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Prevalence of Overt and Subclinical Thyroid Dysfunction Among Pregnant Women and Its Effect on Maternal and Fetal Outcome

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Abstract

Aim

To determine the current prevalence of thyroid dysfunction in normal pregnant women and to study the impact of thyroid dysfunction on maternal and fetal outcome.

Methods

400 pregnant women between 13 and 26 weeks of gestation were registered for the study. Apart from routine obstetrical investigations, TSH tests were done. Free T4 and anti-TPO antibody tests were done in patients with deranged TSH. Patients were followed up till delivery. Their obstetrical and perinatal outcomes were noted.

Results

The prevalence of hypothyroidism and hyperthyroidism was 12 and 1.25 %, respectively. Adverse maternal effects in overt hypothyroidism included preeclampsia (16.6 vs. 7.8 %) and placental abruption (16.6 vs. 0.8 %). Subclinical hypothyroidism was associated with preeclampsia (22.3 vs. 7.8 %) as compared to the euthyroid patients. Adverse fetal outcomes in overt hypothyroidism included spontaneous abortion (16.6 vs. 2.39 %), preterm birth (33.3 vs. 5.8 %), low birth weight (50 vs. 12.11 %), intrauterine growth retardation (25 vs. 4.9 %), and fetal death (16.6 vs. 1.7 %) as compared to the euthyroid women. Adverse fetal outcomes in subclinical hypothyroidism included spontaneous abortion (5.5 vs. 2.39 %), preterm delivery (11.2 vs. 5.8 %), low birth weight (25 vs. 12.11 %), and intrauterine growth retardation (8.4 vs. 4.9 %) as compared to the euthyroid women.

Conclusions

The prevalence of thyroid disorders was high in our study with associated adverse maternal and fetal outcomes. Routine screening of thyroid dysfunction is recommended to prevent adverse fetal and maternal outcome.

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Authors and Affiliations

  1. Department of Obstetrics and Gynecology, Kasturba Hospital, New Delhi, 110002, India

    Sangita Nangia Ajmani (Senior Specialist), Deepa Aggarwal (Post Graduate Student), Pushpa Bhatia (Ex HOD), Vinita Sarabhai (Senior Specialist) & Mohini Paul (Senior Specialist)

  2. D-117, Ajay Enclave, P.O Tilak Nagar, New Delhi, 110018, India

    Sangita Nangia Ajmani (Senior Specialist)

  3. Department of Obstetrics and Gynecology, Hindu Rao Hospital, New Delhi, India

    Manisha Sharma (Senior Specialist)

Authors
  1. Sangita Nangia Ajmani
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  2. Deepa Aggarwal
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  3. Pushpa Bhatia
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  4. Manisha Sharma
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  5. Vinita Sarabhai
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  6. Mohini Paul
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Correspondence to Sangita Nangia Ajmani.

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Ajmani, S.N., Aggarwal, D., Bhatia, P. et al. Prevalence of Overt and Subclinical Thyroid Dysfunction Among Pregnant Women and Its Effect on Maternal and Fetal Outcome. J Obstet Gynecol India 64, 105–110 (2014). https://doi.org/10.1007/s13224-013-0487-y

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  • DOI: https://doi.org/10.1007/s13224-013-0487-y

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