Evidence map›Paper›PMID 41847043›Full record

ArticlebioRxiv : the preprint server for biology2026

Individualized and stereotypical seizure semiology in a porcine model of post-traumatic epilepsy.

Marco Pretell, Mariana Gonzalez Rodriguez, Waizo Chen, Alejandro Escobosa, Nelson Marquez Carvajal, Luis Martinez Ramirez, Benjamin Baskin, Monica Tynan, Andrew Schwalb, Paige O'Gorman and 9 more

Abstract readPreprint
In one paragraph

Article in bioRxiv : the preprint server for biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

19 authors.

Marco PretellDepartment of Neurosurgery, Massachusetts General Hospital, Charlestown, Massachusetts, United States of America.ORCID 0009-0009-4186-2719
Mariana Gonzalez RodriguezDepartment of Neurosurgery, Massachusetts General Hospital, Charlestown, Massachusetts, United States of America.
Waizo ChenDepartment of Neurosurgery, Massachusetts General Hospital, Charlestown, Massachusetts, United States of America.
Alejandro EscobosaDepartment of Neurosurgery, Massachusetts General Hospital, Charlestown, Massachusetts, United States of America.
Nelson Marquez CarvajalDepartment of Neurosurgery, Massachusetts General Hospital, Charlestown, Massachusetts, United States of America.ORCID 0009-0001-2462-5764
Luis Martinez RamirezDepartment of Neurosurgery, Massachusetts General Hospital, Charlestown, Massachusetts, United States of America.ORCID 0000-0001-9619-1689
Benjamin BaskinDepartment of Neurosurgery, Massachusetts General Hospital, Charlestown, Massachusetts, United States of America.ORCID 0009-0004-5735-7331
Monica TynanDepartment of Neurosurgery, Massachusetts General Hospital, Charlestown, Massachusetts, United States of America.
Andrew SchwalbDepartment of Neurosurgery, Massachusetts General Hospital, Charlestown, Massachusetts, United States of America.
Paige O'GormanDepartment of Neurology, Massachusetts General Hospital, Charlestown, Massachusetts, United States of America.
Arihant PatelDepartment of Neurosurgery, Massachusetts General Hospital, Charlestown, Massachusetts, United States of America.
Caitlyn SmithDepartment of Neurosurgery, Massachusetts General Hospital, Charlestown, Massachusetts, United States of America.ORCID 0000-0001-8944-0480
Veronica SendaoDepartment of Neurosurgery, Massachusetts General Hospital, Charlestown, Massachusetts, United States of America.
Justinne QuinanolaDepartment of Neurosurgery, Massachusetts General Hospital, Charlestown, Massachusetts, United States of America.
Rayen GandhiDepartment of Neurosurgery, Massachusetts General Hospital, Charlestown, Massachusetts, United States of America.
Aarush PatnalaDepartment of Neurosurgery, Massachusetts General Hospital, Charlestown, Massachusetts, United States of America.
Kyle P LillisDepartment of Neurology, Massachusetts General Hospital, Charlestown, Massachusetts, United States of America.ORCID 0000-0003-0219-8113
Kevin StaleyDepartment of Neurology, Massachusetts General Hospital, Charlestown, Massachusetts, United States of America.ORCID 0000-0002-3072-518X
Beth Costine-BartellDepartment of Neurosurgery, Massachusetts General Hospital, Charlestown, Massachusetts, United States of America.ORCID 0000-0001-7559-9378

Funding

Multiphoton In Vivo Microscopy (Core 2)P01NS127769 · NINDS · MASSACHUSETTS GENERAL HOSPITAL · PI Kevin J. Staley · 2023 to 2026
$6.5M
NINDS NIH HHS P01 NS127769
6 · The paper itself

Abstract

Large-animal models of traumatic brain injury may yield translatable data on epileptogenesis, given their similarities in anatomy, brain size, and immune systems to humans. Adult male and female swine received bilateral cortical impact (N=16) or sham surgery (N=6) and were screened for convulsions via video-EEG for up to one year. Post-traumatic epilepsy (PTE) was defined as 2 seizures after 1-week post-injury. Nine out of sixteen pigs (56%) receiving bilateral cortical impact developed PTE, with an average 4.6 months (±3.4,SD) latent period. Seizures (N = 199) began focally, sometimes with motor onset including automatisms, before becoming generalized, with tonic-clonic or tonic convulsions. We defined a library differentiating peri-ictal behaviors (N = 31) from rhythmic/odd behaviors typical in healthy pigs (N = 12). Seizures had an average of 7.3 behaviors per seizure (max 26) lasting an average of 1.8 minutes (max 7.9). For seizures comprised of multiple convulsive episodes, the first convulsion had a greater number of peri-ictal behaviors than subsequent convulsions (P < 0.001). The array of peri-ictal behaviors displayed was pig-specific, with many behaviors consistently observed across seizures. The seizure frequency detected was 0.38/day. This large-brain model of PTE exhibits a variable period of epileptogenesis, a substantial rate of PTE, and an expansive repertoire of ictal behaviors. This first description of semiology in this species will serve as a guide for other porcine epilepsy models. Biofidelic models of PTE are expected to increase our understanding of the pathophysiology, enabling the identification and testing of therapeutics that translate into human patients.

Indexed as

convulsionscortical impactearly traumatic seizurePost-traumatic epilepsyseizuresemiologyswine

Identifiers

PMID41847043
PMCPMC12990995

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

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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.