Un enfoque para un problema sanitario y social: yodurias en embarazadas de una región yododeficiente An approach to a sanitary and social problem: urinary iodine excretion in pregnant women from a iodine deficient region

La yoduria o eliminación urinaria de yodo (EUI) es un método efectivo para detectar el déficit en su ingesta. En 121 embarazadas se midió yoduria en dos muestras (matutina y vespertina) con el método turbidimétrico modificado por Pino. Se consideró normal una EUI =150 ug/l. En las mujeres con EUIThe urinary iodine excretion (UIE) assay is an effective method to detect reduced iodine intake. UIE was measured in two different samples (morning and evening) from 121 pregnant women, with a turbid-metric method modified by Pino (normal value =150 ug/l). Furthermore, thyroid function was evaluated in pregnant women with UIE <100 ug/l. From 121 pregnant women, the UIE was normal in 75 with similar morning and evening samples (morning: 305.2± 7.0; evening: 319.2± 8.8; p: NS). The UIE did no showed differences in different trimesters and in morning and evening samples. The UIE was low in 46 women (36.9%), without significant differences between morning and evening (morning: 88.12 ± 5.07 &#956;g/l; evening: 88.7± 6.2 &#956;g/l; p: NS). Normal or low UIE were not influenced by the age of pregnant women and 45% of pregnant women with UIE <100ug/l showed impaired thyroid function. Morning and evening study of UIE allowed us to detect a higher number of pregnant women with low iodine intake. This study let us to find thyroid function abnormalities likes a screening method, because in our state there is not a public screening program for gestational hypothyroidism