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Grau-López L, Flores-Pina B, Jiménez M, Carbonell J, Ciurans J, Chies E, Fagundez O, Fumanal A, Becerra JL. Epileptiform electroencephalogram discharges increase seizure recurrence risk in patients with acute symptomatic seizure due to a structural brain lesion. Seizure 2024; 117:56-59. [PMID: 38330750 DOI: 10.1016/j.seizure.2024.02.001] [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] [Received: 09/25/2023] [Revised: 02/02/2024] [Accepted: 02/03/2024] [Indexed: 02/10/2024] Open
Abstract
OBJECTIVE The risk factors for seizure recurrence after acute symptomatic seizure due to a structural brain lesion are not well established. The aim of this study was to analyze possible associations between demographic, clinical, and electroencephalographic variables and epilepsy development in patients with acute symptomatic seizure due to an acute structural brain lesion. METHODS We designed an observational prospective study of patients with acute symptomatic seizure due to an acute structural brain lesion (hemorrhagic stroke, ischemic stroke, traumatic brain injury, or meningoencephalitis) who underwent EEG during their initial admission between January 2015 and January 2020. We analyzed prospectively recorded demographic, clinical, electroencephalographic (EEG), and treatment-related variables. All variables were compared between patients with and without seizure recurrence during 2 years of follow up. RESULTS We included 194 patients (41.2 % women; mean [SD] age, 57.3 [15.8] years) with acute symptomatic seizure due to an acute structural brain lesion. They all underwent EEG during admission and were followed for at least 2 years. The identifiable causes were hemorrhagic stroke (44.8 %), ischemic stroke (19.5 %), traumatic brain injury (18.5 %), and meningoencephalitis (17 %). Fifty-six patients (29 %) experienced a second seizure during follow-up. Seizure recurrence was associated with epileptiform discharges on EEG (52% vs 32 %; OR 2.3 [95 % CI, 1.2-4.3], p = 0.008) and onset with status epilepticus (17% vs 0.05 %, OR 4.03 [95 % CI 1.45-11.2], p = 0.009). CONCLUSIONS Epileptiform discharges on EEG and status epilepticus in patients with acute symptomatic seizure due to an acute structural brain lesion are associated with a higher risk of epilepsy development.
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Affiliation(s)
- Laia Grau-López
- Department of Neurosciences, Hospital Germans Trias i Pujol, C/ Canyet s/n, 08916, Badalona, Spain.
| | - Belén Flores-Pina
- Department of Neurosciences, Hospital Germans Trias i Pujol, C/ Canyet s/n, 08916, Badalona, Spain
| | - Marta Jiménez
- Department of Neurosciences, Hospital Germans Trias i Pujol, C/ Canyet s/n, 08916, Badalona, Spain
| | - Jaime Carbonell
- Department of Neurosciences, Hospital Germans Trias i Pujol, C/ Canyet s/n, 08916, Badalona, Spain
| | - Jordi Ciurans
- Department of Neurosciences, Hospital Germans Trias i Pujol, C/ Canyet s/n, 08916, Badalona, Spain
| | - Eva Chies
- Department of Neurosciences, Hospital Germans Trias i Pujol, C/ Canyet s/n, 08916, Badalona, Spain
| | - Olga Fagundez
- Department of Neurosciences, Hospital Germans Trias i Pujol, C/ Canyet s/n, 08916, Badalona, Spain
| | - Alejandra Fumanal
- Department of Neurosciences, Hospital Germans Trias i Pujol, C/ Canyet s/n, 08916, Badalona, Spain
| | - Juan Luis Becerra
- Department of Neurosciences, Hospital Germans Trias i Pujol, C/ Canyet s/n, 08916, Badalona, Spain
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Doerrfuss JI, Hebel JM, Holtkamp M. Epileptogenicity of white matter lesions in cerebral small vessel disease: a systematic review and meta-analysis. J Neurol 2023; 270:4890-4902. [PMID: 37341807 PMCID: PMC10511556 DOI: 10.1007/s00415-023-11828-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 06/13/2023] [Accepted: 06/14/2023] [Indexed: 06/22/2023]
Abstract
BACKGROUND The epileptogenic properties of white matter lesions (WML) in cerebral small vessel disease (CSVD) are not yet understood. The aim of our systematic review and meta-analysis was to estimate the association between the extent of WML in CSVD and epilepsy, analyze whether these WML are associated with an increased risk of seizure recurrence, and evaluate if treatment with anti-seizure medication (ASM) is justified in first-seizure patients with WML and no cortical lesions. METHODS Following a pre-registered study protocol (PROSPERO-ID CRD42023390665), we systematically searched Pubmed and Embase for relevant literature comparing WML load between patients with epilepsy and controls as well as studies on seizure recurrence risk and ASM therapy in the presence vs. absence of WML. We calculated pooled estimates using a random effects model. RESULTS Eleven studies comprising 2983 patients were included in our study. Presence of WML (OR 2.14, 95% CI 1.38-3.33) and presence of relevant WML as assessed by visual rating scales (OR 3.96, 95% CI 2.55-6.16) but not WML volume (OR 1.30, 95% CI 0.91-1.85) were significantly associated with seizures. These results stayed robust in sensitivity analyses restricted to studies on patients with late-onset seizures/epilepsy. Only two studies assessed the association between WML and risk of seizure recurrence with conflicting results. Currently, there are no studies on the efficacy of ASM therapy in the presence of WML in CSVD. CONCLUSIONS This meta-analysis suggests an association between presence of WML in CSVD and seizures. More research is needed addressing the association between WML and risk of seizure recurrence and ASM therapy focusing on a population of patients with a first unprovoked seizure.
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Affiliation(s)
- Jakob I Doerrfuss
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Neurology with Experimental Neurology, Campus Benjamin Franklin, Hindenburgdamm 30, 12203, Berlin, Germany.
| | - Jonas M Hebel
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Neurology with Experimental Neurology, Campus Benjamin Franklin, Hindenburgdamm 30, 12203, Berlin, Germany
| | - Martin Holtkamp
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Neurology with Experimental Neurology, Campus Benjamin Franklin, Hindenburgdamm 30, 12203, Berlin, Germany
- Epilepsy-Center Berlin-Brandenburg, Institute for Diagnostics of Epilepsy, Berlin, Germany
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Rubinos C, Bruzzone MJ, Viswanathan V, Figueredo L, Maciel CB, LaRoche S. Electroencephalography as a Biomarker of Prognosis in Acute Brain Injury. Semin Neurol 2023; 43:675-688. [PMID: 37832589 DOI: 10.1055/s-0043-1775816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2023]
Abstract
Electroencephalography (EEG) is a noninvasive tool that allows the monitoring of cerebral brain function in critically ill patients, aiding with diagnosis, management, and prognostication. Specific EEG features have shown utility in the prediction of outcomes in critically ill patients with status epilepticus, acute brain injury (ischemic stroke, intracranial hemorrhage, subarachnoid hemorrhage, and traumatic brain injury), anoxic brain injury, and toxic-metabolic encephalopathy. Studies have also found an association between particular EEG patterns and long-term functional and cognitive outcomes as well as prediction of recovery of consciousness following acute brain injury. This review summarizes these findings and demonstrates the value of utilizing EEG findings in the determination of prognosis.
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Affiliation(s)
- Clio Rubinos
- Department of Neurology, University of North Carolina, Chapel Hill, North Carolina
| | | | - Vyas Viswanathan
- Department of Neurology, University of North Carolina, Chapel Hill, North Carolina
| | - Lorena Figueredo
- Department of Neurology, University of Florida, Gainesville, Florida
| | - Carolina B Maciel
- Department of Neurology, University of Florida, Gainesville, Florida
| | - Suzette LaRoche
- Department of Neurology, University of North Carolina, Chapel Hill, North Carolina
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Ag Lamat MSN, Abd Rahman MSH, Wan Zaidi WA, Yahya WNNW, Khoo CS, Hod R, Tan HJ. Qualitative electroencephalogram and its predictors in the diagnosis of stroke. Front Neurol 2023; 14:1118903. [PMID: 37377856 PMCID: PMC10291181 DOI: 10.3389/fneur.2023.1118903] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 05/16/2023] [Indexed: 06/29/2023] Open
Abstract
Introduction Stroke is a typical medical emergency that carries significant disability and morbidity. The diagnosis of stroke relies predominantly on the use of neuroimaging. Accurate diagnosis is pertinent for management decisions of thrombolysis and/or thrombectomy. Early identification of stroke using electroencephalogram (EEG) in the clinical assessment of stroke has been underutilized. This study was conducted to determine the relevance of EEG and its predictors with the clinical and stroke features. Methods A cross-sectional study was carried out where routine EEG assessment was performed in 206 consecutive acute stroke patients without seizures. The demographic data and clinical stroke assessment were collated using the National Institutes of Health Stroke Scale (NIHSS) score with neuroimaging. Associations between EEG abnormalities and clinical features, stroke characteristics, and NIHSS scores were evaluated. Results The mean age of the study population was 64.32 ± 12 years old, with 57.28% consisting of men. The median NIHSS score on admission was 6 (IQR 3-13). EEG was abnormal in more than half of the patients (106, 51.5%), which consisted of focal slowing (58, 28.2%) followed by generalized slowing (39, 18.9%) and epileptiform changes (9, 4.4%). NIHSS score was significantly associated with focal slowing (13 vs. 5, p < 0.05). Type of stroke and imaging characteristics were significantly associated with EEG abnormalities (p < 0.05). For every increment in NIHSS score, there are 1.08 times likely for focal slowing (OR 1.089; 95% CI 1.033, 1.147, p = 0.002). Anterior circulation stroke has 3.6 times more likely to have abnormal EEG (OR 3.628; 95% CI 1.615, 8.150, p = 0.002) and 4.55 times higher to exhibit focal slowing (OR 4.554; 95% CI 1.922, 10.789, p = 0.01). Conclusion The type of stroke and imaging characteristics are associated with EEG abnormalities. Predictors of focal EEG slowing are NIHSS score and anterior circulation stroke. The study emphasized that EEG is a simple yet feasible investigational tool, and further plans for advancing stroke evaluation should consider the inclusion of this functional modality.
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Affiliation(s)
- Mohd Syahrul Nizam Ag Lamat
- Department of Medicine, Faculty of Medicine, National University of Malaysia, Kuala Lumpur, Malaysia
- Hospital Canselor Tuanku Muhriz, Jalan Yaacob Latif, Bandar Tun Razak, Kuala Lumpur, Malaysia
| | - Muhammad Samir Haziq Abd Rahman
- Department of Medicine, Faculty of Medicine, National University of Malaysia, Kuala Lumpur, Malaysia
- Hospital Canselor Tuanku Muhriz, Jalan Yaacob Latif, Bandar Tun Razak, Kuala Lumpur, Malaysia
| | - Wan Asyraf Wan Zaidi
- Department of Medicine, Faculty of Medicine, National University of Malaysia, Kuala Lumpur, Malaysia
- Hospital Canselor Tuanku Muhriz, Jalan Yaacob Latif, Bandar Tun Razak, Kuala Lumpur, Malaysia
| | - Wan Nur Nafisah Wan Yahya
- Department of Medicine, Faculty of Medicine, National University of Malaysia, Kuala Lumpur, Malaysia
- Hospital Canselor Tuanku Muhriz, Jalan Yaacob Latif, Bandar Tun Razak, Kuala Lumpur, Malaysia
| | - Ching Soong Khoo
- Department of Medicine, Faculty of Medicine, National University of Malaysia, Kuala Lumpur, Malaysia
- Hospital Canselor Tuanku Muhriz, Jalan Yaacob Latif, Bandar Tun Razak, Kuala Lumpur, Malaysia
| | - Rozita Hod
- Hospital Canselor Tuanku Muhriz, Jalan Yaacob Latif, Bandar Tun Razak, Kuala Lumpur, Malaysia
- Department of Community Health, Faculty of Medicine, National University of Malaysia, Kuala Lumpur, Malaysia
| | - Hui Jan Tan
- Department of Medicine, Faculty of Medicine, National University of Malaysia, Kuala Lumpur, Malaysia
- Hospital Canselor Tuanku Muhriz, Jalan Yaacob Latif, Bandar Tun Razak, Kuala Lumpur, Malaysia
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Neri S, Gasparini S, Pascarella A, Santangelo D, Cianci V, Mammì A, Lo Giudice M, Ferlazzo E, Aguglia U. Epilepsy in Cerebrovascular Diseases: A Narrative Review. Curr Neuropharmacol 2023; 21:1634-1645. [PMID: 35794769 PMCID: PMC10514540 DOI: 10.2174/1570159x20666220706113925] [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] [Received: 01/14/2022] [Revised: 03/31/2022] [Accepted: 05/31/2022] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Epilepsy is a common comorbidity of cerebrovascular disease and an increasing socioeconomic burden. OBJECTIVE We aimed to provide an updated comprehensive review on the state of the art about seizures and epilepsy in stroke, cerebral haemorrhage, and leukoaraiosis. METHODS We selected English-written articles on epilepsy, stroke, and small vessel disease up until December 2021. We reported the most recent data about epidemiology, pathophysiology, prognosis, and management for each disease. RESULTS The main predictors for both ES and PSE are the severity and extent of stroke, the presence of cortical involvement and hemorrhagic transformation, while PSE is also predicted by younger age at stroke onset. Few data exist on physiopathology and seizure semiology, and no randomized controlled trial has been performed to standardize the therapeutic approach to post-stroke epilepsy. CONCLUSION Some aspects of ES and PSE have been well explored, particularly epidemiology and risk factors. On the contrary, few data exist on physiopathology, and existing evidence is mainly based on studies on animal models. Little is also known about seizure semiology, which may also be difficult to interpret by non-epileptologists. Moreover, the therapeutic approach needs standardization as regards indications and the choice of specific ASMs. Future research may help to better elucidate these aspects.
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Affiliation(s)
- Sabrina Neri
- Department of Medical and Surgical Sciences, Magna Graecia University, Catanzaro, Italy
- Regional Epilepsy Centre, Great Metropolitan Hospital, Reggio Calabria, Italy
| | - Sara Gasparini
- Department of Medical and Surgical Sciences, Magna Graecia University, Catanzaro, Italy
- Regional Epilepsy Centre, Great Metropolitan Hospital, Reggio Calabria, Italy
| | - Angelo Pascarella
- Department of Medical and Surgical Sciences, Magna Graecia University, Catanzaro, Italy
- Regional Epilepsy Centre, Great Metropolitan Hospital, Reggio Calabria, Italy
| | - Domenico Santangelo
- Department of Medical and Surgical Sciences, Magna Graecia University, Catanzaro, Italy
- Regional Epilepsy Centre, Great Metropolitan Hospital, Reggio Calabria, Italy
| | - Vittoria Cianci
- Regional Epilepsy Centre, Great Metropolitan Hospital, Reggio Calabria, Italy
| | - Anna Mammì
- Department of Medical and Surgical Sciences, Magna Graecia University, Catanzaro, Italy
| | - Michele Lo Giudice
- Department of Medical and Surgical Sciences, Magna Graecia University, Catanzaro, Italy
| | - Edoardo Ferlazzo
- Department of Medical and Surgical Sciences, Magna Graecia University, Catanzaro, Italy
- Regional Epilepsy Centre, Great Metropolitan Hospital, Reggio Calabria, Italy
| | - Umberto Aguglia
- Department of Medical and Surgical Sciences, Magna Graecia University, Catanzaro, Italy
- Regional Epilepsy Centre, Great Metropolitan Hospital, Reggio Calabria, Italy
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Diagnosis and Treatment of Poststroke Epilepsy: Where Do We Stand? Curr Treat Options Neurol 2022. [DOI: 10.1007/s11940-022-00744-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
Abstract
Purpose of Review
Stroke is the most common cause of seizures and epilepsy in older adults. This educational paper aims to give an update on current clinical aspects of diagnosis and treatment of poststroke epilepsy.
Recent Findings
Regarding epileptic seizures related to stroke, it is important to distinguish between acute symptomatic seizures and unprovoked seizures as they differ in their risk for seizure recurrence. In fact, after a single unprovoked poststroke seizure, a diagnosis of epilepsy can be made because there is a greater than 60% risk for further seizures. Clinical models that can predict the development of epilepsy after a stroke have been successfully established. However, treatment with anti-seizure medications is advised only after a first unprovoked poststroke seizure, as current treatments are not known to be effective for primary prevention. The management of poststroke epilepsy requires consideration of aspects such as age, drug-drug interactions and secondary vascular prophylaxis, yet evidence for the use of anti-seizure medications specifically in poststroke epilepsy is limited.
Summary
This text reviews the epidemiology and risk factors for poststroke epilepsy, explains the role of EEG and neuroimaging in patients with stroke and seizures and provides an overview on the clinical management of stroke-related acute symptomatic seizures and poststroke epilepsy.
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Inatomi Y, Nakajima M, Yonehara T. Cortical Involvement of a Recent Infarct Contralateral to Early Focal Seizures in Ischemic Stroke. Intern Med 2022; 62:1449-1457. [PMID: 36223921 DOI: 10.2169/internalmedicine.0120-22] [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: 04/07/2023] Open
Abstract
Objective To investigate the frequency and clinical characteristics of ischemic stroke patients with early seizures, especially with cortical involvement contralateral to their focal seizures. Methods We retrospectively studied patients with ischemic stroke admitted to our hospital. We compared the clinical characteristics of patients with and without early seizures (occurring within seven days of the stroke onset). In addition, we divided the patients with early focal seizures into two groups (patients with and without cortical involvement of a recent infarct contralateral to their focal seizure) and compared the clinical characteristics of the groups. Results Of the 5,806 patients with ischemic stroke, 65 (1.2%) were diagnosed with early seizures. A history of ischemic stroke (odds ratio [OR] 1.71), a history of seizures (OR 27.58), and a National Institutes of Health Stroke Scale score on admission (OR 1.07) were significant and independent factors associated with the presence of early seizures. Of these 65 patients, 56 had focal seizures, while the others had generalized or undetermined seizures. Cortical involvement of a recent infarct contralateral to their focal seizures was observed in 24 of these 56 patients (43%). Glucose and hemoglobin A1c levels were significantly higher in patients with cortical involvement of a recent infarct contralateral to their focal seizures than in those with infarcts in other regions. Conclusion These findings suggest that recent infarcts play a role as systemic causes of acute symptomatic seizures as well as an epileptogenic lesion in ischemic stroke patients with early focal seizures.
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Affiliation(s)
| | - Makoto Nakajima
- Department of Neurology, Graduate School of Medical Sciences, Kumamoto University, Japan
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Inatomi S, Izumi T, Eura N, Sato I, Tasaki M, Muro S, Sugie K. Electroencephalographic findings after convulsive seizures due to cerebral arterial air embolism secondary to lung cancer: a case report. J Med Case Rep 2022; 16:137. [PMID: 35346360 PMCID: PMC8962241 DOI: 10.1186/s13256-022-03300-2] [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: 11/27/2021] [Accepted: 01/31/2022] [Indexed: 11/19/2022] Open
Abstract
Background Cerebral arterial air embolism is often associated with an invasive iatrogenic etiology and a high rate of convulsive seizures. There are only a few descriptions of electroencephalogram findings in convulsive seizures due to cerebral arterial air embolism of noniatrogenic etiology. Herein, we describe the case of a patient with lung cancer and convulsive seizures with abnormalities detected on electroencephalogram caused by cerebral arterial air embolism of noniatrogenic etiology. Case presentation A 55-year-old Japanese man underwent radiotherapy and chemotherapy for cancer in the hilum of the left lung that was diagnosed after hemoptysis. One year after the diagnosis, he developed fever and chest pain that required hospitalization. At admission, he was in shock, and chest computed tomography revealed invasion of the left atrium and left main bronchus by the hilar cancer. Chest and abdominal computed tomography revealed small low-density areas within the tumor and around the intestinal membrane, which were interpreted as the presence of air due to invasion of the lung cancer. He was diagnosed with septic shock due to necrotic infection secondary to cancer invasion into the left atrium. The following day, he complained of difficulty in speaking and weakness in the left side of his body. A head computed tomography scan revealed multiple small low-density areas in the right cortex and bilateral subcortex, which were interpreted as air emboli. On day 3, he experienced generalized tonic–clonic seizures for approximately 1 minute, followed by myoclonus-like convulsions in the left lower limb and a right-sided gaze. The electroencephalogram findings after the convulsive seizures revealed partial epilepsy-like waves with intermittent spikes in the bilateral cerebral hemispheres and a diffuse slow wave in the left frontal lobe. He recovered from sepsis without recurrence of convulsive seizures; however, he died of hemoptysis on day 50 after discharge. Conclusions Electroencephalogram findings of focal spike activities and diffuse slow waves were detected in early seizures due to cerebral arterial air embolism of noniatrogenic etiology associated with lung cancer. Additional case descriptions are warranted to establish patterns in electroencephalogram findings specific to cerebral arterial air embolism.
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Ferreira‐Atuesta C, Döhler N, Erdélyi‐Canavese B, Felbecker A, Siebel P, Scherrer N, Bicciato G, Schweizer J, Sinka L, Imbach LL, Katan M, Abraira L, Santamarina E, Álvarez‐Sabín J, Winklehner M, von Oertzen TJ, Wagner JN, Gigli GL, Serafini A, Janes F, Merlino G, Valente M, Gregoraci G, Conrad J, Evers S, Lochner P, Roell F, Brigo F, Bentes C, Peralta AR, Melo TPE, Keezer MR, Duncan JS, Sander JW, Tettenborn B, Koepp MJ, Galovic M. Seizures after Ischemic Stroke: A Matched Multicenter Study. Ann Neurol 2021; 90:808-820. [PMID: 34505305 PMCID: PMC9292028 DOI: 10.1002/ana.26212] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 09/07/2021] [Accepted: 09/08/2021] [Indexed: 01/30/2023]
Abstract
Objective The purpose of this study was to identify risk factors for acute symptomatic seizures and post‐stroke epilepsy after acute ischemic stroke and evaluate the effects of reperfusion treatment. Methods We assessed the risk factors for post‐stroke seizures using logistic or Cox regression in a multicenter study, including adults from 8 European referral centers with neuroimaging‐confirmed ischemic stroke. We compared the risk of post‐stroke seizures between participants with or without reperfusion treatment following propensity score matching to reduce confounding due to treatment selection. Results In the overall cohort of 4,229 participants (mean age 71 years, 57% men), a higher risk of acute symptomatic seizures was observed in those with more severe strokes, infarcts located in the posterior cerebral artery territory, and strokes caused by large‐artery atherosclerosis. Strokes caused by small‐vessel occlusion carried a small risk of acute symptomatic seizures. 6% developed post‐stroke epilepsy. Risk factors for post‐stroke epilepsy were acute symptomatic seizures, more severe strokes, infarcts involving the cerebral cortex, and strokes caused by large‐artery atherosclerosis. Electroencephalography findings within 7 days of stroke onset were not independently associated with the risk of post‐stroke epilepsy. There was no association between reperfusion treatments in general or only intravenous thrombolysis or mechanical thrombectomy with the time to post‐stroke epilepsy or the risk of acute symptomatic seizures. Interpretation Post‐stroke seizures are related to stroke severity, etiology, and location, whereas an early electroencephalogram was not predictive of epilepsy. We did not find an association of reperfusion treatment with risks of acute symptomatic seizures or post‐stroke epilepsy. ANN NEUROL 2021;90:808–820
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Affiliation(s)
- Carolina Ferreira‐Atuesta
- Department of Clinical & Experimental EpilepsyUCL Queen Square Institute of NeurologyQueen SquareLondonUnited Kingdom
- Department of NeurologyIcahn School of Medicine at Mount SinaiNew YorkUnited States
| | - Nico Döhler
- Department of NeurologyKantonsspital St. GallenSt. GallenSwitzerland
- Specialist Clinic for Neurorehabilitation, Kliniken BeelitzBeelitz‐HeilstättenGermany
| | | | - Ansgar Felbecker
- Department of NeurologyKantonsspital St. GallenSt. GallenSwitzerland
| | - Philip Siebel
- Department of NeurologyKantonsspital St. GallenSt. GallenSwitzerland
| | - Natalie Scherrer
- Department of Neurology, Clinical Neuroscience CenterUniversity Hospital and University of ZurichZurichSwitzerland
| | - Giulio Bicciato
- Department of Neurology, Clinical Neuroscience CenterUniversity Hospital and University of ZurichZurichSwitzerland
| | - Juliane Schweizer
- Department of Neurology, Clinical Neuroscience CenterUniversity Hospital and University of ZurichZurichSwitzerland
| | - Lucia Sinka
- Department of Neurology, Clinical Neuroscience CenterUniversity Hospital and University of ZurichZurichSwitzerland
| | - Lukas L. Imbach
- Department of Neurology, Clinical Neuroscience CenterUniversity Hospital and University of ZurichZurichSwitzerland
| | - Mira Katan
- Department of Neurology, Clinical Neuroscience CenterUniversity Hospital and University of ZurichZurichSwitzerland
- Neuroscience Center ZurichUniversity of ZurichZurichSwitzerland
| | - Laura Abraira
- Epilepsy Unit, Department of NeurologyVall d'Hebron Hospital UniversitariBarcelonaSpain
- Universitat Autonoma de BarcelonaBellaterraSpain
| | - Estevo Santamarina
- Epilepsy Unit, Department of NeurologyVall d'Hebron Hospital UniversitariBarcelonaSpain
- Universitat Autonoma de BarcelonaBellaterraSpain
| | - José Álvarez‐Sabín
- Epilepsy Unit, Department of NeurologyVall d'Hebron Hospital UniversitariBarcelonaSpain
- Universitat Autonoma de BarcelonaBellaterraSpain
| | - Michael Winklehner
- Department of Neurology 1Kepler UniversitätsklinikumLinzAustria
- Division of Neuropathology and Neurochemistry, Department of NeurologyMedical University of ViennaViennaAustria
| | | | | | - Gian Luigi Gigli
- Department of MedicineUniversity of Udine and Clinical Neurology, Udine University HospitalUdineItaly
| | - Anna Serafini
- Department of MedicineUniversity of Udine and Clinical Neurology, Udine University HospitalUdineItaly
| | - Francesco Janes
- Department of MedicineUniversity of Udine and Clinical Neurology, Udine University HospitalUdineItaly
| | - Giovanni Merlino
- Department of MedicineUniversity of Udine and Clinical Neurology, Udine University HospitalUdineItaly
| | - Mariarosaria Valente
- Department of MedicineUniversity of Udine and Clinical Neurology, Udine University HospitalUdineItaly
| | | | - Julian Conrad
- Department of NeurologyUniversity of MuensterMuensterGermany
- Department of Neurology and German Center for Vertigo and Balance Disorders‐IFB‐LMULudwig Maximilians University of MunichMunichGermany
| | - Stefan Evers
- Department of NeurologyUniversity of MuensterMuensterGermany
- Department of NeurologyKrankenhaus LindenbrunnCoppenbrüggeGermany
| | | | - Frauke Roell
- Department of NeurologySaarland University Medical CenterHomburgGermany
| | - Francesco Brigo
- Division of NeurologyHospital of Merano‐Meran (SABES‐ASDAA)MeranoItaly
| | - Carla Bentes
- Department of Neurosciences and Mental Health (Neurology)Hospital de Santa Maria‐CHLN, Faculdade de Medicina, Universidade de LisboaLisboaPortugal
| | - Ana Rita Peralta
- Department of Neurosciences and Mental Health (Neurology)Hospital de Santa Maria‐CHLN, Faculdade de Medicina, Universidade de LisboaLisboaPortugal
| | - Teresa Pinho e Melo
- Department of Neurosciences and Mental Health (Neurology)Hospital de Santa Maria‐CHLN, Faculdade de Medicina, Universidade de LisboaLisboaPortugal
| | - Mark R. Keezer
- Stichting Epilepsie Instellingen Nederland – (SEIN)HeemstedeThe Netherlands
- Centre Hospitalier de l'Université de MontréalMontrealQuebecCanada
| | - John S. Duncan
- Department of Clinical & Experimental EpilepsyUCL Queen Square Institute of NeurologyQueen SquareLondonUnited Kingdom
- Chalfont Centre for EpilepsyChalfont St. PeterUnited Kingdom
| | - Josemir W. Sander
- Department of Clinical & Experimental EpilepsyUCL Queen Square Institute of NeurologyQueen SquareLondonUnited Kingdom
- Stichting Epilepsie Instellingen Nederland – (SEIN)HeemstedeThe Netherlands
- Chalfont Centre for EpilepsyChalfont St. PeterUnited Kingdom
- Department of Neurology, West of China HospitalChengduChina
| | | | - Matthias J. Koepp
- Department of Clinical & Experimental EpilepsyUCL Queen Square Institute of NeurologyQueen SquareLondonUnited Kingdom
- Chalfont Centre for EpilepsyChalfont St. PeterUnited Kingdom
| | - Marian Galovic
- Department of Clinical & Experimental EpilepsyUCL Queen Square Institute of NeurologyQueen SquareLondonUnited Kingdom
- Department of NeurologyKantonsspital St. GallenSt. GallenSwitzerland
- Department of Neurology, Clinical Neuroscience CenterUniversity Hospital and University of ZurichZurichSwitzerland
- Chalfont Centre for EpilepsyChalfont St. PeterUnited Kingdom
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10
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Multifactorial Predictors of Late Epileptic Seizures Related to Stroke: Evaluation of the Current Possibilities of Stratification Based on Existing Prognostic Models-A Comprehensive Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18031079. [PMID: 33530431 PMCID: PMC7908250 DOI: 10.3390/ijerph18031079] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 01/22/2021] [Accepted: 01/25/2021] [Indexed: 11/17/2022]
Abstract
Background: Epilepsy associated with strokes is a significant clinical and public health problem and has a negative impact on prognosis and clinical outcome. A late epileptic seizure occurring seven days after stroke is actually equated with poststroke epilepsy due to the high risk of recurrence. Predictive models evaluated in the acute phase of stroke would allow for the stratification and early selection of patients at higher risk of developing late seizures. Methods: The most relevant papers in this field were reviewed to establish multifactorial predictors of late seizures and attempt to standardize and unify them into a common prognostic model. Results: Clinical and radiological factors have become the most valuable and reproducible predictors in many reports, while data on electroencephalographic, genetic, and blood biomarkers were limited. The existing prognostic models, CAVE and SeLECT, based on relevant, readily available, and routinely assessed predictors, should be validated and improved in multicenter studies for widespread use in stroke units. Conclusions: Due to contradictory reports, a common and reliable model covering all factors is currently not available. Further research might refine forecasting models by incorporating advanced radiological neuroimaging or quantitative electroencephalographic analysis.
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Abstract
AbstractContinuous electroencephalogram (cEEG) has become an indispensable technique in the management of critically ill patients for early detection and treatment of non-convulsive seizures (NCS) and non-convulsive status epilepticus (NCSE). It has also brought about a renaissance in a wide range of rhythmic and periodic patterns with heterogeneous frequency and morphology. These patterns share the rhythmic and sharp appearances of electrographic seizures, but often lack the necessary frequency, spatiotemporal evolution and clinical accompaniments to meet the definitive criteria for ictal patterns. They may be associated with cerebral metabolic crisis and neuronal injury, therefore not clearly interictal either, but lie along an intervening spectrum referred to as ictal-interictal continuum (IIC). Generally speaking, rhythmic and periodic patterns are categorized as interictal patterns when occurring at a rate of <1Hz, and are categorized as NCS and NCSE when occurring at a rate of >2.5 Hz with spatiotemporal evolution. As such, IIC commonly includes the rhythmic and periodic patterns occurring at a rate of 1–2.5 Hz without spatiotemporal evolution and clinical correlates. Currently there are no evidence-based guidelines on when and if to treat patients with IIC patterns, and particularly how aggressively to treat, presenting a challenging electrophysiological and clinical conundrum. In practice, a diagnostic trial with preferably a non-sedative anti-seizure medication (ASM) can be considered with the end point being both clinical and electrographic improvement. When available and necessary, correlation of IIC with biomarkers of neuronal injury, such as neuronal specific enolase (NSE), neuroimaging, depth electrode recording, cerebral microdialysis and oxygen measurement, can be assessed for the consideration of ASM treatment. Here we review the recent advancements in their clinical significance, risk stratification and treatment algorithm.
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12
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Zafar SF, Subramaniam T, Osman G, Herlopian A, Struck AF. Electrographic seizures and ictal-interictal continuum (IIC) patterns in critically ill patients. Epilepsy Behav 2020; 106:107037. [PMID: 32222672 DOI: 10.1016/j.yebeh.2020.107037] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 03/07/2020] [Accepted: 03/07/2020] [Indexed: 02/06/2023]
Abstract
Critical care long-term continuous electroencephalogram (cEEG) monitoring has expanded dramatically in the last several decades spurned by technological advances in EEG digitalization and several key clinical findings: 1-Seizures are relatively common in the critically ill-large recent observational studies suggest that around 20% of critically ill patients placed on cEEG have seizures. 2-The majority (~75%) of patients who have seizures have exclusively "electrographic seizures", that is, they have no overt ictal clinical signs. Along with the discovery of the unexpectedly high incidence of seizures was the high prevalence of EEG patterns that share some common features with archetypical electrographic seizures but are not uniformly considered to be "ictal". These EEG patterns include lateralized periodic discharges (LPDs) and generalized periodic discharges (GPDs)-patterns that at times exhibit ictal-like behavior and at other times behave more like an interictal finding. Dr. Hirsch and colleagues proposed a conceptual framework to describe this spectrum of patterns called the ictal-interictal continuum (IIC). In the following years, investigators began to answer some of the key pragmatic clinical concerns such as which patients are at risk of seizures and what is the optimal duration of cEEG use. At the same time, investigators have begun probing the core questions for critical care EEG-what is the underlying pathophysiology of these patterns, at what point do these patterns cause secondary brain injury, what are the optimal treatment strategies, and how do these patterns affect clinical outcomes such as neurological disability and the development of epilepsy. In this review, we cover recent advancements in both practical concerns regarding cEEG use, current treatment strategies, and review the evidence associating IIC/seizures with poor clinical outcomes.
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Affiliation(s)
- Sahar F Zafar
- Department of Neurology, Massachusetts General Hospital/Harvard Medical School, Boston, MA, United States of America
| | - Thanujaa Subramaniam
- Department of Neurology, University of Wisconsin-Madison, Madison, WI, United States of America
| | - Gamaleldin Osman
- Department of Neurology, Henry Ford Hospital, Detroit, MI, United States of America
| | - Aline Herlopian
- Department of Neurology, Yale University, New Haven, CT, United States of America
| | - Aaron F Struck
- Department of Neurology, University of Wisconsin-Madison, Madison, WI, United States of America.
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13
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Raucci U, Pro S, Di Capua M, Di Nardo G, Villa MP, Striano P, Parisi P. A reappraisal of the value of video-EEG recording in the emergency department. Expert Rev Neurother 2020; 20:459-475. [PMID: 32249626 DOI: 10.1080/14737175.2020.1747435] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Umberto Raucci
- Pediatric Emergency Department, Bambino Gesù Children’s Hospital, IRCCS, Rome, Italy
| | - Stefano Pro
- Neurophysiological Unit, Department of Neurosciences, Bambino Gesù Children’s Hospital, IRCCS, Rome, Italy
| | - Matteo Di Capua
- Neurophysiological Unit, Department of Neurosciences, Bambino Gesù Children’s Hospital, IRCCS, Rome, Italy
| | - Giovanni Di Nardo
- Chair of Pediatrics, Child Neurology, NESMOS Department, Faculty of Medicine and Psychology, Sapienza University, c/o Sant’Andrea Hospital, Rome, Italy
| | - Maria Pia Villa
- Chair of Pediatrics, Child Neurology, NESMOS Department, Faculty of Medicine and Psychology, Sapienza University, c/o Sant’Andrea Hospital, Rome, Italy
| | - Pasquale Striano
- Paediatric Neurology and Muscular Diseases Unit, IRCCS ‘G. Gaslini’ Institute, Genova, Italy
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genoa, ‘G. Gaslini’ Institute, Genova, Italy
| | - Pasquale Parisi
- Chair of Pediatrics, Child Neurology, NESMOS Department, Faculty of Medicine and Psychology, Sapienza University, c/o Sant’Andrea Hospital, Rome, Italy
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14
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Doerrfuss JI, Kilic T, Ahmadi M, Holtkamp M, Weber JE. Quantitative and Qualitative EEG as a Prediction Tool for Outcome and Complications in Acute Stroke Patients. Clin EEG Neurosci 2020; 51:121-129. [PMID: 31533467 DOI: 10.1177/1550059419875916] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Currently, the relevance of EEG measurements in acute stroke patients is considered low in clinical practice. However, recent studies on the predictive value of EEG measurements after stroke for various outcomes may increase the role of EEG in patients with stroke. We aimed to review the current literature on the utility of EEG measurements after stroke as a tool to predict outcome and complications, focusing on studies in which the EEG measurement was performed in the acute phase after the event and in which long-term outcome measures were reported. In our literature review, we identified 4 different outcome measures (functional outcome, mortality, development of post-stroke cognitive decline, and development of post-stroke epilepsy) where studies on the utility of acute EEG measurements exist. There is a large body of evidence for the prediction of functional outcome, in which a multitude of associated quantitative and qualitative EEG parameters are described. In contrast, only few studies focus on mortality as outcome parameter. We found studies of high methodical quality on the prediction of post-stroke cognitive decline, though the number of patients in these studies often was small. The role of EEG as a prediction tool for seizures and epilepsy after stroke could increase after a recently published study, especially if its result can be incorporated into already existing post-stroke epilepsy prediction tools. In summary, EEG is useful for the prediction of functional outcome, mortality, development of post-stroke cognitive decline and epilepsy, even though there is a discrepancy between the large amount of studies on EEG in acute stroke patients and its underuse in clinical practice.
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Affiliation(s)
- Jakob I Doerrfuss
- Department of Neurology, Charité-Universitätsmedizin Berlin, Berlin, Germany.,Berlin Institute of Health (BIH), Berlin, Germany
| | - Tayfun Kilic
- Berlin Institute of Health (BIH), Berlin, Germany
| | - Michael Ahmadi
- Department of Neurology, Charité-Universitätsmedizin Berlin, Berlin, Germany.,Berlin Institute of Health (BIH), Berlin, Germany
| | - Martin Holtkamp
- Department of Neurology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Joachim E Weber
- Department of Neurology, Charité-Universitätsmedizin Berlin, Berlin, Germany.,Berlin Institute of Health (BIH), Berlin, Germany
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15
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Gavaret M, Marchi A, Lefaucheur JP. Clinical neurophysiology of stroke. HANDBOOK OF CLINICAL NEUROLOGY 2019; 161:109-119. [PMID: 31307595 DOI: 10.1016/b978-0-444-64142-7.00044-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Stroke constitutes the third most common cause of death and the leading cause of acquired neurologic handicap. During ischemic stroke, very early after the onset of the focal perfusion deficit, excitotoxicity triggers a number of events that can further contribute to tissue death. Such events include peri-infarct depolarizations and spreading depolarizations (SDs) within the ischemic penumbra. SDs spread slowly through continuous gray matter at a typical velocity of 2-5mm/min. SDs exacerbate neuronal injury through prolonged ionic breakdown and SD-related hypoperfusion (spreading ischemia). Scalp EEG alone is not yet sufficient to reliably diagnose SDs. Hyperexcitability occurs in parallel, both in the acute and chronic phases of stroke. Stroke is a common cause of new-onset epileptic seizures after middle age and is the leading cause of symptomatic epilepsy in adults. The last part of this chapter is dedicated to noninvasive neurophysiologic techniques that can be used to promote stroke rehabilitation. These techniques mainly include repetitive transcranial magnetic stimulation and tDCS. These approaches are based on the concept of interhemispheric rivalry and aim at modulating the imbalance of cortical activities between both hemispheres resulting from stroke.
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Affiliation(s)
- Martine Gavaret
- INSERM UMR894, Paris Descartes University, Paris, France; Service de Neurophysiologie Clinique, Centre Hospitalier Sainte Anne, Paris, France.
| | - Angela Marchi
- Service de Neurophysiologie Clinique, Centre Hospitalier Sainte Anne, Paris, France
| | - Jean-Pascal Lefaucheur
- Service de Physiologie-Explorations Fonctionnelles, Hôpital Henri Mondor, Assistance Publique-Hôpitaux de Paris, Créteil, France; EA 4391, Université Paris Est Créteil, Créteil, France
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16
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Feyissa AM, Hasan TF, Meschia JF. Stroke-related epilepsy. Eur J Neurol 2018; 26:18-e3. [PMID: 30320425 DOI: 10.1111/ene.13813] [Citation(s) in RCA: 84] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 09/19/2018] [Indexed: 01/16/2023]
Abstract
Stroke is the cause of about 10% of all epilepsy and 55% of newly diagnosed seizures among the elderly. Although recent advances in acute stroke therapy have improved longevity, there has been a consequent rise in the prevalence of stroke-related epilepsy (STRE). Many clinical studies make a distinction between early (within 7 days of onset of stroke) and late (beyond 7 days of onset of stroke) seizures based on presumed pathophysiological differences. Although early seizures are thought to be the consequence of local metabolic disturbances without altered neuronal networks, late seizures are thought to occur when the brain has acquired a predisposition for seizures. Overall, STRE has a good prognosis, being well controlled by antiepileptic drugs. However, up to 25% of cases become drug resistant. STRE can also result in increased morbidity, longer hospitalization, greater disability at discharge and greater resource utilization. Additional controlled trials are needed to explore the primary and secondary prevention of STRE as well as to provide high-quality evidence on efficacy and tolerability of antiepileptic drugs to guide treatment of STRE. Robust pre-clinical and clinical prediction models of STRE are also needed to develop treatments to prevent the transformation of infarcted tissue into an epileptic focus.
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Affiliation(s)
- A M Feyissa
- Department of Neurology, Mayo Clinic, Jacksonville, FL, USA
| | - T F Hasan
- Department of Neurologic Surgery, Mayo Clinic, Jacksonville, FL, USA
| | - J F Meschia
- Department of Neurology, Mayo Clinic, Jacksonville, FL, USA
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17
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Bentes C, Martins H, Peralta AR, Morgado C, Casimiro C, Franco AC, Fonseca AC, Geraldes R, Canhão P, Pinho e Melo T, Paiva T, Ferro JM. Early EEG predicts poststroke epilepsy. Epilepsia Open 2018; 3:203-212. [PMID: 29881799 PMCID: PMC5983181 DOI: 10.1002/epi4.12103] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/13/2018] [Indexed: 01/21/2023] Open
Abstract
OBJECTIVE Electroencephalography (EEG) can identify biomarkers of epileptogenesis and ictogenesis. However, few studies have used EEG in the prediction of poststroke seizures. Our primary aim was to evaluate whether early EEG abnormalities can predict poststroke epilepsy. METHODS A prospective study of consecutive acute anterior circulation ischemic stroke patients, without previous epileptic seizures, who were admitted to a stroke unit over 24 months and followed for 1 year. All patients underwent standardized clinical and diagnostic assessment during the hospital stay and after discharge. Video-EEG was performed in the first 72 h (first EEG), daily for the first 7 days, in case of neurological deterioration, at discharge, and at 12 months after stroke. The occurrence of epileptic seizures in the first year after stroke (primary outcome) was evaluated clinically and neurophysiologically during the hospital stay and at 12 months. A telephone interview was also performed at 6 months. The primary outcome was the occurrence of at least one unprovoked seizure (poststroke epilepsy). Secondary outcomes were the occurrence of at least one acute symptomatic seizure and (interictal and/or ictal) epileptiform activity on at least one EEG during the hospital stay for acute stroke. The first EEG variables were defined using international criteria/terminology. Bivariate and multivariate analyses with adjustment for age, admission National Institutes of Health Stroke Scale (NIHSS) score, and Alberta Stroke Program Early CT Score (ASPECTS) were performed. RESULTS A total of 151 patients were included; 38 patients (25.2%) had an acute symptomatic seizure and 23 (16%) had an unprovoked seizure.The first EEG background activity asymmetry and first EEG with interictal epileptiform activity were independent predictors of poststroke epilepsy during the first year after stroke (P = 0.043 and P = 0.043, respectively). No EEG abnormality independently predicted acute symptomatic seizures. However, the presence of periodic discharges on the first EEG was an independent predictor of epileptiform activity (p = 0.009) during the hospital stay. SIGNIFICANCE An early poststroke EEG can predict epilepsy in the first year after stroke, independently from clinical and imaging-based infarct severity.
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Affiliation(s)
- Carla Bentes
- EEG/Sleep Laboratory / Stroke UnitDepartment of Neurosciences and Mental Health (Neurology)Santa Maria Hospital ‐ North Lisbon Hospitalar CentreLisbonPortugal
- Faculty of MedicineUniversity of LisbonLisbonPortugal
| | - Hugo Martins
- Department of MedicineSão José Hospital ‐ Central Lisbon Hospitalar CentreLisbonPortugal
| | - Ana Rita Peralta
- EEG/Sleep Laboratory / Stroke UnitDepartment of Neurosciences and Mental Health (Neurology)Santa Maria Hospital ‐ North Lisbon Hospitalar CentreLisbonPortugal
- Faculty of MedicineUniversity of LisbonLisbonPortugal
| | - Carlos Morgado
- Faculty of MedicineUniversity of LisbonLisbonPortugal
- Department of NeuroradiologySanta Maria Hospital ‐ North Lisbon Hospitalar CentreLisbonPortugal
| | - Carlos Casimiro
- Department of NeuroradiologySanta Maria Hospital ‐ North Lisbon Hospitalar CentreLisbonPortugal
| | - Ana Catarina Franco
- EEG/Sleep Laboratory / Stroke UnitDepartment of Neurosciences and Mental Health (Neurology)Santa Maria Hospital ‐ North Lisbon Hospitalar CentreLisbonPortugal
| | - Ana Catarina Fonseca
- EEG/Sleep Laboratory / Stroke UnitDepartment of Neurosciences and Mental Health (Neurology)Santa Maria Hospital ‐ North Lisbon Hospitalar CentreLisbonPortugal
- Faculty of MedicineUniversity of LisbonLisbonPortugal
| | - Ruth Geraldes
- EEG/Sleep Laboratory / Stroke UnitDepartment of Neurosciences and Mental Health (Neurology)Santa Maria Hospital ‐ North Lisbon Hospitalar CentreLisbonPortugal
- Faculty of MedicineUniversity of LisbonLisbonPortugal
| | - Patrícia Canhão
- EEG/Sleep Laboratory / Stroke UnitDepartment of Neurosciences and Mental Health (Neurology)Santa Maria Hospital ‐ North Lisbon Hospitalar CentreLisbonPortugal
- Faculty of MedicineUniversity of LisbonLisbonPortugal
| | - Teresa Pinho e Melo
- EEG/Sleep Laboratory / Stroke UnitDepartment of Neurosciences and Mental Health (Neurology)Santa Maria Hospital ‐ North Lisbon Hospitalar CentreLisbonPortugal
- Faculty of MedicineUniversity of LisbonLisbonPortugal
| | - Teresa Paiva
- Eletroencefalography and Clinic Neurophysiology Centre (CENC)LisbonPortugal
| | - José M. Ferro
- EEG/Sleep Laboratory / Stroke UnitDepartment of Neurosciences and Mental Health (Neurology)Santa Maria Hospital ‐ North Lisbon Hospitalar CentreLisbonPortugal
- Faculty of MedicineUniversity of LisbonLisbonPortugal
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18
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Onder H, Arsava EM, Topcuoglu MA, Dericioglu N. Do Video-EEG Monitoring Findings in ICU Patients With Acute Stroke Predict Development of Seizures and Survival During Follow-up? Clin EEG Neurosci 2017; 48:417-421. [PMID: 28844159 DOI: 10.1177/1550059417727225] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
PURPOSE Ischemic or hemorrhagic stroke are among the most common causes of seizures, especially in the elderly. EEG is the only technique that can detect epileptiform abnormalities (EA) and nonconvulsive status epilepticus (NCSE), which may negatively affect recovery of these patients. Herein we aimed to investigate the potential predictive value of long-term EEG findings in terms of poststroke seizures (PSS) and survival, in stroke patients followed up in the neurological intensive care unit (NICU). METHODS Video-EEG reports of stroke patients (ischemic and hemorrhagic) hospitalized between 2009 and 2014 in our NICU were reviewed. Patients with <2 months of survival were excluded. Follow-up data were obtained via telephone calls or patient charts. The correlation between EEG findings and early (≤1 week) and late seizure (>1 week) occurrence, recurrent seizure development, outcome, and survival were analyzed statistically. RESULTS Overall 50 patients (27 female, 23 male; age, 26-85 years) were included in the final analysis. Almost 60% developed PSS (~2/3 were early). There was no difference between ischemic versus hemorrhagic stroke patients ( P = .72). Recurrent seizures were more common in the late seizure group ( P < .001). EAs occurred in one-third of the study cohort. This finding did not predict seizure development ( P = .93) or survival ( P = .61). CONCLUSION PSS are a frequent finding in stroke patients followed up in NICU. EAs are not uncommon, but do not predict seizure occurrence or survival.
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Affiliation(s)
- Halil Onder
- 1 Hacettepe University Faculty of Medicine, Ankara, Turkey
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19
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Wang JZ, Vyas MV, Saposnik G, Burneo JG. Incidence and management of seizures after ischemic stroke. Neurology 2017; 89:1220-1228. [DOI: 10.1212/wnl.0000000000004407] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 06/29/2017] [Indexed: 02/03/2023] Open
Abstract
Objective:We conducted a meta-analysis of the incidence of early and late seizures following ischemic stroke as well as a systematic review of their pharmacologic treatment.Methods:Observational studies that reported incidence of seizures following ischemic stroke and those that reported treatment response to any particular antiepileptic drugs (AEDs) were included. Risk of bias was assessed by predefined study characteristics. Random effects meta-analysis was conducted for all studies where data were available for the incidence of early and late stroke-related seizures. Heterogeneity was measured with I2 statistic and sensitivity analyses were performed using prespecified variables. A qualitative synthesis of studies reporting use of AEDs for stroke-related seizures was performed.Results:Forty-one studies from 10,554 articles were identified; 35 studies reported incidence of stroke-related seizures and 6 studies reported effects of specific AEDs. Most studies were of low to moderate quality. Rate of early seizures was 3.3% (95% confidence interval 2.8%–3.9%, I2 = 92.8%), while the incidence of late seizures or epilepsy was 18 per 1,000 person-years (95% confidence interval 1.5–2.2, I2 = 94.1%). The high degree of heterogeneity could not be explained from the sensitivity analyses. For management of stroke-related seizures, no single AED was found to be more effective over others, though newer AEDs were associated with fewer side effects.Conclusions:The burden of stroke-related seizures and epilepsy due to ischemic stroke is substantial. Further studies are required to determine risk factors for epilepsy following ischemic stroke and optimal secondary prevention.
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20
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Lima FO, Ricardo JA, Coan AC, Soriano DC, Avelar WM, Min LL. Electroencephalography Patterns and Prognosis in Acute Ischemic Stroke. Cerebrovasc Dis 2017; 44:128-134. [DOI: 10.1159/000477674] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 05/18/2017] [Indexed: 01/06/2023] Open
Abstract
Background and Purpose: The prognostic significance of interictal epileptiform discharges (IED) and periodic patterns (PP) after ischemic stroke has not been assessed. We sought to test whether IED and PP, detected on standard Electroencephalography (EEG) performed during the acute phase of ischemic stroke are associated with a worse functional outcome. Methods: One-hundred-fifty-seven patients 18 years or older with a diagnosis of acute ischemic stroke presenting within 72 h from stroke onset were prospectively enrolled and followed. Patients with a pre-stroke history of seizures or epilepsy, previous debilitating neurological disease or conditions that precluded the performance of EEG were excluded. Interpretation was performed by a blinded board certified neurophysiologist. IED and PP (grouped as epileptiform activity [EA]) were defined according to proposed guidelines. Univariable and multivariable analyses were used to identify predictors of outcome (modified Rankin Scale dichotomized ≤2 vs. ≥3) at 3 months. Results: In the univariable analysis, admission NIHSS (OR 1.20, 95% CI 1.12-1.28, p = 0.001), age (OR 1.03, 95% CI 1.01-1.05, p = 0.02), and presence of EA (OR 2.94, 95% CI 1.51-5.88, p = 0.001) were significantly associated with the outcome at 3 months. In the multivariable analysis, only admission NIHSS (OR 1.19, 95% CI 1.11-1.28, p < 0.001) and the presence of EA (OR 2.27, 95% CI 1.04-5.00, p = 0.04) were independently associated with the prognosis. Significance: The importance of EEG in the prognosis of acute ischemic stroke warrants additional research, examining the role of medication therapy on the outcome and the occurrence of seizures for those patients with specific EEG patterns.
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21
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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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Flores A, Ribó M, Rubiera M, Gonzalez-Cuevas M, Pagola J, Rodriguez-Luna D, Muchada M, Kallas J, Meler P, Sanjuan E, Alvarez-Sabin J, Montaner J, Molina CA. Monitoring of Cortical Activity Postreperfusion. A Powerful Tool for Predicting Clinical Response Immediately After Recanalization. J Neuroimaging 2014; 25:257-262. [DOI: 10.1111/jon.12113] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Revised: 12/01/2013] [Accepted: 01/27/2014] [Indexed: 11/27/2022] Open
Affiliation(s)
- Alan Flores
- Stroke Unit, Department of Neurology, Vall d’Hebron University Hospital, Vall d’Hebron Research Institute, Departament de Medicina; Universitat Autonoma de Barcelona; Barcelona Spain
| | - Marc Ribó
- Stroke Unit, Department of Neurology, Vall d’Hebron University Hospital, Vall d’Hebron Research Institute, Departament de Medicina; Universitat Autonoma de Barcelona; Barcelona Spain
| | - Marta Rubiera
- Stroke Unit, Department of Neurology, Vall d’Hebron University Hospital, Vall d’Hebron Research Institute, Departament de Medicina; Universitat Autonoma de Barcelona; Barcelona Spain
| | - Montserrat Gonzalez-Cuevas
- Stroke Unit, Department of Neurology, Vall d’Hebron University Hospital, Vall d’Hebron Research Institute, Departament de Medicina; Universitat Autonoma de Barcelona; Barcelona Spain
| | - Jorge Pagola
- Stroke Unit, Department of Neurology, Vall d’Hebron University Hospital, Vall d’Hebron Research Institute, Departament de Medicina; Universitat Autonoma de Barcelona; Barcelona Spain
| | - David Rodriguez-Luna
- Stroke Unit, Department of Neurology, Vall d’Hebron University Hospital, Vall d’Hebron Research Institute, Departament de Medicina; Universitat Autonoma de Barcelona; Barcelona Spain
| | - Marián Muchada
- Stroke Unit, Department of Neurology, Vall d’Hebron University Hospital, Vall d’Hebron Research Institute, Departament de Medicina; Universitat Autonoma de Barcelona; Barcelona Spain
| | - Julia Kallas
- Stroke Unit, Department of Neurology, Vall d’Hebron University Hospital, Vall d’Hebron Research Institute, Departament de Medicina; Universitat Autonoma de Barcelona; Barcelona Spain
| | - Pilar Meler
- Stroke Unit, Department of Neurology, Vall d’Hebron University Hospital, Vall d’Hebron Research Institute, Departament de Medicina; Universitat Autonoma de Barcelona; Barcelona Spain
| | - Estela Sanjuan
- Stroke Unit, Department of Neurology, Vall d’Hebron University Hospital, Vall d’Hebron Research Institute, Departament de Medicina; Universitat Autonoma de Barcelona; Barcelona Spain
| | - Jose Alvarez-Sabin
- Stroke Unit, Department of Neurology, Vall d’Hebron University Hospital, Vall d’Hebron Research Institute, Departament de Medicina; Universitat Autonoma de Barcelona; Barcelona Spain
| | - Joan Montaner
- Stroke Unit, Department of Neurology, Vall d’Hebron University Hospital, Vall d’Hebron Research Institute, Departament de Medicina; Universitat Autonoma de Barcelona; Barcelona Spain
| | - Carlos A. Molina
- Stroke Unit, Department of Neurology, Vall d’Hebron University Hospital, Vall d’Hebron Research Institute, Departament de Medicina; Universitat Autonoma de Barcelona; Barcelona Spain
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Abstract
Stroke is one of the leading causes of long-term disability. One in six people in the world will suffer a stroke in their lifetime, with the annual incidence about 117 per 100,000 person-years in developing countries. It has also been shown to be the cause of 10-15% of epilepsies, more prevalent in patients above 60 years of age. The incidence of early seizures in acute stroke ranges 3-33%, with 50-78% of the seizures occurring within the first 24 hours. Occurrence of seizures within 24 hours of stroke is associated with higher 30-day mortality, which may be a reflection of severe neuronal damage. Alteration in intracellular ion concentrations and hyper-excitability are thought to be etiologies for early seizures in acute stroke, and the increased stress on already vulnerable tissues may result in worsening of stroke symptoms. Early detection of seizures and subsequent effective treatment can prevent additional metabolic burden and damage to the blood-brain barrier, which may improve recovery and overall outcome. Clinical seizures can be recognized readily at bedside and lead to prompt medical intervention. In contrast, electrographic seizures with subtle or no clinical sign and non-convulsive status epilepticus (NCSE) may escape clinical observation and be left untreated. With the use of continuous electroencephalogram monitoring (cEEG), patients with electrographic seizures can be better identified and medically treated more quickly. In addition to electrographic seizures, the presence of isolated and periodic epileptiform patterns on electroencephalogram (EEG) suggests the need for medical treatment since up to 75% of these patients have been found to develop early post-stroke seizures. Newer anti-epileptic medications with intravenous formulation, together with traditional regimen and barbiturate, have shown promise in controlling early post-stroke seizures and possibly improving outcome.
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Analysis of risk factors for first seizure after stroke in Chinese patients. BIOMED RESEARCH INTERNATIONAL 2013; 2013:702871. [PMID: 24298553 PMCID: PMC3835814 DOI: 10.1155/2013/702871] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/06/2013] [Revised: 08/07/2013] [Accepted: 09/15/2013] [Indexed: 11/18/2022]
Abstract
The aim of this study is to assess related risk factors and predict early- and late-onset seizure after first-ever stroke. A total of 2474 consecutive patients with initial stroke in China from 1997 to 2007 were retrospectively investigated, in which, 24 clinical and radiological indexes were used for evaluation. Odds ratio (OR) and 95% confidence interval (CI) were calculated by logistic regression. A total of 232 (11.1%) of patients developed seizures during a mean follow-up period of 18 months, with 123 experiencing early-onset and 109 late-onset seizure. The independent risk factors for early-onset seizure were large lesion (OR = 9.36), subarachnoid hemorrhage (OR = 5.28), initial hyponatremia (OR = 2.10), and cortical involvement (OR = 1.33). The independent risk factors for late-onset seizure were cortical involvement (OR = 11.84) and large lesion (OR = 1.87). These results demonstrated that the risk factors for early seizure after stroke are large lesion, subarachnoid hemorrhage, and cortical involvement. Surprisingly, hyponatremia also predicts seizure in stroke patients. Cortical involvement is a major risk factor for late-onset seizure after stroke.
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Abstract
The incidence of epilepsy in the elderly has increased steadily over the last few decades. In some industrialized countries, one-third of the population is expected to be over the age of 65 in 2030. Therefore, we will face a dramatic increase in the number of elderly patients with epilepsy, many of whom will likely present comorbidities. This increase will put a heavy burden on health care and pension systems. This article focuses on epidemiology, diagnosis and treatment in epilepsies in the elderlies and outlines current research as well as future requirements for research. The diagnosis of epilepsy in the elderly can be difficult and may require long-term video-EEG monitoring. Stroke is the most frequent etiology in epilepsies in the elderlies. Status epilepticus in acute symptomatic epilepsies often results in fatality and may become an increasing health problem. The article also describes the current strategies in antiepileptic drug treatment and epilepsy surgery in the elderly. Novel antiepileptic drugs are necessary as current antiepileptics have strong interaction potentials and harmful side effects, making them ill-suboptimal for treating epilepsy in the elderly.
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Affiliation(s)
- H Stefan
- University Hospital Erlangen, Epilepsy Center, Germany.
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27
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De Reuck J. Risk factors for late-onset seizures related to cerebral contusions in adults with a moderate traumatic brain injury. Clin Neurol Neurosurg 2011; 113:469-71. [DOI: 10.1016/j.clineuro.2011.02.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2010] [Revised: 12/04/2010] [Accepted: 02/05/2011] [Indexed: 10/18/2022]
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28
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Seizures in childhood ischemic stroke in Taiwan. Brain Dev 2009; 31:294-9. [PMID: 18650041 DOI: 10.1016/j.braindev.2008.05.006] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2007] [Revised: 05/14/2008] [Accepted: 05/14/2008] [Indexed: 11/24/2022]
Abstract
In this retrospective study, we collected clinical and radiographic data on children (age range, 1 month to 18 years) with symptoms and radiographic confirmation of seizure after ischemic stroke for the period of January 1996 to July 2006. Thirty-nine out of 94 children with ischemic stroke had poststroke seizures. Thirty-three out of 39 children with poststroke seizures had new onset seizures but only data of 28 were available. Infection was the most common etiology in the early poststroke seizure group (52.4%) but not in the late poststroke seizure group (0%). Infarction involving arterial ischemic stroke of anterior circulation were the most common in both the early poststroke seizure (61.9%) and the late poststroke seizure group (57.1%). Epilepsy was the most common sequelae in both the early poststroke seizure (38.1%) and late poststroke seizure group (100%). Children who had initial focal neurological sign (100% vs. 38.1%; P=0.007) or the focal cortical dysfunction on EEG (85.7% vs. 33.3%; P=0.029) were prone to develop late poststroke seizures. Late poststroke seizures had a high risk of developing poststroke epilepsy (100% vs. 38.1%; P=0.007). We conclude that seizures commonly occur in childhood ischemic stroke. Most poststroke seizures developed at an early stage. Infection was the most common etiology that caused early poststroke seizures in childhood ischemic stroke. Initial focal neurological signs and focal cortical dysfunction on EEG are risk factors for developing epilepsy. Poststroke seizures did not affect mortality, but there was a significant difference in normal outcome and epilepsy between those with or without poststroke seizures.
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De Reuck J, De Groote L, Van Maele G. Single seizure and epilepsy in patients with a cerebral territorial infarct. J Neurol Sci 2008; 271:127-30. [DOI: 10.1016/j.jns.2008.04.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2007] [Revised: 03/29/2008] [Accepted: 04/04/2008] [Indexed: 11/26/2022]
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De Reuck J, Sieben A, Van Maele G. Characteristics and outcomes of patients with seizures according to the time of onset in relation to stroke. Eur Neurol 2008; 59:225-8. [PMID: 18264010 DOI: 10.1159/000115635] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2006] [Accepted: 07/12/2006] [Indexed: 11/19/2022]
Abstract
BACKGROUND/AIM Although most late-onset seizures (LS) appear within 2 years after stroke, some of them occur later and their characteristics are unknown. The aim of this study was to compare the characteristics of patients with very-late-onset seizures (VLS) to those with early-onset seizures (ES) and those with LS. PATIENTS The study group consisted of 204 patients with stroke-related seizures (29 ES, 128 LS and 47 VLS). RESULTS Intracranial haemorrhage was a more frequent cause of ES than of LS and no cause at all of VLS. On the other hand, 25% of the VLS were related to lacunar strokes. Status epilepticus occurred in 20.7% of the ES, in 11.7% of the LS and in 2.1% of the VLS patients. Seizure recurrences were 13.8% in the ES, 54.7% in the LS and 34.0% in the VLS group. Neurological impairment, at stroke onset, and the degree of disability were more severe in patients with ES compared to those with LS and were very mild in the VLS group. The EEG findings as a whole did not show significant differences between the three groups, although a normal EEG was more frequent in the VLS group. CONCLUSION VLS occur in patients with minor ischaemic strokes with good recovery and benign disease course.
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Affiliation(s)
- J De Reuck
- Department of Neurology, University Hospital, Ghent, Belgium.
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31
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Sheorajpanday RVA, De Deyn PP. Epileptic fits and epilepsy in the elderly: general reflections, specific issues and therapeutic implications. Clin Neurol Neurosurg 2007; 109:727-43. [PMID: 17703874 DOI: 10.1016/j.clineuro.2007.07.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2007] [Revised: 06/12/2007] [Accepted: 07/07/2007] [Indexed: 01/11/2023]
Abstract
Seizures and epilepsy are commonly encountered in the elderly. Diagnosis is not always straightforward as reliable history is often difficult to obtain and EEG findings can be non-specific. When to treat and how may be difficult choices as adequate studies in elderly are rather scarce. Treatment should be based on careful assessment and comparison of risk/benefit profiles of various anti-epileptic drugs (AEDs) in this specific elderly population. Since most AEDs are effective in terms of seizure control in the elderly, the choice of treatment is often determined by tolerability, pharmacokinetic profile and drug interactions of AEDs. As recently introduced AEDs have a better safety profile compared to older agents it seems logical to initiate treatment in the frail elderly patient with those more modern AEDs. In this review some distinctive clinical features of epilepsy in the elderly are discussed in three sections (general issues, special issues and selected treatment options with special reference to medicinal treatment).
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De Reuck J, Nagy E, Van Maele G. Seizures and epilepsy in patients with lacunar strokes. J Neurol Sci 2007; 263:75-8. [PMID: 17610904 DOI: 10.1016/j.jns.2007.06.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2006] [Revised: 05/29/2007] [Accepted: 06/08/2007] [Indexed: 11/24/2022]
Abstract
BACKGROUND The relation between seizures and small subcortical infarcts is uncertain. The present retrospective study investigates whether differences are observed between patients with and without seizures following a lacunar stroke. PATIENTS AND METHODS Thirty-seven patients with seizures and a prior history of a lacunar stroke were admitted to the Ghent University Hospital during 2000 and 2005. They were compared to 205 patients, admitted between 2002 and 2004, with an acute lacunar stroke and without epileptic spells on follow-up. Nine out of the 37 patients with seizures and 48 out of the 205 without seizures had a history of recurrent strokes. RESULTS No differences in vascular risk factors, distribution and frequency of the lacunes, degree of severity of the white matter changes and outcome were observed. On the Mini-Mental State Examination moderate to severe cognitive disturbances were observed in the seizure group and in some patients of the non-seizure group. CONCLUSIONS In the present study we found no evidence that seizures are directly induced by lacunar infarcts. The seizures appear to be part of a more global ongoing cerebral disorder probably leading to cognitive impairment.
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Affiliation(s)
- J De Reuck
- Stroke Unit, Department of Neurology, University Hospital, De Pintelaan 185, B-9000 Ghent, Belgium.
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De Reuck J, Hemelsoet D, Van Maele G. Seizures and epilepsy in patients with a spontaneous intracerebral haematoma. Clin Neurol Neurosurg 2007; 109:501-4. [DOI: 10.1016/j.clineuro.2007.04.001] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2007] [Revised: 03/15/2007] [Accepted: 04/09/2007] [Indexed: 10/23/2022]
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