Disfunción tiroidea en gestantesvalores de referencia de TSH en la población de Pontevedra

Abstract

1.- To get to know TSH levels during first trimester of pregnancy. 2.- To review the studies about iodine levels in pregnant women from our regional area. 3.- Screening method: selective/universal. Study design. – Origin of the data: IANUS electronic medical history from pregnant women at the Integrated Management Area Pontevedra-Salnés in the first three months of 2015. – Type of study: Cross-sectional descriptive study. – Type of sampling: Conglomerate sampling. – Necessary sample size: 184 pregnant women. 275 stories were reviewed. Results. – Iodine consumption in Pontevedra is sufficient. Median urinary iodine concentration is 112.7 μg / l. Study design. – Origin of the data: IANUS electronic medical history from pregnant women at the Integrated Management Area Pontevedra-Salnés in the first three months of 2015. – Type of study: Cross-sectional descriptive study. – Type of sampling: Conglomerate sampling. – Necessary sample size: 184 pregnant women. 275 stories were reviewed. Results. – Iodine consumption in Pontevedra is sufficient. Median urinary iodine concentration is 112.7 μg / l. – Average age of pregnant women: 32.4 years old. Median: 33 years old. – Days from the beginning of pregnancy to the performance of the blood test: mean: 85 days, median: 87 days. – TSH levels in the first trimester: mean: 2.19 mU/L, percentile 2.5: 0.22, percentile 97.5: 5.63 mU/L. – There is a decrease in the mean value of TSH in pregnancy (2.33 / 2.19). The decline is 6.1%. – If the cut-off point for hypothyroidism is TSH> 2.5 mU / L, as suggested by the American Thyroid Association, 89 females (89/250) are diagnosed of hypothyroidism. The prevalence of hypothyroidism would be 36%. – Universal screening for hypothyroidism during gestation is made (250/250). Conclusions. – Iodine supplements are not needed for pregnant women in our regional area. – The reference values of TSH in pregnant women in our regional area are (0.22-5.61). – Hipothyroidism screening practices recommended by the Ministry’s Pregnancy Monitoring Guide are not meeting the criteria.