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Efficacy of propylthiouracil in the treatment of pregnancy with hyperthyroidism and its effect on pregnancy outcomes: A meta-analysis

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  • Yiqun Miao
  • Yang Xu
  • Ping Teng
  • Aihua Wang
  • Yuanyuan Zhang
  • Yun Zhou
  • Wenwen Liu

Abstract

Background: Hyperthyroidism affects about 0.2%-2.7% of all pregnancies, and is generally treated with propylthiouracil (PTU). However, previous studies about the effects of propylthiouracil on maternal or foetal are contentious. Objective: This meta-analysis was carried out to investigate the safety and efficacy of propylthiouracil during pregnancy. Materials and methods: PubMed, EBSCO, Embase, Scopus, Web of Science, Cochrane, CNKI, Wanfang and VIP database were searched from inception until August 31, 2021 for all available randomized controlled trials (RCTs) or cohort studies that evaluated the efficacy of propylthiouracil and its effects on pregnancy outcomes. Odds ratio (OR) and 95% confidence interval (CI) were used for binary variables, weighted mean difference (WMD) and 95% confidence interval (CI) were used for continuous variables. RevMan5.4 and Stata 16.0 were used for performing the meta-analysis. Results: The researchers examined data from 13 randomized controlled trials and cohort studies involving 18948 infants. Congenital anomalies were not significantly associated with PTU in the pooled results (OR = 1.03, 95%CI: 0.84–1.25, P = 0.80, I2 = 40.3%). There were no statistically significant differences in neonatal hypothyroidism (OR = 0.55, 95%CI: 0.06–4.92, P = 0.593, I2 = 57.0%) or hepatotoxicity (OR = 0.34, 95%CI: 0.08–1.48, P = 0.151, I2 = 0.0%) exposed to PTU compared to the control group. The serum levels of FT3, FT4, TT3, and TT4 were significantly lower in the propylthiouracil group compared to the control group. Conclusion: This meta-analysis confirmed the beneficial effects of propylthiouracil treatment, namely the risks of adverse pregnancy outcomes were not increased, and it also proved PTU’s efficacy in the treatment of pregnant women with hyperthyroidism. The findings supported the use of propylthiouracil during pregnancy with hyperthyroidism in order to improve clinical pregnancy outcomes in patients with thyroid dysfunction.

Suggested Citation

  • Yiqun Miao & Yang Xu & Ping Teng & Aihua Wang & Yuanyuan Zhang & Yun Zhou & Wenwen Liu, 2022. "Efficacy of propylthiouracil in the treatment of pregnancy with hyperthyroidism and its effect on pregnancy outcomes: A meta-analysis," PLOS ONE, Public Library of Science, vol. 17(3), pages 1-16, March.
    • Handle: RePEc:plo:pone00:0265085
    DOI: 10.1371/journal.pone.0265085
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