Evidence map›Paper›PMID 28701933›Full record

ArticleFrontiers in human neuroscience2017

Network Efficiency and Posterior Alpha Patterns Are Markers of Recovery from General Anesthesia: A High-Density Electroencephalography Study in Healthy Volunteers.

Stefanie Blain-Moraes, Vijay Tarnal, Giancarlo Vanini, Tarik Bel-Behar, Ellen Janke, Paul Picton, Goodarz Golmirzaie, Ben J A Palanca, Michael S Avidan, Max B Kelz and 1 more

Open access · goldAbstract read
In one paragraph

Article in Frontiers in human neuroscience, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 2 pooled it
3.4field-weighted citation impact, top 7% 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

35 citing papers in PubMed, 2 syntheses or guidelines pooled it, 70 citations in OpenAlex.

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  6. List2Net: Linking multiple lists of biological data in a network context.Computational and structural biotechnology journal · 2024
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  14. A Real-Time Neurophysiologic Stress Test for the Aging Brain: Novel Perioperative and ICU Applications of EEG in Older Surgical Patients.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2023
    Review
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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

11 authors at 4 institutions in 2 countries.

Stefanie Blain-MoraesSchool of Physical and Occupational Therapy, Faculty of Medicine, McGill University.
Vijay TarnalCenter for Consciousness Science, University of Michigan Medical SchoolAnn Arbor, MI, United States.
Giancarlo VaniniCenter for Consciousness Science, University of Michigan Medical SchoolAnn Arbor, MI, United States.
Tarik Bel-BeharCenter for Consciousness Science, University of Michigan Medical SchoolAnn Arbor, MI, United States.
Ellen JankeCenter for Consciousness Science, University of Michigan Medical SchoolAnn Arbor, MI, United States.
Paul PictonCenter for Consciousness Science, University of Michigan Medical SchoolAnn Arbor, MI, United States.
Goodarz GolmirzaieCenter for Consciousness Science, University of Michigan Medical SchoolAnn Arbor, MI, United States.
Ben J A PalancaDepartment of Anesthesiology, Washington University School of MedicineSt. Louis, MO, United States.
Michael S AvidanDepartment of Anesthesiology, Washington University School of MedicineSt. Louis, MO, United States.
Max B KelzDepartment of Anesthesiology, University of PennsylvaniaPhiladelphia, PA, United States.
George A MashourCenter for Consciousness Science, University of Michigan Medical SchoolAnn Arbor, MI, United States.
University of Michigan–Ann Arbor · USWashington University in St. Louis · USMcGill University · CAUniversity of Pennsylvania · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Recent studies have investigated local oscillations, long-range connectivity, and global network patterns to identify neural changes associated with anesthetic-induced unconsciousness. These studies typically employ anesthetic protocols that either just cross the threshold of unconsciousness, or induce deep unconsciousness for a brief period of time-neither of which models general anesthesia for major surgery. To study neural patterns of unconsciousness and recovery in a clinically-relevant context, we used a realistic anesthetic regimen to induce and maintain unconsciousness in eight healthy participants for 3 h. High-density electroencephalogram (EEG) was acquired throughout and for another 3 h after emergence. Seven epochs of 5-min eyes-closed resting states were extracted from the data at baseline as well as 30, 60, 90, 120, 150, and 180-min post-emergence. Additionally, 5-min epochs were extracted during induction, unconsciousness, and immediately prior to recovery of consciousness, for a total of 10 analysis epochs. The EEG data in each epoch were analyzed using source-localized spectral analysis, phase-lag index, and graph theoretical techniques. Posterior alpha power was significantly depressed during unconsciousness, and gradually approached baseline levels over the 3 h recovery period. Phase-lag index did not distinguish between states of consciousness or stages of recovery. Network efficiency was significantly depressed and network clustering coefficient was significantly increased during unconsciousness; these graph theoretical measures returned to baseline during the 3 h recovery period. Posterior alpha power may be a potential biomarker for normal recovery of functional brain networks after general anesthesia.

Indexed as

alpha rhythmcognitionconsciousnesselectroencephalographygeneral anesthesiagraph theory

Identifiers

PMID28701933
PMCPMC5487412
OpenAlexW2730012035

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.