Evidence map›Paper›PMID 29716537›Full record

ArticleBMC pregnancy and childbirth2018

Accuracy of immediate antepartum ultrasound estimated fetal weight and its impact on mode of delivery and outcome - a cohort analysis.

Johannes Stubert, Adam Peschel, Michael Bolz, Änne Glass, Bernd Gerber

Abstract read
In one paragraph

Article in BMC pregnancy and childbirth, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

12 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Characteristics associated with antenatally unidentified small-for-gestational-age fetuses: prospective cohort study nested within DESiGN randomized controlled trial.Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology · 2023
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  8. How to Reach the Best Ultrasound Performance in the Delivery Room.Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia · 2022
    Review
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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

5 authors.

Johannes StubertDepartment of Obstetrics and Gynecology, University of Rostock, Suedring 81, 18059, Rostock, Germany. johannes.stubert@uni-rostock.de.ORCID http://orcid.org/0000-0002-1284-6164
Adam PeschelDepartment of Radiology, Hospital Asklepios Klinik Barmbek, Hamburg, Germany.
Michael BolzDepartment of Obstetrics and Gynecology, University of Rostock, Suedring 81, 18059, Rostock, Germany.
Änne GlassInstitute for Biostatistics and Informatics in Medicine, University of Rostock, Rostock, Germany.
Bernd GerberDepartment of Obstetrics and Gynecology, University of Rostock, Suedring 81, 18059, Rostock, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe aim of the study was to investigate the accuracy of ultrasound-derived estimated fetal weight (EFW) and to determine its impact on management and outcome of delivery.

methodsIn this single-center cohort analysis, women with a singleton term pregnancy in the beginning stages of labor were included. Women with immediately antepartum EFW (N = 492) were compared to women without ultrasound (N = 515).

resultsEFW was correct (deviation from birth weight ≤ 10%) in 72.2% (355/492) of patients with fetal biometry; 19.7% (97/492) were underestimated, and 8.1% (40/492) were overestimated. Newborns with a lower birth weight were more frequently overestimated, and newborns with higher birth weight were more frequently underestimated. The mean difference between EFW and real birth weight was - 114.5 g (standard deviation ±313 g, 95% confidence interval 87.1-142.0). The rate of non-reassuring fetal heart tracing (9.8% vs. 1.9%, P < 0.001) and of caesarean delivery (9.1% vs. 5.0%, P = 0.013) was higher in women with EFW. Overestimation was associated with an increased risk for delivery by caesarean section (odds ratio 2.80; 95% confidence interval 1.2-6.5, P = 0.017). After adjustment, EFW remained associated with increased non-reassuring fetal heart tracing (odds ratio 4.73; 95% confidence interval 2.3-9.6) and caesarean delivery (odds ratio 1.86; 95% confidence interval 1.1-3.1). The incidence of perineal tears of grade 3/4, shoulder dystocia, postnatal depression and neonatal acidosis did not differ between groups.

conclusionsAntepartum ultrasound-derived EFW does not improve maternal and fetal outcome and is therefore not recommended.

Indexed as

Birth WeightFetal WeightUltrasonographyAcidosisAdultCesarean SectionCohort StudiesDelivery, ObstetricDepression, PostpartumDystociaFemaleFetal DistressHumansInfant, NewbornLacerationsPerineumAccuracyBirth weightFetal biometryFetal weight estimationPrenatal ultrasonography

Identifiers

PMID29716537
PMCPMC5930666

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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.