Evidence map›Paper›PMID 34899598›Full record

ArticleFrontiers in endocrinology2021

Postpartum Thyroid Dysfunction in Women With Known and Newly Diagnosed Hypothyroidism in Early Pregnancy.

Xiaotong Gao, Xichang Wang, Yutong Han, Haoyu Wang, Jiashu Li, Yuanyuan Hou, Yang Yang, Huiru Wang, Weiping Teng, Zhongyan Shan

Open access · goldAbstract readHistorical Article
In one paragraph

Article in Frontiers in endocrinology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
1.3field-weighted citation impact, top 18% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed, 10 citations in OpenAlex.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 1 institution in 1 country.

Xiaotong GaoDepartment of Endocrinology and Metabolism, Institute of Endocrinology, National Health Commission (NHC) Key laboratory of Diagnosis and Treatment of Thyroid Diseases, The First Affiliated Hospital of China Medical University, Shenyang, China.
Xichang WangDepartment of Endocrinology and Metabolism, Institute of Endocrinology, National Health Commission (NHC) Key laboratory of Diagnosis and Treatment of Thyroid Diseases, The First Affiliated Hospital of China Medical University, Shenyang, China.
Yutong HanDepartment of Endocrinology and Metabolism, Institute of Endocrinology, National Health Commission (NHC) Key laboratory of Diagnosis and Treatment of Thyroid Diseases, The First Affiliated Hospital of China Medical University, Shenyang, China.
Haoyu WangDepartment of Endocrinology and Metabolism, Institute of Endocrinology, National Health Commission (NHC) Key laboratory of Diagnosis and Treatment of Thyroid Diseases, The First Affiliated Hospital of China Medical University, Shenyang, China.
Jiashu LiDepartment of Endocrinology and Metabolism, Institute of Endocrinology, National Health Commission (NHC) Key laboratory of Diagnosis and Treatment of Thyroid Diseases, The First Affiliated Hospital of China Medical University, Shenyang, China.
Yuanyuan HouDepartment of Endocrinology and Metabolism, Institute of Endocrinology, National Health Commission (NHC) Key laboratory of Diagnosis and Treatment of Thyroid Diseases, The First Affiliated Hospital of China Medical University, Shenyang, China.
Yang YangDepartment of Endocrinology and Metabolism, Institute of Endocrinology, National Health Commission (NHC) Key laboratory of Diagnosis and Treatment of Thyroid Diseases, The First Affiliated Hospital of China Medical University, Shenyang, China.
Huiru WangDepartment of Endocrinology and Metabolism, Institute of Endocrinology, National Health Commission (NHC) Key laboratory of Diagnosis and Treatment of Thyroid Diseases, The First Affiliated Hospital of China Medical University, Shenyang, China.
Weiping TengDepartment of Endocrinology and Metabolism, Institute of Endocrinology, National Health Commission (NHC) Key laboratory of Diagnosis and Treatment of Thyroid Diseases, The First Affiliated Hospital of China Medical University, Shenyang, China.
Zhongyan ShanDepartment of Endocrinology and Metabolism, Institute of Endocrinology, National Health Commission (NHC) Key laboratory of Diagnosis and Treatment of Thyroid Diseases, The First Affiliated Hospital of China Medical University, Shenyang, China.
China Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Hypothyroidism in the first trimester of pregnancy (T1) has great adverse effects on mothers and foetuses. However, few studies have investigated the influence on postpartum thyroid dysfunction. This study aimed to evaluate their long-term effect on postpartum thyroid function within one year after delivery. Methods: In total, 151 women were recruited from 1496 participants and were classified as newly diagnosed subclinical hypothyroidism (SCH) in T1 (ND-SCH, n=50), previously known SCH before pregnancy (PK-SCH, n=51) and previously known overt hypothyroidism (PK-OH, n=50). Their thyroid functions were dynamically monitored from pre-conception to one-year postpartum. Results: During pregnancy, the first thyroid functions' test time in T1 were 5-8 gestational weeks. After delivery, the prevalence of postpartum thyroiditis (PPT) was comparable in women with previously known and newly diagnosed hypothyroidism [ND-SCH 62.0% Conclusion: TSH elevation at <8 gestational weeks was associated with PPT after delivery in women with known and newly diagnosed hypothyroidism. Especially for SCH patients who stopped LT4 treatment at delivery, unsatisfactory TSH level at <8 gestational weeks and near childbirth, TPOAb≥300 μIU/mL were the risk factors for LT4 retreatment in one-year postpartum.

Indexed as

AdultChinaFemaleGestational AgeHistory, 21st CenturyHormone Replacement TherapyHumansHypothyroidismPostpartum ThyroiditisPregnancyPregnancy ComplicationsPregnancy Trimester, FirstPrenatal DiagnosisPrevalencePuerperal DisordersRetrospective StudiesThyroxineearly pregnancyhypothyroidismlevothyroxinepostpartum thyroiditisthyroid-stimulating hormone

Identifiers

PMID34899598
PMCPMC8662309
OpenAlexW3216750489

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.