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Pharmacologic treatment of hyperthyroidism during pregnancy.
MedLine Citation:
PMID:  22511519     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Clinical hyperthyroidism has been associated with an increased risk of maternal, fetal, and neonatal complications. The available antithyroid drugs are methimazole/carbimazole and propylthiouracil. Several case reports and some epidemiologic studies suggest that methimazole/carbimazole exposure during the first trimester of pregnancy is associated with an increased risk of congenital malformations, including ectodermal anomalies, choanal atresia, esophageal atresia, and omphalocele. However, the absolute risk appears to be very small, and it remains unclear whether the association is driven by the maternal disease, the medication, or the combination of both factors. Propylthiouracil exposure has not been associated with an increased risk of congenital malformations and is the recommended drug during the first trimester of pregnancy. Since propylthiouracil-induced hepatotoxicity has been reported in approximately 0.1% of exposed adults and the number of case-reports of severe liver injury is increasing, treatment with low dose methimazole during the second and third trimesters should be considered. Until now, there has been no evidence that children prenatally exposed to methimazole/carbimazole or propylthiouracil have an increased risk of neurodevelopmental delay. Birth Defects Research (Part A), 2012. © 2012 Wiley Periodicals, Inc.
Authors:
Matteo Cassina; Marta Donà; Elena Di Gianantonio; Maurizio Clementi
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-4-18
Journal Detail:
Title:  Birth defects research. Part A, Clinical and molecular teratology     Volume:  -     ISSN:  1542-0760     ISO Abbreviation:  -     Publication Date:  2012 Apr 
Date Detail:
Created Date:  2012-4-18     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101155107     Medline TA:  Birth Defects Res A Clin Mol Teratol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Wiley Periodicals, Inc.
Affiliation:
Teratology Information Service, Clinical Genetics Unit, Department of Women's and Children's Health, University of Padova, Padova, Italy. matteo.cassina@unipd.it.
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