Comparison of maternal and perinatal outcome in pregnancy with altered thyroid profile and euthyroid patients: a prospective, observational and case control study in a tertiary care centre

Background: Thyroid disease is one of the commonest endocrine disorder affecting women of reproductive age, and when untreated during pregnancy is associated with an increased risk of complications. The objective of this review was to increase awareness and to provide a review on adverse effect of thyroid dysfunction on maternal and perinatal outcome.Methods: This prospective, observational hospital-based case-control study carried on women coming for antenatal check-up in a Tertiary Care Hospital in INDORE from May 2018-December 2018. 50 known booked antenatal (case) patient with established thyroid disorder, more than 32 week of gestation, and 50-matched euthyroid patients (control) were taken.Results: Women suffering from overt and subclinical hypothyroidism and hyperthyroidism are nulliparous in 72% cases as compared to 32% in euthyroid patient. Increased maternal age was associated with higher incidence of thyroid dysfunction. Normal vaginal delivery by spontaneous labour seen in 56% of euthyroid, while it is reduced with thyroid dysfunction. 38% of altered thyroid profile patient undergo induction of labour and 24% cases undergo caesarean section as compared to control (17%). Adverse fetal outcome like intrauterine growth retardation, preterm birth and ICU admission seen increased with thyroid dysfunction as compared to euthyroid patients.Conclusions: Thyroid dysfunction in pregnancy, although has a low incidence, but is associated with adverse maternal and fetal implications. Thus, thyroid screening should be done in antenatal period to improve fetomaternal outcome.