Evidence map›Paper›PMID 41787671›Full record

Observational studyPaediatric anaesthesia2026

EEG Dynamics in Children Before, During and After General Anesthesia.

Maximilian Markus, Feidias Panagiotou, Claudia Spies, Susanne Koch

Registry-linked trialAbstract readObservational Study
In one paragraph

Observational study in Paediatric anaesthesia, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02481999 (Pre- and Postoperative EEG-Monitoring for Children Aged From 0,5 to 8 Years), which is not on this map. Cited by 1 paper.

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

NCT02481999 terminatednot on this map

Pre- and Postoperative EEG-Monitoring for Children Aged From 0,5 to 8 Years

TypeobservationalSponsorCharite University, Berlin, GermanyRan2015 to 2017Enrolled168ConditionsAnesthesia
3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Observational
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.

Maximilian MarkusDepartment of Anaesthesiology and Intensive Care Medicine (CCM, CVK), Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.ORCID 0000-0002-7449-4248
Feidias PanagiotouDepartment of Anaesthesiology and Intensive Care Medicine (CCM, CVK), Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.
Claudia SpiesDepartment of Anaesthesiology and Intensive Care Medicine (CCM, CVK), Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.ORCID 0000-0002-1062-0495
Susanne KochDepartment of Anaesthesiology and Intensive Care Medicine (CCM, CVK), Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.ORCID 0000-0001-5663-7447

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAge-specific EEG signatures during anesthesia are described in pediatrics, and perioperative monitoring is increasingly advocated; yet most indices and algorithms derive from adult data and may not generalize to early development.

aimsThe purpose of this study was to characterize perioperative frontal EEGs in young children younger than 8 years.

methodsA total of 147 frontal EEGs from children ranging from 1 month to 8 years of age were recorded prospectively under general anesthesia at Charité-Campus Virchow Klinik (CVK). For data acquisition, the Narcotrend Monitor was used, and the raw EEG files were further analyzed in their frequency bands. The patient cohort was divided into four age groups (0-5, 6-11, 12-23, and > 24 months), and EEG signatures were compared between the age groups.

resultsDelta activity is the predominant frequency in all age groups already in the awake state before induction of anesthesia, with a step increase at loss of consciousness, which is more pronounced in older children. Intraoperatively, alpha- and beta-activity emerge at the age of 6 months and are greater in the older age groups. Infants (0-5 months) remain with a high amount of Delta activity intraoperatively. With the return of consciousness, the faster frequencies gradually decrease, and the EEG is characterized again by a predominant delta-activity in all age groups.

conclusionsIn this study, we characterized differences in the perioperative EEG signatures of children from 1 month to 8 years from the preoperative awake state during induction and general anesthesia until they regained consciousness from general anesthesia. The EEG readouts differ across age groups, and age-adapted monitoring systems are needed to protect this vulnerable patient group from over- and undersedation.

trial registrationThis study was approved by the Charité-University Medicine Berlin's ethics committee (EA2/027/15) and was registered at clinicaltrials.gov (23rd of June 2015/NCT02481999).

Indexed as

Anesthesia, GeneralElectroencephalographyAge FactorsChildChild, PreschoolFemaleHumansInfantInfant, NewbornMaleMonitoring, IntraoperativePediatric AnesthesiaProspective StudiesEEGneuromonitoringpediatric anesthesia

Identifiers

PMID41787671
PMCPMC13161511

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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.