Evidence map›Paper›PMID 34573203›Full record

ArticleBrain sciences2021

Risk of Developing Epilepsy after Autoimmune Encephalitis.

Ariadna Gifreu, Mercè Falip, Jacint Sala-Padró, Neus Mongay, Francisco Morandeira, Ángels Camins, Pablo Naval-Baudin, Misericordia Veciana, Montserrat Fernández, Jordi Pedro and 3 more

Open access · goldAbstract read
In one paragraph

Article in Brain sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
1.6field-weighted citation impact, top 14% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 25 citations in OpenAlex.

  1. Pooled it
  2. Does classical semiology ("5As") predict post-operative seizure outcome in patients with temporal lobe epilepsy?Epileptic disorders : international epilepsy journal with videotape · 2026
    Article
  3. Article
  4. Review
  5. Article
  6. Imaging biomarkers in antibody-mediated autoimmune encephalitis.Quantitative imaging in medicine and surgery · 2025
    Article
  7. Observational
  8. Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. 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

13 authors at 1 institution in 1 country.

Ariadna GifreuEpilepsy Unit, Neurology Service, Hospital Universitari de Bellvitge, Hospitalet de Llobregat, 08907 Barcelona, Spain.
Mercè FalipEpilepsy Unit, Neurology Service, Hospital Universitari de Bellvitge, Hospitalet de Llobregat, 08907 Barcelona, Spain.
Jacint Sala-PadróEpilepsy Unit, Neurology Service, Hospital Universitari de Bellvitge, Hospitalet de Llobregat, 08907 Barcelona, Spain.
Neus MongayNeurology Ward Unit, Neurology Service, Hospital Universitari de Bellvitge, Hospitalet de Llobregat, 08907 Barcelona, Spain.
Francisco MorandeiraLaboratory Service, Immunology Department, Hospital Universitari de Bellvitge, Hospitalet de Llobregat, 08907 Barcelona, Spain.
Ángels CaminsMRI Unit, IDI (Institute of Image Diagnosis), Hospital Universitari de Bellvitge-IDIBELL, Hospitalet de Llobregat, 08907 Barcelona, Spain.
Pablo Naval-BaudinMRI Unit, IDI (Institute of Image Diagnosis), Hospital Universitari de Bellvitge-IDIBELL, Hospitalet de Llobregat, 08907 Barcelona, Spain.ORCID 0000-0002-8714-0764
Misericordia VecianaNeurophysiology Department, Neurology Service, Hospital Universitari de Bellvitge, Hospitalet de Llobregat, 08907 Barcelona, Spain.
Montserrat FernándezMRI Unit, IDI (Institute of Image Diagnosis), Hospital Universitari de Bellvitge-IDIBELL, Hospitalet de Llobregat, 08907 Barcelona, Spain.
Jordi PedroNeurophysiology Department, Neurology Service, Hospital Universitari de Bellvitge, Hospitalet de Llobregat, 08907 Barcelona, Spain.
Belia GarciaNeurophysiology Department, Neurology Service, Hospital Universitari de Bellvitge, Hospitalet de Llobregat, 08907 Barcelona, Spain.
Pablo ArroyoNeurology Ward Unit, Neurology Service, Hospital Universitari de Bellvitge, Hospitalet de Llobregat, 08907 Barcelona, Spain.
Marta SimóNeuro-Oncology Unit, Hospital Universitari de Bellvitge-ICO L'Hospitalet (IDIBELL), Hospitalet de Llobregat, 08907 Barcelona, Spain.
Bellvitge University Hospital · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAcute symptomatic seizures (ASS) are a common manifestation of autoimmune encephalitis (AE), but the risk of developing epilepsy as a sequela of AE remains unknown, and factors predisposing the development of epilepsy have not been fully identified.

objectiveTo assess the risk of developing epilepsy in AE and study related risk factors. MATERIALS AND

methodsThis was a retrospective single centre study including patients diagnosed with AE according to criteria described by Graus et al., with a minimum follow-up of 12 months after AE resolution. The sample was divided according to whether patients developed epilepsy or not.

resultsA total of 19 patients were included; 3 (15.8%) had AE with intracellular antibodies, 9 (47.4%) with extracellular antibodies, and 7 (36.8%) were seronegative. During follow-up, 3 patients (15.8%) died, 4 (21.1%) presented relapses of AE, and 11 (57.89%) developed epilepsy. There was a significant association between the development of epilepsy and the presence of hippocampal atrophy in control brain magnetic resonance imaging (MRI) (

conclusionsHippocampal atrophy in neuroimaging, IED on EEG during follow-up, and immunotherapy delay could be predictors of the development of epilepsy in patients with AE.

Indexed as

acute symptomatic seizuresacute symptomatic seizures related to autoimmune encephalitisautoimmune encephalitisautoimmune-related epilepsyhippocampal atrophyimmunotherapyinterictal epileptiform discharges

Identifiers

PMID34573203
PMCPMC8468512
OpenAlexW3197554160

What OpenQuestion holds

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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.