Evidence map›Paper›PMID 26030698›Full record

ReviewNeurosurgical focus2015

Neurostimulation to improve level of consciousness in patients with epilepsy.

Abhijeet Gummadavelli, Adam J Kundishora, Jon T Willie, John P Andrews, Jason L Gerrard, Dennis D Spencer, Hal Blumenfeld

Open access · bronzeAbstract readReview
In one paragraph

Review in Neurosurgical focus, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 8% 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

27 citing papers in PubMed, 1 synthesis or guideline pooled it, 51 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. The thalamus: Structure, function, and neurotherapeutics.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2025
    Review
  5. Article
  6. Is there room in epilepsy for the claustrum?Frontiers in systems biology · 2024
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. DyNeuMo Mk-2: An Investigational Circadian-Locked Neuromodulator with Responsive Stimulation for Applied Chronobiology.Conference proceedings. IEEE International Conference on Systems, Man, and Cybernetics · 2020
    Article
  16. Thalamic Stimulation Improves Postictal Cortical Arousal and Behavior.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2020
    Article
  17. Article
  18. Article
  19. Up and Down States of Cortical Neurons in Focal Limbic Seizures.Cerebral cortex (New York, N.Y. : 1991) · 2020
    Article
  20. Article
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

7 authors at 2 institutions in 1 country.

Abhijeet GummadavelliDepartments of 1Neurosurgery.
Adam J KundishoraDepartments of 1Neurosurgery.
Jon T Willie2Departments of Neurosurgery and Neurology, Emory University School of Medicine, Atlanta, Georgia.
John P AndrewsDepartments of 1Neurosurgery.
Jason L GerrardDepartments of 1Neurosurgery.
Dennis D SpencerDepartments of 1Neurosurgery.
Hal BlumenfeldDepartments of 1Neurosurgery.
Emory University · USYale University · US

Funding

Remote effects of focal hippocampal seizures on neocortical functionR01NS066974 · NINDS · YALE UNIVERSITY · PI HAL BLUMENFELD · 2011 to 2026
$5.5M
Deep brain stimulation to prevent impaired consciousness in epilepsyR21NS083783 · NINDS · YALE UNIVERSITY · PI BLUMENFELD, HAL · 2014 to 2015
$458k
Howard Hughes Medical InstituteNINDS NIH HHS R01 NS066974NINDS NIH HHS R21 NS083783
6 · The paper itself

Abstract

When drug-resistant epilepsy is poorly localized or surgical resection is contraindicated, current neurostimulation strategies such as deep brain stimulation and vagal nerve stimulation can palliate the frequency or severity of seizures. However, despite medical and neuromodulatory therapy, a significant proportion of patients continue to experience disabling seizures that impair awareness, causing disability and risking injury or sudden unexplained death. We propose a novel strategy in which neuromodulation is used not only to reduce seizures but also to ameliorate impaired consciousness when the patient is in the ictal and postictal states. Improving or preventing alterations in level of consciousness may have an effect on morbidity (e.g., accidents, drownings, falls), risk for death, and quality of life. Recent studies may have elucidated underlying networks and mechanisms of impaired consciousness and yield potential novel targets for neuromodulation. The feasibility, benefits, and pitfalls of potential deep brain stimulation targets are illustrated in human and animal studies involving minimally conscious/vegetative states, movement disorders, depth of anesthesia, sleep-wake regulation, and epilepsy. We review evidence that viable therapeutic targets for impaired consciousness associated with seizures may be provided by key nodes of the consciousness system in the brainstem reticular activating system, hypothalamus, basal ganglia, thalamus, and basal forebrain.

Indexed as

BrainConsciousnessDeep Brain StimulationEpilepsyHumansarousalDBSDBS = deep brain stimulationdeep brain stimulationEEG = electroencephalographyepilepsyGABA = gamma-aminobutyric acidlevel of consciousnessREM = rapid eye movement

Identifiers

PMID26030698
PMCPMC6300138
OpenAlexW1499567825

What OpenQuestion holds

Textmetadata
LicenceTDM
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.