Evidence map›Paper›PMID 34930926›Full record

ArticleScientific reports2021

Thalamic deep brain stimulation modulates cycles of seizure risk in epilepsy.

Nicholas M Gregg, Vladimir Sladky, Petr Nejedly, Filip Mivalt, Inyong Kim, Irena Balzekas, Beverly K Sturges, Chelsea Crowe, Edward E Patterson, Jamie J Van Gompel and 6 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
4.7field-weighted citation impact, top 4% 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

36 citing papers in PubMed, 61 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Rhythms in Longitudinal Thalamic Recordings are Linked to Seizure Risk.medRxiv : the preprint server for health sciences · 2025
    Article
  10. Biomarkers for Epilepsy Deep Brain Stimulation.Journal of clinical neurophysiology : official publication of the American Electroencephalographic Society · 2025
    Review
  11. Article
  12. Epileptiform Activity and Seizure Risk Follow Long-Term Non-Linear Attractor Dynamics.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Cyclical underreporting of seizures in patient-based seizure documentation.Annals of clinical and translational neurology · 2023
    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

16 authors at 6 institutions in 3 countries.

Nicholas M GreggDepartment of Neurology, Bioelectronics Neurophysiology and Engineering Laboratory, Mayo Clinic, Rochester, MN, 55905, USA. gregg.nicholas@mayo.edu.ORCID http://orcid.org/0000-0002-6151-043X
Vladimir SladkyDepartment of Neurology, Bioelectronics Neurophysiology and Engineering Laboratory, Mayo Clinic, Rochester, MN, 55905, USA.
Petr NejedlyDepartment of Neurology, Bioelectronics Neurophysiology and Engineering Laboratory, Mayo Clinic, Rochester, MN, 55905, USA.
Filip MivaltDepartment of Neurology, Bioelectronics Neurophysiology and Engineering Laboratory, Mayo Clinic, Rochester, MN, 55905, USA.ORCID http://orcid.org/0000-0002-0693-9495
Inyong KimDepartment of Neurology, Bioelectronics Neurophysiology and Engineering Laboratory, Mayo Clinic, Rochester, MN, 55905, USA.
Irena BalzekasDepartment of Neurology, Bioelectronics Neurophysiology and Engineering Laboratory, Mayo Clinic, Rochester, MN, 55905, USA.ORCID http://orcid.org/0000-0003-2731-9188
Beverly K SturgesDepartment of Veterinary Clinical Sciences, University of California, Davis, CA, 95616, USA.
Chelsea CroweDepartment of Veterinary Clinical Sciences, University of California, Davis, CA, 95616, USA.
Edward E PattersonDepartment of Veterinary Clinical Sciences, University of Minnesota College of Veterinary Medicine, St. Paul, MN, 55108, USA.
Jamie J Van GompelDepartment of Neurosurgery, Mayo Clinic, Rochester, MN, 55905, USA.ORCID http://orcid.org/0000-0001-8087-7870
Brian N LundstromDepartment of Neurology, Bioelectronics Neurophysiology and Engineering Laboratory, Mayo Clinic, Rochester, MN, 55905, USA.ORCID http://orcid.org/0000-0002-5310-5549
Kent LeydeCadence Neuroscience, Seattle, WA, 98052, USA.
Timothy J DenisonInstitute for Biomedical Engineering, Oxford University, Oxford, OX3 7DQ, UK.ORCID http://orcid.org/0000-0002-5404-4004
Benjamin H BrinkmannDepartment of Neurology, Bioelectronics Neurophysiology and Engineering Laboratory, Mayo Clinic, Rochester, MN, 55905, USA.ORCID http://orcid.org/0000-0002-2392-8608
Vaclav Kremen *Department of Neurology, Bioelectronics Neurophysiology and Engineering Laboratory, Mayo Clinic, Rochester, MN, 55905, USA.ORCID http://orcid.org/0000-0001-9844-7617
Gregory A Worrell *Department of Neurology, Bioelectronics Neurophysiology and Engineering Laboratory, Mayo Clinic, Rochester, MN, 55905, USA. worrell.gregory@mayo.edu.ORCID http://orcid.org/0000-0003-2916-0553
Mayo Clinic · USUniversity of California, Davis · USCadence Design Systems (United States) · USMayo Clinic in Arizona · USUniversity of Minnesota · USUniversity of Oxford · GB

Funding

Reliable Seizure Prediction Using Physiological Signals and Machine LearningR01NS092882 · NINDS · MAYO CLINIC ROCHESTER · PI Gregory A Worrell · 2015 to 2026
$5.7M
Accelerating Dissemination of Implantable Neurotechnology for Clinical ResearchU24NS113637 · NINDS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI BORTON, DAVID ALLENSON, DENISON, TIMOTHY · 2020 to 2024
$4.4M
Neurophysiologically Based Brain State Tracking & Modulation in Focal EpilepsyUH2NS095495 · NINDS · MAYO CLINIC ROCHESTER · PI WORRELL, GREGORY A · 2015 to 2018
$4.2M
Neurophysiologically Based Brain State Tracking & Modulation in Focal EpilepsyUH3NS095495 · NINDS · MAYO CLINIC ROCHESTER · PI WORRELL, GREGORY A · 2019 to 2021
$2.8M
Neurophysiologically Based Responsive Pharmacotherapy for EpilepsyU01NS073557 · NINDS · MAYO CLINIC ROCHESTER · PI LEYDE, KENT, PATTERSON, EDWARD E · 2011 to 2013
$1.5M
NINDS NIH HHS R01 NS092882NINDS NIH HHS U01 NS073557NINDS NIH HHS U24 NS113637NINDS NIH HHS UH2 NS095495NINDS NIH HHS UH3 NS095495
6 · The paper itself

Abstract

Chronic brain recordings suggest that seizure risk is not uniform, but rather varies systematically relative to daily (circadian) and multiday (multidien) cycles. Here, one human and seven dogs with naturally occurring epilepsy had continuous intracranial EEG (median 298 days) using novel implantable sensing and stimulation devices. Two pet dogs and the human subject received concurrent thalamic deep brain stimulation (DBS) over multiple months. All subjects had circadian and multiday cycles in the rate of interictal epileptiform spikes (IES). There was seizure phase locking to circadian and multiday IES cycles in five and seven out of eight subjects, respectively. Thalamic DBS modified circadian (all 3 subjects) and multiday (analysis limited to the human participant) IES cycles. DBS modified seizure clustering and circadian phase locking in the human subject. Multiscale cycles in brain excitability and seizure risk are features of human and canine epilepsy and are modifiable by thalamic DBS.

Indexed as

AnimalsCircadian RhythmDeep Brain StimulationDogsElectroencephalographyEpilepsyHumansRiskSeizuresThalamus

Identifiers

PMID34930926
PMCPMC8688461
OpenAlexW4200062446

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.