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Epileptic Disorders
Article . 2024 . Peer-reviewed
License: CC BY
Data sources: Crossref
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PubMed Central
Conference object . 2024
License: CC BY
Data sources: PubMed Central
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Ictal semiology in temporo‐frontal epilepsy: A systematic review and meta‐analysis

Authors: Irina Oane; Andrei Barborica; Ioana Mîndruţă;

Ictal semiology in temporo‐frontal epilepsy: A systematic review and meta‐analysis

Abstract

AbstractWe performed a systematic review of the ictal semiology of temporo‐frontal seizures with the aim to summarize the state‐of‐the‐art anatomo‐clinical correlations in the field, and help guide the interpretation of ictal semiology within the framework of presurgical evaluation. We conducted the systematic review and meta‐analysis, and reported its results according to the Preferred Reporting Items for Systematic Review and Meta‐Analysis statement. We searched electronic databases (Scopus, PUBMED, Web of Science, and EMBASE) using relevant keywords related to temporal, frontal and sublobar structures, semiology, and electroencephalography/stereoelectroencephalography exploration. The risk of bias was evaluated using the QUADAS2. We included articles in English, reporting the seizure semiology of patients with temporal lobe epilepsy with temporal‐frontal involvement and patients with frontal lobe epilepsy and fronto‐temporal network involved. We performed hierarchical cluster analysis to determine signs and symptoms associated with the temporo‐frontal epileptogenic network for all patients and for each subgroup (frontal/temporal seizure onset). Fisher exact test was performed to evaluate the difference in seizure freedom and clinical sign/symptom occurrence in patients that underwent unilobar versus bilobar resection. Meta‐analysis on the prevalence of temporo‐frontal/fronto‐temporal involvement applying a random‐effect model was used. We included 40 articles and we extracted data from 109 patients. The meta‐analysis showed the total prevalence of temporo‐frontal/fronto‐temporal network involvement was 19.75%, CI 12.02–27.47, high heterogeneity (82.71%). For the whole group and subgroups, the main cluster of clinical manifestations is emotional, autonomic, cognitive, grimace, hyperkinetic (association coefficient higher than .6). Elementary motor semiology is significantly associated with multilobar resection (p = .022 whole group and p = .0012 fronto‐temporal subgroup). Fifty‐eight patients were seizure‐free after surgery. There was no significant difference between seizure freedom in uni versus bilobar resections (p = .28). Seizures involving temporo‐frontal/fronto‐temporal network usually manifest with a cluster of signs and symptoms: emotional, autonomic, grimace, cognitive and hyperkinetic behavior. Based on semiology, one cannot distinguish between fronto‐temporal and temporo‐frontal cases at individual patient level. In those patients undergoing a surgical procedure, elementary motor seizure semiology is significantly associated with multilobar resection.

Keywords

Epilepsy, Temporal Lobe, Seizures, Epilepsy, Frontal Lobe, Humans, Electroencephalography, Review Article

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
2
Top 10%
Average
Average
Green
hybrid