Evidence map›Paper›PMID 33875522›Full record

Observational studyArchives of disease in childhood. Fetal and neonatal edition2021

Can EEG accurately predict 2-year neurodevelopmental outcome for preterm infants?

Rhodri O Lloyd, John M O'Toole, Vicki Livingstone, Peter M Filan, Geraldine B Boylan

Abstract readObservational Study
In one paragraph

Observational study in Archives of disease in childhood. Fetal and neonatal edition, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Neurodevelopmental forecasting in preterms: aEEG at 32 weeks vs. MRI at term in predicting 2-year outcomes.Journal of perinatology : official journal of the California Perinatal Association · 2026
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  9. Dysmaturation of sleep state and electroencephalographic activity after hypoxia-ischaemia in preterm fetal sheep.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2024
    Article
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  11. [A preliminary study on a new method for evaluating brain maturation in preterm infants].Zhongguo dang dai er ke za zhi = Chinese journal of contemporary pediatrics · 2023
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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

5 authors.

Rhodri O LloydINFANT Research Centre, University College Cork, Ireland.ORCID http://orcid.org/0000-0003-4516-2532
John M O'TooleINFANT Research Centre, University College Cork, Ireland.
Vicki LivingstoneINFANT Research Centre, University College Cork, Ireland.
Peter M FilanINFANT Research Centre, University College Cork, Ireland.
Geraldine B BoylanINFANT Research Centre, University College Cork, Ireland g.boylan@ucc.ie.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveEstablish if serial, multichannel video electroencephalography (EEG) in preterm infants can accurately predict 2-year neurodevelopmental outcome. DESIGN AND PATIENTS: EEGs were recorded at three time points over the neonatal course for infants <32 weeks' gestational age (GA). Monitoring commenced soon after birth and continued over the first 3 days. EEGs were repeated at approximately 32 and 35 weeks' postmenstrual age (PMA). EEG scores were based on an age-specific grading scheme. Clinical score of neonatal morbidity risk and cranial ultrasound imaging were completed.

settingNeonatal intensive care unit at Cork University Maternity Hospital, Ireland.

main outcome measuresBayley Scales of Infant Development III at 2 years' corrected age.

resultsSixty-seven infants were prospectively enrolled in the study and 57 had follow-up available (median GA 28.9 weeks (IQR 26.5-30.4)). Forty had normal outcome, 17 had abnormal outcome/died. All EEG time points were individually predictive of abnormal outcome; however, the 35-week EEG performed best. The area under the receiver operating characteristic curve (AUC) for this time point was 0.91 (95% CI 0.83 to 1), p<0.001. Comparatively, the clinical course AUC was 0.68 (95% CI 0.54 to 0.80, p=0.015), while abnormal cranial ultrasound was 0.58 (95% CI 0.41 to 0.75, p=0.342).

conclusionMultichannel EEG is a strong predictor of 2-year outcome in preterm infants particularly when recorded around 35 weeks' PMA. Infants at high risk of brain injury may benefit from early postnatal EEG recording which, if normal, is reassuring. Postnatal clinical complications can contribute to poor outcome; therefore, we state that a later EEG around 35 weeks has a role to play in prognostication.

Indexed as

Child, PreschoolDevelopmental DisabilitiesElectroencephalographyFollow-Up StudiesHumansInfant, NewbornInfant, PrematureIntensive Care, NeonatalPrognosisProspective StudiesTime Factorsneonatologyneurology

Identifiers

PMID33875522
PMCPMC8394766

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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 OpenQuestion graph.