PMID- 37861945 OWN - NLM STAT- Publisher LR - 20231020 IS - 1559-0100 (Electronic) IS - 1355-008X (Linking) DP - 2023 Oct 20 TI - Third-Generation Thyrotropin Receptor Antibody (TRAb) assay for predicting neonatal thyroid dysfunction in pregnant women with Graves' disease. LID - 10.1007/s12020-023-03569-3 [doi] AB - PURPOSE: The aim is to validate the third generation Thyrotropin receptor antibody (TRAb) assay for predicting neonatal thyroid dysfunction and adverse pregnancy outcomes in pregnant women with Graves' disease. METHODS: This prospective cohort study was conducted in TRAb positive pregnant women with Graves' disease and their off springs. The primary outcome was to assess different forms of neonatal thyroid dysfunction in relation to maternal and neonatal TRAb levels. The secondary outcome was to predict adverse pregnancy outcomes by using maternal TRAb levels. Serum T3, FT4, TSH, TRAb levels were measured using electrochemiluminescence immunoassay. RESULTS: 51 pregnant women were included. Five women had adverse pregnancy outcomes, TRAb levels of > 19.06 IU/L (10.9 times the upper limit of normal (ULN)) predicted adverse pregnancy outcomes with 100% sensitivity and 93.5% specificity. Among the 46 successful live births, 13 (28.3%) had neonatal thyroid dysfunction. Out of 13 neonates, 7 (32%) had neonatal thyrotoxicosis, 4 (18%) had primary hypothyroidism, and 2 (9%) had central hypothyroidism. Third trimester maternal TRAb levels of > 7.99 IU/L (4.6 times the ULN)and day three neonatal TRAb levels of > 5.03 IU/L (2.9 times the ULN), predicted the neonatal thyrotoxicosis with 100% sensitivity and 97.4% specificity. CONCLUSION: Very high maternal third generation TRAb levels strongly predicted the adverse pregnancy outcomes and neonatal thyroid dysfunction in pregnant women with Graves' disease. Neonatal thyroid function test along with the TRAb levels strongly correlated with different forms of neonatal thyroid dysfunction and is very useful in avoiding inadvertent treatment to neonates. CI - (c) 2023. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature. FAU - Priyanka, Raghavendran AU - Priyanka R AD - Department of Endocrinology, Madurai Medical College & Govt. Rajaji Hospital, Madurai, 625 020, Tamil Nadu, India. FAU - Sridhar, Subbiah AU - Sridhar S AUID- ORCID: 0000-0001-5451-0848 AD - Department of Endocrinology, Madurai Medical College & Govt. Rajaji Hospital, Madurai, 625 020, Tamil Nadu, India. drsridharjipmer@gmail.com. FAU - Sumathi, Baskaran AU - Sumathi B AD - Department of Obstetrics and Gynecology, Madurai Medical College & Govt. Rajaji Hospital, Madurai, 625 020, Tamil Nadu, India. FAU - Jeyaraj, Ashok Raja AU - Jeyaraj AR AD - Department of Endocrinology, Madurai Medical College & Govt. Rajaji Hospital, Madurai, 625 020, Tamil Nadu, India. AD - Department of Neonatology, Madurai Medical College & Govt Rajaji Hospital, Madurai, India. FAU - Natarajan, Vasanthiy AU - Natarajan V AD - Department of Endocrinology, Madurai Medical College & Govt. Rajaji Hospital, Madurai, 625 020, Tamil Nadu, India. FAU - Subbiah, Eagappan AU - Subbiah E AD - Department of Diabetology, Madurai Medical College & Govt. Rajaji Hospital, Madurai, 625 020, Tamil Nadu, India. FAU - Raghavan, Kasthuri Santharam AU - Raghavan KS AD - Department of Diabetology, Madurai Medical College & Govt. Rajaji Hospital, Madurai, 625 020, Tamil Nadu, India. FAU - Sangumani, Jayaraman AU - Sangumani J AD - Dean, Government Medical College, Virudhunagar, Virudhunagar, 626001, Tamil Nadu, India. LA - eng PT - Journal Article DEP - 20231020 PL - United States TA - Endocrine JT - Endocrine JID - 9434444 SB - IM OTO - NOTNLM OT - Graves' disease OT - Hyperthyroidism OT - Thyroid storm OT - Thyrotoxicosis OT - Thyrotropin Receptor Antibody (TRAb) EDAT- 2023/10/20 12:44 MHDA- 2023/10/20 12:44 CRDT- 2023/10/20 11:13 PHST- 2023/07/10 00:00 [received] PHST- 2023/10/09 00:00 [accepted] PHST- 2023/10/20 12:44 [medline] PHST- 2023/10/20 12:44 [pubmed] PHST- 2023/10/20 11:13 [entrez] AID - 10.1007/s12020-023-03569-3 [pii] AID - 10.1007/s12020-023-03569-3 [doi] PST - aheadofprint SO - Endocrine. 2023 Oct 20. doi: 10.1007/s12020-023-03569-3.