Evidence map›Paper›PMID 36327647›Full record

ArticleEpilepsy & behavior : E&B2022

Invasive neuromodulation for epilepsy: Comparison of multiple approaches from a single center.

Juan Luis Alcala-Zermeno, Nicholas M Gregg, Keith Starnes, Jayawant N Mandrekar, Jamie J Van Gompel, Kai Miller, Greg Worrell, Brian N Lundstrom

Open access · greenAbstract read
In one paragraph

Article in Epilepsy & behavior : E&B, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 4 pooled it
3.2field-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

26 citing papers in PubMed, 4 syntheses or guidelines pooled it, 39 citations in OpenAlex.

  1. Neurostimulation in children with drug-resistant epilepsy: strategies in subcortical targeting and systematic review of the evidence.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2025
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  7. A guide to neuromodulation in drug-resistant epilepsy.Epileptic disorders : international epilepsy journal with videotape · 2026
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  15. On brain stimulation in epilepsy.Brain : a journal of neurology · 2025
    Review
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  20. Intracranial Voltage Profiles from Untangled Human Deep Sources Reveal Multisource Composition and Source Allocation Bias.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    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

8 authors at 2 institutions in 1 country.

Juan Luis Alcala-ZermenoDepartment of Neurology, Mayo Clinic, 200 First St SW, Rochester, MN 55905, USA; Department of Neurology, Jefferson Medical College, Thomas Jefferson University, 901 Walnut Street, Suite 400, Philadelphia, PA 19107, USA. Electronic address: AlcalaZermeno.JuanLuis@mayo.edu.
Nicholas M GreggDepartment of Neurology, Mayo Clinic, 200 First St SW, Rochester, MN 55905, USA. Electronic address: Gregg.Nicholas@mayo.edu.
Keith StarnesDivision of Child and Adolescent Neurology, Department of Neurology, 200 First St SW, Rochester, MN 55905, USA. Electronic address: Starnes.Donnie@mayo.edu.
Jayawant N MandrekarDivision of Clinical Trials and Biostatistics, Department of Quantitative Health Sciences, Mayo Clinic, 200 First St SW, Rochester, MN 55905, USA. Electronic address: Mandrekar.Jay@mayo.edu.
Jamie J Van GompelDepartment of Neurologic Surgery, Mayo Clinic, 200 First St SW, Rochester, MN 55905, USA. Electronic address: VanGompel.Jamie@mayo.edu.
Kai MillerDepartment of Neurologic Surgery, Mayo Clinic, 200 First St SW, Rochester, MN 55905, USA. Electronic address: Miller.Kai@mayo.edu.
Greg WorrellDepartment of Neurology, Mayo Clinic, 200 First St SW, Rochester, MN 55905, USA. Electronic address: Worrell.Gregory@mayo.edu.
Brian N LundstromDepartment of Neurology, Mayo Clinic, 200 First St SW, Rochester, MN 55905, USA. Electronic address: lundstrom.brian@mayo.edu.
Mayo Clinic · USThomas Jefferson University · US

Funding

Thalamic stimulation to prevent impaired consciousness in epilepsyUH3NS112826 · NINDS · YALE UNIVERSITY · PI BLUMENFELD, HAL · 2021 to 2023
$5.4M
Neurophysiologically Based Brain State Tracking & Modulation in Focal EpilepsyUH3NS095495 · NINDS · MAYO CLINIC ROCHESTER · PI WORRELL, GREGORY A · 2019 to 2021
$2.8M
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 NS112339NINDS NIH HHS UH3 NS095495NINDS NIH HHS UH3 NS112826
6 · The paper itself

Abstract

backgroundDrug-resistant epilepsy (DRE) patients not amenable to epilepsy surgery can benefit from neurostimulation. Few data compare different neuromodulation strategies.

objectiveCompare five invasive neuromodulation strategies for the treatment of DRE: anterior thalamic nuclei deep brain stimulation (ANT-DBS), centromedian thalamic nuclei DBS (CM-DBS), responsive neurostimulation (RNS), chronic subthreshold stimulation (CSS), and vagus nerve stimulation (VNS).

methodsSingle center retrospective review and phone survey for patients implanted with invasive neuromodulation for 2004-2021.

resultsN = 159 (ANT-DBS = 38, CM-DBS = 19, RNS = 30, CSS = 32, VNS = 40). Total median seizure reduction (MSR) was 61 % for the entire cohort (IQR 5-90) and in descending order: CSS (85 %), CM-DBS (63 %), ANT-DBS (52 %), RNS (50 %), and VNS (50 %); p = 0.07. The responder rate was 60 % after a median follow-up time of 26 months. Seizure severity, life satisfaction, and quality of sleep were improved. Cortical stimulation (RNS and CSS) was associated with improved seizure reduction compared to subcortical stimulation (ANT-DBS, CM-DBS, and VNS) (67 % vs. 52 %). Effectiveness was similar for focal epilepsy vs. generalized epilepsy, closed-loop vs. open-loop stimulation, pediatric vs. adult cases, and high frequency (>100 Hz) vs. low frequency (<100 Hz) stimulation settings. Delivered charge per hour varied widely across approaches but was not correlated with improved seizure reduction.

conclusionsMultiple invasive neuromodulation approaches are available to treat DRE, but little evidence compares the approaches. This study used a uniform approach for single-center results and represents an effort to compare neuromodulation approaches.

Indexed as

Anterior Thalamic NucleiDeep Brain StimulationDrug Resistant EpilepsyEpilepsyAdultChildHumansSeizuresTreatment OutcomeChronic subthreshold stimulationDeep brain stimulationLow-frequency stimulationNeurostimulationResponsive neurostimulationVagus nerve stimulation

Identifiers

PMID36327647
PMCPMC9934010
OpenAlexW4308029169

What OpenQuestion holds

Textmetadata
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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.