvieron por debajo de 100 µg/l, para aumentar progresiva y significativamente en el segundo y tercer trimestres. El volumen tiroideo se incrementó en el segundo y tercer trimestres respecto al primero. Los valores de TSH fueron menores en el primer trimestre que los de las controles, para aumentar significativamente en el tercer trimestre. La T4 libre disminuyó significativamente en el tercer trimestre. Los valores de TSH se han correlacionado de forma negativa y significativa con el volumen tiroideo (r = -0,22; p = 0,005). CONCLUSIONES: La ingesta de yodo en las mujeres embarazadas de Málaga es baja. Los resultados indican una situación de déficit de la función tiroidea secundaria al déficit de yodo que se agrava a lo largo del embarazo. Los datos apoyan la conveniencia de administrar sistemáticamente un suplemento yodado en la mujer embarazada sana (AU)


Subject(s)
Adult , Female , Humans , Pregnancy , Dietary Supplements , Iodine , Spain , Thyroid Gland , Dietary Supplements , Thyroid Function Tests
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