Evidence map›Paper›PMID 41527220›Full record

SynthesisBJOG : an international journal of obstetrics and gynaecology2026

Risk Factors and Outcomes Associated With Delayed Villous Maturation in Placenta: A Systematic Review and Meta-Analysis.

Muhammad Pradhiki Mahindra, Muhammad Pradhika Mapindra, Hadi Waheed, Owen Vaughan, John Ciaran Hutchinson, Sara L Hillman, Dimitrios Siassakos

Abstract readSystematic ReviewMeta-Analysis
In one paragraph

Synthesis in BJOG : an international journal of obstetrics and gynaecology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–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

3 citing papers in PubMed.

  1. Article
  2. Review
  3. Review
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.

Muhammad Pradhiki MahindraMaternal-Fetal Medicine Department, University College London Elizabeth Garrett Anderson Institute for Women's Health, London, UK.ORCID https://orcid.org/0000-0002-7521-9221
Muhammad Pradhika MapindraHarapan Kita National Women and Children Centre, Jakarta, Indonesia.
Hadi WaheedMaternal-Fetal Medicine Department, University College London Elizabeth Garrett Anderson Institute for Women's Health, London, UK.
Owen VaughanMaternal-Fetal Medicine Department, University College London Elizabeth Garrett Anderson Institute for Women's Health, London, UK.
John Ciaran HutchinsonDepartment of Pediatric and Perinatal Pathology, Great Ormond Street Hospital, London, UK.
Sara L HillmanMaternal-Fetal Medicine Department, University College London Elizabeth Garrett Anderson Institute for Women's Health, London, UK.
Dimitrios SiassakosMaternal-Fetal Medicine Department, University College London Elizabeth Garrett Anderson Institute for Women's Health, London, UK.ORCID https://orcid.org/0000-0002-1078-9856

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDelayed villous maturation (DVM) is a placental maturation disorder that mainly affects maternal-to-foetal oxygen transfer.

objectivesWe conducted a systematic review, meta-analysis, and sensitivity analysis exploring study heterogeneities (I SEARCH STRATEGY: Medline, EMBASE, Web of Science, and MIDIRS databases were searched from inception to December 2023. SELECTION CRITERIA: Peer-reviewed, observational studies including cohort, case-control, and cross-sectional studies reported the histopathological findings of DVM after placenta delivery. All eligible studies were included and assessed for their risk of bias using the Newcastle-Ottawa scale (NOS) for cohort and case-control studies. DATA COLLECTION AND ANALYSIS: Two reviewers independently performed the systematic article screening, bias assessment, and data extraction. Senior authors resolved the disagreement between reviewers. The risk of bias was assessed by two reviewers using NOS criteria. The random-effects model was used for meta-analysis due to heterogeneity across studies. Sensitivity analyses were performed according to the NOS risk of bias assessment and the DVM definition per the Amsterdam criteria. MAIN

resultsFifty-two eligible studies reporting DVM and linked risk factors and outcomes were included. The risk factors associated with DVM were gestational diabetes (GDM) (OR = 4.90; 95% CI = 2.98, 8.06; I

conclusionDVM is a placental abnormality associated with congenital foetal malformations and maternal dysmetabolism, including GDM, PGDM, and maternal obesity; and with adverse outcomes including stillbirth and preterm birth. In studies using Amsterdam criteria, placenta with DVM was associated with stillbirth and congenital malformations. Optimising metabolism could prevent harm to the baby.

Indexed as

PlacentaPlacenta DiseasesPlacentationFemaleHumansPregnancyRisk Factorsdelayed villous maturationdistal villous immaturitygestational diabetespregnancy outcomesstillbirth

Identifiers

PMID41527220
PMCPMC12972855

What Socratic holds

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LicenceCC BY
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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 Socratic graph.