Evidence map›Paper›PMID 23293853›Full record

ArticleEpilepsia2013

Reduced default mode network connectivity in treatment-resistant idiopathic generalized epilepsy.

Benjamin P Kay, Mark W DiFrancesco, Michael D Privitera, Jean Gotman, Scott K Holland, Jerzy P Szaflarski

Open access · bronzeAbstract read
In one paragraph

Article in Epilepsia, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed, 1 pooled it
3.6field-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

44 citing papers in PubMed, 1 synthesis or guideline pooled it, 88 citations in OpenAlex.

  1. Pooled it
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  15. Recent Advances in Neuroimaging of Epilepsy.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2021
    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

6 authors at 3 institutions in 2 countries.

Benjamin P KayNeuroscience Graduate Program, University of Cincinnati, Cincinnati, Ohio, USA. benjamin@benkay.net
Mark W DiFrancesco
Michael D Privitera
Jean Gotman
Scott K Holland
Jerzy P Szaflarski
Cincinnati Children's Hospital Medical Center · USMontreal Neurological Institute and Hospital · CAUniversity of Cincinnati · US

Funding

Medical Scientist Training ProgramT32GM063483 · NIGMS · UNIVERSITY OF CINCINNATI · PI KHURANA HERSHEY, GURJIT K. · 2002 to 2022
$6.7M
EEG-fMRI in Patients with JMEK23NS052468 · NINDS · UNIVERSITY OF CINCINNATI · PI SZAFLARSKI, JERZY P · 2006 to 2010
$869k
NIGMS NIH HHS T32 GM063483NINDS NIH HHS K23 NS052468
6 · The paper itself

Abstract

purposeIdiopathic generalized epilepsy (IGE) resistant to treatment is common, but its neuronal correlates are not entirely understood. Therefore, the aim of this study was to examine resting-state default mode network (DMN) functional connectivity in patients with treatment-resistant IGE.

methodsTreatment resistance was defined as continuing seizures despite an adequate dose of valproic acid (valproate, VPA). Data from 60 epilepsy patients and 38 healthy controls who underwent simultaneous electroencephalography (EEG) and resting-state functional magnetic resonance imaging (fMRI) were included (EEG/fMRI). Independent component analysis (ICA) and dual regression were used to quantify DMN connectivity. Confirmatory analysis using seed-based voxel correlation was performed. KEY

findingsThere was a significant reduction of DMN connectivity in patients with treatment-resistant epilepsy when compared to patients who were treatment responsive and healthy controls. Connectivity was negatively correlated with duration of epilepsy. SIGNIFICANCE: Our findings in this large sample of patients with IGE indicate the presence of reduced DMN connectivity in IGE and show that connectivity is further reduced in treatment-resistant epilepsy. DMN connectivity may be useful as a biomarker for treatment resistance.

Indexed as

AdolescentAdultDown-RegulationEpilepsy, GeneralizedFemaleHumansMaleMiddle AgedNerve NetProspective StudiesTreatment FailureTreatment OutcomeValproic AcidYoung AdultValproic Acid

Identifiers

PMID23293853
PMCPMC3593969
OpenAlexW2003164811

What OpenQuestion holds

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Read underepoch 390

Registered trials

None linked

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.