Evidence map›Paper›PMID 22094492›Full record

Trial reportJournal of perinatology : official journal of the California Perinatal Association2012

Randomized controlled trial of magnesium sulfate in women at risk of preterm delivery-neonatal cardiovascular effects.

M Paradisis, D A Osborn, N Evans, M Kluckow

Abstract readMulticenter StudyRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Journal of perinatology : official journal of the California Perinatal Association, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 3 pooled it
–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

8 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Antenatal Magnesium Sulfate and adverse gastrointestinal outcomes in Preterm infants-a systematic review and meta-analysis.Journal of perinatology : official journal of the California Perinatal Association · 2023
    Pooled it
  4. Review
  5. Article
  6. Article
  7. Observational
  8. 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.

M ParadisisDepartment of Neonatal Medicine, Royal North Shore Hospital, Sydney, Australia.
D A Osborn
N Evans
M Kluckow

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveUse of antenatal magnesium sulfate (MgSO(4)) may reduce cerebral palsy in infants born very preterm. Low systemic blood flow in the first day in very preterm infants has been associated with cerebral injury and adverse motor outcome. The aim was to determine the effect of MgSO(4) on systemic blood flow in preterm infants. STUDY

designRandomized trial of MgSO(4) versus saline placebo given to mothers at risk of delivery before 30 weeks gestation. Echocardiographic monitoring performed at 3 to 5, 10 to 12 and 24 h.

resultA total of 48 infants were exposed to MgSO(4) and 39 to placebo. Infants exposed to MgSO(4) were significantly more likely to receive volume expansion (42% versus 21%). Inotrope use did not differ significantly (40% versus 26%). There was no significant difference in mean lowest superior vena cava (SVC) flow or right ventricular output (RVO), or incidence of low SVC flow or RVO in the first 24 h. Infants exposed to MgSO(4) had a significantly higher heart rate and were more likely to have low SVC flow at 10 to 12 h but not other times.

conclusionAntenatal MgSO(4) produced no consistent cardiovascular effects in the infant in the first 24 h. There is no evidence from this study to suggest the mechanism by which antenatal MgSO(4) prevents cerebral palsy is through a cardiovascular effect in the newborn.

Indexed as

Cerebral PalsyEchocardiographyFemaleHemodynamicsHumansInfant, NewbornInfant, PrematureMagnesium SulfateNeuroprotective AgentsPregnancyPremature BirthRegional Blood FlowTocolytic AgentsVena Cava, SuperiorVentricular Function, RightMagnesium SulfateNeuroprotective AgentsTocolytic Agents

Identifiers

PMID22094492

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.