Evidence map›Paper›PMID 37336159›Full record

ArticlePlacenta2023

Patterns of placental pathology associated with preeclampsia.

Alexa A Freedman, Sunitha Suresh, Linda M Ernst

Open access · greenAbstract read
In one paragraph

Article in Placenta, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
5.9field-weighted citation impact, top 3% 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

20 citing papers in PubMed, 20 citations in OpenAlex.

  1. Trial
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  10. Determinants of Placental Versus Maternal Preeclampsia.Hypertension (Dallas, Tex. : 1979) · 2026
    Article
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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

3 authors at 1 institution in 1 country.

Alexa A FreedmanDepartment of Obstetrics and Gynecology, NorthShore University HealthSystem, Evanston, IL, United States. Electronic address: afreedman@northshore.org.
Sunitha SureshDepartment of Obstetrics and Gynecology, NorthShore University HealthSystem, Evanston, IL, United States.
Linda M ErnstDepartment of Pathology and Laboratory Medicine, NorthShore University HealthSystem, Evanston, IL, United States; Department of Pathology, University of Chicago Pritzker School of Medicine, Chicago, IL, United States.
NorthShore University HealthSystem · US

Funding

Northwestern University Clinical and Translational Science Institute (NUCATS)UL1TR001422 · NCATS · NORTHWESTERN UNIVERSITY AT CHICAGO · PI D'AQUILA, RICHARD · 2015 to 2023
$56.8M
Maternal psychological stress, adverse birth outcomes, and the role of inflammatory mediators in the placentaF32HD100076 · NICHD · NORTHWESTERN UNIVERSITY · PI FREEDMAN, ALEXA · 2019 to 2021
$192k
NCATS NIH HHS UL1 TR001422NICHD NIH HHS F32 HD100076
6 · The paper itself

Abstract

introductionMaternal vascular malperfusion (MVM) is commonly observed in early onset preeclampsia, but less prevalent in late onset preeclampsia. The purpose of our analysis was to investigate patterns of placental pathology in preeclampsia.

methodsElectronic health records for all singleton livebirths from 2009 to 2018 at a single institution with a diagnosis of preeclampsia were obtained. Text searching was used to obtain placental data from pathology reports, including lesions of MVM, fetal vascular malperfusion (FVM), chronic inflammation (CI), and acute inflammation (AI). Placental pathology was compared based on timing of delivery and latent class analysis (LCA) was used to investigate subtypes of preeclampsia based on 22 placental variables.

results728 patients were included in the analysis. Prevalence of MVM decreased with advancing gestation (95.4% at <34 weeks, 69.8% at 34-36 weeks, and 50%, ≥37 weeks; p < 0.01). LCA identified five classes based on placental pathology: (1) high grade MVM, (2) CI and FVM, (3) low grade MVM, (4) AI, (5) other. Preterm birth varied across the classes (p < 0.01), with the highest prevalence observed among the classes characterized by MVM (high grade: 87.6%; low grade: 63.0%) and the lowest prevalence among the class characterized by AI (23.5%). DISCUSSION: Placental pathology in preeclampsia differs based on gestational age at delivery with MVM seen in nearly all early onset preeclampsia cases. Latent classes largely grouped by previously defined patterns of placental injury (MVM, CI, FVM, AI), and again revealed the highest likelihood of preterm birth in classes characterized by MVM. Results suggest there may be multiple mechanisms leading to the clinical manifestations of preeclampsia.

Indexed as

Pre-EclampsiaPremature BirthFemaleHumansInfant, NewbornPlacentaPregnancyPregnancy, MultiplePregnancy OutcomeChronic inflammationLatent class analysisMaternal vascular malperfusionPlacental pathologyPreeclampsia

Identifiers

PMID37336159
PMCPMC10527086
OpenAlexW4380361793

What OpenQuestion holds

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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.