Evidence map›Paper›PMID 30870445›Full record

Observational studyPloS one2019

Lactate acidosis and cardiac output during initial therapeutic cooling in asphyxiated newborn infants.

Vibeke Ramsgaard Eriksen, Simon Trautner, Gitte Holst Hahn, Gorm Greisen

Open access · goldAbstract readObservational Study
In one paragraph

Observational study in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
3.1field-weighted citation impact, top 9% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 20 citations in OpenAlex.

  1. Guideline
  2. Hemodynamics in infants with hypoxemic ischemic encephalopathy: pathophysiology and beyond.Journal of perinatology : official journal of the California Perinatal Association · 2026
    Review
  3. Article
  4. Article
  5. Observational
  6. Non-invasive continuous cardiac output monitoring in infants with hypoxic ischaemic encephalopathy.Journal of perinatology : official journal of the California Perinatal Association · 2022
    Observational
  7. Article
  8. Observational
  9. Article
  10. Review
  11. Review
  12. Article
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

4 authors at 1 institution in 1 country.

Vibeke Ramsgaard EriksenDepartment of Neonatology, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.ORCID 0000-0002-8544-8626
Simon TrautnerDepartment of Neonatology, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.
Gitte Holst HahnDepartment of Neonatology, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.
Gorm GreisenDepartment of Neonatology, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.
Copenhagen University Hospital · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimWe hypothesized that compromised cardiac output in asphyxiated infants may influence on the rate of disappearance of lactate due to insufficient perfusion.

methodsThe study was a prospective, observational study, where infants with perinatal asphyxia who met the criteria for therapeutic hypothermia were included. Cardiac output, stroke volume and heart rate were measured by electrical velocimetry in 15 newborn infants with perinatal asphyxia during the first six hours of active therapeutic hypothermia. Results from routine blood samples were collected retrospectively. Cardiac parameters were also measured in 10 healthy, term infants after caesarian section. Cardiac parameters were compared between the asphyxiated group and the control group prior to and during hypothermia. Rate of disappearance of lactate was correlated to cardiac output in the asphyxiated infants.

resultsCardiac output was stable in the healthy infants from 0.5 to 6 hours postnatally. The infants with perinatal asphyxia had lower cardiac output prior to and during therapeutic hypothermia compared to the control group. Rate of disappearance of lactate was not related to cardiac output.

conclusionAn association between disappearance of lactate acidosis and low cardiac output was not confirmed. A low rate of disappearance of lactate may rather be an indicator of organ injury due to asphyxia.

Indexed as

Asphyxia NeonatorumHypothermia, InducedAcidosis, LacticCardiac OutputFemaleHumansInfant, NewbornLactic AcidMaleProspective StudiesLactic Acid

Identifiers

PMID30870445
PMCPMC6417718
OpenAlexW2921389142

What OpenQuestion holds

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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.