Abstract
Objective
The aim of this study was to compare pregnancy outcomes in euthyroid women who were anti-TPO Ab+ with those who were anti-TPO Ab−.
Design
This observational study comprised 1,000 women in the age group of 25–35 years, having normal thyroid function tests, normotensive, non-diabetic, singleton pregnancy and attending Gyn. OPD/ANC up to 20 weeks’ gestation and those who were already in the process of abortion. anti-TPO Ab levels of >50 IU/ml were considered as anti-TPO Ab+.
Setting
This study was conducted in the SMS Medical College’s attached hospital, Jaipur from April 2012 to September 2013.
Main Outcome
The estimation of the proportion of anti-TPO Abs in the hospital-based population and the comparison of pregnancy and neonatal outcomes in anti-TPO Ab+ and Ab− euthyroid women were done.
Results
The main result showed increased rates in miscarriages (13.33 vs. 2.34 %, P < 0.001), LBWs (25 vs. 5.12 %, P < 0.001), preterm deliveries [<34 weeks] (5 vs. 1.80 %, P > 0.05) in anti-TPO Ab+ women.
Conclusions
The current study revealed that anti-TPO Abs are strongly associated with miscarriage and LBW irrespective of their gestational age. However, we did not find any correlation with the other complication as found in the studies by Abbassi-Ghanavati, Negro et al.
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References
Potlukova E, Potluka O, Jiskra J, et al. Age as a risk factor for AITD in pregnancy. J Clin Endocrinol Metab. 2012;97(6):1945–52.
Rushworth FH, Backos M, Rai R, et al. Prospective pregnancy outcome in untreated recurrent miscarries with thyroid autoantibodies. Hum Reprod. 2011;15:1637–9.
Thangaratinam S, Tan A, Knox E, et al. Thyroid auto-antibodies are strongly associated with miscarriage and preterm birth: a meta-analysis of evidence. BMJ. 2011;342:d2616.
Bagis T, Gokcel A, Saygili ES. Autoimmune thyroid disease in pregnancy and the postpartum period: relationship to spontaneous abortion. Thyroid. 2011;11:1049–53. doi:10.1089/105072501753271743.
Gyamfi C, Wapner RJ, D’Alton ME. Thyroid dysfunction in pregnancy: the basic science and clinical evidence surrounding the controversy in management. Obstet Gynecol. 2009;113(3):702–7.
Nakamura H, Usa T, Motomura M, et al. Prevalence of interrelated autoantibodies in thyroid diseases and autoimmune disorders. J Endocrinol Invest. 2008;31(10):861–5.
Poppe K, Velkeniers B, Glinoer D. The role of thyroid autoimmunity in fertility and pregnancy. Nat Clin Pract Endocrinol Metab. 2008;4:394–405.
Zhong Yp, Ying Y, Wu HT, et al. Relationship between antithyroid antibody and pregnancy outcome following in vitro fertilization and embryo transfer. Int J Med Sci. 2012;9(2):121–5. doi:10.7150/ijms.3467.
Twig G, Shina A, Amital H, et al. Pathogenesis of infertility and recurrent pregnancy loss in thyroid autoimmunity. J Autoimmun. 2012;38:J275–81. doi:10.1016/j.jaut.2011.11.014.
Schmidt M, Voell M, Rahlff I, et al. Longterm follow-up of antithyroid peroxidase antibodies in patients with chronic autoimmune thyroiditis (Hashimoto’s thyroiditis) treated with levothyroxine. Thyroid. 2008;18:755–60.
Abbassi-Ghanavati M, Casey BM, Spong CY, et al . Pregnancy outcomes in women with thyroid peroxidase antibodies. Obstet Gynecol. 2010;116:381–6.
Cebecauer L, Radikova Z, Rovensky J, et al. Increased prevalence and coincidence of antinuclear and antithyroid antibodies in the population exposed to high levels of polychlorinated pollutants cocktail. Endocr Regul. 2009;43:75–81.
McElduff A, Morris J. Thyroid function tests and thyroid autoantibodies in an unselected population of women. Int J Med Sci. 2012;9:121–5. http://www.medsci.org.
Negro R, Schwartz A, Gismondi R, et al. Thyroid antibody positivity in the first trimester of pregnancy is associated with negative pregnancy outcomes. J Clin Endocrinol Metab. 2011;96:E920–4. doi:10.1210/jc.2011-0026.
Lee RH, Spencer CA, Mestman JH, et al. Free T4 immunoassays are flawed during pregnancy. Am J Obstet Gynecol. 2009;200(3):260-e1–6.
Yan J, Sripada S, Saravelos SH, et al. Thyroid peroxidase antibody in women with unexplained recurrent miscarriage: prevalence, prognostic value, and response to empirical thyroxine therapy. Fertil Steril. 2012;98:378–82. doi:10.1016/j.fertnstert.2012.04.025.
Fister P, Gaberscek S, Zaletel K, et al. Thyroid function in the third trimester of pregnancy and after delivery in an area of adequate iodine intake. Int J Gynaecol Obstet. 2011;112(1):52–5.
Kennedy RL, Malabu UH, Jarrod G, et al. Thyroid function and pregnancy: before during and beyond. J Obstet Gynecol. 2010;30(8):774–83.
Grossmann M, Hoermann R, Francis C, et al. Measuring thyroid peroxidase antibodies on the day nulliparous women present for management of miscarriage: a descriptive cohort study. Reprod Biol Endocrinol. 2013;11:40. doi:10.1186/1477-7827-11-40.
Vestgaard M, Nielsen VR, Rasmussen AK, et al. Thyroid peroxidase antibodies in pregnant women with type 1 diabetes :impact on thyroid function, metabolic control and pregnancy outcome. Acta Obstet Gynecol Scand. 2008;87(12):1336–42.
Mascanfroni I, Montesinos MM, Susperreguy S, et al. Control of dendritic cell maturation and function by triiodothyronine. FASEB J. 2008;22(4):1032–42.
Mehran L, Tohidi M, Sarvghadi F, et al. Management of thyroid peroxidase antibody euthyroid women in pregnancy: comparison of the american thyroid association and the endocrine society guidelines. J Thyroid Res. 2013;2013:6. Article ID 542692. doi:10.1155/2013/542692.
Friedrich N, Schwarz S, Thonack J, et al. Association between parity and autoimmune thyroiditis in a general female population. Autoimmunity. 2008;41:174–80.
Toulis KA, Goulis DG, Venetis CA, et al. Risk of spontaneous miscarriage in euthyroid women with thyroid autoimmunity undergoing IVF: a meta-analysis. Eur J Endocrinol. 2010;162(4):643–52.
Brix TH, Hansen PS, Kyvik KO, et al. Aggregation of thyroid autoantibodies in twins from opposite-sex pairs suggests that microchimerism may play a role in the early stages of thyroid autoimmunity. J Clin Endocrinol Metab. 2009;94:4439–43.
Hodkinson CF, Simpson EE, Beattie JH, et al. Preliminary evidence of immune function modulation by thyroid hormones in healthy men and women aged 55–70 years. J Endocrinol. 2009;202(1):55–63.
Camargo RY, Tomimori EK, Neves SC, et al. Thyroid and the environment: exposure to excessive nutritional iodine increases the prevalence of thyroid disorders in Sao Paulo. Braz Eur J Endocrinol. 2008;159:293–9.
Haddow JE, Cleary-Goldman J, McClain MR, et al. Thyroperoxidase and thyroglobulin antibodies in early pregnancy and preterm delivery. Obstet Gynecol. 2010;116(1):58–62.
Koleva H, Stuart S, O’Hara MW, et al. Risk factors for depressive symptoms during pregnancy. Arch Womens Ment Health. 2011;14(2):99–105.
Debieve F, Duliere S, Bernard P, et al. To treat or not to treat euthyroid autoimmune disorder during pregnancy? Gynecol Obstet Invest. 2009;67:178–82.
Anna L, Teresa JM, Ana C, et al. Undiagnosed thyroid dysfunction, & thyroid antibodies in Mediterranean population. Endocr J. 2010;38(3):391–6.
Shields B, Hill A, Bilous M, et al. Cigarette smoking during pregnancy is associated with alterations in maternal and fetal thyroid function. J Clin Endocrinal Metab. 2009;94(2):570–4.
Compliance with ethical requirements and conflict of interest
We ensure that accepted principles of ethical and professional conduct have been followed in this study. All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1975, as revised in 2008 (5). Informed consent was obtained from all patients for being included in the study. The authors declare that they have no conflict of interest.
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Meena, A., Nagar, P. Pregnancy Outcome in Euthyroid Women with Anti-Thyroid Peroxidase Antibodies. J Obstet Gynecol India 66, 160–165 (2016). https://doi.org/10.1007/s13224-014-0657-6
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DOI: https://doi.org/10.1007/s13224-014-0657-6