Evidence map›Paper›PMID 27177813›Full record

ArticleClinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology2016

Estimating functional brain maturity in very and extremely preterm neonates using automated analysis of the electroencephalogram.

J M O'Toole, G B Boylan, S Vanhatalo, N J Stevenson

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In one paragraph

Article in Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
20.3field-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

22 citing papers in PubMed, 1 synthesis or guideline pooled it, 63 citations in OpenAlex.

  1. Pooled it
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  7. Resting state electroencephalographic brain activity in neonates can predict age and is indicative of neurodevelopmental outcome.Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2024
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  8. Sensory event-related potential morphology predicts age in premature infants.Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2024
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  9. Observational
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  13. Grading the severity of hypoxic-ischemic encephalopathy in newborn EEG using a convolutional neural network.Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference · 2020
    Article
  14. Automated cot-side tracking of functional brain age in preterm infants.Annals of clinical and translational neurology · 2020
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 2 countries.

J M O'TooleNeonatal Brain Research Group, Irish Centre for Fetal and Neonatal Translational Research, University College Cork, Ireland.
G B BoylanNeonatal Brain Research Group, Irish Centre for Fetal and Neonatal Translational Research, University College Cork, Ireland.
S VanhataloDepartment of Clinical Neurophysiology, Children's Hospital, HUS Medical Imaging Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.
N J StevensonNeonatal Brain Research Group, Irish Centre for Fetal and Neonatal Translational Research, University College Cork, Ireland; Clinicum, University of Helsinki, Finland. Electronic address: nathan.stevenson@helsinki.fi.
University College Cork · IEUniversity of Helsinki · FI

Funding

Wellcome Trust 085249Wellcome Trust 098983
6 · The paper itself

Abstract

objectiveTo develop an automated estimate of EEG maturational age (EMA) for preterm neonates.

methodsThe EMA estimator was based on the analysis of hourly epochs of EEG from 49 neonates with gestational age (GA) ranging from 23 to 32weeks. Neonates had appropriate EEG for GA based on visual interpretation of the EEG. The EMA estimator used a linear combination (support vector regression) of a subset of 41 features based on amplitude, temporal and spatial characteristics of EEG segments. Estimator performance was measured with the mean square error (MSE), standard deviation of the estimate (SD) and the percentage error (SE) between the known GA and estimated EMA.

resultsThe EMA estimator provided an unbiased estimate of EMA with a MSE of 82days (SD=9.1days; SE=4.8%) which was significantly lower than a nominal reading (the mean GA in the dataset; MSE of 267days, SD of 16.3days, SE=8.4%: p<0.001). The EMA estimator with the lowest MSE used amplitude, spatial and temporal EEG characteristics.

conclusionsThe proposed automated EMA estimator provides an accurate estimate of EMA in early preterm neonates. SIGNIFICANCE: Automated analysis of the EEG provides a widely accessible, noninvasive and continuous assessment of functional brain maturity.

Indexed as

BrainElectroencephalographyFemaleHumansInfant, Extremely PrematureInfant, NewbornInfant, PrematureMaleSignal Processing, Computer-AssistedAutomated EEG analysisClinical neurophysiologyDysmaturityPreterm neonateSupport vector regression

Identifiers

PMID27177813
OpenAlexW2337013847

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Registered trials

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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.