Objective: To find the prevalence of subclinical hypothyroidism in the first trimester of pregnancy and to compare the maternal and perinatal outcome in them with euthyroid mothers.Methods: The present study was a prospective observational case-control study done in a tertiary hospital over the period of one and half years. Pregnant women in the first trimester of pregnancy were tested for Thyroid Stimulating Hormone (TSH) levels and those who had TSH>2.5mIU/l, free T3 and free T4 estimation was carried out on the same sample. A total of 171 women could be followed up till delivery and their first-trimester thyroid profile was available for analysis. They were grouped into two groups, Group 1: all women with TSH level>2.5 mIU/l, considered to be hypothyroid (n=79), Group 2: women with euthyroid status with TSH levels 0.1 to 2.5 mIU/l (n=95). All the neonates delivered in the first group had cord blood TSH estimation.Results: In the study period, there were 2632 deliveries. The number of pregnant women with first trimester TSH levels>2.5 mIU/l were 79, giving the prevalence rate of 3 % for subclinical hypothyroidism during pregnancy. The obstetric complications observed were gestational hypertension 3.8%, gestational diabetes 6.3%, placenta praevia1.3% and preterm delivery 7.6%. The perinatal complications included Intrauterine growth restriction (IUGR) 1.3%, Low Birth Weight (LBW) 3.8%, perinatal asphyxia 2.5% and neonatal hypothyroidism 1.3%. Only preterm delivery appeared to be significantly associated with subclinical hypothyroidism.Conclusion: The observed complication rates were much similar, in fact, lesser with gestational diabetes, pregnancy hypertension, IUGR, LBW compared to global and Indian prevalence rates. This indicates that the cut-off for diagnosing subclinical hypothyroidism should be derived from TSH assays from the local geographic population and should guide the treating physician to establish appropriate TSH ranges where definite therapeutic intervention is required to improve the maternal and foetal outcome.
INTRODUCTIONMaternal perception of fetal movements is a selfscreening method for assessing fetal well-being. Studies have shown that reduced fetal movement (RFM) is a risk factor for several adverse perinatal outcomes. About a quarter of women presenting with RFM have pregnancies complicated by fetal growth restriction, preterm delivery, fetal distress or stillbirth. A growing number of studies have confirmed a correlation between episodes of RFM and stillbirth.1 RFM has been shown to occur in up to 15% of pregnancies.2 Women who have a stillbirth note a reduction in fetal movement prior to diagnosis in up to 55%.3 Inadequate clinician response to the complaint of RFM is an important contributory factor to stillbirth. 4 Fetal movement counting may allow the clinician to make appropriate interventions in right time to improve ABSTRACT Background: Reduced maternal perception of fetal movements allows early identification, timely evaluation and intervention for fetuses at risk of adverse outcome. The primary objective of this study was to assess the pregnancy characteristics and outcomes of pregnant women presenting to hospital with reduced fetal movements (RFM). Methods: Prospective observational study, recruiting all women with singleton pregnancy at or beyond 28 weeks of gestation presenting with a subjective perception of RFM from April 2015 to December 2016. Maternal characteristics, antenatal risk factors, management pathways and perinatal outcome studied. Results: 47% belonged to high risk pregnancy. Among high risk women, although only 39% showed poor BPP at the first presentation, 58% were delivered irrespective of their gestational age, out of which 32.75% had poor neonatal outcome. Among low risk who had >2 episodes of RFM, 50% had poor neonatal outcome. 7% among high risk pregnancies and 18% among low risk, presented with RFM within 48 hours following steroid prophylaxis.24% of high risk women showed liquor volume abnormalities as compared to low risk (6.3%). Conclusions: Significant proportion of those with RFM belonged to high risk pregnancy. Among high risk group, there were high rates of stillbirth and poor BPP at the time of admission when compared to low risk group. Due to early approach to the hospital and timely intervention, significant women with abnormal BPP had good perinatal outcome. All those fetuses who were delivered on first episode of RFM in low risk group did not show evidence of compromise at birth, probably indicating unnecessary delivery. More than 2 episodes of RFM even among low risk group seems significant as good number of fetuses were compromised at birth. Steroids prophylaxis for the fetal lung maturity causes transient changes in BPP, hence unnecessary delivery should be avoided especially those among low risk pregnancy.
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