The study of maternal and fetal outcome in pregnant women with thyroid disorders

Background: Thyroid disorders are among the common endocrine disorders in pregnant women after diabetes mellitus. Several changes are observed in maternal thyroid function during pregnancy and failure to adapt to these physiological changes results in thyroid dysfunction. It is well established that not only overt, but subclinical thyroid dysfunction also has adverse effect on mother and the fetus, like miscarriages, preterm delivery, preeclampsia, eclampsia, polihydromnios, placental abruption, post-partum haemorrhage, low birth weight, neonatal hypothyroidism. Decreased availability of thyroid hormones may also impair neurological and intellectual development of foetus. With this background, we are conducting a study to know the effect of thyroid disorders on pregnancy and its maternal and the fetal outcome.Methods: The present study was conducted in ESI Hospital Rajaji Nagar, Bangalore. It is a prospective study which involved 100 patients diagnosed to have thyroid disorder during their antenatal checkup in the first trimister. It also includes known cases of thyroid disorder. TSH level was estimated. If it is deranged, then FT3 and FT4 levels estimated. Patients were managed accordingly and followed till delivery. Their obstetric and perinatal outcomes were noted.Results: In our study out of 100 cases, 96 cases are subclinical hypohyroid and 4 cases are subclinical hyperthyroid. Subclinical hypothyroidism in pregnancy are associated with abortions (2.1%), Anaemia (4.20%), PIH (14.7%), GDM (4.2%), Preterm labour (3.1%), oligohydromnios (16.67%), Lscs (22.9%), PPH (6.3%), LBW (21.9%), Hyperbilirubinemia (9.4%), NICU admission (14.6%), Which are co-relatine with other studies and hyperthyroid cases in our study were not sufficient for outcome analysis.Conclusions: Thyroid disorders in pregnancy have adverse effects on maternal and fetal outcome emphasizing the importance of routine antenatal thyroid screening.