Evidence map›Paper›PMID 34354282›Full record

ArticleNature neuroscience2021

Neural fragility as an EEG marker of the seizure onset zone.

Adam Li, Chester Huynh, Zachary Fitzgerald, Iahn Cajigas, Damian Brusko, Jonathan Jagid, Angel O Claudio, Andres M Kanner, Jennifer Hopp, Stephanie Chen and 9 more

Erratum issuedAbstract read
In one paragraph

Article in Nature neuroscience, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 67 papers.

0numbers the graph read from it
0cells of the map it votes in
67citing 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.

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

67 citing papers in PubMed.

  1. Article
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  7. Review
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  11. Review
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  15. Adaptation modulates effective connectivity and network stability.Frontiers in computational neuroscience · 2026
    Article
  16. Article
  17. Article
  18. Short-Term Modulation of Epileptic Network with Low-Frequency Thalamic Stimulation.medRxiv : the preprint server for health sciences · 2025
    Article
  19. Article
  20. Article

7 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

19 authors.

Adam LiDepartment of Biomedical Engineering, Johns Hopkins University, Baltimore, MD, USA. adam2392@gmail.com.ORCID http://orcid.org/0000-0001-8421-365X
Chester HuynhDepartment of Biomedical Engineering, Johns Hopkins University, Baltimore, MD, USA.
Zachary FitzgeraldEpilepsy Center, Cleveland Clinic, Cleveland, OH, USA.
Iahn CajigasDepartment of Neurosurgery, University of Miami Miller School of Medicine, Miami, FL, USA.ORCID http://orcid.org/0000-0002-5808-453X
Damian BruskoDepartment of Neurosurgery, University of Miami Miller School of Medicine, Miami, FL, USA.
Jonathan JagidDepartment of Neurosurgery, University of Miami Miller School of Medicine, Miami, FL, USA.ORCID http://orcid.org/0000-0001-6015-5360
Angel O ClaudioDepartment of Neurology, University of Miami Miller School of Medicine, Miami, FL, USA.
Andres M KannerDepartment of Neurology, University of Miami Miller School of Medicine, Miami, FL, USA.
Jennifer HoppNeurology, University of Maryland Medical Center, Baltimore, MD, USA.
Stephanie ChenNeurology, University of Maryland Medical Center, Baltimore, MD, USA.
Jennifer HaagensenNeurology, University of Maryland Medical Center, Baltimore, MD, USA.
Emily JohnsonNeurology, Johns Hopkins Hospital, Baltimore, MD, USA.
William AndersonNeurology, Johns Hopkins Hospital, Baltimore, MD, USA.
Nathan CroneInstitute for Computational Medicine, Johns Hopkins University, Baltimore, MD, USA.ORCID http://orcid.org/0000-0001-7950-2617
Sara InatiSurgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA.ORCID http://orcid.org/0000-0002-7587-5085
Kareem A ZaghloulSurgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA.ORCID http://orcid.org/0000-0001-8575-3578
Juan BulacioEpilepsy Center, Cleveland Clinic, Cleveland, OH, USA.
Jorge Gonzalez-Martinez *Neurosurgery and Epilepsy Center, University of Pittsburgh Medical Center, Pittsburgh, PA, USA.
Sridevi V Sarma *Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD, USA.

Funding

QAQC Johns Hopkins Institute for Clinical and Translational ResearchUL1TR003098 · NCATS · JOHNS HOPKINS UNIVERSITY · PI FORD, DANIEL ERNEST · 2019 to 2023
$57.7M
Investigating the neural mechanisms of human cognitive function through intracranial recordingsZIANS003144 · NINDS · NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE · PI ZAGHLOUL, KAREEM · 2014 to 2025
$36.1M
Training Program in NeuroengineeringT32EB003383 · NIBIB · JOHNS HOPKINS UNIVERSITY · PI NITISH VYOMESH THAKOR · 2004 to 2026
$6.5M
ASPIRE - A Joint Johns Hopkins, Morgan State and Coppin State IRACDA ProgramK12GM123914 · NIGMS · JOHNS HOPKINS UNIVERSITY · PI BROWN, LISA D., SARMA, SRIDEVI V. · 2018 to 2022
$2.5M
Neurological Emergencies Treatment Trials (NETT) Network Clinical Site Hubs (U10)U10NS058932 · NINDS · UNIVERSITY OF MARYLAND BALTIMORE · PI STERN, BARNEY JOEL · 2007 to 2011
$1.1M
Late-onset Epilepsy and CognitionK23AG063899 · NIA · JOHNS HOPKINS UNIVERSITY · PI JOHNSON, EMILY · 2020 to 2024
$973k
University of MIami Neurosurgery eDucation Strategy UMINDSR25NS108937 · NINDS · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI DIETRICH, W DALTON, IAVARONE, ANTONIO · 2019 to 2024
$558k
Using Feedback Control to Suppress Seizure Genesis in EpilepsyR21NS103113 · NINDS · JOHNS HOPKINS UNIVERSITY · PI SARMA, SRIDEVI V. · 2018 to 2019
$419k
NCATS NIH HHS UL1 TR003098NIA NIH HHS K23 AG063899NIBIB NIH HHS T32 EB003383NIGMS NIH HHS K12 GM123914NINDS NIH HHS R21 NS103113NINDS NIH HHS R25 NS108937NINDS NIH HHS U10 NS058932
6 · The paper itself

Abstract

Over 15 million patients with epilepsy worldwide do not respond to drugs. Successful surgical treatment requires complete removal or disconnection of the seizure onset zone (SOZ), brain region(s) where seizures originate. Unfortunately, surgical success rates vary between 30 and 70% because no clinically validated biological marker of the SOZ exists. We develop and retrospectively validate a new electroencephalogram (EEG) marker-neural fragility-in a retrospective analysis of 91 patients by using neural fragility of the annotated SOZ as a metric to predict surgical outcomes. Fragility predicts 43 out of 47 surgical failures, with an overall prediction accuracy of 76% compared with the accuracy of clinicians at 48% (successful outcomes). In failed outcomes, we identify fragile regions that were untreated. When compared to 20 EEG features proposed as SOZ markers, fragility outperformed in predictive power and interpretability, which suggests neural fragility as an EEG biomarker of the SOZ.

Indexed as

ElectroencephalographyAdolescentAdultAlgorithmsBiomarkersBrain MappingDrug Resistant EpilepsyFemaleHumansMaleMiddle AgedNeuronsNeurosurgical ProceduresPredictive Value of TestsRetrospective StudiesSeizuresBiomarkers

Identifiers

PMID34354282
PMCPMC8547387

What OpenQuestion holds

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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.