Evidence map›Paper›PMID 27838884›Full record

SynthesisMolecular diagnosis & therapy2017

Cell-Free Fetal DNA for the Prediction of Pre-Eclampsia at the First and Second Trimesters: A Systematic Review and Meta-Analysis.

Elena Contro, Dalila Bernabini, Antonio Farina

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Molecular diagnosis & therapy, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 2 pooled it
13.7field-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

21 citing papers in PubMed, 2 syntheses or guidelines pooled it, 57 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Cell-free DNA as a potential biomarker for preeclampsia.Expert review of molecular diagnostics · 2021
    Article
  14. Article
  15. Article
  16. Article
  17. Exosomes-Associated DNA-New Marker in Pregnancy Complications?International journal of molecular sciences · 2019
    Review
  18. Article
  19. Maternal-fetal cross talk through cell-free fetal DNA, telomere shortening, microchimerism, and inflammation.American journal of reproductive immunology (New York, N.Y. : 1989) · 2018
    Review
  20. Cell-free fetal DNA and spontaneous preterm birth.Reproduction (Cambridge, England) · 2018
    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

3 authors at 1 institution in 1 country.

Elena ControDivision of Obstetrics and Gynecology, Department of Medicine and Surgery (DIMEC), University of Bologna, Bologna, Italy.
Dalila BernabiniDivision of Obstetrics and Gynecology, Department of Medicine and Surgery (DIMEC), University of Bologna, Bologna, Italy.
Antonio FarinaDivision of Obstetrics and Gynecology, Department of Medicine and Surgery (DIMEC), University of Bologna, Bologna, Italy. antonio.farina@unibo.it.ORCID 0000-0002-6862-1810
University of Bologna · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveA systematic review and pooled analysis was carried out to estimate whether the increase in the quantity of cell-free fetal DNA (cffDNA) before the onset of pre-eclampsia (PE) can predict the disease using real-time polymerase chain reaction (PCR).

methodA comprehensive literature search of the PubMed, Scopus, and Web of Knowledge databases was conducted to identify relevant studies that included evaluated cffDNA levels in pregnant women before the clinical onset of PE. A simulation model was generated to calculate the detection rate (DR) of cffDNA for PE, and a random variable was generated using the same number of cases and same statistical measurements of central tendency and dispersion as those reported in the papers considered for the analysis. Simulation of the receiver operating characteristic (ROC) curves was also carried out.

resultsFour studies (82 cases and 1315 controls) evaluated cffDNA in early-onset PE, with DRs of 18 and 68.8% at 11-13 and 17-28 weeks, respectively, at a false positive rate of 10%. Nine studies (including two considered for early-onset PE) encompassing 376 cases and 1270 controls were available for the evaluation of 'any PE'. At 11-14 weeks no significant DR was found, while at 15-28 weeks the DR was 37%.

conclusionCffDNA quantification is a marker for predicting the development of both early-onset PE and 'any PE'; however, it can probably only be used from the beginning of the second trimester, otherwise its predictive value is burdened with a DR that is too low or not significant. Due to the heterogeneity and difficulty in interpreting the published data, no conclusion regarding the statistical and clinical relevance, especially for screening 'any PE', can be made at present.

Indexed as

Pregnancy Trimester, FirstPregnancy Trimester, SecondBiomarkersBody Mass IndexCase-Control StudiesDNAFemaleFetusHumansPre-EclampsiaPregnancyPrenatal DiagnosisROC CurveSeverity of Illness IndexBiomarkersDNA

Identifiers

PMID27838884
OpenAlexW2554989468

What OpenQuestion holds

Textmetadata
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.