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Gilmour GS, Salmon A, Josephson CB. Functional Seizures in the Elderly: Accurate Diagnosis Can Reduce Iatrogenic Harm. Can J Neurol Sci 2024; 51:330-332. [PMID: 36600669 DOI: 10.1017/cjn.2022.349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Gabriela S Gilmour
- Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Andrea Salmon
- Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Colin B Josephson
- Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada
- Department of Community Health Sciences and O'Brien Institute for Public Health, University of Calgary, Calgary, Alberta, Canada
- Centre for Health Informatics, University of Calgary, Calgary, Alberta, Canada
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2
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Schulze-Bonhage A, Bruno E, Brandt A, Shek A, Viana P, Heers M, Martinez-Lizana E, Altenmüller DM, Richardson MP, San Antonio-Arce V. Diagnostic yield and limitations of in-hospital documentation in patients with epilepsy. Epilepsia 2023; 64 Suppl 4:S4-S11. [PMID: 35583131 DOI: 10.1111/epi.17307] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 05/16/2022] [Accepted: 05/16/2022] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To determine the diagnostic yield of in-hospital video-electroencephalography (EEG) monitoring to document seizures in patients with epilepsy. METHODS Retrospective analysis of electronic seizure documentation at the University Hospital Freiburg (UKF) and at King's College London (KCL). Statistical assessment of the role of the duration of monitoring, and subanalyses on presurgical patient groups and patients undergoing reduction of antiseizure medication. RESULTS Of more than 4800 patients with epilepsy undergoing in-hospital recordings at the two institutions since 2005, seizures with documented for 43% (KCL) and 73% (UKF).. Duration of monitoring was highly significantly associated with seizure recordings (p < .0001), and presurgical patients as well as patients with drug reduction had a significantly higher diagnostic yield (p < .0001). Recordings with a duration of >5 days lead to additional new seizure documentation in only less than 10% of patients. SIGNIFICANCE There is a need for the development of new ambulatory monitoring strategies to document seizures for diagnostic and monitoring purposes for a relevant subgroup of patients with epilepsy in whom in-hospital monitoring fails to document seizures.
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Affiliation(s)
- Andreas Schulze-Bonhage
- Epilepsy Center, University Medical Center, University of Freiburg, Freiburg, Germany
- European Reference Network EpiCARE
| | - Elisa Bruno
- Division of Neuroscience, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Armin Brandt
- Epilepsy Center, University Medical Center, University of Freiburg, Freiburg, Germany
| | - Anthony Shek
- Division of Neuroscience, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Pedro Viana
- Division of Neuroscience, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Marcel Heers
- Epilepsy Center, University Medical Center, University of Freiburg, Freiburg, Germany
- European Reference Network EpiCARE
| | - Eva Martinez-Lizana
- Epilepsy Center, University Medical Center, University of Freiburg, Freiburg, Germany
- European Reference Network EpiCARE
| | | | - Mark Philip Richardson
- Division of Neuroscience, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Victoria San Antonio-Arce
- Epilepsy Center, University Medical Center, University of Freiburg, Freiburg, Germany
- European Reference Network EpiCARE
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3
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Beghi E, Giussani G, Costa C, DiFrancesco JC, Dhakar M, Leppik I, Kwan P, Akamatsu N, Cretin B, O'Dwyer R, Kraemer G, Piccenna L, Faught E. The epidemiology of epilepsy in older adults: A narrative review by the ILAE Task Force on Epilepsy in the Elderly. Epilepsia 2023; 64:586-601. [PMID: 36625133 DOI: 10.1111/epi.17494] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 11/21/2022] [Accepted: 12/15/2022] [Indexed: 01/11/2023]
Abstract
In an aging world, it is important to know the burden of epilepsy affecting populations of older persons. We performed a selective review of epidemiological studies that we considered to be most informative, trying to include data from all parts of the world. We emphasized primary reports rather than review articles. We reviewed studies reporting the incidence and prevalence of epilepsy that focused on an older population as well as studies that included a wider age range if older persons were tabulated as a subgroup. There is strong evidence that persons older than approximately 60 years incur an increasing risk of both acute symptomatic seizures and epilepsy. In wealthier countries, the incidence of epilepsy increases sharply after age 60 or 65 years. This phenomenon was not always observed among reports from populations with lower socioeconomic status. This discrepancy may reflect differences in etiologies, methods of ascertainment, or distribution of ages; this is an area for more research. We identified other areas for which there are inadequate data. Incidence data are scarcer than prevalence data and are missing for large areas of the world. Prevalence is lower than would be expected from cumulative incidence, possibly because of remissions, excess mortality, or misdiagnosis of acute symptomatic seizures as epilepsy. Segmentation by age, frailty, and comorbidities is desirable, because "epilepsy in the elderly" is otherwise too broad a concept. Data are needed on rates of status epilepticus and drug-resistant epilepsy using the newer definitions. Many more data are needed from low-income populations and from developing countries. Greater awareness of the high rates of seizures among older adults should lead to more focused diagnostic efforts for individuals. Accurate data on epilepsy among older adults should drive proper allocation of treatments for individuals and resources for societies.
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Affiliation(s)
- Ettore Beghi
- Laboratory of Neurological Disorders, Department of Neuroscience, Mario Negri Institute of Pharmacological Research, Scientific Institute for Research and Health Care, Milan, Italy
| | - Giorgia Giussani
- Laboratory of Neurological Disorders, Department of Neuroscience, Mario Negri Institute of Pharmacological Research, Scientific Institute for Research and Health Care, Milan, Italy
| | - Cinzia Costa
- Section of Neurology, Santa Maria della Misericordia Hospital, Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Jacopo C DiFrancesco
- Department of Neurology, Istituto di Ricovero e Cura a Caraterre Scientifico, San Gerardo Foundation, University of Milan-Bicocca, Monza, Italy
| | - Monica Dhakar
- Department of Neurology, Brown University, Providence, Rhode Island, USA
| | - Ilo Leppik
- Department of Experimental and Clinical Pharmacology, College of Pharmacy, University of Minnesota, Minneapolis, Minnesota, USA
| | - Patrick Kwan
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, Victoria, Australia
| | - Naoki Akamatsu
- Division of Neurology, Neuroscience Center, Fukuoka Samo Hospital, International University of Health and Welfare, Fukuoka, Japan
| | - Benjamin Cretin
- Neuropsychology Unit, Department of Neurology of the University Hospitals of Strasbourg, Strasbourg, France
| | - Rebecca O'Dwyer
- Department of Neurological Sciences, Rush Medical College, Chicago, Illinois, USA
| | | | - Loretta Piccenna
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, Victoria, Australia
- Department of Neurology, Alfred Health, Melbourne, Victoria, Australia
- Department of Medicine, Royal Melbourne Hospital, University of Melbourne, Melbourne, Victoria, Australia
| | - Edward Faught
- Department of Neurology, Emory University, Atlanta, Georgia, USA
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4
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Lemus HN, Sarkis RA. Epilepsy care in nursing facilities: Knowledge gaps and opportunities. Epilepsy Behav 2023; 138:108997. [PMID: 36442262 DOI: 10.1016/j.yebeh.2022.108997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 11/08/2022] [Accepted: 11/09/2022] [Indexed: 11/27/2022]
Abstract
Epilepsy in the elderly is a complex disease, often underdiagnosed, and inadequately treated. It requires a multi-disciplinary approach and care coordination especially if the patient resides in a nursing facility. Episodes of loss of consciousness falls, or amnestic events in those living in a nursing facility require a detailed description and an urgent assessment to rule out an epileptic seizure. Prompt recognition of seizures and the implementation of treatment protocols in those with recurrent seizures are needed to prevent unnecessary emergency visits. Although there is a myriad of antiseizure medications (ASM) to treat seizures, clinicians should be aware of common interactions, side effects, and changes in pharmacodynamics with age. There is a limited number of ASMs that have been properly studied in clinical trials to assess tolerability and efficacy in the elderly, and an over-reliance on enzyme-inducing ASMs. Strategies to improve the knowledge of health care providers include electronic resources, treatment protocols, and improving awareness of the efficacy, drug-drug interaction, and short-term and long-term monitoring of ASM side effects.
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Affiliation(s)
| | - Rani A Sarkis
- Department of Neurology, Brigham and Women's Hospital, Boston, MA, USA
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5
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Samudra N, Ranasinghe K, Kirsch H, Rankin K, Miller B. Etiology and Clinical Significance of Network Hyperexcitability in Alzheimer's Disease: Unanswered Questions and Next Steps. J Alzheimers Dis 2023; 92:13-27. [PMID: 36710680 DOI: 10.3233/jad-220983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Cortical network hyperexcitability related to synaptic dysfunction in Alzheimer's disease (AD) is a potential target for therapeutic intervention. In recent years, there has been increased interest in the prevalence of silent seizures and interictal epileptiform discharges (IEDs, or seizure tendency), with both entities collectively termed "subclinical epileptiform activity" (SEA), on neurophysiologic studies in AD patients. SEA has been demonstrated to be common in AD, with prevalence estimates ranging between 22-54%. Converging lines of basic and clinical evidence imply that modifying a hyperexcitable state results in an improvement in cognition. In particular, though these results require further confirmation, post-hoc findings from a recent phase II clinical trial suggest a therapeutic effect with levetiracetam administration in patients with AD and IEDs. Here, we review key unanswered questions as well as potential clinical trial avenues. Specifically, we discuss postulated mechanisms and treatment of hyperexcitability in patients with AD, which are of interest in designing future disease-modifying therapies. Criteria to prompt screening and optimal screening methodology for hyperexcitability have yet to be defined, as does timing and personalization of therapeutic intervention.
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Affiliation(s)
- Niyatee Samudra
- Memory and Aging Center, University of California, San Francisco, San Francisco, CA, USA
| | - Kamalini Ranasinghe
- Memory and Aging Center, University of California, San Francisco, San Francisco, CA, USA
| | - Heidi Kirsch
- University of California, San Francisco Comprehensive Epilepsy Center, San Francisco, CA, USA
| | - Katherine Rankin
- Memory and Aging Center, University of California, San Francisco, San Francisco, CA, USA
| | - Bruce Miller
- Memory and Aging Center, University of California, San Francisco, San Francisco, CA, USA
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6
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Semiology of epileptic seizures in old age and the differential diagnosis – English Version. ZEITSCHRIFT FÜR EPILEPTOLOGIE 2022. [DOI: 10.1007/s10309-022-00484-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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7
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Bartolini E, Ferrari AR, Lattanzi S, Pradella S, Zaccara G. Drug-resistant epilepsy at the age extremes: Disentangling the underlying etiology. Epilepsy Behav 2022; 132:108739. [PMID: 35636351 DOI: 10.1016/j.yebeh.2022.108739] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 05/02/2022] [Accepted: 05/11/2022] [Indexed: 11/03/2022]
Abstract
The incidence of epilepsy is highest at the extreme age ranges: childhood and elderly age. The most common syndromes in these demographics - self-limited epilepsies of childhood and idiopathic generalized epilepsies in pediatric age, focal epilepsy with structural etiology in older people - are expected to be drug responsive. In this work, we focus on such epilepsy types, overviewing the complex clinical background of unexpected drug-resistance. For self-limited epilepsies of childhood and idiopathic generalized epilepsies, we illustrate drug-resistance resulting from syndrome misinterpretation, reason on possible unexpected courses of epilepsy, and explicate the influence of inappropriate treatments. For elderly-onset epilepsy, we show the challenges in differential diagnosis possibly leading to pseudoresistance and analyze how drug-resistant epilepsy can arise in stroke, neurocognitive disorders, brain tumors, and autoimmune encephalitis. In children and senior people, drug-resistance can be regarded as a hint to review the diagnosis or explore alternative therapeutic strategies. Refractory seizures are not only a therapeutic challenge, but also a cardinal sign not to be overlooked in syndromes commonly deemed to be drug-responsive.
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Affiliation(s)
- Emanuele Bartolini
- Department of Developmental Neuroscience, IRCCS Stella Maris Foundation, Pisa, Italy.
| | - Anna Rita Ferrari
- Department of Developmental Neuroscience, IRCCS Stella Maris Foundation, Pisa, Italy.
| | - Simona Lattanzi
- Neurological Clinic, Department of Experimental and Clinical Medicine, Marche Polytechnic University, Ancona, Italy
| | - Silvia Pradella
- USL Centro Toscana, Neurology Unit, Nuovo Ospedale Santo Stefano, Prato, Italy.
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8
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Aslan M, Gungor S. The Importance of Long-Term Video Electroencephalography Monitoring in the Differential Diagnosis of Epilepsy in Children. Cureus 2022; 14:e25700. [PMID: 35812582 PMCID: PMC9259997 DOI: 10.7759/cureus.25700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/06/2022] [Indexed: 11/05/2022] Open
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9
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Csernus EA, Werber T, Kamondi A, Horvath AA. The Significance of Subclinical Epileptiform Activity in Alzheimer's Disease: A Review. Front Neurol 2022; 13:856500. [PMID: 35444602 PMCID: PMC9013745 DOI: 10.3389/fneur.2022.856500] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 02/21/2022] [Indexed: 01/20/2023] Open
Abstract
Hyperexcitability is a recently recognized contributor to the pathophysiology of Alzheimer's disease (AD). Subclinical epileptiform activity (SEA) is a neurophysiological sign of cortical hyperexcitability; however, the results of the studies in this field vary due to differences in the applied methodology. The aim of this review is to summarize the results of the related studies aiming to describe the characteristic features and significance of subclinical epileptiform discharges in the pathophysiologic process of AD from three different directions: (1) what SEA is; (2) why we should diagnose SEA, and (3) how we should diagnose SEA. We scrutinized both the completed and ongoing antiepileptic drug trials in AD where SEA served as a grouping variable or an outcome measure. SEA seems to appear predominantly in slow-wave sleep and in the left temporal region and to compromise cognitive functions. We clarify using supportive literature the high sensitivity of overnight electroencephalography (EEG) in the detection of epileptiform discharges. Finally, we present the most important research questions around SEA and provide an overview of the possible solutions.
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Affiliation(s)
- Emoke Anna Csernus
- School of PhD Studies, Semmelweis University, Budapest, Hungary
- Neurocognitive Research Center, National Institute of Mental Health, Neurology and Neurosurgery, Budapest, Hungary
| | - Tom Werber
- Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Anita Kamondi
- Neurocognitive Research Center, National Institute of Mental Health, Neurology and Neurosurgery, Budapest, Hungary
- Department of Neurology, Semmelweis University, Budapest, Hungary
| | - Andras Attila Horvath
- Neurocognitive Research Center, National Institute of Mental Health, Neurology and Neurosurgery, Budapest, Hungary
- Department of Anatomy, Histology and Embryology, Semmelweis University, Budapest, Hungary
- *Correspondence: Andras Attila Horvath
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10
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DiFrancesco JC, Labate A, Romoli M, Chipi E, Salvadori N, Galimberti CA, Perani D, Ferrarese C, Costa C. Clinical and Instrumental Characterization of Patients With Late-Onset Epilepsy. Front Neurol 2022; 13:851897. [PMID: 35359649 PMCID: PMC8963711 DOI: 10.3389/fneur.2022.851897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 02/04/2022] [Indexed: 11/13/2022] Open
Abstract
Epilepsy is classically considered a childhood disease. However, it represents the third most frequent neurological condition in the elderly, following stroke, and dementia. With the progressive aging of the general population, the number of patients with Late-Onset Epilepsy (LOE) is constantly growing, with important economic and social consequences, in particular for the more developed countries where the percentage of elderly people is higher. The most common causes of LOE are structural, mainly secondary to cerebrovascular or infectious diseases, brain tumors, trauma, and metabolic or toxic conditions. Moreover, there is a growing body of evidence linking LOE with neurodegenerative diseases, particularly Alzheimer's disease (AD). However, despite a thorough characterization, the causes of LOE remain unknown in a considerable portion of patients, thus termed as Late-Onset Epilepsy of Unknown origin (LOEU). In order to identify the possible causes of the disease, with an important impact in terms of treatment and prognosis, LOE patients should always undergo an exhaustive phenotypic characterization. In this work, we provide a detailed review of the main clinical and instrumental techniques for the adequate characterization of LOE patients in the clinical practice. This work aims to provide an easy and effective tool that supports routine activity of the clinicians facing LOE.
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Affiliation(s)
- Jacopo C. DiFrancesco
- Department of Neurology, ASST S. Gerardo Hospital, School of Medicine and Surgery and Milan Center for Neuroscience, University of Milano - Bicocca, Monza, Italy
- *Correspondence: Jacopo C. DiFrancesco
| | - Angelo Labate
- Neurophysiopathology Unit, Department of Biomedical and Dental Sciences, Morphological and Functional Images (BIOMORF), University of Messina, Messina, Italy
| | - Michele Romoli
- Section of Neurology, S. Maria della Misericordia Hospital, Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Elena Chipi
- Section of Neurology, S. Maria della Misericordia Hospital, Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Nicola Salvadori
- Section of Neurology, S. Maria della Misericordia Hospital, Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | | | - Daniela Perani
- Nuclear Medicine Unit and Division of Neuroscience, San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Carlo Ferrarese
- Department of Neurology, ASST S. Gerardo Hospital, School of Medicine and Surgery and Milan Center for Neuroscience, University of Milano - Bicocca, Monza, Italy
| | - Cinzia Costa
- Section of Neurology, S. Maria della Misericordia Hospital, Department of Medicine and Surgery, University of Perugia, Perugia, Italy
- Cinzia Costa
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11
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Kural MA, Jing J, Fürbass F, Perko H, Qerama E, Johnsen B, Fuchs S, Westover MB, Beniczky S. Accurate identification of EEG recordings with interictal epileptiform discharges using a hybrid approach: Artificial intelligence supervised by human experts. Epilepsia 2022; 63:1064-1073. [PMID: 35184276 PMCID: PMC9148170 DOI: 10.1111/epi.17206] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 02/17/2022] [Accepted: 02/17/2022] [Indexed: 11/28/2022]
Affiliation(s)
- Mustafa Aykut Kural
- Department of Clinical Neurophysiology Danish Epilepsy Centre Filadelfia Dianalund Denmark
- Department of Clinical Neurophysiology Aarhus University Hospital Aarhus Denmark
- Department of Clinical Medicine Aarhus University Aarhus Denmark
| | - Jin Jing
- Department of Neurology Harvard Medical School Massachusetts General Hospital Boston Massachusetts USA
| | - Franz Fürbass
- Center for Health & Bioresources AIT Austrian Institute of Technology GmbH Vienna Austria
| | - Hannes Perko
- Center for Health & Bioresources AIT Austrian Institute of Technology GmbH Vienna Austria
| | - Erisela Qerama
- Department of Clinical Neurophysiology Aarhus University Hospital Aarhus Denmark
- Department of Clinical Medicine Aarhus University Aarhus Denmark
| | - Birger Johnsen
- Department of Clinical Neurophysiology Aarhus University Hospital Aarhus Denmark
- Department of Clinical Medicine Aarhus University Aarhus Denmark
| | - Steffen Fuchs
- Department of Clinical Neurophysiology Aarhus University Hospital Aarhus Denmark
| | - M. Brandon Westover
- Department of Neurology Harvard Medical School Massachusetts General Hospital Boston Massachusetts USA
| | - Sándor Beniczky
- Department of Clinical Neurophysiology Danish Epilepsy Centre Filadelfia Dianalund Denmark
- Department of Clinical Neurophysiology Aarhus University Hospital Aarhus Denmark
- Department of Clinical Medicine Aarhus University Aarhus Denmark
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12
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Tatum WO, Mani J, Jin K, Halford JJ, Gloss D, Fahoum F, Maillard L, Mothersill I, Beniczky S. Minimum standards for inpatient long-term video-EEG monitoring: A clinical practice guideline of the international league against epilepsy and international federation of clinical neurophysiology. Clin Neurophysiol 2021; 134:111-128. [PMID: 34955428 DOI: 10.1016/j.clinph.2021.07.016] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The objective of this clinical practice guideline is to provide recommendations on the indications and minimum standards for inpatient long-term video-electroencephalographic monitoring (LTVEM). The Working Group of the International League Against Epilepsy and the International Federation of Clinical Neurophysiology develop guidelines aligned with the Epilepsy Guidelines Task Force. We reviewed published evidence using The Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) statement. We found limited high-level evidence aimed at specific aspects of diagnosis for LTVEM performed to evaluate patients with seizures and nonepileptic events (see Table S1). For classification of evidence, we used the Clinical Practice Guideline Process Manual of the American Academy of Neurology. We formulated recommendations for the indications, technical requirements, and essential practice elements of LTVEM to derive minimum standards used in the evaluation of patients with suspected epilepsy using GRADE (Grading of Recommendations, Assessment, Development, and Evaluation). Further research is needed to obtain evidence about long-term outcome effects of LTVEM and establish its clinical utility.
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Affiliation(s)
- William O Tatum
- Department of Neurology, Mayo Clinic, Jacksonville, FL, USA.
| | - Jayanti Mani
- Department of Neurology, Kokilaben Dhirubai Ambani Hospital, Mumbai, India
| | - Kazutaka Jin
- Department of Epileptology, Tohoku University Graduate School of Medicine, Japan
| | - Jonathan J Halford
- Department of Neurology, Medical University of South Carolina, Charleston, SC, USA.
| | - David Gloss
- Department of Neurology, Charleston Area Medical Center, Charleston, WV, USA
| | - Firas Fahoum
- Department of Neurology, Tel Aviv Sourasky Medical Center and Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
| | - Louis Maillard
- Department of Neurology, University of Nancy, UMR7039, University of Lorraine, France.
| | - Ian Mothersill
- Department of Clinical Neurophysiology, Swiss Epilepsy Center, Zurich Switzerland.
| | - Sandor Beniczky
- Department of Clinical Neurophysiology, Aarhus University Hospital, Aarhus, Denmark; Danish Epilepsy Center, Dianalund, Denmark.
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13
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Tatum WO, Mani J, Jin K, Halford JJ, Gloss D, Fahoum F, Maillard L, Mothersill I, Beniczky S. Minimum standards for inpatient long-term video-electroencephalographic monitoring: A clinical practice guideline of the International League Against Epilepsy and International Federation of Clinical Neurophysiology. Epilepsia 2021; 63:290-315. [PMID: 34897662 DOI: 10.1111/epi.16977] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 06/09/2021] [Accepted: 06/09/2021] [Indexed: 01/02/2023]
Abstract
The objective of this clinical practice guideline is to provide recommendations on the indications and minimum standards for inpatient long-term video-electroencephalographic monitoring (LTVEM). The Working Group of the International League Against Epilepsy and the International Federation of Clinical Neurophysiology develop guidelines aligned with the Epilepsy Guidelines Task Force. We reviewed published evidence using the PRISMA (Preferred Reporting Items for Systematic Review and Meta-Analysis) statement. We found limited high-level evidence aimed at specific aspects of diagnosis for LTVEM performed to evaluate patients with seizures and nonepileptic events. For classification of evidence, we used the Clinical Practice Guideline Process Manual of the American Academy of Neurology. We formulated recommendations for the indications, technical requirements, and essential practice elements of LTVEM to derive minimum standards used in the evaluation of patients with suspected epilepsy using GRADE (Grading of Recommendations Assessment, Development, and Evaluation). Further research is needed to obtain evidence about long-term outcome effects of LTVEM and to establish its clinical utility.
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Affiliation(s)
- William O Tatum
- Department of Neurology, Mayo Clinic, Jacksonville, Florida, USA
| | - Jayanti Mani
- Department of Neurology, Kokilaben Dhirubai Ambani Hospital, Mumbai, India
| | - Kazutaka Jin
- Department of Epileptology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Jonathan J Halford
- Department of Neurology, Medical University of South Carolina, Charleston, South Carolina, USA
| | - David Gloss
- Department of Neurology, Charleston Area Medical Center, Charleston, West Virginia, USA
| | - Firas Fahoum
- Department of Neurology, Tel Aviv Sourasky Medical Center and Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Louis Maillard
- Department of Neurology, University of Nancy, UMR7039, University of Lorraine, Nancy, France
| | - Ian Mothersill
- Department of Clinical Neurophysiology, Swiss Epilepsy Center, Zurich,, Switzerland
| | - Sandor Beniczky
- Department of Clinical Neurophysiology, Aarhus University Hospital, Aarhus, Denmark.,Danish Epilepsy Center, Dianalund, Denmark
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14
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Geil Kollerup M, Tolstrup G, Schantz Laursen B. Camera-assisted nursing observation of restless patients in an acute care setting, a multi-method feasibility study. Nurs Open 2021; 9:559-568. [PMID: 34672427 PMCID: PMC8685783 DOI: 10.1002/nop2.1097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 09/02/2021] [Accepted: 09/29/2021] [Indexed: 11/09/2022] Open
Abstract
AIM To evaluate the implementation, practicality and acceptability of camera-assisted observation of restless patients in the acute care ward. DESIGN A multi-method feasibility study. METHODS Data consisted of nurses' written records, a brief survey among all nurses and individual interviews with eight nurses. Data analysis encompassed numerical analyses as well as descriptive content analysis. FINDINGS Camera-assisted observation was implemented by 44 patients from 60-95 years old, for 6 months. The practicality was enhanced by equipment that was easy to operate but the nurses were hampered by carrying the institutional mobile phone while caring for other patients. The intervention's acceptability depended on its potential for improved patient safety and the ability to adjust nursing care to meet the patients' needs as this could enhance feelings of confidence and control.
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Affiliation(s)
- Mette Geil Kollerup
- Clinic for Internal and Emergency Medicine, Aalborg University Hospital, Aalborg, Denmark.,Clinical Nursing Research Unit, Aalborg University Hospital, Aalborg, Denmark
| | - Gitte Tolstrup
- Acute Medical Ward, Clinic for Internal and Emergency Medicine, Aalborg University Hospital, Aalborg, Denmark
| | - Birgitte Schantz Laursen
- Clinical Nursing Research Unit, Aalborg University Hospital, Aalborg, Denmark.,Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
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Title: Functional seizures across the adult lifespan: female sex, delay to diagnosis and disability. Seizure 2021; 91:476-483. [PMID: 34343859 DOI: 10.1016/j.seizure.2021.07.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 07/21/2021] [Accepted: 07/23/2021] [Indexed: 11/21/2022] Open
Abstract
OBJECTIVE The clinical characteristics of functional seizures may vary based on age-of-onset or age-of-presentation. Description of age-related differences has focused on three categories: pediatric, young-adult, and older-adult. We evaluated how factors continuously varied based on age-of-presentation across the adult lifespan. METHODS Based on cross-sectional data from 365 adult (18 to 88 years old) patients with documented diagnoses of functional seizures, we evaluated how the quantity and prevalence of specific ictal behaviors, historical factors, and comorbidities varied based on patient age-of-presentation using sequential weighted averages. RESULTS Four factors changed prominently with age-of-presentation: female predominance decreased at two inflection points - ages 35 and 62; the prevalence of work disability was higher until age-of-presentation 30 then plateaued at 80%; there was greater delay to diagnosis in older patients; and comorbidities was higher with age-of-presentation, starting from early adulthood. The proportion of patients who presented with functional seizures decreased after 50. Ictal behavior did not substantially vary with age-of-presentation. CONCLUSION The time from onset to diagnosis increased with age-of-presentation, which may be related to increased comorbidities and the misconception that FS do not start in older age. The female predominance decreased nonlinearly with age. By age 30, most patients' seizures already had substantial association with unemployment. These findings emphasize that patients can develop functional seizures at any age. The rapid development of disability relatively early in life, which then stays at a high prevalence rate, demonstrates the need for prompt referral for definitive diagnosis and treatment.
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16
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Beniczky S, Husain A, Ikeda A, Alabri H, Helen Cross J, Wilmshurst J, Seeck M, Focke N, Braga P, Wiebe S, Schuele S, Trinka E. Importance of access to epilepsy monitoring units during the COVID-19 pandemic: Consensus statement of the International League against epilepsy and the International Federation of Clinical Neurophysiology. Clin Neurophysiol 2021; 132:2248-2250. [PMID: 34275732 PMCID: PMC8294085 DOI: 10.1016/j.clinph.2021.05.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Restructuring of healthcare services during the COVID-19 pandemic has led to lockdown of Epilepsy Monitoring Units (EMUs) in many hospitals. The ad-hoc taskforce of the International League Against Epilepsy (ILAE) and the International Federation of Clinical Neurophysiology (IFCN) highlights the detrimental effect of postponing video-EEG monitoring of patients with epilepsy and other paroxysmal events. The taskforce calls for action to continue functioning of Epilepsy Monitoring Units during emergency situations, such as the COVID-19 pandemic. Long-term video-EEG monitoring is an essential diagnostic service. Access to video-EEG monitoring of the patients in the EMUs must be given high priority. Patients should be screened for COVID-19, before admission, according to the local regulations. Local policies for COVID-19 infection control should be adhered to during the video-EEG monitoring. In cases of differential diagnosis where reduction of antiseizure medication is not required, consider home video-EEG monitoring as an alternative in selected patients.
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Affiliation(s)
- Sándor Beniczky
- Department of Clinical Neurophysiology, Neurology, Aarhus University Hospital, Aarhus and Danish Epilepsy Centre, Dianalund, Denmark.
| | - Aatif Husain
- Department of Neurology, Duke University Medical Center, Durham, NC, USA; Neurodiagnostic Center, Veterans Affairs Medical Center, Durham, NC, USA
| | - Akio Ikeda
- Department of Epilepsy, Movement Disorders and Physiology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Haifa Alabri
- Neurology Unit, Department of Medicine, Sultan Qaboos University Hospital, Sultan Qaboos University, Oman
| | - J Helen Cross
- UCL NIHR BRC Great Ormond Street Institute of Child Health, Great Ormond Street Hospital for Children, London, Member of ERN EpiCARE, and Young Epilepsy Lingfield, UK
| | - Jo Wilmshurst
- Department of Paediatric Neurology, Red Cross War Memorial Children's Hospital, Neuroscience Institute, University of Cape Town, South Africa
| | - Margitta Seeck
- EEG & Epilepsy Unit, University Hospital of Geneva, Medical Faculty of the University of Geneva, Switzerland
| | - Niels Focke
- Department of Neurology, University Medical Center, Göttingen, Germany
| | - Patricia Braga
- Institute of Neurology, Hospital de Clínicas, Facultad de Medicina, Universidad de la República, Uruguay
| | - Samuel Wiebe
- Department of Clinical Neurosciences, University of Calgary, Canada
| | - Stephan Schuele
- Department of Neurology, Northwestern University, Feinberg School of Medicine, Chicago, USA
| | - Eugen Trinka
- Department of Neurology, Christian Doppler University Hospital, Paracelsus Medical University and Centre for Cognitive Neuroscience, Salzburg, Austria; Affiliated EpiCARE Partner, Neuroscience Institute, Christian Doppler University Hospital, Salzburg, Austria; Department of Public Health, Health Services Research and Health Technology Assessment, UMIT - University for Health Sciences, Medical Informatics and Technology, Hall in Tirol, Austria
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17
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Hew A, Lloyd M, Rayner G, Matson A, Rychkova M, Ali R, Winton-Brown T, Perucca P, Kwan P, O'Brien TJ, Velakoulis D, Malpas CB, Loi SM. Psychiatric and cognitive characteristics of older adults admitted to a Video-EEG monitoring (VEM) unit. Epilepsy Behav 2021; 120:107987. [PMID: 33979768 DOI: 10.1016/j.yebeh.2021.107987] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 03/20/2021] [Accepted: 04/07/2021] [Indexed: 11/08/2022]
Abstract
OBJECTIVE To compare the clinical, psychiatric, and cognitive characteristics of older with younger patients presenting to a video-EEG monitoring (VEM) unit. METHOD This was a retrospective case-control study involving patients admitted for VEM over a two-year period (from April 2018 to April 2020) at two comprehensive epilepsy units. Patients were categorized into an older (≥60 years) and a younger (<60 years) group. Younger patients were individually matched to older adults to form a matched younger group. Diagnosis was determined by a consensus opinion of epileptologists, neurologists, and neuropsychiatrists. The main diagnostic categories were epilepsy, psychogenic nonepileptic seizures (PNES), and 'other' diagnosis (non-diagnostic and other nonepileptic diagnoses). Clinical psychiatric diagnoses were obtained from neuropsychiatric reports. Objective cognitive function was measured with the Neuropsychiatry Unit Cognitive Assessment Tool (NUCOG). Subjective cognitive function was assessed using the Quality of Life in Epilepsy Inventory-89 (QOLIE-89) cognitive subscales. RESULTS Five-hundred and thirty three patients (71 older, 462 younger) aged 16-91 years were admitted to the VEM unit during the study period. There was a diagnosis of focal epilepsy in 55% of the older group and 48% of the younger group, generalized epilepsy in 3% of the older group and 10% of the younger group, and 'other' in 32% of the older group and 19% of the younger group. Ten percent (2 males and 5 females) of the older group were diagnosed with PNES compared to 22% of the younger group (p = 0.016). A depressive disorder was diagnosed in 34% of the older group and 24% of the younger group (p = 0.20). An anxiety disorder was diagnosed in 15% of the older group and 25% of the younger group (p = 0.15). Mild neurocognitive disorder was more common in the older group (34%) compared to the matched younger group (34% vs 3%, p < 0.001). The older group had lower mean NUCOG scores compared to the matched younger group (79.49 vs 87.73, p = <0.001). There was no evidence for a relationship between mean NUCOG score and overall subjective cognitive difficulties for the older group (r = 0.03, p = 0.83). Among older adults, those diagnosed with PNES had more experiences of childhood trauma. Measures of dissociation, depression, or general anxiety did not differ between PNES and non-PNES diagnoses in the older group. CONCLUSION Psychiatric comorbidities are common among older adults admitted for VEM. The psychological impact of epilepsy and risk factors for PNES seen in younger patients are also applicable in the older group. The older group demonstrated more cognitive impairments than the younger group, although these were usually unrecognized by individuals. Older adults admitted to VEM will benefit from psychiatric and neuropsychological input to ensure a comprehensive care approach to evaluation and management.
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Affiliation(s)
- Anthony Hew
- Department of Neuropsychiatry, The Royal Melbourne Hospital, Parkville, Australia.
| | - Michael Lloyd
- Department of Psychiatry, Alfred Health, Prahran, Australia
| | - Genevieve Rayner
- Melbourne School of Psychological Sciences, The University of Melbourne, Australia; Department of Neurosciences, Alfred Health, Australia; Department of Medicine, Austin Hospital, The University of Melbourne
| | - Alice Matson
- Melbourne School of Psychological Sciences, The University of Melbourne, Australia
| | - Maria Rychkova
- Department of Medicine (RMH), The University of Melbourne, Australia; Department of Neurosciences, Monash University, Australia; Department of Neurology, Alfred Health, Prahran, Australia
| | - Rashida Ali
- Department of Medicine (RMH), The University of Melbourne, Australia; Department of Neurosciences, Monash University, Australia; Department of Neurology, Alfred Health, Prahran, Australia
| | | | - Piero Perucca
- Department of Medicine (RMH), The University of Melbourne, Australia; Department of Neurology, Royal Melbourne Hospital, Parkville, Australia; Department of Neurosciences, Monash University, Australia; Department of Neurology, Alfred Health, Prahran, Australia
| | - Patrick Kwan
- Department of Medicine (RMH), The University of Melbourne, Australia; Department of Neurology, Royal Melbourne Hospital, Parkville, Australia; Department of Neurosciences, Monash University, Australia; Department of Neurology, Alfred Health, Prahran, Australia
| | - Terence J O'Brien
- Department of Medicine (RMH), The University of Melbourne, Australia; Department of Neurology, Royal Melbourne Hospital, Parkville, Australia; Department of Neurosciences, Monash University, Australia; Department of Neurology, Alfred Health, Prahran, Australia
| | - Dennis Velakoulis
- Department of Neuropsychiatry, The Royal Melbourne Hospital, Parkville, Australia; Melbourne Neuropsychiatry Centre, University of Melbourne and NorthWestern Mental Health, Melbourne, VIC, Australia; Department of Psychiatry, University of Melbourne, Australia
| | - Charles B Malpas
- Department of Medicine (RMH), The University of Melbourne, Australia; Department of Neurology, Royal Melbourne Hospital, Parkville, Australia; Melbourne School of Psychological Sciences, The University of Melbourne, Australia
| | - Samantha M Loi
- Department of Medicine (RMH), The University of Melbourne, Australia; Department of Neurology, Royal Melbourne Hospital, Parkville, Australia; Melbourne School of Psychological Sciences, The University of Melbourne, Australia
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18
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Prospective evaluation of interrater agreement between EEG technologists and neurophysiologists. Sci Rep 2021; 11:13406. [PMID: 34183718 PMCID: PMC8238944 DOI: 10.1038/s41598-021-92827-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 06/16/2021] [Indexed: 11/22/2022] Open
Abstract
We aim to prospectively investigate, in a large and heterogeneous population, the electroencephalogram (EEG)-reading performances of EEG technologists. A total of 8 EEG technologists and 5 certified neurophysiologists independently analyzed 20-min EEG recordings. Interrater agreement (IRA) for predefined EEG pattern identification between EEG technologists and neurophysiologits was assessed using percentage of agreement (PA) and Gwet-AC1. Among 1528 EEG recordings, the PA [95% confidence interval] and interrater agreement (IRA, AC1) values were as follows: status epilepticus (SE) and seizures, 97% [96–98%], AC1 kappa = 0.97; interictal epileptiform discharges, 78% [76–80%], AC1 = 0.63; and conclusion dichotomized as “normal” versus “pathological”, 83.6% [82–86%], AC1 = 0.71. EEG technologists identified SE and seizures with 99% [98–99%] negative predictive value, whereas the positive predictive values (PPVs) were 48% [34–62%] and 35% [20–53%], respectively. The PPV for normal EEGs was 72% [68–76%]. SE and seizure detection were impaired in poorly cooperating patients (SE and seizures; p < 0.001), intubated and older patients (SE; p < 0.001), and confirmed epilepsy patients (seizures; p = 0.004). EEG technologists identified ictal features with few false negatives but high false positives, and identified normal EEGs with good PPV. The absence of ictal features reported by EEG technologists can be reassuring; however, EEG traces should be reviewed by neurophysiologists before taking action.
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Horvath AA, Papp A, Zsuffa J, Szucs A, Luckl J, Radai F, Nagy F, Hidasi Z, Csukly G, Barcs G, Kamondi A. Subclinical epileptiform activity accelerates the progression of Alzheimer's disease: A long-term EEG study. Clin Neurophysiol 2021; 132:1982-1989. [PMID: 34034963 DOI: 10.1016/j.clinph.2021.03.050] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 02/11/2021] [Accepted: 03/29/2021] [Indexed: 12/19/2022]
Abstract
OBJECTIVE While many studies suggest that patients with Alzheimer's disease have a higher chance for developing epileptic seizures, only a few studies are available examining independent epileptic discharges. The major aims of our study was to determine the prevalence of subclinical epileptiform activity (SEA) in AD compared to healthy elderly controls with the hypothesis that SEA is more frequent in AD than in cognitively normal individuals. Another aim was to analyze the effect of baseline SEA captured with electroencephalography on the progression of the disease with longitudinal cognitive testing. METHODS We investigated 52 Alzheimer patients with no history of epileptic seizures and 20 healthy individuals. All participants underwent a 24-hour electroencephalography, neurology, neuroimaging and neuropsychology examination. Two independent raters analyzed visually the electroencephalograms and both raters were blind to the diagnoses. Thirty-eight Alzheimer patients were enrolled in a 3-year long prospective follow-up study with yearly repeated cognitive evaluation. RESULTS Subclinical epileptiform discharges were recorded significantly (p:0.018) more frequently in Alzheimer patients (54%) than in healthy elderly (25%). Epileptiform discharges were associated with lower performance scores in memory. Alzheimer patients with spikes showed 1.5-times faster decline in global cognitive scores than patients without (p < 0.001). The decline in cognitive performance scores showed a significant positive correlation with spike frequency (r:+0.664; p < 0.001). CONCLUSIONS Subclinical epileptiform activity occurs in half of Alzheimer patients who have never suffered epileptic seizures. Alzheimer patients with subclinical epileptiform activity showed accelerated cognitive decline with a strong relation to the frequency and spatial distribution (left temporal) of spikes. SIGNIFICANCE Our findings suggest the prominent role of epileptiform discharges in the pathomechanism of Alzheimer's disease which might serve as potential therapeutic target.
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Affiliation(s)
- Andras Attila Horvath
- National Institute of Clinical Neurosciences, Department of Neurology Budapest, Hungary; Semmelweis University, Department of Anatomy Histology and Embryology, Budapest, Hungary.
| | - Aniko Papp
- National Institute of Clinical Neurosciences, Department of Neurology Budapest, Hungary; Semmelweis University, School of PhD Studies, Budapest, Hungary
| | - Janos Zsuffa
- János Zsuffa, Zsuffa-Med Ltd., Budapest, Hungary
| | - Anna Szucs
- National Institute of Clinical Neurosciences, Department of Neurology Budapest, Hungary
| | - Janos Luckl
- Department of Neurology, Kaposi Mór County Hospital, Kaposvár, Hungary
| | - Ferenc Radai
- Department of Neurology, Kaposi Mór County Hospital, Kaposvár, Hungary
| | - Ferenc Nagy
- Department of Neurology, Kaposi Mór County Hospital, Kaposvár, Hungary
| | - Zoltan Hidasi
- Semmelweis University, Department of Psychiatry and Psychotherapy, Budapest, Hungary
| | - Gabor Csukly
- Semmelweis University, Department of Psychiatry and Psychotherapy, Budapest, Hungary
| | - Gabor Barcs
- National Institute of Clinical Neurosciences, Department of Neurology Budapest, Hungary
| | - Anita Kamondi
- National Institute of Clinical Neurosciences, Department of Neurology Budapest, Hungary; Semmelweis University Department of Neurology, Budapest, Hungary
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20
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Kural MA, Qerama E, Johnsen B, Fuchs S, Beniczky S. The influence of the abundance and morphology of epileptiform discharges on diagnostic accuracy: How many spikes you need to spot in an EEG. Clin Neurophysiol 2021; 132:1543-1549. [PMID: 34030055 DOI: 10.1016/j.clinph.2021.03.045] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 02/04/2021] [Accepted: 03/04/2021] [Indexed: 11/16/2022]
Abstract
OBJECTIVE The operational definition of interictal epileptiform discharges (IEDs) of the International Federation of Clinical Neurophysiology (IFCN) described six morphological criteria. Our objective was to assess the impact of pattern-repetition in the EEG-recording, on the diagnostic accuracy of using the IFCN criteria. For clinical implementation, specificity over 95% was set as target. METHODS Interictal EEG-recordings of 20-minutes, containing sharp-transients, from 60 patients (30 with epilepsy and 30 with non-epileptic paroxysmal events) were evaluated by three experts, who first marked IEDs solely based on expert opinion, and then, independently from the first session evaluated the presence of the IFCN criteria for each sharp-transient. The gold standard was derived from long-term video-EEG recordings of the patientś habitual paroxysmal episodes. RESULTS Presence of at least one discharge fulfilling five criteria provided a specificity of 100% (sensitivity: 70%). For discharges fulfilling fewer criteria, a higher number of discharges was needed to keep the specificity over 95% (5 discharges, when only 3 criteria were fulfilled). A sequential combination of these sets of criteria and thresholds provided a specificity of 97% and sensitivity of 80%. CONCLUSIONS Pattern-repetition and IED morphology influence diagnostic accuracy. SIGNIFICANCE Systematic application of these criteria will improve quality of clinical EEG interpretation.
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Affiliation(s)
- Mustafa Aykut Kural
- Department of Clinical Neurophysiology, Aarhus University Hospital, Aarhus, Denmark
| | - Erisela Qerama
- Department of Clinical Neurophysiology, Aarhus University Hospital, Aarhus, Denmark
| | - Birger Johnsen
- Department of Clinical Neurophysiology, Aarhus University Hospital, Aarhus, Denmark
| | - Steffen Fuchs
- Department of Clinical Neurophysiology, Aarhus University Hospital, Aarhus, Denmark
| | - Sándor Beniczky
- Department of Clinical Neurophysiology, Aarhus University Hospital, Aarhus, Denmark; Department of Clinical Neurophysiology, Danish Epilepsy Centre, Dianalund, Denmark; and Department of Clinical Medicine, Aarhus University, Denmark.
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21
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Kerr WT, Zhang X, Hill CE, Janio EA, Chau AM, Braesch CT, Le JM, Hori JM, Patel AB, Allas CH, Karimi AH, Dubey I, Sreenivasan SS, Gallardo NL, Bauirjan J, Hwang ES, Davis EC, D'Ambrosio SR, Al Banna M, Cho AY, Dewar SR, Engel J, Feusner JD, Stern JM. Factors associated with delay to video-EEG in dissociative seizures. Seizure 2021; 86:155-160. [PMID: 33621828 DOI: 10.1016/j.seizure.2021.02.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/23/2021] [Accepted: 02/12/2021] [Indexed: 01/31/2023] Open
Abstract
PURPOSE While certain clinical factors suggest a diagnosis of dissociative seizures (DS), otherwise known as functional or psychogenic nonepileptic seizures (PNES), ictal video-electroencephalography monitoring (VEM) is the gold standard for diagnosis. Diagnostic delays were associated with worse quality of life and more seizures, even after treatment. To understand why diagnoses were delayed, we evaluated which factors were associated with delay to VEM. METHODS Using data from 341 consecutive patients with VEM-documented dissociative seizures, we used multivariate log-normal regression with recursive feature elimination (RFE) and multiple imputation of some missing data to evaluate which of 76 clinical factors were associated with time from first dissociative seizure to VEM. RESULTS The mean delay to VEM was 8.4 years (median 3 years, IQR 1-10 years). In the RFE multivariate model, the factors associated with longer delay to VEM included more past antiseizure medications (0.19 log-years/medication, standard error (SE) 0.05), more medications for other medical conditions (0.06 log-years/medication, SE 0.03), history of physical abuse (0.75 log-years, SE 0.27), and more seizure types (0.36 log-years/type, SE 0.11). Factors associated with shorter delay included active employment or student status (-1.05 log-years, SE 0.21) and higher seizure frequency (0.14 log-years/log[seizure/month], SE 0.06). CONCLUSIONS Patients with greater medical and seizure complexity had longer delays. Delays in multiple domains of healthcare can be common for victims of physical abuse. Unemployed and non-student patients may have had more barriers to access VEM. These results support earlier referral of complex cases to a comprehensive epilepsy center.
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Affiliation(s)
- Wesley T Kerr
- Department of Neurology, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States; Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA, United States.
| | - Xingruo Zhang
- Department of Neurology, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States
| | - Chloe E Hill
- Department of Neurology, University of Michigan, Ann Arbor, MI, United States
| | - Emily A Janio
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA, United States
| | - Andrea M Chau
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA, United States
| | - Chelsea T Braesch
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA, United States
| | - Justine M Le
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA, United States
| | - Jessica M Hori
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA, United States
| | - Akash B Patel
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA, United States
| | - Corinne H Allas
- Department of Neurology, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States; Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA, United States
| | - Amir H Karimi
- Department of Neurology, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States; Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA, United States
| | - Ishita Dubey
- Department of Neurology, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States; Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA, United States
| | - Siddhika S Sreenivasan
- Department of Neurology, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States; Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA, United States
| | - Norma L Gallardo
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA, United States
| | - Janar Bauirjan
- Department of Neurology, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States
| | - Eric S Hwang
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA, United States
| | - Emily C Davis
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA, United States
| | - Shannon R D'Ambrosio
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA, United States
| | - Mona Al Banna
- Department of Neurology, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States
| | - Andrew Y Cho
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA, United States
| | - Sandra R Dewar
- Department of Neurology, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States
| | - Jerome Engel
- Department of Neurology, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States; Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA, United States; Department of Neurobiology, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States; Brain Research Institute, University of California Los Angeles, Los Angeles, CA, United States
| | - Jamie D Feusner
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA, United States
| | - John M Stern
- Department of Neurology, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States
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22
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Bruno J, Machado J, Auxéméry Y. From epileptic hysteria to psychogenic non epileptic seizure: Continuity or discontinuity for contemporary psychiatry? EUROPEAN JOURNAL OF TRAUMA & DISSOCIATION 2021. [DOI: 10.1016/j.ejtd.2020.100190] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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23
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Fukuma K, Kajimoto K, Tanaka T, Takaya S, Kobayashi K, Shimotake A, Matsumoto R, Ikeda A, Toyoda K, Ihara M. Visualizing prolonged hyperperfusion in post-stroke epilepsy using postictal subtraction SPECT. J Cereb Blood Flow Metab 2021; 41:146-156. [PMID: 32065077 PMCID: PMC7747161 DOI: 10.1177/0271678x20902742] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Diagnosis of post-stroke epilepsy is often challenging because of a low incidence of epileptiform abnormalities on electroencephalography (EEG). Hence, this study evaluated whether postictal subtraction single-photon emission computed tomography (SPECT) could visualize epileptic activity and act as a diagnostic modality in post-stroke epilepsy. Fifty post-stroke epilepsy patients, who had undergone Tc-99m-ECD SPECT twice (postictal and interictal), were enrolled. The postictal hyperperfusion area was identified by subtraction (postictal-interictal) SPECT and classified into two distribution types: superficial or deep-seated. Laterality and distribution of postictal hyperperfusion on subtraction SPECT were compared with stroke lesions, seizure symptoms, and epileptiform EEG findings. Forty-three of the 50 patients (86%) had hyperperfusion on subtraction SPECT and 26 (52%) had epileptiform EEG findings. Subtraction SPECT showed prolonged postictal hyperperfusion despite the relatively long interval between seizure end and postictal SPECT (median: 19.1 h, range: 2.2-112.5 h). The laterality of the hyperperfusion area had a high concordance rate with the laterality of stroke lesions (97.7%), seizure symptoms (91.9%), and epileptiform EEG findings (100%). Scalp EEG identified epileptiform activity more frequently in superficial type of SPECT, but less frequently in deep-seated type (both, P = 0.03). Postictal SPECT can be complementary to scalp EEG in endorsing the diagnosis and location of post-stroke epilepsy.
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Affiliation(s)
- Kazuki Fukuma
- Department of Neurology, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Katsufumi Kajimoto
- Department of Neurology, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Tomotaka Tanaka
- Department of Neurology, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Shigetoshi Takaya
- Department of Neurology, Senri Rehabilitation Hospital, Osaka, Japan.,Department of Rehabilitation Medicine, Senri Rehabilitation Hospital, Osaka, Japan
| | - Katsuya Kobayashi
- Department of Neurology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Akihiro Shimotake
- Department of Epilepsy, Movement Disorders and Physiology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Riki Matsumoto
- Department of Neurology, Kyoto University Graduate School of Medicine, Kyoto, Japan.,Division of Neurology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Akio Ikeda
- Department of Epilepsy, Movement Disorders and Physiology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Kazunori Toyoda
- Department of Cerebrovascular Medicine, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Masafumi Ihara
- Department of Neurology, National Cerebral and Cardiovascular Center, Osaka, Japan
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24
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Abstract
AbstractEpilepsy is a common neurological disease that not only causes difficulties in the work and life activities of patients, but also brings complex social problems. Cerebrovascular disease is currently the main cause of epilepsy in the elderly. With the increased survival rate of patients after stroke, the incidence of epilepsy after stroke has also increased. Effective prediction of epilepsy after stroke is extremely crucial for the prognosis of patients, the initiation of antiepileptic therapy and the reduction of epileptic seizures. In this review, we summarize and compare the current models for the prediction of epilepsy after stroke, including the SeLECT prediction model, Post-Stroke Epilepsy Risk Scale (PoSERS), CAVE score, electroencephalogram (EEG) prediction model, and Scandinavian Stroke Scale (SSS) score, in order to provide reference for clinical practice and future research. Prediction models can be selected based on the clinical classification of cerebrovascular events. The SeLECT score prognostic model is a better choice for ischemic stroke, especially for the exclusive prediction of mild post stroke epilepsy. The CAVE score model is suitable for intra-cerebral hemorrhage patients. It is simple and offers high correlation between the risk factors and epilepsy. The PoSERS score simultaneously predicts ischemic and hemorrhagic stroke, and is superior to other methods in specificity as well as positive and negative prediction rate. The SSS score, which only measures stroke severity, is not strictly considered as a mature predictor, but it can be used as a first step screening tool. A growing number of large studies are under the way to identify risk factors of poststroke epilepsy (PSE) and to improve the inclusion of predictive indicators. New and advanced findings by EEG recordings may further improve the prediction of PSE.
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O'Dwyer R. Epilepsy: Workup and Management in Adults. Semin Neurol 2020; 40:624-637. [PMID: 33176373 DOI: 10.1055/s-0040-1719069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
When managing epilepsy, there is a temptation to focus care with respect to the last and the next seizure. However, epilepsy is a multifaceted chronic condition and should be treated as such. Epilepsy comes with many physical risks, psychological effects, and socioeconomic ramifications, demanding a long-term commitment from the treating physician. Patients with epilepsy, compared to other chronically ill patient populations, have a worse quality of life, family function, and less social support. The majority of patients are well controlled on antiseizure drugs. However, approximately one-third will continue to have seizures despite optimized medical management. The primary aim of this article is to explore the long-term management of chronic epilepsy, and to address some of the particular needs of patients with chronic epilepsy.
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Affiliation(s)
- Rebecca O'Dwyer
- Department of Neurological Science, Rush University Medical Center, Chicago, Illinois
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Psychiatric co-morbidities and factors associated with psychogenic non-epileptic seizures: a case–control study. Seizure 2020; 81:325-331. [DOI: 10.1016/j.seizure.2020.05.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 05/04/2020] [Accepted: 05/07/2020] [Indexed: 01/03/2023] Open
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Kural MA, Tankisi H, Duez L, Sejer Hansen V, Udupi A, Wennberg R, Rampp S, Larsson PG, Schulz R, Beniczky S. Optimized set of criteria for defining interictal epileptiform EEG discharges. Clin Neurophysiol 2020; 131:2250-2254. [PMID: 32731161 DOI: 10.1016/j.clinph.2020.06.026] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 05/15/2020] [Accepted: 06/14/2020] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To find and validate the optimal combination of criteria that define interictal epileptiform EEG discharges (IEDs). Our target was a specificity over 95%, to avoid over-reading in clinical EEG. METHODS We constructed 63 combinations of the six criteria from the operational definition of IEDs, recently issued in the EEG-glossary of the International Federation of Clinical Neurophysiology (IFCN). The diagnostic gold standard was derived from video-EEG recordings. In a testing EEG dataset from 100 patients, we selected the best performing combinations of criteria and then we validated them in an independent dataset from 70 patients. We compared their performance with subjective, expert-scorings and we determined inter-rater agreement (IRA). RESULTS Without using criteria, the specificity of expert-scorings was lower than the pre-defined threshold (86%). The best performing combination of criteria was the following: waves with spiky morphology, followed by a slow-afterwave and voltage map suggesting a source in the brain. In the validation dataset this achieved a specificity of 97% and a sensitivity of 89%. IRA was substantial. CONCLUSIONS The optimized set of criteria for defining IEDs has high accuracy and IRA. SIGNIFICANCE Using these criteria will contribute to decreasing over-reading of EEG and avoid misdiagnosis of epilepsy.
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Affiliation(s)
- Mustafa Aykut Kural
- Department of Clinical Neurophysiology, Aarhus University Hospital, Aarhus, Denmark
| | - Hatice Tankisi
- Department of Clinical Neurophysiology, Aarhus University Hospital, Aarhus, Denmark
| | - Lene Duez
- Department of Clinical Neurophysiology, Aarhus University Hospital, Aarhus, Denmark
| | - Vibeke Sejer Hansen
- Department of Clinical Neurophysiology, Aarhus University Hospital, Aarhus, Denmark
| | - Aparna Udupi
- Section for Biostatistics, Department of Public Health, Aarhus University, Denmark
| | - Richard Wennberg
- Krembil Brain Institute, Toronto Western Hospital, University of Toronto, Toronto, Canada
| | - Stefan Rampp
- Department of Neurosurgery, University Hospital Erlangen, Germany and Department of Neurosurgery, University Hospital Halle (Saale), Germany
| | - Pål G Larsson
- Department of Neurosurgery, Rikshospitalet, Oslo University Hospital, Oslo, Norway
| | | | - Sándor Beniczky
- Department of Clinical Neurophysiology, Aarhus University Hospital, Aarhus, Denmark; Department of Clinical Neurophysiology, Danish Epilepsy Centre, Dianalund, Denmark; Department of Clinical Medicine, Aarhus University, Denmark.
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Kural MA, Duez L, Sejer Hansen V, Larsson PG, Rampp S, Schulz R, Tankisi H, Wennberg R, Bibby BM, Scherg M, Beniczky S. Criteria for defining interictal epileptiform discharges in EEG: A clinical validation study. Neurology 2020; 94:e2139-e2147. [PMID: 32321764 PMCID: PMC7526669 DOI: 10.1212/wnl.0000000000009439] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 12/10/2019] [Indexed: 12/04/2022] Open
Abstract
Objective To define and validate criteria for accurate identification of EEG interictal epileptiform discharges (IEDs) using (1) the 6 sensor space criteria proposed by the International Federation of Clinical Neurophysiology (IFCN) and (2) a novel source space method. Criteria yielding high specificity are needed because EEG over-reading is a common cause of epilepsy misdiagnosis. Methods Seven raters reviewed EEG sharp transients from 100 patients with and without epilepsy (diagnosed definitively by video-EEG recording of habitual events). Raters reviewed the transients, randomized, and classified them as epileptiform or nonepileptiform in 3 separate rounds: in 2, EEG was reviewed in sensor space (scoring the presence/absence of each IFCN criterion for each transient or classifying unrestricted by criteria [expert scoring]); in the other, review and classification were performed in source space. Results Cutoff values of 4 and 5 criteria in sensor space and analysis in source space provided high accuracy (91%, 88%, and 90%, respectively), similar to expert scoring (92%). Two methods had specificity exceeding the desired threshold of 95%: using 5 IFCN criteria as cutoff and analysis in source space (both 95.65%); the sensitivity of these methods was 81.48% and 85.19%, respectively. Conclusions The presence of 5 IFCN criteria in sensor space and analysis in source space are optimal for clinical implementation. By extracting these objective features, diagnostic accuracy similar to expert scorings is achieved. Classification of evidence This study provides Class III evidence that IFCN criteria in sensor space and analysis in source space have high specificity (>95%) and sensitivity (81%–85%) for identification of IEDs.
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Affiliation(s)
- Mustafa Aykut Kural
- From the Department of Clinical Neurophysiology (M.A.K., L.D., V.S.H., H.T., S.B.), Aarhus University Hospital, Aarhus, Denmark; Department of Neurosurgery (P.G.L.), Rikshospitalet, Oslo University Hospital, Norway; Department of Neurosurgery (S.R.), University Hospital Erlangen, Germany; Department of Neurosurgery (S.R.), University Hospital Halle (Saale), Germany; Epilepsy Center Bethel (R.S.), Mara Hospital, Bielefeld, Germany; Krembil Brain Institute (R.W.), Toronto Western Hospital, University of Toronto, Canada; Department of Biostatistics (B.M.B.), Aarhus University, Denmark; Department of Research (M.S.), BESA GmbH, Gräfelfing, Germany; Department of Clinical Neurophysiology (S.B.), Danish Epilepsy Centre, Dianalund, Denmark; and Department of Clinical Medicine (S.B.), Aarhus University, Denmark
| | - Lene Duez
- From the Department of Clinical Neurophysiology (M.A.K., L.D., V.S.H., H.T., S.B.), Aarhus University Hospital, Aarhus, Denmark; Department of Neurosurgery (P.G.L.), Rikshospitalet, Oslo University Hospital, Norway; Department of Neurosurgery (S.R.), University Hospital Erlangen, Germany; Department of Neurosurgery (S.R.), University Hospital Halle (Saale), Germany; Epilepsy Center Bethel (R.S.), Mara Hospital, Bielefeld, Germany; Krembil Brain Institute (R.W.), Toronto Western Hospital, University of Toronto, Canada; Department of Biostatistics (B.M.B.), Aarhus University, Denmark; Department of Research (M.S.), BESA GmbH, Gräfelfing, Germany; Department of Clinical Neurophysiology (S.B.), Danish Epilepsy Centre, Dianalund, Denmark; and Department of Clinical Medicine (S.B.), Aarhus University, Denmark
| | - Vibeke Sejer Hansen
- From the Department of Clinical Neurophysiology (M.A.K., L.D., V.S.H., H.T., S.B.), Aarhus University Hospital, Aarhus, Denmark; Department of Neurosurgery (P.G.L.), Rikshospitalet, Oslo University Hospital, Norway; Department of Neurosurgery (S.R.), University Hospital Erlangen, Germany; Department of Neurosurgery (S.R.), University Hospital Halle (Saale), Germany; Epilepsy Center Bethel (R.S.), Mara Hospital, Bielefeld, Germany; Krembil Brain Institute (R.W.), Toronto Western Hospital, University of Toronto, Canada; Department of Biostatistics (B.M.B.), Aarhus University, Denmark; Department of Research (M.S.), BESA GmbH, Gräfelfing, Germany; Department of Clinical Neurophysiology (S.B.), Danish Epilepsy Centre, Dianalund, Denmark; and Department of Clinical Medicine (S.B.), Aarhus University, Denmark
| | - Pål G Larsson
- From the Department of Clinical Neurophysiology (M.A.K., L.D., V.S.H., H.T., S.B.), Aarhus University Hospital, Aarhus, Denmark; Department of Neurosurgery (P.G.L.), Rikshospitalet, Oslo University Hospital, Norway; Department of Neurosurgery (S.R.), University Hospital Erlangen, Germany; Department of Neurosurgery (S.R.), University Hospital Halle (Saale), Germany; Epilepsy Center Bethel (R.S.), Mara Hospital, Bielefeld, Germany; Krembil Brain Institute (R.W.), Toronto Western Hospital, University of Toronto, Canada; Department of Biostatistics (B.M.B.), Aarhus University, Denmark; Department of Research (M.S.), BESA GmbH, Gräfelfing, Germany; Department of Clinical Neurophysiology (S.B.), Danish Epilepsy Centre, Dianalund, Denmark; and Department of Clinical Medicine (S.B.), Aarhus University, Denmark
| | - Stefan Rampp
- From the Department of Clinical Neurophysiology (M.A.K., L.D., V.S.H., H.T., S.B.), Aarhus University Hospital, Aarhus, Denmark; Department of Neurosurgery (P.G.L.), Rikshospitalet, Oslo University Hospital, Norway; Department of Neurosurgery (S.R.), University Hospital Erlangen, Germany; Department of Neurosurgery (S.R.), University Hospital Halle (Saale), Germany; Epilepsy Center Bethel (R.S.), Mara Hospital, Bielefeld, Germany; Krembil Brain Institute (R.W.), Toronto Western Hospital, University of Toronto, Canada; Department of Biostatistics (B.M.B.), Aarhus University, Denmark; Department of Research (M.S.), BESA GmbH, Gräfelfing, Germany; Department of Clinical Neurophysiology (S.B.), Danish Epilepsy Centre, Dianalund, Denmark; and Department of Clinical Medicine (S.B.), Aarhus University, Denmark
| | - Reinhard Schulz
- From the Department of Clinical Neurophysiology (M.A.K., L.D., V.S.H., H.T., S.B.), Aarhus University Hospital, Aarhus, Denmark; Department of Neurosurgery (P.G.L.), Rikshospitalet, Oslo University Hospital, Norway; Department of Neurosurgery (S.R.), University Hospital Erlangen, Germany; Department of Neurosurgery (S.R.), University Hospital Halle (Saale), Germany; Epilepsy Center Bethel (R.S.), Mara Hospital, Bielefeld, Germany; Krembil Brain Institute (R.W.), Toronto Western Hospital, University of Toronto, Canada; Department of Biostatistics (B.M.B.), Aarhus University, Denmark; Department of Research (M.S.), BESA GmbH, Gräfelfing, Germany; Department of Clinical Neurophysiology (S.B.), Danish Epilepsy Centre, Dianalund, Denmark; and Department of Clinical Medicine (S.B.), Aarhus University, Denmark
| | - Hatice Tankisi
- From the Department of Clinical Neurophysiology (M.A.K., L.D., V.S.H., H.T., S.B.), Aarhus University Hospital, Aarhus, Denmark; Department of Neurosurgery (P.G.L.), Rikshospitalet, Oslo University Hospital, Norway; Department of Neurosurgery (S.R.), University Hospital Erlangen, Germany; Department of Neurosurgery (S.R.), University Hospital Halle (Saale), Germany; Epilepsy Center Bethel (R.S.), Mara Hospital, Bielefeld, Germany; Krembil Brain Institute (R.W.), Toronto Western Hospital, University of Toronto, Canada; Department of Biostatistics (B.M.B.), Aarhus University, Denmark; Department of Research (M.S.), BESA GmbH, Gräfelfing, Germany; Department of Clinical Neurophysiology (S.B.), Danish Epilepsy Centre, Dianalund, Denmark; and Department of Clinical Medicine (S.B.), Aarhus University, Denmark
| | - Richard Wennberg
- From the Department of Clinical Neurophysiology (M.A.K., L.D., V.S.H., H.T., S.B.), Aarhus University Hospital, Aarhus, Denmark; Department of Neurosurgery (P.G.L.), Rikshospitalet, Oslo University Hospital, Norway; Department of Neurosurgery (S.R.), University Hospital Erlangen, Germany; Department of Neurosurgery (S.R.), University Hospital Halle (Saale), Germany; Epilepsy Center Bethel (R.S.), Mara Hospital, Bielefeld, Germany; Krembil Brain Institute (R.W.), Toronto Western Hospital, University of Toronto, Canada; Department of Biostatistics (B.M.B.), Aarhus University, Denmark; Department of Research (M.S.), BESA GmbH, Gräfelfing, Germany; Department of Clinical Neurophysiology (S.B.), Danish Epilepsy Centre, Dianalund, Denmark; and Department of Clinical Medicine (S.B.), Aarhus University, Denmark
| | - Bo M Bibby
- From the Department of Clinical Neurophysiology (M.A.K., L.D., V.S.H., H.T., S.B.), Aarhus University Hospital, Aarhus, Denmark; Department of Neurosurgery (P.G.L.), Rikshospitalet, Oslo University Hospital, Norway; Department of Neurosurgery (S.R.), University Hospital Erlangen, Germany; Department of Neurosurgery (S.R.), University Hospital Halle (Saale), Germany; Epilepsy Center Bethel (R.S.), Mara Hospital, Bielefeld, Germany; Krembil Brain Institute (R.W.), Toronto Western Hospital, University of Toronto, Canada; Department of Biostatistics (B.M.B.), Aarhus University, Denmark; Department of Research (M.S.), BESA GmbH, Gräfelfing, Germany; Department of Clinical Neurophysiology (S.B.), Danish Epilepsy Centre, Dianalund, Denmark; and Department of Clinical Medicine (S.B.), Aarhus University, Denmark
| | - Michael Scherg
- From the Department of Clinical Neurophysiology (M.A.K., L.D., V.S.H., H.T., S.B.), Aarhus University Hospital, Aarhus, Denmark; Department of Neurosurgery (P.G.L.), Rikshospitalet, Oslo University Hospital, Norway; Department of Neurosurgery (S.R.), University Hospital Erlangen, Germany; Department of Neurosurgery (S.R.), University Hospital Halle (Saale), Germany; Epilepsy Center Bethel (R.S.), Mara Hospital, Bielefeld, Germany; Krembil Brain Institute (R.W.), Toronto Western Hospital, University of Toronto, Canada; Department of Biostatistics (B.M.B.), Aarhus University, Denmark; Department of Research (M.S.), BESA GmbH, Gräfelfing, Germany; Department of Clinical Neurophysiology (S.B.), Danish Epilepsy Centre, Dianalund, Denmark; and Department of Clinical Medicine (S.B.), Aarhus University, Denmark
| | - Sándor Beniczky
- From the Department of Clinical Neurophysiology (M.A.K., L.D., V.S.H., H.T., S.B.), Aarhus University Hospital, Aarhus, Denmark; Department of Neurosurgery (P.G.L.), Rikshospitalet, Oslo University Hospital, Norway; Department of Neurosurgery (S.R.), University Hospital Erlangen, Germany; Department of Neurosurgery (S.R.), University Hospital Halle (Saale), Germany; Epilepsy Center Bethel (R.S.), Mara Hospital, Bielefeld, Germany; Krembil Brain Institute (R.W.), Toronto Western Hospital, University of Toronto, Canada; Department of Biostatistics (B.M.B.), Aarhus University, Denmark; Department of Research (M.S.), BESA GmbH, Gräfelfing, Germany; Department of Clinical Neurophysiology (S.B.), Danish Epilepsy Centre, Dianalund, Denmark; and Department of Clinical Medicine (S.B.), Aarhus University, Denmark.
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Epilepsy and aging. HANDBOOK OF CLINICAL NEUROLOGY 2020. [PMID: 31753149 DOI: 10.1016/b978-0-12-804766-8.00025-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
The intersection of epilepsy and aging has broad, significant implications. Substantial increases in seizures occur both in the elderly population, who are at a higher risk of developing new-onset epilepsy, and in those with chronic epilepsy who become aged. There are notable gaps in our understanding of aging and epilepsy at the basic and practical levels, which have important consequences. We are in the early stages of understanding the complex relationships between epilepsy and other age-related brain diseases such as stroke, dementia, traumatic brain injury (TBI), and cancer. Furthermore, the clinician must recognize that the presentation and treatment of epilepsy in the elderly are different from those of younger populations. Given the developing awareness of the problem and the capabilities of contemporary, multidisciplinary approaches to advance understanding about the biology of aging and epilepsy, it is reasonable to expect that we will unravel some of the intricacies of epilepsy in the elderly; it is also reasonable to expect that these gains will lead to further improvements in our understanding and treatment of epilepsy for all age groups.
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Seizures and Epilepsy in the Elderly: Diagnostic and Treatment Considerations. CURRENT GERIATRICS REPORTS 2020. [DOI: 10.1007/s13670-020-00310-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Epilepsy in the elderly: Unique challenges in an increasingly prevalent population. Epilepsy Behav 2020; 102:106724. [PMID: 31816480 DOI: 10.1016/j.yebeh.2019.106724] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 11/15/2019] [Accepted: 11/15/2019] [Indexed: 12/24/2022]
Abstract
Elderly individuals (aged at least 60 or 65 years) represent a rapidly growing segment of the population. The incidence and prevalence of epilepsy is higher in this age group than in any other. Diagnosing epilepsy in the elderly can be challenging because the causes and clinical manifestations of seizures often differ as compared with younger individuals. Particular differential diagnoses, such as syncope and amyloid spells, are commonly encountered in the elderly population. A diagnosis of epilepsy has important implications in the older adult, many of which already present a variety of concomitant complex medical problems, such as cognitive impairment, comorbid cerebrovascular disease, and frailty. The treatment of epilepsy in the elderly is complicated by a variety of factors related to aging, including physiological changes, medical comorbidities, and polypharmacy. In this narrative review, we will address the descriptive epidemiology, clinical presentation, differential diagnosis, diagnostic evaluation, treatment, and prognosis of epilepsy in the elderly individual.
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Burneo JG, Antaya TC, Allen BN, Belisle A, Shariff SZ, Saposnik G. The risk of new-onset epilepsy and refractory epilepsy in older adult stroke survivors. Neurology 2019; 93:e568-e577. [DOI: 10.1212/wnl.0000000000007895] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 03/14/2019] [Indexed: 02/03/2023] Open
Abstract
ObjectiveOur study objectives were to identify factors associated with new-onset epilepsy and refractory epilepsy among older adult stroke survivors and to evaluate the receipt of diagnostic care and mortality for participants who developed epilepsy.MethodsWe conducted a population-based, retrospective cohort study using linked, administrative health care databases. The Ontario Stroke Registry was used to identify patients 67 years and older who were hospitalized for a stroke at a designated stroke center in Ontario, Canada, between April 1, 2003, and March 31, 2009, and were previously free of epilepsy. Multivariable Fine–Gray hazard models were used to examine risk factors of epilepsy and refractory epilepsy, accounting for the competing risk of death.ResultsAmong 19,138 older adults hospitalized for a stroke, 210 (1.1%) developed epilepsy and 27 (12.9%) became refractory to antiepileptic drugs. Within 1 year of epilepsy diagnosis, 24 (11.4%) patients were assessed with EEG and 19 (9.0%) with MRI. In multivariable analysis, younger age and thrombolysis receipt significantly increased epilepsy risk. Lesser stroke severity and anticoagulant medication receipt also significantly increased epilepsy risk; however, these effects decreased over time. Younger age and female sex were the only risk factors of refractory epilepsy. In the 5 years following epilepsy diagnosis, 97 (46.2%) participants died of any cause.ConclusionsOlder adult stroke survivors are less likely to develop epilepsy and pharmacologically refractory epilepsy. An estimated 86.6% of deaths among older adult stroke survivors with new-onset epilepsy are attributed to causes other than stroke or epilepsy.
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Novitskaya Y, Götz-Trabert K, Schulze-Bonhage A. Recurrent episodes of falls and amnestic confusional states as diagnostic challenge in the elderly. BMJ Case Rep 2019; 12:12/6/e228842. [DOI: 10.1136/bcr-2018-228842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
New-onset paroxysmal events in patients over 60 years of age are often diagnostically challenging owing to atypical presentation. Recurrent falls and transient states of confusion are especially common in the elderly population, yet their causes often remain undiagnosed due to concomitant cognitive deficits and motor impairments. We present an elderly patient with newly occurring ‘blackouts’ without obvious triggers and transient states of confusion for which he was amnestic. All neurological exams including brain MRI scan and routine electroencephalography (EEG) were normal. Long-term ECG monitoring using an event recorder captured an asystole during a habitual episode, leading to the diagnosis of syncope and pacemaker implantation. A subsequent video EEG monitoring performed due to ongoing unexplained confusional states revealed both bradycardia and long-lasting confusional states to be caused by unrecognised temporal lobe seizures. Ictal video EEG monitoring may play a crucial role in establishing a diagnosis of atypical temporal lobe seizures in the elderly.
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Watkins L, O'Dwyer M, Shankar R. New anti-seizure medication for elderly epileptic patients. Expert Opin Pharmacother 2019; 20:1601-1608. [PMID: 31112437 DOI: 10.1080/14656566.2019.1618272] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Introduction: Epilepsy treatment in older people requires specific consideration owing to more physical co-morbidities, the risk of drug-to-drug interactions through polypharmacy, and differences in pharmacodynamics and pharmacokinetics. There are many 'newer' antiepileptic drugs (AEDs) widely used for various seizure types and seizure disorders. However, there is limited specific evidence for the efficacy, safety, and tolerability of these treatments in the elderly population. Areas covered: This review summarises the current most robust evidence available for the use of the newer AEDs belonging to generation two and three in elderly people with epilepsy. The article provides practical evidenced based clinical information to help prescribers choose the most appropriate AED from the drugs discussed. Expert opinion: Diagnosing new onset epilepsy in the elderly population requires specialist assessment. Treatment plans need to be tailored to accommodate an individual's co-morbidities, concurrent medications, and general health status. To date, few clinical investigations consider the elderly population specifically despite the increased risk factors. There is a need for large quality trial data to assess the impact of the newest AEDs on seizure control and quality of life in this population with complex needs.
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Affiliation(s)
- Lance Watkins
- Neath Port Talbot CLDT, Mental Health & Learning Disability Delivery Unit, Abertawe Bro Morgannwg University Health Board, LLwyneryr Unit , Morriston , UK
| | - Máire O'Dwyer
- School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin , Dublin , Ireland
| | - Rohit Shankar
- Developmental Neuropsychiatry Department, Cornwall Partnership NHS Foundation Trust , Truro , UK.,Exeter Medical School, Knowledge Spa, Royal Cornwall Hospital , Truro , UK
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Paroxysmal events during prolonged video-electroencephalography monitoring in refractory epilepsy. NEUROLOGÍA (ENGLISH EDITION) 2019. [DOI: 10.1016/j.nrleng.2018.11.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Limotai C, Tasanaworapunya P, Thaipisuttikul I. Diagnostic Performance of the Electroencephalogram in the Elderly Manifesting With Episodes of Unresponsiveness. Clin EEG Neurosci 2019; 50:180-187. [PMID: 29788788 DOI: 10.1177/1550059418776087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This study aimed to determine diagnostic performance of the EEG in diagnosing seizures and to ascertain risk factors associated with seizures in the elderly presenting with episodes of unresponsiveness compared with younger patients. This is a cross-sectional study. Only EEGs requested with indication of transient unresponsiveness (TUR) were included. Patients were divided into 2 groups, younger (aged 18-49 years) and elderly (aged >60 years). The EEG was an index test. Reference standard, independently verified by 2 board-certified neurologists, was a clinical diagnosis of presence or absence of epilepsy/probable seizures. Univariate and multivariate analyses were performed to ascertain associated risk factors for epilepsy/probable seizures. Among 2187 total EEG recordings, 244 (11.16%) recordings were requested with indication of TUR. A total of 156 patients (50 younger and 106 elderly) were recruited for analysis. Prevalence of epilepsy/probable seizures in patients with TUR was 26.9%. Prevalence of interictal epileptiform discharges was 16% in the younger and 12.3% in the elderly. Overall diagnostic performance was poorer in the elderly. Associated risk factors for having seizures were presence of intermittent slow waves in the younger and presence of positive motor signs as well as presence of nonepileptiform abnormalities in the elderly. Prevalence of seizures and interictal epileptiform discharges was low in the elderly who manifests with TUR. Overall diagnostic performance of the EEG in diagnosing seizures was poorer in the elderly mainly due to low sensitivity. When we encounter patients with TUR, thorough and detailed history is still a mainstay of a diagnosis of seizures, not the EEG results.
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Affiliation(s)
- Chusak Limotai
- 1 Division of Neurology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.,2 Chulalongkorn Comprehensive Epilepsy Center of Excellence (CCEC), The Thai Red Cross Society, Bangkok, Thailand
| | - Patcharapa Tasanaworapunya
- 1 Division of Neurology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Iyavut Thaipisuttikul
- 1 Division of Neurology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
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Kobulashvili T, Kuchukhidze G, Brigo F, Zimmermann G, Höfler J, Leitinger M, Dobesberger J, Kalss G, Rohracher A, Neuray C, Wakonig A, Ernst F, Braun KPJ, Mouthaan BE, Van Eijsden P, Ryvlin P, Cross JH, Trinka E. Diagnostic and prognostic value of noninvasive long-term video-electroencephalographic monitoring in epilepsy surgery: A systematic review and meta-analysis from the E-PILEPSY consortium. Epilepsia 2018; 59:2272-2283. [PMID: 30511441 DOI: 10.1111/epi.14598] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 10/16/2018] [Accepted: 10/17/2018] [Indexed: 11/28/2022]
Abstract
OBJECTIVE The European Union-funded E-PILEPSY network (now continuing within the European Reference Network for rare and complex epilepsies [EpiCARE]) aims to harmonize and optimize presurgical diagnostic procedures by creating and implementing evidence-based guidelines across Europe. The present study evaluates the current evidence on the diagnostic accuracy of long-term video-electroencephalographic monitoring (LTM) in identifying the epileptogenic zone in epilepsy surgery candidates. METHODS MEDLINE, Embase, CENTRAL, and ClinicalTrials.gov were searched for relevant articles. First, we used random-effects meta-analytical models to calculate pooled estimates of sensitivity and specificity with respect to postsurgical seizure freedom. In a second phase, we analyzed individual patient data in an exploratory fashion, assessing diagnostic accuracy within lesional and nonlesional temporal lobe epilepsy (TLE) and extratemporal lobe epilepsy (ETLE) patients. We also evaluated seizure freedom rate in the presence of "localizing" or "nonlocalizing" LTM within each group. The quality of evidence was assessed using the QUADAS-2 tool and the GRADE approach. RESULTS Ninety-four studies were eligible. Forty-four were included in sensitivity meta-analysis and 34 in specificity meta-analysis. Pooled sensitivity was 0.70 (95% confidence interval [CI] = 0.60-0.80) and specificity was 0.40 (95% CI = 0.27-0.54). Subgroup analysis was based on individual data of 534 patients (41% men). In lesional TLE patients, sensitivity was 0.85 (95% CI = 0.81-0.89) and specificity was -0.19 (95% CI = 0.13-0.28). In lesional ETLE patients, a sensitivity of 0.47 (95% CI = 0.36-0.58) and specificity of 0.35 (95% CI = 0.21-0.53) were observed. In lesional TLE, if LTM was localizing and concordant with resection site, the seizure freedom rate was 247 of 333 (74%), whereas in lesional ETLE it was 34 of 56 (61%). The quality of evidence was assigned as "very low." SIGNIFICANCE Long-term video-electroencephalographic monitoring is associated with moderate sensitivity and low specificity in identification of the epileptogenic zone. Sensitivity is remarkably higher in lesional TLE compared to lesional ETLE. Substantial heterogeneity across the studies indicates the need for improved design and quality of reporting.
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Affiliation(s)
- Teia Kobulashvili
- Department of Neurology, Christian-Doppler-Klinik, Paracelsus Medical University, Salzburg, Austria
| | - Giorgi Kuchukhidze
- Department of Neurology, Christian-Doppler-Klinik, Paracelsus Medical University, Salzburg, Austria
| | - Francesco Brigo
- Department of Neuroscience, Biomedicine, and Movement Science, University of Verona, Verona, Italy.,Department of Neurology, Franz Tappeiner Hospital, Merano, Italy
| | - Georg Zimmermann
- Department of Neurology, Christian-Doppler-Klinik, Paracelsus Medical University, Salzburg, Austria.,Department of Mathematics, Paris Lodron University of Salzburg, Salzburg, Austria.,Spinal Cord Injury and Tissue Regeneration Center Salzburg, Paracelsus Medical University, Salzburg, Austria
| | - Julia Höfler
- Department of Neurology, Christian-Doppler-Klinik, Paracelsus Medical University, Salzburg, Austria
| | - Markus Leitinger
- Department of Neurology, Christian-Doppler-Klinik, Paracelsus Medical University, Salzburg, Austria
| | - Judith Dobesberger
- Department of Neurology, Christian-Doppler-Klinik, Paracelsus Medical University, Salzburg, Austria
| | - Gudrun Kalss
- Department of Neurology, Christian-Doppler-Klinik, Paracelsus Medical University, Salzburg, Austria
| | - Alexandra Rohracher
- Department of Neurology, Christian-Doppler-Klinik, Paracelsus Medical University, Salzburg, Austria
| | - Caroline Neuray
- Department of Neurology, Christian-Doppler-Klinik, Paracelsus Medical University, Salzburg, Austria
| | - Antonia Wakonig
- Department of Neurology, Christian-Doppler-Klinik, Paracelsus Medical University, Salzburg, Austria
| | | | - Kees P J Braun
- Department of Child Neurology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Brian E Mouthaan
- Department of Child Neurology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Pieter Van Eijsden
- Department of Child Neurology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Philippe Ryvlin
- Department of Clinical Neurosciences, CHUV, Lausanne University Hospital, Lausanne, France.,European Epilepsy Monitoring Unit Association, Bron, France
| | - J Helen Cross
- University College London Great Ormond Street Institute of Child Health, London, United Kingdom
| | - Eugen Trinka
- Department of Neurology, Christian-Doppler-Klinik, Paracelsus Medical University, Salzburg, Austria.,Spinal Cord Injury and Tissue Regeneration Center Salzburg, Paracelsus Medical University, Salzburg, Austria.,Center for Cognitive Neuroscience, Salzburg, Austria
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Tatum W, Rubboli G, Kaplan P, Mirsatari S, Radhakrishnan K, Gloss D, Caboclo L, Drislane F, Koutroumanidis M, Schomer D, Kasteleijn-Nolst Trenite D, Cook M, Beniczky S. Clinical utility of EEG in diagnosing and monitoring epilepsy in adults. Clin Neurophysiol 2018; 129:1056-1082. [DOI: 10.1016/j.clinph.2018.01.019] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 12/28/2017] [Accepted: 01/09/2018] [Indexed: 12/20/2022]
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Kanemoto K, LaFrance WC, Duncan R, Gigineishvili D, Park S, Tadokoro Y, Ikeda H, Paul R, Zhou D, Taniguchi G, Kerr M, Oshima T, Jin K, Reuber M. PNES around the world: Where we are now and how we can close the diagnosis and treatment gaps-an ILAE PNES Task Force report. Epilepsia Open 2017; 2:307-316. [PMID: 29588959 PMCID: PMC5862115 DOI: 10.1002/epi4.12060] [Citation(s) in RCA: 97] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/10/2017] [Indexed: 02/05/2023] Open
Abstract
An international consensus clinical practice statement issued in 2011 ranked psychogenic nonepileptic seizures (PNES) among the top three neuropsychiatric problems. An ILAE PNES Task Force was founded and initially charged with summarizing the current state of the art in terms of diagnosis and treatment, resulting in two publications. The first described different levels of diagnostic certainty. The second summarized current knowledge of management approaches. The present paper summarizes an international workshop of the ILAE PNES Task Force that focused on the current understanding and management of PNES around the world. We initially provide a knowledge update about the etiology, epidemiology, and prognosis of PNES-in adults and in special patient groups, such as children, older adults, and those with intellectual disability. We then explore clinical management pathways and obstacles to optimal care for this disorder around the world by focusing on a number of countries with different cultural backgrounds and at very different stages of social and economic development (United Kingdom, U.S.A., Zambia, Georgia, China, and Japan). Although evidence-based methods for the diagnosis and treatment of PNES have now been described, and much is known about the biopsychosocial underpinnings of this disorder, this paper describes gaps in care (not only in less developed countries) that result in patients with PNES not having adequate access to healthcare provisions. A range of challenges requiring solutions tailored to different healthcare systems emerges. Continued attention to PNES by the ILAE and other national and international neurologic, psychiatric, and health organizations, along with ongoing international collaboration, should ensure that patients with PNES do not lose out as healthcare services evolve around the world.
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Affiliation(s)
- Kousuke Kanemoto
- Department of NeuropsychiatryAichi Medical UniversityNagakuteJapan
| | - W. Curt LaFrance
- Rhode Island HospitalBrown UniversityProvidenceRhode IslandU.S.A.
| | | | - David Gigineishvili
- Department of Neurology & NeurosurgerySarajishvili Institute of NeurologyTbilisi State UniversityTbilisiGeorgia
| | - Sung‐Pa Park
- Department of NeurologyKyungpook National University School of MedicineDaeguKorea
| | - Yukari Tadokoro
- Department of NeuropsychiatryAichi Medical UniversityNagakuteJapan
| | - Hiroko Ikeda
- Department of PediatricsEpilepsy CenterNHO Shizuoka Institute of Epilepsy and Neurological DisordersShizuokaJapan
| | - Ravi Paul
- Department of PsychiatrySchool of MedicineUniversity of ZambiaLusakaZambia
| | - Dong Zhou
- Department of NeurologyWest China HospitalSichuan UniversityChengduChina
| | - Go Taniguchi
- Department of Neuropsychiatrythe University of TokyoTokyoJapan
| | - Mike Kerr
- Learning Disability PsychiatryCardiff UniversityCardiffUnited Kingdom
| | - Tomohiro Oshima
- Department of NeuropsychiatryAichi Medical UniversityNagakuteJapan
| | - Kazutaka Jin
- Tohoku Daigaku Daigakuin Igakukei Kenkyuka IgakubuSendaiMiyagiJapan
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Scévola L, Sarudiansky M, Lanzillotti A, Oddo S, Kochen S, D'Alessio L. To what extent does depression influence quality of life of people with pharmacoresistant epilepsy in Argentina? Epilepsy Behav 2017; 69:133-138. [PMID: 28259063 DOI: 10.1016/j.yebeh.2017.01.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Revised: 12/22/2016] [Accepted: 01/07/2017] [Indexed: 11/16/2022]
Abstract
INTRODUCTION Depression is the most frequent psychiatric co-morbidity in patients with epilepsy. Lifetime prevalence of depression is reported more frequently in temporal lobe epilepsy and is estimated at 35%. This co-morbidity appears to be related with various mechanisms. The aim of this study was to determine the quality of life (QoL) of patients with pharmacoresistant epilepsy with and without co-morbid depression in an Argentinean population. METHODS Patients admitted to the video-EEG monitoring unit during the period 2010-2013 went through a standardized psychiatric assessment using SCID-I (Structured Clinical Interview for Axis I diagnoses of DSM-IV), BDI II (Beck Depression Inventory) GAF (Global assessment of functioning), and Q LES Q-SF (for quality of life). Patients were divided in two groups: with and without depression (according to DSM-IV). Sociodemographic data, BDI II scores, GAF, and quality of life (QoL) were compared between the two groups. Comparisons were made using Student's t-test and Mann-Whitney U test. Frequency distributions were compared by Chi-square test. Spearman correlation coefficients were determined. RESULTS Seventy-seven patients with pharmacoresistant epilepsy were eligible for this study, 41 patients were included in the group with depression (mean BDI II 15.93), and 36 in the group without depression (mean BDI II 3.36) (p=0.001). The overall QoL was significantly lower in the group with depression compared to the group without depression (p<0.01). The most affected areas were: physical health (p=0.013), mood (p=0.006), course activities (referring to school as well as to hobbies or classes outside of school) (p=0.003), leisure time activities (p=0.011), social activities (p=0.047), general activities (p=0.042), and medication (p=0.022). Severity of depression according to BDI II had a negative correlation with overall QoL (r - 0.339, p<0.01). No correlations were found between seizure frequency, QoL and BDI II. CONCLUSION Patients with pharmacoresistant epilepsy and co-morbid depression reported worst QoL. Depression disrupts daily functioning (leisure, social functioning) and is a negative influence for subjective perception of health and medication. Interdisciplinary treatment should be considered (neurology-psychiatry-psychotherapy).
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Affiliation(s)
- Laura Scévola
- Epilepsy Center, Ramos Mejía y El Cruce Hospital, EnyS-CONICET, Buenos Aires, Argentina; Mental Health Center, Ramos Mejía Hospital, Buenos Aires, Argentina.
| | - Mercedes Sarudiansky
- Epilepsy Center, Ramos Mejía y El Cruce Hospital, EnyS-CONICET, Buenos Aires, Argentina
| | - Alejandra Lanzillotti
- Epilepsy Center, Ramos Mejía y El Cruce Hospital, EnyS-CONICET, Buenos Aires, Argentina
| | - Silvia Oddo
- Epilepsy Center, Ramos Mejía y El Cruce Hospital, EnyS-CONICET, Buenos Aires, Argentina; Universidad de Buenos Aires, IBCN-CONICET, Buenos Aires, Argentina
| | - Silvia Kochen
- Epilepsy Center, Ramos Mejía y El Cruce Hospital, EnyS-CONICET, Buenos Aires, Argentina; Universidad de Buenos Aires, IBCN-CONICET, Buenos Aires, Argentina
| | - Luciana D'Alessio
- Epilepsy Center, Ramos Mejía y El Cruce Hospital, EnyS-CONICET, Buenos Aires, Argentina; Universidad de Buenos Aires, IBCN-CONICET, Buenos Aires, Argentina
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Sanabria-Castro A, Henríquez-Varela F, Monge-Bonilla C, Lara-Maier S, Sittenfeld-Appel M. Paroxysmal events during prolonged video-video electroencephalography monitoring in refractory epilepsy. Neurologia 2017; 34:234-240. [PMID: 28318732 DOI: 10.1016/j.nrl.2016.12.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Revised: 12/09/2016] [Accepted: 12/20/2016] [Indexed: 11/25/2022] Open
Abstract
INTRODUCTION Given that epileptic seizures and non-epileptic paroxysmal events have similar clinical manifestations, using specific diagnostic methods is crucial, especially in patients with drug-resistant epilepsy. Prolonged video electroencephalography monitoring during epileptic seizures reveals epileptiform discharges and has become an essential procedure for epilepsy diagnosis. The main purpose of this study is to characterise paroxysmal events and compare patterns in patients with refractory epilepsy. METHODS We conducted a retrospective analysis of medical records from 91 patients diagnosed with refractory epilepsy who underwent prolonged video electroencephalography monitoring during hospitalisation. RESULTS During prolonged video electroencephalography monitoring, 76.9% of the patients (n=70) had paroxysmal events. The mean number of events was 3.4±2.7; the duration of these events was highly variable. Most patients (80%) experienced seizures during wakefulness. The most common events were focal seizures with altered levels of consciousness, progressive bilateral generalized seizures and psychogenic non-epileptic seizures. Regarding all paroxysmal events, no differences were observed in the number or type of events by sex, in duration by sex or age at onset, or in the number of events by type of event. Psychogenic nonepileptic seizures were predominantly registered during wakefulness, lasted longer, started at older ages, and were more frequent in women. CONCLUSIONS Paroxysmal events recorded during prolonged video electroencephalography monitoring in patients with refractory epilepsy show similar patterns and characteristics to those reported in other latitudes.
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Affiliation(s)
- A Sanabria-Castro
- Unidad de Investigación, Hospital San Juan de Dios (HSJD), Caja Costarricense del Seguro Social (CCSS), San José, Costa Rica.
| | - F Henríquez-Varela
- Servicio de Neurología, Hospital San Juan de Dios (HSJD), Caja Costarricense del Seguro Social (CCSS), San José, Costa Rica
| | - C Monge-Bonilla
- Unidad de Investigación, Hospital San Juan de Dios (HSJD), Caja Costarricense del Seguro Social (CCSS), San José, Costa Rica
| | - S Lara-Maier
- Servicio de Psiquiatría, Hospital San Juan de Dios (HSJD), Caja Costarricense del Seguro Social (CCSS), San José, Costa Rica
| | - M Sittenfeld-Appel
- Servicio de Neurología, Hospital San Juan de Dios (HSJD), Caja Costarricense del Seguro Social (CCSS), San José, Costa Rica
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Is long-term electroencephalogram more appropriate than standard electroencephalogram in the elderly? Clin Neurophysiol 2017; 128:270-274. [DOI: 10.1016/j.clinph.2016.10.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2016] [Revised: 10/01/2016] [Accepted: 10/08/2016] [Indexed: 11/22/2022]
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Kobulashvili T, Höfler J, Dobesberger J, Ernst F, Ryvlin P, Cross JH, Braun K, Dimova P, Francione S, Hecimovic H, Helmstaedter C, Kimiskidis VK, Lossius MI, Malmgren K, Marusic P, Steinhoff BJ, Boon P, Craiu D, Delanty N, Fabo D, Gil-Nagel A, Guekht A, Hirsch E, Kalviainen R, Mameniskiené R, Özkara Ç, Seeck M, Rubboli G, Krsek P, Rheims S, Trinka E. Current practices in long-term video-EEG monitoring services: A survey among partners of the E-PILEPSY pilot network of reference for refractory epilepsy and epilepsy surgery. Seizure 2016; 38:38-45. [PMID: 27104922 DOI: 10.1016/j.seizure.2016.03.009] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Revised: 03/23/2016] [Accepted: 03/24/2016] [Indexed: 11/18/2022] Open
Abstract
PURPOSE The European Union-funded E-PILEPSY network aims to improve awareness of, and accessibility to, epilepsy surgery across Europe. In this study we assessed current clinical practices in epilepsy monitoring units (EMUs) in the participating centers. METHOD A 60-item web-based survey was distributed to 25 centers (27 EMUs) of the E-PILEPSY network across 22 European countries. The questionnaire was designed to evaluate the characteristics of EMUs, including organizational aspects, admission, and observation of patients, procedures performed, safety issues, cost, and reimbursement. RESULTS Complete responses were received from all (100%) EMUs surveyed. Continuous observation of patients was performed in 22 (81%) EMUs during regular working hours, and in 17 EMUs (63%) outside of regular working hours. Fifteen (56%) EMUs requested a signed informed consent before admission. All EMUs performed tapering/withdrawal of antiepileptic drugs, 14 (52%) prior to admission to an EMU. Specific protocols on antiepileptic drugs (AED) tapering were available in four (15%) EMUs. Standardized Operating Procedures (SOP) for the treatment of seizure clusters and status epilepticus were available in 16 (59%). Safety measures implemented by EMUs were: alarm seizure buttons in 21 (78%), restricted patient's ambulation in 19 (70%), guard rails in 16 (59%), and specially designated bathrooms in 7 (26%). Average costs for one inpatient day in EMU ranged between 100 and 2200 Euros. CONCLUSION This study shows a considerable diversity in the organization and practice patterns across European epilepsy monitoring units. The collected data may contribute to the development and implementation of evidence-based recommended practices in LTM services across Europe.
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Affiliation(s)
- Teia Kobulashvili
- Department of Neurology, Christian-Doppler-Klinik, Paracelsus Medical University, and Centre for Cognitive Neuroscience, Ignaz-Harrer-Straße 79, 5020 Salzburg, Austria
| | - Julia Höfler
- Department of Neurology, Christian-Doppler-Klinik, Paracelsus Medical University, and Centre for Cognitive Neuroscience, Ignaz-Harrer-Straße 79, 5020 Salzburg, Austria
| | - Judith Dobesberger
- Department of Neurology, Christian-Doppler-Klinik, Paracelsus Medical University, and Centre for Cognitive Neuroscience, Ignaz-Harrer-Straße 79, 5020 Salzburg, Austria
| | - Florian Ernst
- Department of Neurology, Christian-Doppler-Klinik, Paracelsus Medical University, and Centre for Cognitive Neuroscience, Ignaz-Harrer-Straße 79, 5020 Salzburg, Austria
| | - Philippe Ryvlin
- Département des Neurosciences Cliniques, Centre Hospitalier Universitaire Vaudois, Rue du Bugnon 46, CH-1011 Lausanne, France; European Epilepsy Monitoring Unit Association (EEMA), France
| | - J Helen Cross
- University College London Institute of Child Health, Great Ormond Street Hospital for Children NHS Foundation Trust, London, United Kingdom
| | - Kees Braun
- Department of Child Neurology, University Medical Center, 3508 AB Utrecht, The Netherlands
| | - Petia Dimova
- Epilepsy Surgery Center, Neurosurgery department, St. Ivan Rilski University Hospital, Sofia, Bulgaria
| | - Stefano Francione
- Claudio Munari Epilepsy Surgery Centre, Niguarda Hospital, Piazza Ospedale Maggiore 3, 20162 Milan, Italy
| | - Hrvoje Hecimovic
- Zagreb Epilepsy Center, Department of Neurology, University Hospital, Vinogradska cesta 29, 10000 Zagreb, Croatia
| | - Christoph Helmstaedter
- Department of Epileptology, University of Bonn, University Medical Center, Sigmund Freud Straße 25, 53105 Bonn, Germany
| | - Vasilios K Kimiskidis
- Laboratory of Clinical Neurophysiology, Medical School, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Morten Ingvar Lossius
- Department of Complex Epilepsy, National Centre for Epilepsy (SSE), Oslo University Hospital, Oslo, Norway
| | - Kristina Malmgren
- Department of Clinical Neuroscience and Rehabilitation, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, Sweden
| | - Petr Marusic
- Department of Neurology, 2nd Faculty of Medicine, Charles University, Motol University Hospital, V Úvalu 84, Prague 5 CZ 150 06, Czech Republic
| | - Bernhard J Steinhoff
- Epilepsiezentrum Kork, Landstraße 1, 77694 Kehl-Kork, Germany; European Epilepsy Monitoring Unit Association (EEMA), France
| | - Paul Boon
- Institute for Neuroscience, Reference center for refractory epilepsy, Gehnt University Hospital, Belgium
| | - Dana Craiu
- "Carola Davila" University of Medicine Bucharest and Pediatric Neurology Clinic, "Alexandru Obregia" Clinical Psychiatric Hospital, Şos. Berceni 10-12, Sector 4, Bucharest, Romania
| | - Norman Delanty
- Department of Molecular and Cellular Therapeutics, Royal College of Surgeons in Ireland, Dublin 2, Ireland; Department of Neurology, Beaumont Hospital, Dublin 9, Ireland
| | - Daniel Fabo
- National Institute of Clinical Neurosciences, Amerikai ut 57, Budapest H-1145, Hungary
| | - Antonio Gil-Nagel
- Department of Neurology, Hospital Ruber Internacional, La Maso 38, 28034 Madrid, Spain
| | - Alla Guekht
- Moscow Research and Clinical Center for Neuropsychiatry of the Healthcare Department, Ul. Donskaya 43, Moscow 115419, Russia; Department of Neurology and Neurosurgery of Russian National Research Medical University, Leninsky pr-t 8-8, Moscow 119049, Russia
| | - Edouard Hirsch
- Département de Neurologie, 1 Place de l'Hôpital, 67091 Strasbourg, France
| | - Reetta Kalviainen
- Department of Neurology, Kuopio University Hospital, Kuopio, Finland; School of Medicine, University of Eastern Finland, Kuopio, Finland
| | - Ruta Mameniskiené
- Clinic of Neurology and neurosurgery, Medical Faculty (MF), Vilnius University, Vilnius, Lithuania; Epilepsy Center, Department of Neurology, Vilnius University Hospital Santariskiu Klinikos, Vilnius, Lithuania
| | - Çiğdem Özkara
- Istanbul University, Cerrahpaşa Medical Faculty, Department of Neurology, Division of Clinical Electro-Neurophysiology, 34098 Istanbul, Turkey
| | - Margitta Seeck
- Presurgical Epilepsy Evaluation Unit, Functional Neurology and Neurosurgery Program of the University Hospitals of Geneva and Lausanne, 1211 Geneva 14, Switzerland
| | - Guido Rubboli
- European Epilepsy Monitoring Unit Association (EEMA), France; Danish Epilepsy Center, Filadelfia/University of Copenhagen, Kolonivej 1, 4293 Dianalund, Denmark; IRCCS Institute of Neurological Sciences, Bellaria Hospital, Bologna, Italy
| | - Pavel Krsek
- Department of Pediatric Neurology, 2nd Faculty of Medicine, Charles University, Motol University Hospital, V Úvalu 84, Prague 5, CZ 150 06, Czech Republic
| | - Sylvain Rheims
- Department of Functional Neurology and Epileptology, Hospices Civils de Lyon, Lyon, France
| | - Eugen Trinka
- Department of Neurology, Christian-Doppler-Klinik, Paracelsus Medical University, and Centre for Cognitive Neuroscience, Ignaz-Harrer-Straße 79, 5020 Salzburg, Austria; European Epilepsy Monitoring Unit Association (EEMA), France.
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Pitkänen A, Roivainen R, Lukasiuk K. Development of epilepsy after ischaemic stroke. Lancet Neurol 2015; 15:185-197. [PMID: 26597090 DOI: 10.1016/s1474-4422(15)00248-3] [Citation(s) in RCA: 131] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 09/16/2015] [Accepted: 09/16/2015] [Indexed: 12/20/2022]
Abstract
For about 30% of patients with epilepsy the cause is unknown. Even in patients with a known risk factor for epilepsy, such as ischaemic stroke, only a subpopulation of patients develops epilepsy. Factors that contribute to the risk for epileptogenesis in a given individual generally remain unknown. Studies in the past decade on epilepsy in patients with ischaemic stroke suggest that, in addition to the primary ischaemic injury, existing difficult-to-detect microscale changes in blood vessels and white matter present as epileptogenic pathologies. Injury severity, location and type of pathological changes, genetic factors, and pre-injury and post-injury exposure to non-genetic factors (ie, the exposome) can divide patients with ischaemic stroke into different endophenotypes with a variable risk for epileptogenesis. These data provide guidance for animal modelling of post-stroke epilepsy, and for laboratory experiments to explore with increased specificity the molecular 'mechanisms, biomarkers, and treatment targets of post-stroke epilepsy in different circumstances, with the aim of modifying epileptogenesis after ischaemic stroke in individual patients without compromising recovery.
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Affiliation(s)
- Asla Pitkänen
- Department of Neurobiology, A. I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland.
| | - Reina Roivainen
- Department of Neurology, Hyvinkää Hospital, Hyvinkää, Finland
| | - Katarzyna Lukasiuk
- The Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
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Michel V, Mazzola L, Lemesle M, Vercueil L. Long-term EEG in adults: Sleep-deprived EEG (SDE), ambulatory EEG (Amb-EEG) and long-term video-EEG recording (LTVER). Neurophysiol Clin 2015; 45:47-64. [DOI: 10.1016/j.neucli.2014.11.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Accepted: 11/03/2014] [Indexed: 10/24/2022] Open
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[French guidelines on electroencephalogram]. Neurophysiol Clin 2014; 44:515-612. [PMID: 25435392 DOI: 10.1016/j.neucli.2014.10.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2014] [Accepted: 10/07/2014] [Indexed: 12/11/2022] Open
Abstract
Electroencephalography allows the functional analysis of electrical brain cortical activity and is the gold standard for analyzing electrophysiological processes involved in epilepsy but also in several other dysfunctions of the central nervous system. Morphological imaging yields complementary data, yet it cannot replace the essential functional analysis tool that is EEG. Furthermore, EEG has the great advantage of being non-invasive, easy to perform and allows control tests when follow-up is necessary, even at the patient's bedside. Faced with the advances in knowledge, techniques and indications, the Société de Neurophysiologie Clinique de Langue Française (SNCLF) and the Ligue Française Contre l'Épilepsie (LFCE) found it necessary to provide an update on EEG recommendations. This article will review the methodology applied to this work, refine the various topics detailed in the following chapters. It will go over the summary of recommendations for each of these chapters and underline proposals for writing an EEG report. Some questions could not be answered by the review of the literature; in those cases, an expert advice was given by the working and reading groups in addition to the guidelines.
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Jimenez XF, Sharma JS, Dar SA. Conversion disorder as psychogenic nonepileptic seizures in suspected cancer: a case report. Gen Hosp Psychiatry 2014; 36:761.e1-2. [PMID: 25103545 DOI: 10.1016/j.genhosppsych.2014.06.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2014] [Revised: 06/27/2014] [Accepted: 06/30/2014] [Indexed: 11/27/2022]
Abstract
Psychogenic nonepileptic seizures (PNES), a form of conversion disorder, are paroxysmal episodes resembling epilepsy while lacking electrographic correlation. The phenomenon has rarely been reported in elderly patients and has not been associated with a new-onset medical diagnosis. We present the case of an 81-year-old female with no past psychiatric or traumatic history who developed PNES within the context of a new, suspected cancer. To our knowledge, this is the first such reported case of a suspected cancer (or otherwise medical) diagnosis contributing directly and temporally to the development of PNES. Discussion of involved psychosocial variables follows the vignette, and a brief review of relevant literature is offered.
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Affiliation(s)
- Xavier F Jimenez
- Cleveland Clinic Foundation, Department of Psychiatry and Psychology, 9500 Euclid Avenue, P57, Cleveland, OH 44195, USA.
| | - Jennifer S Sharma
- Cleveland Clinic Foundation, Department of Psychiatry and Psychology, 9500 Euclid Avenue, P57, Cleveland, OH 44195, USA
| | - Syma A Dar
- Cleveland Clinic Foundation, Department of Psychiatry and Psychology, 9500 Euclid Avenue, P57, Cleveland, OH 44195, USA
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Simultaneous recording of EEG and electromyographic polygraphy increases the diagnostic yield of video-EEG monitoring. J Clin Neurophysiol 2014; 31:203-7. [PMID: 24887602 DOI: 10.1097/wnp.0000000000000059] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
PURPOSE To investigate the usefulness of adjunctive electromyographic (EMG) polygraphy in the diagnosis of clinical events captured during long-term video-EEG monitoring. METHODS A total of 40 patients (21 women, 19 men) aged between 19 and 72 years (mean 43) investigated using video-EEG monitoring were studied. Electromyographic activity was simultaneously recorded with EEG in four patients selected on clinical grounds. In these patients, surface EMG electrodes were placed over muscles suspected to be activated during a typical clinical event. RESULTS Of the 40 patients investigated, 24 (60%) were given a diagnosis, whereas 16 (40%) remained undiagnosed. All four patients receiving adjunctive EMG polygraphy obtained a diagnosis, with three of these diagnoses being exclusively reliant on the EMG recordings. Specifically, one patient was diagnosed with propriospinal myoclonus, another patient was diagnosed with facio-mandibular myoclonus, and a third patient was found to have bruxism and periodic leg movements of sleep. CONCLUSIONS The information obtained from surface EMG recordings aided the diagnosis of clinical events captured during video-EEG monitoring in 7.5% of the total cohort. This study suggests that EEG-EMG polygraphy may be used as a technique of improving the diagnostic yield of video-EEG monitoring in selected cases.
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Management of Seizures in the Elderly. CURRENT GERIATRICS REPORTS 2014. [DOI: 10.1007/s13670-014-0078-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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