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Zhou X, Ding D, Wang W, Zhou D, Sander JW. Mortality of Epilepsy in Chinese Populations: A Comprehensive Review. Neuroepidemiology 2024:1-14. [PMID: 39074464 DOI: 10.1159/000540426] [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: 04/07/2024] [Accepted: 07/02/2024] [Indexed: 07/31/2024] Open
Abstract
BACKGROUND Premature mortality is a significant part of the epilepsy burden and may vary across populations, especially between high-income and lower- and middle-income countries. People with epilepsy in China are approximately a fifth of the global population with epilepsy. Previous studies were unlikely to represent the situation in China due to limitations in design, methods, sample size, follow-up time, and other inherent population heterogeneity. SUMMARY By summarising the evidence on the mortality characteristics in Chinese populations with epilepsy in the last 6 decades, we found a median mortality rate of 14.7 (6.8-74.4)/1,000 person-years and a median standardised mortality ratio (SMR) of 4.4 (2.6-12.9) in population-based studies, and a median mortality rate of 12.3 (9.5-101.5)/1,000 person-years and a median SMR of 3.0 (1.5-5.1) in hospital-based studies. Vascular diseases, complications of diabetes, and accidental injuries were the leading causes of death. Risk factors for mortality were reported as older age, male, longer duration, and higher frequency of seizures. Case fatality ratios of status epilepticus in adults were higher than in children, and both increased with follow-up time. Mortality in people with symptomatic epilepsy was high and varied across different primary diseases. KEY MESSAGES The highest mortality rate and sudden unexpected death in epilepsy (SUDEP) incidence were reported from the least developed areas in China. Accidental injuries were the most common causes of epilepsy-related deaths, while the incidence of SUDEP may be underestimated in Chinese populations. Further research is warranted to improve the understanding of premature mortality risk so that preventative measures can be introduced to improve the situation.
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Affiliation(s)
- Xiaowen Zhou
- Institute of Neurology, National Center for Neurological Disorders, National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, China,
| | - Ding Ding
- Institute of Neurology, National Center for Neurological Disorders, National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Wenzhi Wang
- Beijing Neurosurgical Institute, Beijing, China
| | - Dong Zhou
- Department of Neurology, West of China Hospital, Sichuan University, Chengdu, China
| | - Josemir W Sander
- Department of Neurology, West of China Hospital, Sichuan University, Chengdu, China
- UCL Queen Square Institute of Neurology, London, UK
- Chalfont Centre for Epilepsy, Chalfont St Peter, UK
- Stichting Epilepsie Instellingen Nederland (SEIN), Heemstede, The Netherlands
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Simma L, Romano F, Schmidt S, Ramantani G, Bölsterli BK. Integrating Neuromonitoring in Pediatric Emergency Medicine: Exploring Two Options for Point-of-Care Electroencephalogram (pocEEG) via Patient Monitors-A Technical Note. J Pers Med 2023; 13:1411. [PMID: 37763178 PMCID: PMC10532774 DOI: 10.3390/jpm13091411] [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: 06/24/2023] [Revised: 09/08/2023] [Accepted: 09/15/2023] [Indexed: 09/29/2023] Open
Abstract
Central nervous system (CNS) disorders are among the most frequent presentations in critically ill children. Status epilepticus (SE) is a frequent scenario in the resuscitation bay. In patients with altered mental status, non-convulsive SE (NCSE) is often underrecognized and critically impacts the neurological outcome and duration of hospitalization. An electroencephalogram (EEG) is required to diagnose NCSE. However, standard EEG recordings are time- and staff-intensive, and their availability is limited, especially outside regular working hours. We aimed to improve patient care by developing a simplified EEG recording method, using a reduced lead montage (point-of-care EEG-pocEEG), that is suitable for use in pediatric emergency departments. The objective was to devise a cost-effective unit with low space requirements that fitted the existing technical infrastructure. We present two technical options for clinical pocEEG acquisition using patient monitors (GE Carescape, Philips IntelliVue) that enable data collection for educational and research purposes. A simplified, rapid response EEG like the pocEEG enables neuromonitoring of patients with CNS disorders in pediatric emergency settings, facilitating timely diagnosis and treatment initiation when standard EEG is not readily available.
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Affiliation(s)
- Leopold Simma
- Emergency Department, University Children’s Hospital Zurich, University of Zurich, 8032 Zurich, Switzerland
- Children’s Research Center, University Children’s Hospital Zurich, University of Zurich, 8032 Zurich, Switzerland
| | - Fabrizio Romano
- Division of Pediatric Emergency Medicine, Department of Pediatrics, Inselspital, Bern University Hospital, University of Bern, 3010 Bern, Switzerland
| | - Steffen Schmidt
- Division of Pediatric Emergency Medicine, Department of Pediatrics, Inselspital, Bern University Hospital, University of Bern, 3010 Bern, Switzerland
| | - Georgia Ramantani
- Children’s Research Center, University Children’s Hospital Zurich, University of Zurich, 8032 Zurich, Switzerland
- Department of Neuropediatrics, University Children’s Hospital, University of Zurich, 8032 Zurich, Switzerland
| | - Bigna K. Bölsterli
- Children’s Research Center, University Children’s Hospital Zurich, University of Zurich, 8032 Zurich, Switzerland
- Child Development Center, University Children’s Hospital Zurich, University of Zurich, 8032 Zurich, Switzerland
- Department of Pediatric Neurology, Children’s Hospital of Eastern Switzerland, 9000 Sankt Gallen, Switzerland
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Pfeiffer CK, Mackay MT, Long E, Stephens D, Dalziel SR, Babl FE. Parenteral Long-Acting Antiseizure Medications Are Used More Often to Treat Seizure Clusters Than Convulsive Status Epilepticus in the Pediatric Emergency Department. J Child Neurol 2022; 37:589-598. [PMID: 35142572 DOI: 10.1177/08830738221077751] [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
Objective:Recent trials provide high-quality evidence for second-line treatment of convulsive status epilepticus (CSE) in children. However, the most effective medications for other seizure emergencies are poorly understood without established treatment algorithms. We investigated children presenting to the emergency department with repetitive or prolonged convulsions who required intravenous long-acting antiseizure medications, to determine the relative importance and treatment responsiveness of status epilepticus and seizure clusters. Methods: Retrospective observational study in the emergency department, Royal Children's Hospital, Melbourne, Australia (annual census 90 000) using hospital electronic medical records data of patients presenting with seizures in 2018. For patients receiving parenteral long-acting antiseizure medications, seizures were categorized as convulsive status epilepticus, nonconvulsive status epilepticus, and seizure clusters. Results: 1468 patients (2% of all visits) presented with seizures to the emergency department in 2018. Long-acting antiseizure medications were administered to 97 (7%) children for the emergency management of seizures. The majority presented with seizure clusters (n = 69; 71%). Only 11 (11%) were in convulsive status epilepticus and 17 (18%) in nonconvulsive status epilepticus. In convulsive status epilepticus, nonconvulsive status epilepticus, and seizure clusters, phenytoin was used in 27%, 53%, and 58% and levetiracetam in 73%, 47%, and 32%, respectively. Conclusions:Convulsive status epilepticus represents a small portion of patients requiring parenteral long-acting antiseizure medications. Seizure clusters accounted for >6 times the number of convulsive status epilepticus, yet evidence and treatment algorithms are lacking.
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Affiliation(s)
| | - Mark T Mackay
- 34361Murdoch Children's Research Institute, Parkville, Australia.,Department of Paediatrics, Faculty of Medicine, Dentistry, and Health Sciences, University of Melbourne, Melbourne, Victoria, Australia.,Department of Neurology, 6453The Royal Children's Hospital, Parkville, Victoria, Australia
| | - Elliot Long
- 34361Murdoch Children's Research Institute, Parkville, Australia.,Department of Paediatrics, Faculty of Medicine, Dentistry, and Health Sciences, University of Melbourne, Melbourne, Victoria, Australia.,Emergency Department, 6453The Royal Children's Hospital, Parkville, Victoria, Australia.,Paediatric Research in Emergency Departments International Collaborative (PREDICT), Parkville, Australia
| | - David Stephens
- Decision Support Unit, The Royal Children's Hospital, Parkville, Victoria, Australia
| | - Stuart R Dalziel
- Paediatric Research in Emergency Departments International Collaborative (PREDICT), Parkville, Australia.,Children's Emergency Department, Starship Children's Hospital, Auckland, New Zealand
| | - Franz E Babl
- 34361Murdoch Children's Research Institute, Parkville, Australia.,Department of Paediatrics, Faculty of Medicine, Dentistry, and Health Sciences, University of Melbourne, Melbourne, Victoria, Australia.,Emergency Department, 6453The Royal Children's Hospital, Parkville, Victoria, Australia.,Paediatric Research in Emergency Departments International Collaborative (PREDICT), Parkville, Australia
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Wu J, Lan X, Yan L, Hu Y, Hong S, Jiang L, Chen J. A retrospective study of 92 children with new-onset refractory status epilepticus. Epilepsy Behav 2021; 125:108413. [PMID: 34794014 DOI: 10.1016/j.yebeh.2021.108413] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 10/25/2021] [Accepted: 10/26/2021] [Indexed: 01/10/2023]
Abstract
Little is known of the etiology, course, and treatment of new-onset refractory status epilepticus (NORSE) in children. Here we identified etiologies, electroencephalography (EEG) characteristics, and neuroimaging findings among pediatric patients with NORSE and among two patient subgroups, febrile infection-related epilepsy syndrome (FIRES) group and non-FIRES group. We also examined treatments and risk factors related to poor prognosis. Ninety-two children with NORSE were identified in Children's Hospital of Chongqing Medical University between January 1, 2010 and September 1, 2020. The end date was chosen to guarantee at least a 6-month follow-up. Our results indicated that patients with FIRES account for 90% of pediatric patients with NORSE. The clinical, EEG, and neuroimaging results and prognosis were not significantly different between the FIRES group and non-FIRES group of individuals. 68.5% of our patients had unknown etiology, and viral etiology was the most common identified cause (26.1%). Electroencephalography might have a certain diagnostic value for NORSE. A gradual increase in seizure burden was obvious from the onset of disease, and continuous or recurrent ictal discharge lasting ≥ 30 min was quite common in our study. The mortality was 22.8% in our study. Among the 71 surviving patients, the outcome at discharge was poor but improved during follow-up, and 68.5% had good or fair outcomes at their last follow-up. A poor outcome was observed in 39 of 92 cases (42%), with 43.9% and 30% of individuals in the FIRES group and non-FIRES group, respectively, having a poor outcome. The presence of super refractory status epilepticus (SRSE), electrographic seizures and nonconvulsive status epilepticus (NCSE), and diffuse cortical edema and multifocal abnormality may be related to a poor prognosis. Our analysis did not indicate that prognosis was directly related to etiology or treatment. Management of NORSE is challenging, and the role of immunotherapy warrants further investigation.
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Affiliation(s)
- Jinfeng Wu
- Department of Neurology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, China
| | - Xinghui Lan
- Department of Neurology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, China
| | - Lisi Yan
- Department of Neurology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, China
| | - Yue Hu
- Department of Neurology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, China
| | - Siqi Hong
- Department of Neurology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, China
| | - Li Jiang
- Department of Neurology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, China
| | - Jin Chen
- Department of Neurology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, China.
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Hanin A, Demeret S, Nguyen-Michel VH, Lambrecq V, Navarro V. Continuous EEG monitoring in the follow-up of convulsive status epilepticus patients: A proposal and preliminary validation of an EEG-based seizure build-up score (EaSiBUSSEs). Neurophysiol Clin 2021; 51:101-110. [PMID: 33642131 DOI: 10.1016/j.neucli.2021.01.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 01/28/2021] [Accepted: 01/31/2021] [Indexed: 11/30/2022] Open
Abstract
Continuous electroencephalography (EEG) is a major tool for monitoring patients admitted to the intensive care unit after refractory convulsive status epilepticus, following control of convulsive movements. We review the values of different EEG patterns observed in critically ill patients for prognosis and seizure risk, together with proposed criteria for non-convulsive status epilepticus diagnosis (Salzburg Criteria), the EEG scores for prognosis (Epidemiology-based Mortality score in Status Epilepticus, EMSE) and for seizure risk (2HELPS2B). These criteria and scores, based partially on continuous EEG, are not tailored to repetitively monitor the progressive build-up leading to seizure or status epilepticus recurrence. Therefore, we propose a new EEG-based seizure build-up score in status epilepticus (EaSiBUSSEs), based on the morphology and the prevalence of the EEG patterns observed in the follow-up of convulsive status epilepticus patients. It displays subscores from the least (no interictal activity) to the most associated with seizures (focal or generalized status epilepticus). We then evaluated the performance of the EaSiBUSSEs in a cohort of eleven patients who were admitted to intensive care unit for convulsive status epilepticus and who underwent continuous EEG recording. The receiver operating curve revealed good accuracy in identifying patients who would have seizures in the next 24 h, with excellent intra- and inter-rater reliability. We believe that this score is simple to perform, and suitable for repeated monitoring of EEG following refractory convulsive status epilepticus, with quantitative description of major EEG changes leading to seizures.
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Affiliation(s)
- Aurélie Hanin
- Paris Brain Institute, ICM, Inserm U 1127, CNRS UMR 7225, Sorbonne Université, F-75013, Paris, France
| | - Sophie Demeret
- AP-HP, Epilepsy Unit and Clinical Neurophysiology Department (VHNM, VL, VN), Neuro-Intensive Care Unit (SD), Pitié-Salpêtrière Hospital, Paris, France
| | - Vi-Huong Nguyen-Michel
- AP-HP, Epilepsy Unit and Clinical Neurophysiology Department (VHNM, VL, VN), Neuro-Intensive Care Unit (SD), Pitié-Salpêtrière Hospital, Paris, France
| | - Virginie Lambrecq
- Paris Brain Institute, ICM, Inserm U 1127, CNRS UMR 7225, Sorbonne Université, F-75013, Paris, France; AP-HP, Epilepsy Unit and Clinical Neurophysiology Department (VHNM, VL, VN), Neuro-Intensive Care Unit (SD), Pitié-Salpêtrière Hospital, Paris, France; Sorbonne Université, Paris, France
| | - Vincent Navarro
- Paris Brain Institute, ICM, Inserm U 1127, CNRS UMR 7225, Sorbonne Université, F-75013, Paris, France; AP-HP, Epilepsy Unit and Clinical Neurophysiology Department (VHNM, VL, VN), Neuro-Intensive Care Unit (SD), Pitié-Salpêtrière Hospital, Paris, France; Sorbonne Université, Paris, France; Center of Reference for Rare Epilepsies, Pitié-Salpêtrière Hospital, Paris, France.
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Simma L, Bauder F, Schmitt-Mechelke T. Feasibility and usefulness of rapid 2-channel-EEG-monitoring (point-of-care EEG) for acute CNS disorders in the paediatric emergency department: an observational study. Emerg Med J 2020; 38:919-922. [PMID: 33127740 DOI: 10.1136/emermed-2020-209891] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 09/12/2020] [Accepted: 09/15/2020] [Indexed: 11/03/2022]
Abstract
INTRODUCTION The aim of this study was to determine the feasibility and clinical utility of point-of-care electroencephalogram (pocEEG) in the paediatric emergency department (ED) for children presenting with acute non-traumatic central nervous system (CNS) disorders. METHODS Retrospective observational study of prospectively collected data in paediatric patients (0-16 years) with acute non-traumatic CNS-disorders presenting between April 2014 and February 2017 to a single paediatric ED in Switzerland.The 2-channel EEG was applied to all patients presenting with acute seizures or impaired consciousness to the ED. For a pocEEG, scalp surface electrodes are applied in five locations, thus allowing registration of fronto-temporal bilateral cortical activity. Neurology consultants assisted with interpretation of readings. EEG findings and clinical characteristics were collected. Feasibility and usefulness were rated via Likert scale. RESULTS 36 patients with acute seizures or altered mental status were analysed. Age range was 9 months to 15 years, median age of 34 months. 21 of 36 (58%) patients arrived out of hours. Application of electrodes was rated as 'easy' in 28 (77.8%) patients and rated as 'difficult' in 8 (22.2%). The utility of the EEG was rated by physicians as 'very useful/diagnostic' in 13 cases (36%), 'useful' in 21 cases (58%), 'not useful' in two cases (8%). None were rated 'negative.' CONCLUSION Uptake of pocEEG introduction has been very encouraging. Provider ratings were overwhelmingly positive. Recognition of non-convulsive status epilepticus was improved and pocEEG facilitated more targeted interventions.
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Affiliation(s)
- Leopold Simma
- Emergency Department, Luzerner Kantonsspital Kinderspital Luzern, Luzern, Luzern, Switzerland
| | - Florian Bauder
- Department of Child Neurology, Luzerner Kantonsspital Kinderspital Luzern, Luzern, Luzern, Switzerland
| | - Thomas Schmitt-Mechelke
- Department of Child Neurology, Luzerner Kantonsspital Kinderspital Luzern, Luzern, Luzern, Switzerland
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Clinical characteristics and prognosis in a large paediatric cohort with status epilepticus. Seizure 2020; 80:5-11. [DOI: 10.1016/j.seizure.2020.04.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Revised: 04/02/2020] [Accepted: 04/04/2020] [Indexed: 01/27/2023] Open
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