Evidence map›Paper›PMID 37152310›Full record

ArticleFrontiers in pediatrics2023

Fetal oxygenation in the last weeks of pregnancy evaluated through the umbilical cord blood gas analysis.

Luca Filippi, Rosa Teresa Scaramuzzo, Francesca Pascarella, Alessandro Pini, Riccardo Morganti, Maurizio Cammalleri, Paola Bagnoli, Massimiliano Ciantelli

Open access · goldAbstract read
In one paragraph

Article in Frontiers in pediatrics, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
4.9field-weighted citation impact, top 4% 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

16 citing papers in PubMed, 19 citations in OpenAlex.

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  8. βMedicinal research reviews · 2025
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  9. Variable surface antigen expression, virulence, and persistent infection byMicrobiology and molecular biology reviews : MMBR · 2025
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  15. Article
  16. In Utero Extrahepatic Bile Duct Damage and Repair: Implications for Biliary Atresia.Pediatric and developmental pathology : the official journal of the Society for Pediatric Pathology and the Paediatric Pathology Society
    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

8 authors at 3 institutions in 1 country.

Luca FilippiDepartment of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy.
Rosa Teresa ScaramuzzoNeonatology Unit, Azienda Ospedaliero-Universitaria Pisana, Pisa, Italy.
Francesca PascarellaNeonatology Unit, Azienda Ospedaliero-Universitaria Pisana, Pisa, Italy.
Alessandro PiniDepartment of Experimental and Clinical Medicine, University of Florence, Florence, Italy.
Riccardo MorgantiSection of Statistics, Azienda Ospedaliero-Universitaria Pisana, Pisa, Italy.
Maurizio CammalleriUnit of General Physiology, Department of Biology, University of Pisa, Pisa, Italy.
Paola BagnoliUnit of General Physiology, Department of Biology, University of Pisa, Pisa, Italy.
Massimiliano CiantelliNeonatology Unit, Azienda Ospedaliero-Universitaria Pisana, Pisa, Italy.
Azienda Ospedaliera Universitaria Pisana · ITUniversity of Pisa · ITUniversity of Florence · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Introduction: Embryo and fetus grow and mature over the first trimester of pregnancy in a dynamic hypoxic environment, where placenta development assures an increased oxygen availability. However, it is unclear whether and how oxygenation changes in the later trimesters and, more specifically, in the last weeks of pregnancy. Methods: Observational study that evaluated the gas analysis of the umbilical cord blood collected from a cohort of healthy newborns with gestational age ≥37 weeks. Umbilical venous and arterial oxygen levels as well as fetal oxygen extraction were calculated to establish whether oxygenation level changes over the last weeks of pregnancy. In addition, fetal lactate, and carbon dioxide production were analyzed to establish whether oxygen oscillations may induce metabolic effects Results: This study demonstrates a progressive increase in fetal oxygenation levels from the 37th to the 41st weeks of gestation (mean venous PaO Conclusion: This study confirms that fetuses grow in a hypoxic environment that becomes progressively less hypoxic in the last weeks of gestation. The increased oxygen availability seems to favor aerobic metabolic shift during the last weeks of intrauterine life; we hypothesize that this environmental change may have implications for fetal maturation during intrauterine life.

Indexed as

differentiationfetal hypoxiaintrauterine hypoxianewbornwarburg effect

Identifiers

PMID37152310
PMCPMC10160648
OpenAlexW4366775396

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.