Evidence map›Paper›PMID 32912152›Full record

ArticleBMC women's health2020

The impact of pre-evacuation ultrasound examination in histologically confirmed hydatidiform mole in missed abortion.

Yunhui Tang, Chenqi Zhu, Chen Zhu, Feng Liang, Arier Lee, Xiaoying Yao, Qi Chen

Open access · goldAbstract read
In one paragraph

Article in BMC women's health, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.7field-weighted citation impact, top 25% 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

5 citing papers in PubMed, 7 citations in OpenAlex.

  1. Diagnosis and Surgical Treatment of Hydatidiform Mole.Diagnostics (Basel, Switzerland) · 2025
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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

7 authors at 3 institutions in 2 countries.

Yunhui TangDepartment of Family Planning, The Hospital of Obstetrics & Gynaecology, Fudan University, 419 Fangxie Road, Shanghai, China.
Chenqi ZhuDepartment of Family Planning, The Hospital of Obstetrics & Gynaecology, Fudan University, 419 Fangxie Road, Shanghai, China.
Chen ZhuDepartment of Family Planning, The Hospital of Obstetrics & Gynaecology, Fudan University, 419 Fangxie Road, Shanghai, China.
Feng LiangDepartment of Gynaecology, Maternity and Child Health Care of ZaoZhuang, ZaoZhuang, Shandong, China.
Arier LeeSection of Epidemiology and Biostatistics, School of Population Health, The University of Auckland, Auckland, New Zealand.
Xiaoying YaoDepartment of Family Planning, The Hospital of Obstetrics & Gynaecology, Fudan University, 419 Fangxie Road, Shanghai, China. q.chen@auckland.ac.nz.
Qi ChenThe Department of Obstetrics & Gynaecology, The University of Auckland, Auckland, New Zealand.
Obstetrics and Gynecology Hospital of Fudan University · CNUniversity of Auckland · NZZaozhuang Municipal Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundEarly detecting hydatidiform mole in missed abortion is challenge. In this retrospective observational study, we analysed the sensitivity of detecting hydatidiform mole by pre-evacuation ultrasound examination or naked eye after surgical uterine evacuation in missed abortion.

methodsData on 577 cases with histologically confirmed hydatidiform mole were collected over a 10-year period and analysed. Data included serum β-hCG level before surgical evacuation, the ultrasound examination findings, histology findings and naked eye findings. In addition, serum β-hCG level on 2398 cases without hydatidiform mole was also collected.

resultsThe median maternal age was 29 (range, 17-53) years and the range of gestational age was 6 to 12 weeks. The sensitivity of detecting hydatidiform mole by ultrasound examination or by naked eye was 25% or 60% respectively. This sensitivity was not increased by the combination of ultrasound and naked eye. There was no difference in the sensitivity of detecting subtypes of hydatidiform mole. The higher β-hCG level was seen in cases with hydatidiform mole, compared to cases without hydatidiform mole. However, there was a lot of overlap in the distributions of β-hCG between the two groups.

conclusionsIn this study, we found lower sensitivity of detecting hydatidiform mole by ultrasound in missed abortion. β-hCG level was higher in hydatidiform mole than in non- hydatidiform mole in missed abortion. Although higher sensitivity of detecting hydatidiform mole is seen by naked eye (60%), in order to minimise missed opportunity of detecting hydatidiform mole, our study suggests that routine histopathological examination is necessary in missed abortion.

Indexed as

Abortion, MissedAdolescentAdultChinaChorionic Gonadotropin, beta Subunit, HumanFemaleGestational AgeHumansHydatidiform MoleMiddle AgedPregnancyRetrospective StudiesUltrasonography, PrenatalUterine NeoplasmsYoung AdultChorionic Gonadotropin, beta Subunit, HumanComplete hydatidiform moleHydatidiform molePartial hydatidiform moleUltrasoundβ-hCG

Identifiers

PMID32912152
PMCPMC7488519
OpenAlexW3085293907

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Registered trials

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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.