Revue neurologiquePub Date : 2025-05-01DOI: 10.1016/j.neurol.2025.02.008
D.M. Kullmann
{"title":"Recent progress and challenges in gene therapy for pharmacoresistant focal epilepsy","authors":"D.M. Kullmann","doi":"10.1016/j.neurol.2025.02.008","DOIUrl":"10.1016/j.neurol.2025.02.008","url":null,"abstract":"<div><div>Pharmacoresistant focal epilepsy represents a major unmet need. Recent years have seen several gene therapy strategies validated mainly in rodent models of temporal lobe epilepsy, and some of these have been de-risked for clinical trials. This review considers some of the challenges in progressing from experimental models to the clinic. Among these are identifying promising promoter-transgene combinations, establishing safe and efficacious doses, achieving optimal delivery, and extrapolating across different aetiologies.</div></div>","PeriodicalId":21321,"journal":{"name":"Revue neurologique","volume":"181 5","pages":"Pages 438-444"},"PeriodicalIF":2.8,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143754029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Revue neurologiquePub Date : 2025-05-01DOI: 10.1016/j.neurol.2025.03.010
E. Boglietti , D. Haddad , L. Bezin , S. Rheims
{"title":"Pathophysiology of SUDEP: How far are we from understanding?","authors":"E. Boglietti , D. Haddad , L. Bezin , S. Rheims","doi":"10.1016/j.neurol.2025.03.010","DOIUrl":"10.1016/j.neurol.2025.03.010","url":null,"abstract":"<div><div>Sudden and unexpected death in epilepsy patients (SUDEP) is the leading cause of death in patients suffering from drug-resistant epilepsy. A significant number of studies have been conducted in both patients and animal models to examine the initial cascade of events that directly cause death as well as the factors that contribute to the long-term risk of SUDEP. This review aims to discuss the main pathophysiological hypotheses that are currently considered in both clinical and pre-clinical models of SUDEP. Studies have highlighted that SUDEP is typically triggered by a seizure, with central fatal apnea as the primary cause of death. Findings also suggest that chronic impairments in respiratory regulation may contribute to SUDEP risk, with serotonin dysfunction playing a key role in the associated respiratory abnormalities. These insights on SUDEP pathophysiology contribute to better risk assessment, though gaps remain in understanding the precise mechanisms linking SUDEP and transient peri-ictal respiratory dysfunction.</div></div>","PeriodicalId":21321,"journal":{"name":"Revue neurologique","volume":"181 5","pages":"Pages 432-437"},"PeriodicalIF":2.8,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143923771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Revue neurologiquePub Date : 2025-05-01DOI: 10.1016/j.neurol.2025.03.008
H. Catenoix , W. Grabon , S. Rheims , S. Vukusic , R. Marignier
{"title":"Multiple sclerosis and epilepsy","authors":"H. Catenoix , W. Grabon , S. Rheims , S. Vukusic , R. Marignier","doi":"10.1016/j.neurol.2025.03.008","DOIUrl":"10.1016/j.neurol.2025.03.008","url":null,"abstract":"<div><div>Epilepsy is a notable comorbidity in multiple sclerosis (MS), with a prevalence significantly higher than in the general population. This co-occurrence suggests shared pathophysiological mechanisms, including cortical demyelination, chronic inflammation and neurodegeneration, which predispose MS patients to seizures. Advanced imaging studies highlight the role of cortical lesions and atrophy in epileptogenesis, while inflammatory processes further lower the seizure threshold. Additionally, MS-associated network dysfunction disrupts normal neural activity, contributing to seizure susceptibility. This review synthesizes epidemiological, neuroimaging, and clinical evidence to elucidate the complex relationship between epilepsy and MS. It emphasizes the importance of personalized care and the need for further research to refine treatment protocols, improve outcomes, and enhance the quality of life for this unique patient population.</div></div>","PeriodicalId":21321,"journal":{"name":"Revue neurologique","volume":"181 5","pages":"Pages 391-396"},"PeriodicalIF":2.8,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143780974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Revue neurologiquePub Date : 2025-05-01DOI: 10.1016/j.neurol.2025.03.003
R. Checri , S. Baldassari , S. Baulac
{"title":"Detection of brain somatic mutations from stereo-EEG electrodes in focal epilepsy: Current advances and future perspectives","authors":"R. Checri , S. Baldassari , S. Baulac","doi":"10.1016/j.neurol.2025.03.003","DOIUrl":"10.1016/j.neurol.2025.03.003","url":null,"abstract":"<div><div>Brain somatic mutations are increasingly recognized as major drivers of focal epilepsy particularly in malformations of cortical development. While traditionally relying on surgically resected tissue for genetic analysis, recent advances in molecular techniques now enable the recovery and analysis of DNA from stereo-electroencephalography (SEEG) electrodes. This minimally invasive approach provides unprecedented opportunities to identify somatic mutations in patients who may not undergo resective surgery. Here, we review the current state of molecular analyses from SEEG electrodes, including recent developments in DNA sequencing, transcriptomics, and epigenetic profiling. We discuss how genetic testing may be integrated into presurgical evaluations, providing new opportunities for comprehensive molecular phenotyping of focal epilepsies. These innovations hold promises in enhancing surgical outcome prediction and guiding toward targeted therapies.</div></div>","PeriodicalId":21321,"journal":{"name":"Revue neurologique","volume":"181 5","pages":"Pages 425-431"},"PeriodicalIF":2.8,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143788886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Revue neurologiquePub Date : 2025-05-01DOI: 10.1016/j.neurol.2025.04.003
S. Auvin
{"title":"Targeted therapies in epilepsies","authors":"S. Auvin","doi":"10.1016/j.neurol.2025.04.003","DOIUrl":"10.1016/j.neurol.2025.04.003","url":null,"abstract":"<div><div>In recent years, the increasing availability of antiseizure medications has not reduced the incidence of drug-resistant epilepsy. Precision medicine offers the potential for mechanism-driven treatments for rare pediatric epilepsies. The concept of precision medicine is not new in the field of epilepsy, as demonstrated by the use of pyridoxine for antiquitin deficiency (pyridoxine-dependent epilepsy) and the ketogenic diet for GLUT1 deficiency syndrome. More recently, preclinical evidence has led to phase 3 clinical trials, such as the use of everolimus to inhibit the mTOR pathway in tuberous sclerosis complex. However, preclinical findings do not always translate into effective treatments, as illustrated by the heterogeneous effects of quinidine in KCNT1-related epilepsy. Currently, an exponential increase in compounds identified at the preclinical level will require clinical trial validation. However, it remains uncertain whether these developments will lead to improved efficacy in drug-resistant epilepsy or have any disease-modifying effects. This article does not explicitly address antisense oligonucleotides or gene therapy.</div></div>","PeriodicalId":21321,"journal":{"name":"Revue neurologique","volume":"181 5","pages":"Pages 450-455"},"PeriodicalIF":2.8,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143923773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Revue neurologiquePub Date : 2025-05-01DOI: 10.1016/j.neurol.2025.03.004
F. Bartolomei , J. Makhalova , J. Benoit , S. Lagarde
{"title":"The different subtypes of temporal lobe seizures networks","authors":"F. Bartolomei , J. Makhalova , J. Benoit , S. Lagarde","doi":"10.1016/j.neurol.2025.03.004","DOIUrl":"10.1016/j.neurol.2025.03.004","url":null,"abstract":"<div><div>Temporal lobe epilepsies (TLEs) are among the forms of epilepsy most frequently encountered in surgical evaluations, characterized by a wide range of anatomical, functional, and electroclinical subtypes. Traditional classifications, such as mesial and lateral TLE, have been broadened by advances in stereoelectroencephalography (SEEG), revealing more complex forms such as mesio-lateral and temporal-plus seizures. These findings support the concept of epileptogenic networks, emphasizing interconnected regions rather than isolated focal areas in the genesis of seizures. Quantitative tools, such as the epileptogenicity index (EI), are improving the accuracy of SEEG interpretation, which is closely correlated with surgical results. Temporal-plus epilepsies, in particular, require full SEEG exploration due to their broader involvement in the network, necessitating tailored surgical approaches. A better understanding of TLEs subtypes and epileptogenic networks is an essential basis for advancing minimally invasive surgical techniques, including laser interstitial thermal therapy (LITT) and neuromodulation. These methods rely on the precise localization of epileptogenic networks. This network-based framework represents an important step towards optimizing surgical outcomes and advancing personalized epilepsy care.</div></div>","PeriodicalId":21321,"journal":{"name":"Revue neurologique","volume":"181 5","pages":"Pages 368-381"},"PeriodicalIF":2.8,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143754216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Revue neurologiquePub Date : 2025-05-01DOI: 10.1016/j.neurol.2025.04.001
E. Dessevres , M. Valderrama , M. Le Van Quyen
{"title":"Artificial intelligence for the detection of interictal epileptiform discharges in EEG signals","authors":"E. Dessevres , M. Valderrama , M. Le Van Quyen","doi":"10.1016/j.neurol.2025.04.001","DOIUrl":"10.1016/j.neurol.2025.04.001","url":null,"abstract":"<div><h3>Introduction</h3><div>Over the past decades, the integration of modern technologies — such as electronic health records, cloud computing, and artificial intelligence (AI) — has revolutionized the collection, storage, and analysis of medical data in neurology. In epilepsy, Interictal Epileptiform Discharges (IEDs) are the most established biomarker, indicating an increased likelihood of seizures. Their detection traditionally relies on visual EEG assessment, a time-consuming and subjective process contributing to a high misdiagnosis rate. These limitations have spurred the development of automated AI-driven approaches aimed at improving accuracy and efficiency in IED detection.</div></div><div><h3>Methods</h3><div>Research on automated IED detection began 45 years ago, spanning from morphological methods to deep learning techniques. In this review, we examine various IED detection approaches, evaluating their performance and limitations.</div></div><div><h3>Results</h3><div>Traditional machine learning and deep learning methods have produced the most promising results to date, and their application in IED detection continues to grow. Today, AI-driven tools are increasingly integrated into clinical workflows, assisting clinicians in identifying abnormalities while reducing false-positive rates.</div></div><div><h3>Discussion</h3><div>To optimize the clinical implementation of automated AI-based IED detection, it is essential to render the codes publicly available and to standardize the datasets and metrics. Establishing uniform benchmarks will enable objective model comparisons and help determine which approaches are best suited for clinical use.</div></div>","PeriodicalId":21321,"journal":{"name":"Revue neurologique","volume":"181 5","pages":"Pages 411-419"},"PeriodicalIF":2.8,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143923770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Revue neurologiquePub Date : 2025-05-01DOI: 10.1016/j.neurol.2025.03.009
L. Tyvaert
{"title":"Are antiseizure medications disease modifiers?","authors":"L. Tyvaert","doi":"10.1016/j.neurol.2025.03.009","DOIUrl":"10.1016/j.neurol.2025.03.009","url":null,"abstract":"<div><div>The International League Against Epilepsy (ILAE) is proposing a new nomenclature, replacing the confusing term antiepileptic drugs (AEDs) with antiseizure medications (ASMs). This approach has been partly motivated by the emergence of new treatments with antiepileptogenic or, more precisely, disease-modifying effects. This implies an effect on the temporal course of the disease, even when treatment is discontinued. However, the terms ASM and disease-modifying are not mutually exclusive. In some cases, ASMs can have this property. however, demonstrating this disease-modifying effect, and hence the development of these molecules, remains complex and difficult. The disease-modifying effect of ASM seems to depend on its etiological or pathophysiological effect on the developing epileptic disease, but also on other characteristics: target on etiological or pathophysiological mechanisms of the disease, level of cerebral maturation, time after onset of an epileptogenic event, dosage and duration of treatment. The development of this new type of treatment requires a better definition of the target populations, a better understanding of the cascade of epileptogenic phenomena, and the definition of new diagnostic and prognostic markers for epilepsy.</div></div>","PeriodicalId":21321,"journal":{"name":"Revue neurologique","volume":"181 5","pages":"Pages 445-449"},"PeriodicalIF":2.8,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143923772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Revue neurologiquePub Date : 2025-05-01DOI: 10.1016/j.neurol.2025.03.006
M. Berger , R. Licandro , K.-H. Nenning , G. Langs , S.B. Bonelli
{"title":"Artificial intelligence applied to epilepsy imaging: Current status and future perspectives","authors":"M. Berger , R. Licandro , K.-H. Nenning , G. Langs , S.B. Bonelli","doi":"10.1016/j.neurol.2025.03.006","DOIUrl":"10.1016/j.neurol.2025.03.006","url":null,"abstract":"<div><div>In recent years, artificial intelligence (AI) has become an increasingly prominent focus of medical research, significantly impacting epileptology as well. Studies on deep learning (DL) and machine learning (ML) – the core of AI – have explored their applications in epilepsy imaging, primarily focusing on lesion detection, lateralization and localization of epileptogenic areas, postsurgical outcome prediction and automatic differentiation between people with epilepsy and healthy individuals. Various AI-driven approaches are being investigated across different neuroimaging modalities, with the ultimate goal of integrating these tools into clinical practice to enhance the diagnosis and treatment of epilepsy. As computing power continues to advance, the development, research integration, and clinical implementation of AI applications are expected to accelerate, making them even more effective and accessible. However, ensuring the safety of patient data will require strict regulatory measures. Despite these challenges, AI represents a transformative opportunity for medicine, particularly in epilepsy neuroimaging. Since ML and DL models thrive on large datasets, fostering collaborations and expanding open-access databases will become increasingly pivotal in the future.</div></div>","PeriodicalId":21321,"journal":{"name":"Revue neurologique","volume":"181 5","pages":"Pages 420-424"},"PeriodicalIF":2.8,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143773093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}