Evidence map›Paper›PMID 37114472›Full record

ArticleEpilepsia2023

Long-term epilepsy outcome dynamics revealed by natural language processing of clinic notes.

Kevin Xie, Ryan S Gallagher, Russell T Shinohara, Sharon X Xie, Chloe E Hill, Erin C Conrad, Kathryn A Davis, Dan Roth, Brian Litt, Colin A Ellis

Abstract read
In one paragraph

Article in Epilepsia, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing 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

22 citing papers in PubMed.

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  18. Disparities in seizure outcomes revealed by large language models.Journal of the American Medical Informatics Association : JAMIA · 2024
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  19. Article
  20. 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

10 authors.

Kevin XieDepartment of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania, USA.ORCID 0000-0003-1849-2085
Ryan S GallagherCenter for Neuroengineering and Therapeutics, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Russell T ShinoharaPenn Statistics in Imaging and Visualization Center, Department of Biostatistics, Epidemiology, and Informatics, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Sharon X XieDepartment of Biostatistics, Epidemiology, and Informatics, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Chloe E HillDepartment of Neurology, University of Michigan, Ann Arbor, Michigan, USA.ORCID 0000-0001-5307-4167
Erin C ConradCenter for Neuroengineering and Therapeutics, University of Pennsylvania, Philadelphia, Pennsylvania, USA.ORCID 0000-0001-8910-1817
Kathryn A DavisCenter for Neuroengineering and Therapeutics, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Dan RothDepartment of Computer and Information Science, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Brian LittDepartment of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Colin A EllisCenter for Neuroengineering and Therapeutics, University of Pennsylvania, Philadelphia, Pennsylvania, USA.ORCID 0000-0003-2152-8106

Funding

Ghost in the Machine: Melding Brain, Computer and BehaviorDP1NS122038 · NINDS · UNIVERSITY OF PENNSYLVANIA · PI LITT, BRIAN · 2020 to 2024
$5.7M
Training Program in Neuroengineering and MedicineT32NS091006 · NINDS · UNIVERSITY OF PENNSYLVANIA · PI Brian Litt · 2015 to 2026
$4.1M
Optimized Intracranial EEG Targeting in Focal Epilepsy based upon Neuroimaging ConnectomicsR01NS116504 · NINDS · UNIVERSITY OF PENNSYLVANIA · PI DAVIS, KATHRYN ADAMIAK · 2021 to 2025
$3.3M
Guiding epilepsy surgery using network models and Stereo EEGR01NS125137 · NINDS · UNIVERSITY OF PENNSYLVANIA · PI BASSETT, DANIELLE SMITH, LITT, BRIAN · 2022 to 2025
$2.8M
Quantitative interictal networks to localize seizure generatorsK23NS121401 · NINDS · UNIVERSITY OF PENNSYLVANIA · PI Erin Conrad · 2022 to 2026
$1.2M
Polygenic risk in familial epilepsyK23NS121520 · NINDS · UNIVERSITY OF PENNSYLVANIA · PI ELLIS, COLIN · 2021 to 2025
$1.1M
Optimizing Care for Patients with Drug-Resistant EpilepsyK23NS126495 · NINDS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI Chloe E Hill · 2023 to 2026
$881k
Virtual Resection to Treat EpilepsyR56NS099348 · NINDS · UNIVERSITY OF PENNSYLVANIA · PI BASSETT, DANIELLE SMITH, LITT, BRIAN · 2021 to 2021
$552k
NIH HHS 1DP1 OD029758NINDS NIH HHS DP1 NS122038NINDS NIH HHS K23 NS121401NINDS NIH HHS K23 NS121520NINDS NIH HHS K23NS121520NINDS NIH HHS K23 NS126495NINDS NIH HHS R01 NS116504NINDS NIH HHS R01 NS125137NINDS NIH HHS R56 NS099348NINDS NIH HHS T32 NS091006
6 · The paper itself

Abstract

objectiveElectronic medical records allow for retrospective clinical research with large patient cohorts. However, epilepsy outcomes are often contained in free text notes that are difficult to mine. We recently developed and validated novel natural language processing (NLP) algorithms to automatically extract key epilepsy outcome measures from clinic notes. In this study, we assessed the feasibility of extracting these measures to study the natural history of epilepsy at our center.

methodsWe applied our previously validated NLP algorithms to extract seizure freedom, seizure frequency, and date of most recent seizure from outpatient visits at our epilepsy center from 2010 to 2022. We examined the dynamics of seizure outcomes over time using Markov model-based probability and Kaplan-Meier analyses.

resultsPerformance of our algorithms on classifying seizure freedom was comparable to that of human reviewers (algorithm F SIGNIFICANCE: Our findings demonstrate that epilepsy outcome measures can be extracted accurately from unstructured clinical note text using NLP. At our tertiary center, the disease course often followed a remitting and relapsing pattern. This method represents a powerful new tool for clinical research with many potential uses and extensions to other clinical questions.

Indexed as

EpilepsyNatural Language ProcessingElectronic Health RecordsHumansRetrospective StudiesSeizuresclinical informaticselectronic health recordseizure freedomseizure frequency

Identifiers

PMID37114472
PMCPMC10523917

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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.