Effect of Levothyroxine on Pregnancy Outcomes in Pregnant Women With Hypothyroxinemia: An Interventional Study

ContextAdverse maternal outcomes and perinatal complications are associated with maternal hypothyroidism. However, the utility of levothyroxine (L-T4) in the treatment of pregnant women with hypothyroxinemia is unclear.ObjectiveThis study aimed to evaluate the effects of L-T4 on maternal and perinat...

Full description

Bibliographic Details
Main Authors: Guohua Li, Yang Liu, Xiujuan Su, Shijia Huang, Xiaosong Liu, Qiaoling Du
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-04-01
Series:Frontiers in Endocrinology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fendo.2022.874975/full
_version_ 1811300434781929472
author Guohua Li
Yang Liu
Xiujuan Su
Shijia Huang
Xiaosong Liu
Qiaoling Du
author_facet Guohua Li
Yang Liu
Xiujuan Su
Shijia Huang
Xiaosong Liu
Qiaoling Du
author_sort Guohua Li
collection DOAJ
description ContextAdverse maternal outcomes and perinatal complications are associated with maternal hypothyroidism. However, the utility of levothyroxine (L-T4) in the treatment of pregnant women with hypothyroxinemia is unclear.ObjectiveThis study aimed to evaluate the effects of L-T4 on maternal and perinatal outcomes in pregnant women with hypothyroxinemia.MethodsThe nonrandomized interventional study was conducted at Shanghai First Maternity and Infant Hospital, Punan Hospital of Shanghai, and Beicai Community Health Center of Shanghai. The pregnant women with hypothyroxinemia from the first trimester were enrolled and divided into treatment and control groups. 463 taking L-T4 and 501 not administering L-T4 were analyzed in the study. All participants were screened for TPOAB/TGAB antibody status.Main OutcomeThe primary outcome of the study was the hypertensive disorder of pregnancy (HDP), measured as the proportion of HDP. In addition to this primary outcome, some secondary outcomes will be measured: miscarriage, gestational diabetes mellitus, premature rupture of membranes, placental abruption, intrahepatic cholestasis of pregnancy, fetal distress, macrosomia, and neonates admitted to the neonatal intensive care unit (NICU). The effects of L-T4 on the incidence of adverse pregnancy outcomes and perinatal complications were compared.ResultsMultivariate logistic regression analysis showed that L-T4 treatment (adjusted odds ratio = 1.78 [95% CI = 1.00-3.16], p = 0.04) significantly reduced the incidence of miscarriage. Otherwise, lower neonates admitted to the NICU were strongly associated with the L-T4 group (adjusted odds ratio = 1.36 [95% CI = 1.01 – 1.83], p = 0.04). There were no significant differences in the incidence rates of other adverse maternal outcomes and perinatal complications between pregnant women with hypothyroxinemia receiving and those not receiving L-T4 treatment.ConclusionThe incidence of HDP was not significantly reduced using L-T4 in pregnant women with hypothyroxinemia. The results of this study also showed that L-T4 treatment significantly reduced the miscarriages rate and the proportion of newborns admitted to the NICU.
first_indexed 2024-04-13T06:51:07Z
format Article
id doaj.art-32fdb7de2d4f4c4cb7619829dcb60c9e
institution Directory Open Access Journal
issn 1664-2392
language English
last_indexed 2024-04-13T06:51:07Z
publishDate 2022-04-01
publisher Frontiers Media S.A.
record_format Article
series Frontiers in Endocrinology
spelling doaj.art-32fdb7de2d4f4c4cb7619829dcb60c9e2022-12-22T02:57:23ZengFrontiers Media S.A.Frontiers in Endocrinology1664-23922022-04-011310.3389/fendo.2022.874975874975Effect of Levothyroxine on Pregnancy Outcomes in Pregnant Women With Hypothyroxinemia: An Interventional StudyGuohua Li0Yang Liu1Xiujuan Su2Shijia Huang3Xiaosong Liu4Qiaoling Du5Department of Reproductive Immunology, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, ChinaDepartment of Obstetrics, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, ChinaClinical Research Center, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, ChinaDepartment of Obstetrics, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, ChinaDepartment of Obstetrics, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, ChinaDepartment of Obstetrics, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, ChinaContextAdverse maternal outcomes and perinatal complications are associated with maternal hypothyroidism. However, the utility of levothyroxine (L-T4) in the treatment of pregnant women with hypothyroxinemia is unclear.ObjectiveThis study aimed to evaluate the effects of L-T4 on maternal and perinatal outcomes in pregnant women with hypothyroxinemia.MethodsThe nonrandomized interventional study was conducted at Shanghai First Maternity and Infant Hospital, Punan Hospital of Shanghai, and Beicai Community Health Center of Shanghai. The pregnant women with hypothyroxinemia from the first trimester were enrolled and divided into treatment and control groups. 463 taking L-T4 and 501 not administering L-T4 were analyzed in the study. All participants were screened for TPOAB/TGAB antibody status.Main OutcomeThe primary outcome of the study was the hypertensive disorder of pregnancy (HDP), measured as the proportion of HDP. In addition to this primary outcome, some secondary outcomes will be measured: miscarriage, gestational diabetes mellitus, premature rupture of membranes, placental abruption, intrahepatic cholestasis of pregnancy, fetal distress, macrosomia, and neonates admitted to the neonatal intensive care unit (NICU). The effects of L-T4 on the incidence of adverse pregnancy outcomes and perinatal complications were compared.ResultsMultivariate logistic regression analysis showed that L-T4 treatment (adjusted odds ratio = 1.78 [95% CI = 1.00-3.16], p = 0.04) significantly reduced the incidence of miscarriage. Otherwise, lower neonates admitted to the NICU were strongly associated with the L-T4 group (adjusted odds ratio = 1.36 [95% CI = 1.01 – 1.83], p = 0.04). There were no significant differences in the incidence rates of other adverse maternal outcomes and perinatal complications between pregnant women with hypothyroxinemia receiving and those not receiving L-T4 treatment.ConclusionThe incidence of HDP was not significantly reduced using L-T4 in pregnant women with hypothyroxinemia. The results of this study also showed that L-T4 treatment significantly reduced the miscarriages rate and the proportion of newborns admitted to the NICU.https://www.frontiersin.org/articles/10.3389/fendo.2022.874975/fulllevothyroxinehypothyroxinemiahypertensive disorder of pregnancymaternal outcomesmiscarriage
spellingShingle Guohua Li
Yang Liu
Xiujuan Su
Shijia Huang
Xiaosong Liu
Qiaoling Du
Effect of Levothyroxine on Pregnancy Outcomes in Pregnant Women With Hypothyroxinemia: An Interventional Study
Frontiers in Endocrinology
levothyroxine
hypothyroxinemia
hypertensive disorder of pregnancy
maternal outcomes
miscarriage
title Effect of Levothyroxine on Pregnancy Outcomes in Pregnant Women With Hypothyroxinemia: An Interventional Study
title_full Effect of Levothyroxine on Pregnancy Outcomes in Pregnant Women With Hypothyroxinemia: An Interventional Study
title_fullStr Effect of Levothyroxine on Pregnancy Outcomes in Pregnant Women With Hypothyroxinemia: An Interventional Study
title_full_unstemmed Effect of Levothyroxine on Pregnancy Outcomes in Pregnant Women With Hypothyroxinemia: An Interventional Study
title_short Effect of Levothyroxine on Pregnancy Outcomes in Pregnant Women With Hypothyroxinemia: An Interventional Study
title_sort effect of levothyroxine on pregnancy outcomes in pregnant women with hypothyroxinemia an interventional study
topic levothyroxine
hypothyroxinemia
hypertensive disorder of pregnancy
maternal outcomes
miscarriage
url https://www.frontiersin.org/articles/10.3389/fendo.2022.874975/full
work_keys_str_mv AT guohuali effectoflevothyroxineonpregnancyoutcomesinpregnantwomenwithhypothyroxinemiaaninterventionalstudy
AT yangliu effectoflevothyroxineonpregnancyoutcomesinpregnantwomenwithhypothyroxinemiaaninterventionalstudy
AT xiujuansu effectoflevothyroxineonpregnancyoutcomesinpregnantwomenwithhypothyroxinemiaaninterventionalstudy
AT shijiahuang effectoflevothyroxineonpregnancyoutcomesinpregnantwomenwithhypothyroxinemiaaninterventionalstudy
AT xiaosongliu effectoflevothyroxineonpregnancyoutcomesinpregnantwomenwithhypothyroxinemiaaninterventionalstudy
AT qiaolingdu effectoflevothyroxineonpregnancyoutcomesinpregnantwomenwithhypothyroxinemiaaninterventionalstudy