Evidence map›Paper›PMID 32995742›Full record

ArticleEpilepsy & behavior reports2020

Cortical and thalamic electrode implant followed by temporary continuous subthreshold stimulation yields long-term seizure freedom: A case report.

Juan Luis Alcala-Zermeno, Nicholas M Gregg, Jamie J Van Gompel, Matt Stead, Gregory A Worrell, Brian Nils Lundstrom

Registry-linked trialOpen access · goldAbstract readCase Reports
In one paragraph

Article in Epilepsy & behavior reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06424977 (Safety and Effectiveness of Biomarker Targeted Stimulation in Epilepsy), which is not on this map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.4field-weighted citation impact, top 32% 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.

NCT06424977 nanot yet recruitingnot on this mapstarted 2026, after this paper: background citation

Safety and Effectiveness of Biomarker Targeted Stimulation in Epilepsy

TypeinterventionalSponsorCadence NeuroscienceRan2026 to 2030Enrolled40ConditionsEpilepsyArmsBiomarker Targeted Stimulation (BTS)
3 · Its place in the literature

Who cites it

7 citing papers in PubMed, 10 citations in OpenAlex.

  1. Trial
  2. A guide to neuromodulation in drug-resistant epilepsy.Epileptic disorders : international epilepsy journal with videotape · 2026
    Review
  3. Article
  4. Article
  5. Article
  6. Review
  7. Review
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 2 institutions in 1 country.

Juan Luis Alcala-ZermenoDepartment of Neurology, Mayo Clinic, Rochester, MN, USA.
Nicholas M GreggDepartment of Neurology, Mayo Clinic, Rochester, MN, USA.
Jamie J Van GompelDepartment of Neurologic Surgery, Mayo Clinic, Rochester, MN, USA.
Matt SteadDark Horse Neuro, Inc., Bozeman, MT, USA.
Gregory A WorrellDepartment of Neurology, Mayo Clinic, Rochester, MN, USA.
Brian Nils LundstromDepartment of Neurology, Mayo Clinic, Rochester, MN, USA.
Mayo Clinic in Arizona · USMayo Clinic · US

Funding

Localizing value and underlying mechanisms of low frequency EEG for focal epilepsyK23NS112339 · NINDS · MAYO CLINIC ROCHESTER · PI LUNDSTROM, BRIAN NILS · 2019 to 2023
$935k
NINDS NIH HHS K23 NS112339
6 · The paper itself

Abstract

Neuromodulation strategies that target the epileptogenic network are options for treating focal drug-resistant epilepsy. These brain stimulation approaches include responsive neurostimulation and more recently, chronic subthreshold stimulation. Long-term seizure freedom with neuromodulation is uncommon. Seizure control typically requires ongoing froms of electrical stimulation. Here, we present the case of a patient implanted with three cortical electrodes targeting the inferior frontal lobe, insula, and one subcortical electrode targeting the ipsilateral anterior thalamic nucleus. This patient received continuous subthreshold electrical stimulation to the frontal electrodes for 7 months, at which time stimulation was inadvertently stopped. He has now been free of seizures for 42 months. This case suggests the possibility that neuromodulation can alter epileptogenic networks and lead to seizure freedom without ongoing electrical stimulation.

Indexed as

Anterior thalamic nucleusChronic subthreshold cortical stimulationChronic subthreshold stimulationDrug-resistant epilepsyNeuromodulationSeizure freedom

Identifiers

PMID32995742
PMCPMC7501416
OpenAlexW3081790772

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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.