Evidence map›Paper›PMID 21848483›Full record

ArticleJournal of perinatal medicine2011

Placental lesions associated with maternal underperfusion are more frequent in early-onset than in late-onset preeclampsia.

Giovanna Ogge, Tinnakorn Chaiworapongsa, Roberto Romero, Youssef Hussein, Juan Pedro Kusanovic, Lami Yeo, Chong Jai Kim, Sonia S Hassan

Open access · greenAbstract read
In one paragraph

Article in Journal of perinatal medicine, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 108 papers.

0numbers the graph read from it
0cells of the map it votes in
108citing papers in PubMed
20.4field-weighted citation impact, top 1% 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

108 citing papers in PubMed, 291 citations in OpenAlex.

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  6. Increased oxidized low-density lipoprotein causes blood-brain barrier disruption in early-onset preeclampsia through LOX-1.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2013
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  16. Association ofInternational journal of molecular sciences · 2025
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  19. Longitudinal fetal growth parameters in women at high risk for pre-eclampsia.Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology · 2025
    Article
  20. Potential Molecular Biomarkers of Preeclampsia-A Pilot Study.International journal of molecular sciences · 2025
    Article

48 more citing papers are in PubMed but not listed here.

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

8 authors at 1 institution in 1 country.

Giovanna OggePerinatology Research Branch, NICHD/NIH/DHHS, Detroit, MI, USA.
Tinnakorn Chaiworapongsa
Roberto Romero
Youssef Hussein
Juan Pedro Kusanovic
Lami Yeo
Chong Jai Kim
Sonia S Hassan
United States Department of Health and Human Services · US

Funding

The Role Of Subclinical Infection And Cytokines In Preterm ParturitionZIAHD002400 · NICHD · EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH & HUMAN DEVELOPMENT · PI ROMERO, ROBERTO · 2009 to 2025
$254.4M
Intramural NIH HHS ZIA HD002400
6 · The paper itself

Abstract

objectivePreeclampsia (PE) has been classified into early- and late-onset disease. These two phenotypic variants of PE have been proposed to have a different pathophysiology. However, the gestational age cut-off to define "early" vs. "late" PE has varied among studies. The objective of this investigation was to determine the prevalence of lesions consistent with maternal underperfusion of the placenta in patients with PE as a function of gestational age. STUDY

designA nested case-control study of 8307 singleton pregnant women who deliver after 20 weeks of gestation was constructed based on a cohort. Cases were defined as those with PE (n=910); controls were pregnant women who did not have a hypertensive disorder in pregnancy (n=7397). The frequency of maternal underperfusion of the placenta (according to the criteria of the Society for Pediatric Pathology) was compared between the two groups. Logistic regression was used for analysis. Estimated relative risks (RRs) were calculated from odds ratios.

results1) The prevalence of lesions consistent with maternal underperfusion was higher in patients with PE than in the control group [43.3% vs. 15.9%, unadjusted odds ratio 4.0 (95% CI 3.5-4.7); P<0.001]; 2) the estimated RR of maternal underperfusion lesions in PE was higher than in the control group [RR=2.8 (95% CI 2.5-3.0)]; 3) the lower the gestational age at delivery, the higher the RR for these lesions; 4) early-onset PE, regardless of the gestational age used to define it (<32, 33, 34, 35 or 37 weeks) had a significantly higher frequency of placental lesions consistent with maternal underperfusion than late-onset PE (P<0.001 for all).

conclusions1) The earlier the gestational age of preeclampsia at delivery, the higher the frequency of placental lesions consistent with maternal underperfusion; 2) our data suggest that demonstrable placental involvement as determined by pathologic examination differs in early- and late-onset preeclampsia; and 3) this phenomenon appears to be a continuum, and we could not identify a clear and unambiguous gestational age at which lesions consistent with underperfusion would not be present.

Indexed as

AdolescentAdultCase-Control StudiesFemaleHumansInfant, NewbornIschemiaMiddle AgedPlacentaPre-EclampsiaPregnancyPregnancy Trimester, SecondPregnancy Trimester, ThirdRetrospective StudiesYoung Adult

Identifiers

PMID21848483
PMCPMC3213694
OpenAlexW2064122706

What OpenQuestion holds

Textmetadata
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Read underepoch 390

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.