Evidence map›Paper›PMID 23068970›Full record

SynthesisSeizure2013

Vagus nerve stimulation vs. corpus callosotomy in the treatment of Lennox-Gastaut syndrome: a meta-analysis.

Guido Lancman, Michael Virk, Huibo Shao, Madhu Mazumdar, Jeffrey P Greenfield, Steven Weinstein, Theodore H Schwartz

Open access · bronzeAbstract readMeta-AnalysisReview
In one paragraph

Synthesis in Seizure, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 4 pooled it
5.0field-weighted citation impact, top 5% 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

35 citing papers in PubMed, 4 syntheses or guidelines pooled it, 160 citations in OpenAlex.

  1. Efficacy and safety of corpus callosotomy and ketogenic diet in children with Lennox Gastaut syndrome: a systematic review and meta-analysis.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2021
    Pooled it
  2. Pooled it
  3. Atonic seizures in children: a meta-analysis comparing corpus callosotomy to vagus nerve stimulation.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2021
    Pooled it
  4. Pooled it
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Clinical trials for Lennox-Gastaut syndrome: Challenges and priorities.Annals of clinical and translational neurology · 2024
    Review
  11. A survey of preferences and expectations for surgical interventions targeting atonic seizures in Lennox-Gastaut syndrome.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2024
    Article
  12. Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. Surgical Treatment of Drug-Resistant Generalized Epilepsy.Current neurology and neuroscience reports · 2022
    Review
  18. Article
  19. 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 1 institution in 1 country.

Guido LancmanDepartment of Neurological Surgery, Weill Cornell Medical College, 1300 York Avenue, New York, NY 10065, USA.
Michael Virk
Huibo Shao
Madhu Mazumdar
Jeffrey P Greenfield
Steven Weinstein
Theodore H Schwartz
Cornell University · US

Funding

CTSA INFRASTRUCTURE FOR PEDIATRIC RESEARCHUL1RR024996 · NCRR · WEILL MEDICAL COLL OF CORNELL UNIV · PI IMPERATO-MCGINLEY, JULIANNE L · 2007 to 2011
$49.6M
Clinical and Translational Science CenterUL1TR000457 · NCATS · WEILL MEDICAL COLL OF CORNELL UNIV · PI IMPERATO-MCGINLEY, JULIANNE L · 2012 to 2016
$46.0M
NCATS NIH HHS UL1 TR000457NCRR NIH HHS UL1 RR024996NCRR NIH HHS UL1-RR024996
6 · The paper itself

Abstract

purposeLennox-Gastaut syndrome (LGS) is an epileptogenic disorder that arises in childhood and is typically characterized by multiple seizure types, slow spike-and-wave complexes on EEG and cognitive impairment. If medical treatment fails, patients can proceed to one of two palliative surgeries, vagus nerve stimulation (VNS) or corpus callosotomy (CC). Their relative seizure control rates in LGS have not been well studied. The purpose of this paper is to compare seizure reduction rates between VNS and CC in LGS using meta-analyses of published data.

methodsA systematic search of Pubmed, Ovidsp, and Cochrane was performed to find articles that met the following criteria: (1) prospective or retrospective study, (2) at least one patient diagnosed with Lennox-Gastaut syndrome, and (3) well-defined measure of seizure frequency reduction. Seizure reduction rates were divided into seizure subtypes, as well as total seizures, and categorized as 100%, >75%, and >50%. Patient groups were compared using chi-square tests for categorical variables and t-test for continuous measures. Pooled proportions with 95% confidence interval (95% CI) of seizure outcomes were estimated for total seizures and seizure subtypes using random effects methods.

results17 VNS and 9 CC studies met the criteria for inclusion. CC had a significantly better outcome than VNS for >50% atonic seizure reduction (80.0% [67.0-90.0%] vs. 54.1% [32.1-75.4%], p<0.05) and for >75% atonic seizure reduction (70.0% [48.05-87.0%] vs. 26.3% [5.8-54.7%], p<0.05). All other seizure types, as well as total number of seizures, showed no statistically significant difference between VNS and CC.

conclusionsCC may be more beneficial for LGS patients whose predominant disabling seizure type is atonic. For all other seizure types, VNS offers comparable rates to CC.

Indexed as

Corpus CallosumHumansIntellectual DisabilityLennox Gastaut SyndromeNeurosurgeryPsychosurgerySpasms, InfantileVagus Nerve Stimulation

Identifiers

PMID23068970
PMCPMC3655762
OpenAlexW2003199554

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.