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Kim JS, Woo H, Kim WS, Sung WY. Clinical Profile and Predictors of Recurrent Simple Febrile Seizure. Pediatr Neurol 2024; 156:4-9. [PMID: 38677048 DOI: 10.1016/j.pediatrneurol.2024.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 03/12/2024] [Accepted: 04/01/2024] [Indexed: 04/29/2024]
Abstract
BACKGROUND Recurrent simple febrile seizure (SFS) refers to febrile seizure (FS) that recurs within 24 hours. Patients with recurrent SFS often undergo unnecessary neurodiagnostic tests. To address this, we compared the clinical characteristics of recurrent SFS with those of SFS and investigated the risk factors associated with recurrent SFS. METHODS We retrospectively reviewed electronic medical records of patients aged six to 60 months who had been hospitalized for FS at two training hospitals between January 2016 and December 2019. The primary outcome was a comparison of the clinical features of patients with SFS and recurrent SFS. Additionally, the risk factors associated with seizure recurrence within 24 hours were evaluated. RESULTS Three quarters (n = 191, 75.2%) of the 254 enrolled patients experienced a single seizure episode during the febrile illness period. The remaining 63 patients (24.8%) were diagnosed with recurrent SFS. Significant differences between SFS and recurrent SFS were observed in the history of recurrent SFS, time from fever onset to seizure, and body temperature on hospital arrival. Multiple logistic regression analysis revealed that a history of previous recurrent SFS (odds ratio [OR] 10.161) and a body temperature below 39°C on arrival (OR 2.377) were significantly associated with early seizure recurrence. CONCLUSIONS This study highlights that early FS recurrence is common and has a self-limiting clinical course similar to that of SFS. We recommend close monitoring of the patient for six to eight hours when a history of early recurrence is present or if the seizure occurs at a low body temperature.
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Affiliation(s)
- Jon Soo Kim
- Department of Pediatrics, Chungbuk National University Hospital, Cheongju, Republic of Korea
| | - Hyewon Woo
- Department of Pediatrics, Chungbuk National University Hospital, Cheongju, Republic of Korea
| | - Won Seop Kim
- Department of Pediatrics, Chungbuk National University Hospital, Cheongju, Republic of Korea; Department of Pediatrics, Chungbuk National University College of Medicine, Cheongju, Republic of Korea
| | - Won Young Sung
- Department of Emergency Medicine, Daejeon Eulji Medical Center, Eulji University, Daejeon, Republic of Korea.
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Ferretti A, Riva A, Fabrizio A, Bruni O, Capovilla G, Foiadelli T, Orsini A, Raucci U, Romeo A, Striano P, Parisi P. Best practices for the management of febrile seizures in children. Ital J Pediatr 2024; 50:95. [PMID: 38735928 PMCID: PMC11089695 DOI: 10.1186/s13052-024-01666-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Accepted: 04/28/2024] [Indexed: 05/14/2024] Open
Abstract
Febrile seizures (FS) are commonly perceived by healthcare professionals as a self-limited condition with a generally 'benign' nature. Nonetheless, they frequently lead to pediatric consultations, and their management can vary depending on the clinical context. For parents and caregivers, witnessing a seizure can be a distressing experience, significantly impacting their quality of life. In this review, we offer an in-depth exploration of FS management, therapeutic interventions, and prognostic factors, with the aim of providing support for physicians and enhancing communication with families. We conducted a comprehensive literature search using the PubMed and Web of Science databases, spanning the past 50 years. The search terms utilized included "febrile seizure," "complex febrile seizure," "simple febrile seizure," in conjunction with "children" or "infant." Only studies published in English or those presenting evidence-based data were included in our assessment. Additionally, we conducted a cross-reference search to identify any additional relevant data sources. Our thorough literature search resulted in a compilation of references, with carefully selected papers thoughtfully integrated into this review.
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Affiliation(s)
- Alessandro Ferretti
- Pediatrics Unit, Neurosciences, Mental Health and Sensory Organ (NESMOS) Department, Faculty of Medicine and Psychology, S. Andrea Hospital, Sapienza University, via di Grottarossa 1035/1039, Rome, 00189, Italy.
| | - Antonella Riva
- IRCCS Giannina Gaslini, Genoa, Italy
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genoa, Genoa, Italy
| | - Alice Fabrizio
- Pediatrics Unit, Neurosciences, Mental Health and Sensory Organ (NESMOS) Department, Faculty of Medicine and Psychology, S. Andrea Hospital, Sapienza University, via di Grottarossa 1035/1039, Rome, 00189, Italy
| | - Oliviero Bruni
- Department of Social and Developmental Psychology, S. Andrea Hospital, Sapienza University, Rome, Italy
| | - Giuseppe Capovilla
- Child Neuropsychiatry Department, Epilepsy Center, Mantova, Italy
- C. Poma HospitalFondazione Poliambulanza, Brescia, Italy
| | - Thomas Foiadelli
- Pediatric Clinic, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Alessandro Orsini
- Pediatric Neurology, Pediatric University Department, Azienda Ospedaliera Universitaria Pisana, University of Pisa, Pisa, Italy
| | - Umberto Raucci
- General and Emergency Department, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Antonino Romeo
- Fatebenefratelli Hospital, ASST Fatebenefratelli-Sacco, Milan, Italy
| | - Pasquale Striano
- IRCCS Giannina Gaslini, Genoa, Italy
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genoa, Genoa, Italy
| | - Pasquale Parisi
- Pediatrics Unit, Neurosciences, Mental Health and Sensory Organ (NESMOS) Department, Faculty of Medicine and Psychology, S. Andrea Hospital, Sapienza University, via di Grottarossa 1035/1039, Rome, 00189, Italy
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3
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Kim Y, Jang Y, Shin YW, Jeon D, Yoo JS, Park DK, Lee HS, Ahn SJ, Park KI, Jung KH, Lee ST, Lee SK, Chu K. Gut microbiome diversity in a febrile seizure mouse model. ENCEPHALITIS 2024; 4:11-17. [PMID: 38195066 PMCID: PMC11007404 DOI: 10.47936/encephalitis.2023.00206] [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: 10/24/2023] [Revised: 12/12/2023] [Accepted: 12/12/2023] [Indexed: 01/11/2024] Open
Abstract
Purpose Febrile seizures at a young age can provoke late-onset temporal lobe epilepsy. Since recent evidence has suggested that the gut microbiome affects central nervous system pathology across the blood-brain barrier, we hypothesized that febrile seizures alter the composition of the gut microbiome to provoke epilepsy. Methods Third-generation C57BL/6 mice were separated into two groups (n = 5 each), and hot air was applied to only one group to cause febrile seizures. After two weeks of heat challenge, the fecal pellets acquired from each group were analyzed. Results The gut microbiota of fecal pellets from each group revealed five taxa at the genus level and eight taxa at the species level that were significantly different in proportion between the groups. Conclusion Although there was no significant difference in the overall diversity of the gut microbiota between the two groups, the identified heterogeneity may imply the pathognomonic causative relevance of febrile seizures and the development of epilepsy.
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Affiliation(s)
- Yongmoo Kim
- Laboratory for Neurotherapeutics, Department of Neurology, Comprehensive Epilepsy Center, Center for Medical Innovation, Biomedical Research Institute, Seoul National University College of Medicine and Hospital, Seoul, Korea
| | - Yoonhyuk Jang
- Laboratory for Neurotherapeutics, Department of Neurology, Comprehensive Epilepsy Center, Center for Medical Innovation, Biomedical Research Institute, Seoul National University College of Medicine and Hospital, Seoul, Korea
| | - Yong-Won Shin
- Laboratory for Neurotherapeutics, Department of Neurology, Comprehensive Epilepsy Center, Center for Medical Innovation, Biomedical Research Institute, Seoul National University College of Medicine and Hospital, Seoul, Korea
- Department of Neurosurgery, Seoul National University Hospital, Seoul, Korea
- Center for Hospital Medicine, Seoul National University Hospital, Seoul, Korea
| | | | - Jung-seok Yoo
- Laboratory for Neurotherapeutics, Department of Neurology, Comprehensive Epilepsy Center, Center for Medical Innovation, Biomedical Research Institute, Seoul National University College of Medicine and Hospital, Seoul, Korea
| | - Dong-Kyu Park
- Laboratory for Neurotherapeutics, Department of Neurology, Comprehensive Epilepsy Center, Center for Medical Innovation, Biomedical Research Institute, Seoul National University College of Medicine and Hospital, Seoul, Korea
| | - Han Sang Lee
- Laboratory for Neurotherapeutics, Department of Neurology, Comprehensive Epilepsy Center, Center for Medical Innovation, Biomedical Research Institute, Seoul National University College of Medicine and Hospital, Seoul, Korea
- Center for Hospital Medicine, Seoul National University Hospital, Seoul, Korea
| | - Seon-Jae Ahn
- Laboratory for Neurotherapeutics, Department of Neurology, Comprehensive Epilepsy Center, Center for Medical Innovation, Biomedical Research Institute, Seoul National University College of Medicine and Hospital, Seoul, Korea
- Center for Hospital Medicine, Seoul National University Hospital, Seoul, Korea
| | - Kyung-Il Park
- Laboratory for Neurotherapeutics, Department of Neurology, Comprehensive Epilepsy Center, Center for Medical Innovation, Biomedical Research Institute, Seoul National University College of Medicine and Hospital, Seoul, Korea
- Division of Neurology, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
| | - Keun-Hwa Jung
- Laboratory for Neurotherapeutics, Department of Neurology, Comprehensive Epilepsy Center, Center for Medical Innovation, Biomedical Research Institute, Seoul National University College of Medicine and Hospital, Seoul, Korea
| | - Soon-Tae Lee
- Laboratory for Neurotherapeutics, Department of Neurology, Comprehensive Epilepsy Center, Center for Medical Innovation, Biomedical Research Institute, Seoul National University College of Medicine and Hospital, Seoul, Korea
| | - Sang Kun Lee
- Laboratory for Neurotherapeutics, Department of Neurology, Comprehensive Epilepsy Center, Center for Medical Innovation, Biomedical Research Institute, Seoul National University College of Medicine and Hospital, Seoul, Korea
| | - Kon Chu
- Laboratory for Neurotherapeutics, Department of Neurology, Comprehensive Epilepsy Center, Center for Medical Innovation, Biomedical Research Institute, Seoul National University College of Medicine and Hospital, Seoul, Korea
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Shao L, Yu Y. Development of a prediction nomogram model of recurrent febrile seizures in pediatric children. Eur J Pediatr 2023; 182:4875-4888. [PMID: 37597045 DOI: 10.1007/s00431-023-05133-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 07/10/2023] [Accepted: 07/22/2023] [Indexed: 08/21/2023]
Abstract
The purpose of this study is to develop a prediction nomogram of recurrent febrile seizures in pediatric children based on the identified predictors for developing recurrent febrile seizures. This is a retrospective observational study. The medical records of 320 febrile seizure-afflicted children admitted to Zhoushan Women and Children Hospital from March 2019 to January 2023 were retrospectively reviewed. Children were divided into the recurrent febrile seizures group and the non-recurrent febrile seizures group. The predictors of recurrent febrile seizures were identified by univariate and multivariate analyses. A prediction nomogram model was developed via R software. The performance of the nomogram was internally validated to assess the model's discrimination and consistency, and decision curve analysis was employed to assess clinical utility. There were 41 out of 320 cases that had recurrent febrile seizures during the observation period, with a 12.81% prevalence rate of recurrent febrile seizures. The predictors of recurrent febrile seizures were young age at the first febrile seizures, a family history of febrile seizures in a first-degree relative, diurnal variation of initial febrile seizures occurrence, gender, and a low level of C-reactive protein. The area under the receiver operating characteristic curve of the nomogram is 0.795 (95% confidence interval: 0.720-0.871). Calibration plots and the result of the Hosmer-Lemeshow test (P = 0.472) reveal satisfactory consistency. Decision curve analysis showed a significant net benefit of the nomogram. CONCLUSIONS The prediction nomogram model demonstrates good performance and clinical utility, which would be a convenient tool for the detection of children in pediatrics with high-risk recurrent febrile seizures. It is useful for pediatric medical staff to provide early medical interventions and family counseling. WHAT IS KNOWN • A proportion of children experience recurrences of febrile seizures. • Recognition of risk factors for recurrent FS in pediatrics would be useful for the prediction of risk probabilities and help provide tailored counseling and follow-up. WHAT IS NEW • A nomogram model is developed for risk prediction of recurrent febrile seizures in this study, which would be a convenient risk prediction tool in pediatrics. • The predictor of diurnal variation of recurrent febrile seizures is with new ideas.
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Affiliation(s)
- Lingling Shao
- The Department of Pediatric Ward, Zhoushan Women and Children Hospital, No. 238 Renmin North Road, Dinghai District, Zhoushan, 316000, Zhejiang, China
| | - Youna Yu
- The Department of Pediatric Ward, Zhoushan Women and Children Hospital, No. 238 Renmin North Road, Dinghai District, Zhoushan, 316000, Zhejiang, China.
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Salleh H, Soon IS, Chong VH. Frequency and risk factors for febrile seizures during COVID-19 pandemic waves: an observational study. Eur J Pediatr 2023:10.1007/s00431-023-05021-0. [PMID: 37178360 PMCID: PMC10182340 DOI: 10.1007/s00431-023-05021-0] [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] [Received: 11/13/2022] [Revised: 05/04/2023] [Accepted: 05/05/2023] [Indexed: 05/15/2023]
Abstract
Febrile seizures (FS) are well-known manifestations of viral illnesses. The purpose of this study is to assess the prevalence and factors associated with FS among pediatric patients with COVID-19 admitted to the National Isolation Centre in Brunei Darussalam. All pediatric patients (< 12 years) during the first (n = 12), second (n = 418), and third (n = 219) waves were included in the study. In Brunei, the first, second, and third waves were caused by the original SARS-CoV-2, Delta, and Omicron variants, respectively. Data was extracted from a prospective database and the national electronic health record system. Patients with and without FS were compared to identify any significant risk factors. FS were only encountered in the third wave (n = 29, 13%) giving an overall prevalence of 4.5%; 24 (83%) occurring in the typical age group for FS (≥ 6 months to < 6 years). Five cases (17%) occurred in children 6 years and older. Comparing patients in the third wave, univariate analyses showed typical age group, previous history of FS, family history of FS, higher temperature (> 38.6 °C), and fewer symptoms on presentation (3 or less) were associated with FS. On multivariate analyses, typical age group, family history of FS, and fewer reported symptoms remained significant (all p < 0.05). Conclusions: The overall prevalence of FS in COVID-19 patients is comparable to rates reported. However, in Brunei Darussalam, FS only occurred in the third wave that has been associated with Omicron variant. Younger age group, family history of FS, and fewer symptoms on presentation are correlated with risk of FS. What is Known: • Viral infections are the most common cause of FS in children. •Young age and a personal and family history of FS are correlated with the risk of FS. What is New: • There were high rates of FS (13%) among pediatric patients admitted with COVID-19 due to the Omicron variant but not with the original and Delta variants. • FS with COVID-19 were correlated with reporting fewer symptoms on presentation.
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Affiliation(s)
- Hafizah Salleh
- Department of Paediatrics, RIPAS Hospital, Bandar Seri Begawan, BA1710, Brunei Darussalam.
| | - Ing Shian Soon
- Department of Paediatrics, RIPAS Hospital, Bandar Seri Begawan, BA1710, Brunei Darussalam
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Moriyama H, Nomura S, Imoto H, Oka F, Maruta Y, Mori N, Fujii N, Suzuki M, Ishihara H. Suppressive effects of a transient receptor potential melastatin 8 (TRPM8) agonist on hyperthermia-induced febrile seizures in infant mice. Front Pharmacol 2023; 14:1138673. [PMID: 36969879 PMCID: PMC10033885 DOI: 10.3389/fphar.2023.1138673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 02/24/2023] [Indexed: 03/11/2023] Open
Abstract
Background: Febrile seizures (FSs) are the most frequent type of seizures in infancy and childhood. Epileptiform discharges (EDs) on electroencephalogram at the time of first FS recurrence can increase the risk of epilepsy development. Therefore, inhibition of EDs is important. Recently, WS-3, a transient receptor potential melastatin 8 (TRPM8) agonist, reportedly suppressed penicillin G-induced cortical-focal EDs. However, the effects of TRPM8 agonists on FSs remain unknown. In this study, we aimed to clarify the effects of the TRPM8 agonist, and the absence of TRPM8 channels, on hyperthermia-induced FS by analyzing the fast ripple band.Methods: Hyperthermia (43°C for 30 min) induced by a heating pad caused FSs in postnatal day 7 wild-type (WT) and TRPM8 knockout (TRPM8KO) mice. FSs were defined as EDs occurring during behavioral seizures involving hindlimb clonus and loss of the righting reflex. Mice were injected with 1% dimethyl sulfoxide or 1 mM WS-3 20 min before the onset of hyperthermia, and electroencephalograms; movies; and rectal, brain and heating pad temperatures were recorded.Results: In wild-type mice, WS-3 reduced the fast ripple amplitude in the first FS without changing rectal and brain temperature thresholds. In contrast, the anti-FS effect induced by the TRPM8 agonist was not observed in TRPM8KO mice and, compared with wild-type mice, TRPM8 deficiency lowered the rectal and brain temperature thresholds for FSs, exacerbated the fast ripple amplitude, and prolonged the duration of the initial FS induced by hyperthermia.Conclusion: Our findings suggest that TRPM8 agonists can be used to treat hyperthermia-induced FSs.
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Affiliation(s)
- Hiroshi Moriyama
- Departments of Neurosurgery, Graduate School of Medicine, Yamaguchi University, Ube, Yamaguchi, Japan
- *Correspondence: Hiroshi Moriyama,
| | - Sadahiro Nomura
- Departments of Neurosurgery, Graduate School of Medicine, Yamaguchi University, Ube, Yamaguchi, Japan
- Epilepsy Center, Yamaguchi University Hospital, Ube, Yamaguchi, Japan
| | - Hirochika Imoto
- Departments of Neurosurgery, Graduate School of Medicine, Yamaguchi University, Ube, Yamaguchi, Japan
- Epilepsy Center, Yamaguchi University Hospital, Ube, Yamaguchi, Japan
| | - Fumiaki Oka
- Departments of Neurosurgery, Graduate School of Medicine, Yamaguchi University, Ube, Yamaguchi, Japan
| | - Yuichi Maruta
- Departments of Neurosurgery, Graduate School of Medicine, Yamaguchi University, Ube, Yamaguchi, Japan
| | - Naomasa Mori
- Departments of Neurosurgery, Graduate School of Medicine, Yamaguchi University, Ube, Yamaguchi, Japan
| | - Natsumi Fujii
- Departments of Neurosurgery, Graduate School of Medicine, Yamaguchi University, Ube, Yamaguchi, Japan
| | - Michiyasu Suzuki
- Departments of Neurosurgery, Graduate School of Medicine, Yamaguchi University, Ube, Yamaguchi, Japan
| | - Hideyuki Ishihara
- Departments of Neurosurgery, Graduate School of Medicine, Yamaguchi University, Ube, Yamaguchi, Japan
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Yeom JS, Kim YS, Choi DS. Focality in Febrile Seizures: A Retrospective Assessment Using Arterial Spin Labeling MRI. Neuropediatrics 2023; 54:197-205. [PMID: 36848944 DOI: 10.1055/s-0043-1761922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
PURPOSE Defining focality of febrile seizures (FS) in clinical practice remains controversial. We investigated focality issues in FS with a postictal arterial spin labeling (ASL) sequence. METHODS We retrospectively reviewed 77 children (median: 19.0 months, range: 15.0-33.0 months) who consecutively visited our emergency room for FS and underwent brain magnetic resonance imaging (MRI), including the ASL sequence, within 24 hours of seizure onset. ASL data were visually analyzed to assess perfusion changes. Factors related to the perfusion changes were investigated. RESULTS The mean time to ASL acquisition was 7.0 (interquartile range: 4.0-11.0) hours. The most common seizure classification was unknown-onset seizures (n = 37, 48%), followed by focal-onset (n = 26, 34%) and generalized-onset seizures (n = 14, 18%). Perfusion changes were observed in 43 (57%) patients: most were hypoperfusion (n = 35, 83%). The temporal regions were the most common location of perfusion changes (n = 26, 60%); the majority of these were distributed in the unilateral hemisphere. Perfusion changes were independently associated with seizure classification (focal-onset seizures, adjusted odds ratio [aOR]: 9.6, p = 0.01; unknown-onset seizures aOR: 10.4, p < 0.01), and prolonged seizures (aOR: 3.1, p = 0.04), but not with other factors (age, sex, time to MRI acquisition, previous FS, repeated FS within 24 hour, family history of FS, structural abnormality on MRI, and developmental delay). The focality scale of seizure semiology positively correlated with perfusion changes (R = 0.334, p < 0.01). CONCLUSION Focality in FS may be common, and its primary origin might be the temporal regions. ASL can be useful for assessing focality in FS, particularly when seizure onset is unknown.
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Affiliation(s)
- Jung Sook Yeom
- Department of Pediatrics, Gyeongsang National University of Hospital, Jinju, South Korea.,Gyeongsang National University College of Medicine, Institute of Health Science, Jinju, South Korea
| | - Young-Soo Kim
- Gyeongsang National University College of Medicine, Institute of Health Science, Jinju, South Korea.,Department of Neurology, Gyeongsang National University of Hospital, Jinju, South Korea
| | - Dae-Seob Choi
- Gyeongsang National University College of Medicine, Institute of Health Science, Jinju, South Korea.,Department of Radiology, Gyeongsang National University of Hospital, Jinju, South Korea
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Ulusoy E, Uysal Ateş Ş, Çitlenbik H, Öztürk A, Şık N, Arslan G, Yılmaz D, Yiş U, Hız S, Duman M. What is the safe observation period for seizure recurrence in pediatric emergency departments? Epilepsy Behav 2023; 139:109049. [PMID: 36603346 DOI: 10.1016/j.yebeh.2022.109049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 11/29/2022] [Accepted: 12/01/2022] [Indexed: 01/05/2023]
Abstract
BACKGROUND Afebrile seizures are the common causes of emergency department (ED) admissions in childhood, and there is limited data on the observation period in emergency service follow-up of these patients in terms of seizure recurrence in the literature. This study aims to determine the seizure recurrence time in afebrile seizures and the risk factors that determine it. METHODS Patients aged between 1 month and 18 years with afebrile seizures were included in the study. Seizure recurrence times, demographic data, diagnosis of epilepsy, use of antiseizure medications, Electroencephalography (EEG) and imaging results, structural abnormalities, hospitalizations, and treatments were recorded. RESULTS The median age of 623 patients included in the study was 42 months (16.0-94.0 months) and 59.9% were male. Epilepsy was diagnosed in 372 (59.7%) of the patients. Short-acting benzodiazepine was administered in 249 of the cases. The mean observation time of the patients was 36 hours (24-98 hours). Electroencephalography (EEG) was applied in 437 (70.1%) of the patients and abnormality was detected in 53.5%. Seizure recurrence was observed in 149 patients (23.9%). The median time of seizure recurrence was 1.0 hour (0.5-4.0 hours). Eighty-six percent of the seizure recurrences (n = 129) occurred within the first six hours and 95.3% (n = 142) within the first 12 hours. Risk factors included a history of febrile seizures (p = 0.001, OR = 2.7), not receiving short-acting benzodiazepine therapy (p = 0.026, OR 1.7), previous structural abnormalities (p = 0.018, OR 1.8), and cluster seizures (p = 0.001, OR 6.7) for all patients and also EEG abnormalities in pediatric ED for first seizure (p = 0.012, OR 2.4). CONCLUSION Patients with a history of febrile seizure, previous structural abnormalities, cluster seizures, EEG abnormalities in pediatric ED, and patients who didn't receive BZD treatment were at risk for seizure recurrence in the early period. Since most seizure recurrences occur within the first 6 hours, this period is the most critical time for recurrence risk.
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Affiliation(s)
- Emel Ulusoy
- Dokuz Eylul University, Faculty of Medicine, Department of Pediatrics, Division of Pediatric Emergency Care, Izmir, Turkey
| | - Şebnem Uysal Ateş
- Dokuz Eylul University, Faculty of Medicine, Department of Pediatrics, Izmir, Turkey
| | - Hale Çitlenbik
- Dokuz Eylul University, Faculty of Medicine, Department of Pediatrics, Division of Pediatric Emergency Care, Izmir, Turkey
| | - Ali Öztürk
- Dokuz Eylul University, Faculty of Medicine, Department of Pediatrics, Division of Pediatric Emergency Care, Izmir, Turkey
| | - Nihan Şık
- Dokuz Eylul University, Faculty of Medicine, Department of Pediatrics, Division of Pediatric Emergency Care, Izmir, Turkey
| | - Gazi Arslan
- Dokuz Eylul University, Faculty of Medicine, Department of Pediatrics, Division of Pediatric Intensive Care Unit, Izmir, Turkey
| | - Durgül Yılmaz
- Dokuz Eylul University, Faculty of Medicine, Department of Pediatrics, Division of Pediatric Emergency Care, Izmir, Turkey
| | - Uluç Yiş
- Dokuz Eylul University, Faculty of Medicine, Department of Pediatrics, Division of Pediatric Neurology, Izmir, Turkey
| | - Semra Hız
- Dokuz Eylul University, Faculty of Medicine, Department of Pediatrics, Division of Pediatric Neurology, Izmir, Turkey
| | - Murat Duman
- Dokuz Eylul University, Faculty of Medicine, Department of Pediatrics, Division of Pediatric Emergency Care, Izmir, Turkey.
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Eilbert W, Chan C. Febrile seizures: A review. J Am Coll Emerg Physicians Open 2022; 3:e12769. [PMID: 36016968 PMCID: PMC9396974 DOI: 10.1002/emp2.12769] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 05/25/2022] [Accepted: 05/31/2022] [Indexed: 01/23/2023] Open
Abstract
Febrile seizures are common, occurring in up to 5% of children in the United States. Frequently perceived by caregivers as a life‐threatening event, febrile seizures are a common cause of emergency department visits. The concern for permanent neurologic sequelae and future epilepsy after febrile seizures has resulted in a significant amount of research on these topics. The development of childhood vaccines over the past several decades has led to a significant reduction in childhood bacterial meningitis. This in turn has led to a dramatic change in the evaluation and treatment of febrile seizures. In this review, the different types of febrile seizures as well as the evaluation and prognosis of each are discussed.
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Affiliation(s)
- Wesley Eilbert
- Department of Emergency Medicine College of Medicine University of Illinois at Chicago Chicago Illinois USA
| | - Chuck Chan
- Department of Emergency Medicine College of Medicine University of Illinois at Chicago Chicago Illinois USA
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10
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Civan AB, Ekici A, Havali C, Kiliç N, Bostanci M. Evaluation of the risk factors for recurrence and the development of epilepsy in patients with febrile seizure. ARQUIVOS DE NEURO-PSIQUIATRIA 2022; 80:779-785. [PMID: 36252585 PMCID: PMC9703884 DOI: 10.1055/s-0042-1755202] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Abstract
Background Although febrile seizure (FS) is generally considered benign and self-limiting, there are differences regarding the risk factors, the prognosis, and the development of epilepsy.
Objective To examine the clinical and sociodemographic characteristics of patients diagnosed with FS, and to determine the risks of recurrence and the development of epilepsy.
Methods Between 2015 and 2019, we performed a retrospective evaluation of 300 patients with FS followed for at least 24 months.
Results The first episode of FS was simple in 72.7% of the patients and complex in 27.3%, and it recurred in 40%. Age under 12 months in the first FS, complex FS, and neurodevelopmental delay were found to statistically increase the risk of recurrence (p < 0.05). A total of 7% of the patients developed epilepsy, and this rate was found to be higher in patients with neurodevelopmental delay and long-term use of antiepileptic drugs (p < 0.001). The development of epilepsy was also observed in 77.8% of the patients with abnormal electroencephalogram (EEG). Epilepsy developed more frequently in those with abnormal EEG (p<0.001).
Conclusions Neurodevelopmental delay was an important risk factor for FS recurrence and the development of epilepsy. Abnormality in the EEG is an important risk factor for the development of epilepsy. We found that the long-term prophylactic treatment did not cause decreases in the recurrence of FS nor in the development of epilepsy.
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Affiliation(s)
- Ahmet Burak Civan
- University of Health Sciences, Bursa Yüksek İhtisas Training and Research Hospital, Department of Pediatrics, Bursa, Turkey
| | - Arzu Ekici
- University of Health Sciences, Bursa Yüksek İhtisas Training and Research Hospital, Department of Pediatric Neurology, Bursa, Turkey
| | - Cengiz Havali
- University of Health Sciences, Bursa Yüksek İhtisas Training and Research Hospital, Department of Pediatric Neurology, Bursa, Turkey
| | - Nevin Kiliç
- University of Health Sciences, Bursa Yüksek İhtisas Training and Research Hospital, Department of Pediatrics, Bursa, Turkey
| | - Muharrem Bostanci
- University of Health Sciences, Bursa Yüksek İhtisas Training and Research Hospital, Department of Pediatrics, Bursa, Turkey
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Guedj R, De Suremain N, Cavau A, Enault M, Carbajal R. Crises fébriles : mise au point pour le médecin aux urgences. ANNALES FRANCAISES DE MEDECINE D URGENCE 2022. [DOI: 10.3166/afmu-2022-0389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Les crises fébriles (CF), définies comme des crises d’épilepsie en contexte fébrile chez un enfant âgé entre six mois et cinq ans sans infection du système nerveux central affectent entre 2 et 5 % des enfants. Leur pronostic à long terme est excellent, n’exposant ni à un excès de mortalité ni à une diminution des compétences intellectuelles et comportementales. Poser le diagnostic de CF nécessite d’éliminer les autres causes de crises d’épilepsie en contexte fébrile, dont une méningite bactérienne et une méningoencéphalite herpétique. Cependant, le diagnostic de CF ne nécessite généralement aucun examen complémentaire sous réserve d’un interrogatoire et d’un examen clinique minutieux. L’indication des examens complémentaires pour identifier l’étiologie de la fièvre n’est pas modifiée par le fait que l’enfant ait présenté une CF. Bien qu’un tiers des enfants ayant eu une CF récidiveront au moins une fois avant l’âge de cinq ans, aucune mesure prophylactique (traitement antiépileptique, prise en charge agressive de la fièvre) n’est indiquée pour éviter ces récidives pour la quasi-totalité de ces enfants. Plusieurs facteurs de risque d’épilepsie sont à rechercher pour identifier les rares patients nécessitant un avis spécialisé sans urgence. Enfin, assister à un épisode de CF est une expérience très éprouvante pour les parents. Plusieurs messages clés doivent être délivrés aux parents avant le retour au domicile dans le but d’améliorer leur compréhension de l’épisode qui a eu lieu et de prévenir un syndrome posttraumatique ainsi que des modifications du comportement parental face à la fièvre.
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12
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Tarhani F, Nezami A, Heidari G, Dalvand N. Factors associated with febrile seizures among children. Ann Med Surg (Lond) 2022; 75:103360. [PMID: 35198190 PMCID: PMC8850670 DOI: 10.1016/j.amsu.2022.103360] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 02/06/2022] [Accepted: 02/10/2022] [Indexed: 01/16/2023] Open
Affiliation(s)
- Fariba Tarhani
- Department of Pediatric, Faculty of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Alireza Nezami
- Department of Pediatric, Faculty of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Ghobad Heidari
- Department of Pediatric, Faculty of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
- Corresponding author. Lorestan University of Medical Sciences, Khorramabad, Iran.
| | - Niloufar Dalvand
- Student of Research Committee, Lorestan University of Medical Sciences, Khorramabad, Iran
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Jongruk P, Wiwattanadittakul N, Katanyuwong K, Sanguansermsri C. Risk factors of epilepsy in children with complex febrile seizures: A retrospective cohort study. Pediatr Int 2022; 64:e14926. [PMID: 34273200 DOI: 10.1111/ped.14926] [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] [Received: 10/17/2020] [Revised: 06/07/2021] [Accepted: 07/08/2021] [Indexed: 01/06/2023]
Abstract
BACKGROUND Febrile seizures are the most common seizures in children. Children with complex febrile seizures have a higher risk of subsequent epilepsy compared with children with simple febrile seizures. Multiple risks factors for epilepsy, including focal status epilepticus, family history of epilepsy, neurodevelopmental abnormalities and abnormal electroencephalogram findings, have been found with inconsistent results. The aim of this study is to identify risk factors for developing epilepsy in children with complex febrile seizures. METHODS The study included 248 children aged 3-72-months, diagnosed with complex febrile seizures at Chiang Mai University Hospital. Demographic data, seizure characteristics, electroencephalogram and neuroimaging findings were identified, and assessed to establish whether they were risk factors for subsequent epilepsy. RESULTS Fifty-five patients (22.1%) had subsequent epilepsy. Using Cox regression-survival analysis, factors associated with epilepsy were prolonged seizures >15 min (P = 0.006; Hazard Ratio (HR): 2.475; 95% Confidence Interval (CI): 1.294-4.735), developmental delay (P = 0.019; HR: 4.476; 95% CI: 2.280-15.646), epileptiform discharges on electroencephalogram (P = 0.023; HR: 1.391; 95%CI: 1.174-1.876), and abnormal neuroimaging (computed tomography or magnetic resonance imaging; P = 0.028; HR: 1.355; 95% CI: 1.034-1.776). Age at onset, peak febrile temperature, duration between the onset of fever and the occurrence of seizure, recurrent seizures within 24 h, focal seizures, abnormal neurological exams and family history of febrile seizure or epilepsy were not associated with increased risk of subsequent epilepsy in this study. CONCLUSIONS Risk factors associated with increased risk of epilepsy in children with complex febrile seizures are prolonged seizures or febrile status epilepticus, developmental delay, electroencephalogram epileptiform discharges, and abnormal neuroimaging. Their presence would merit close clinical monitoring.
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Affiliation(s)
- Piyatida Jongruk
- Pediatric Department, Faculty of Medicine, Chiang Mai University Hospital, Chiang Mai University, Chiang Mai, Thailand
| | - Natrujee Wiwattanadittakul
- Neurology Division, Pediatric Department, Faculty of Medicine, Chiang Mai University Hospital, Chiang Mai University, Chiang Mai, Thailand
| | - Kamornwan Katanyuwong
- Neurology Division, Pediatric Department, Faculty of Medicine, Chiang Mai University Hospital, Chiang Mai University, Chiang Mai, Thailand
| | - Chinnuwat Sanguansermsri
- Neurology Division, Pediatric Department, Faculty of Medicine, Chiang Mai University Hospital, Chiang Mai University, Chiang Mai, Thailand
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14
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Consensus statements on the information to deliver after a febrile seizure. Eur J Pediatr 2021; 180:2993-2999. [PMID: 33866403 DOI: 10.1007/s00431-021-04067-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 03/31/2021] [Accepted: 04/04/2021] [Indexed: 10/21/2022]
Abstract
Febrile seizures (FS) are usually self-limiting and cause no morbidity. Nevertheless they represent very traumatic events for families. There is a need to identify key messages that reassure carers and help to prevent inappropriate, anxiety-driven behaviors associated with "fever phobia." No recommendations have been proposed to date regarding the content of such messages. Using a Delphi process, we have established a consensus regarding the information to be shared with families following a FS. Twenty physicians (child neurologists and pediatricians) from five European countries participated in a three-step Delphi process between May 2018 and October 2019. In the first step, each expert was asked to give 10 to 15 free statements about FS. In the second and third steps, statements were scored and selected according to the expert ranking of importance. A list of key messages for families has emerged from this process, which offer reassurance about FS based on epidemiology, underlying mechanisms, and the emergency management of FS should they recur. Interestingly, there was a high level of agreement between child neurologists and general pediatricians.Conclusion: We propose key messages to be communicated with families in the post-FS clinic setting. What is Known: • Febrile seizures (FS) are traumatic events for families. • No guidelines exist on what information to share with parents following a FS. What is New: • A Delphi process involving child neurologists and pediatricians provides consensual statement about information to deliver after a febrile seizure. • We propose key messages to be communicated with families in the post-FS clinic setting.
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Lin CH, Lin WD, Chou IC, Lee IC, Hong SY. Is Preterm Birth a Risk Factor for Subsequent Autism Spectrum Disorder and Attention Deficit Hyperactivity Disorder in Children with Febrile Seizure?-A Retrospective Study. Life (Basel) 2021; 11:life11080854. [PMID: 34440598 PMCID: PMC8398685 DOI: 10.3390/life11080854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 08/07/2021] [Accepted: 08/18/2021] [Indexed: 11/16/2022] Open
Abstract
Febrile seizure (FS) is the most prevalent childhood seizure; it is significantly related to subsequent epilepsy and has possible links to childhood neurodevelopmental disorders. Separately, premature births are believed to increase the risk of attention deficit hyperactivity disorder (ADHD) and autism spectrum disorder (ASD). Therefore, this study investigated whether preterm birth is a risk factor for subsequent epilepsy, ASD, and ADHD in children with FS. We retrospectively collected data for children aged < 5 years with FS from 1 January 2005, to 31 December 2013. We divided these children into two groups-the premature birth group and the full-term group-and compared their incidence rates of epilepsy, ASD and ADHD. The data of 426 patients with history of febrile convulsion were retrospectively collected. The premature birth group (FS+/preterm+) had 108 patients and the full-term group (FS+/preterm-) had 318 patients. The overall epilepsy risk in the FS+/preterm+ group was higher than in the FS+/preterm- group (odds ratio [OR], 2.52; 95% confidence interval [CI], 1.14-5.58; p = 0.02). The overall risk of ADHD in the FS+/preterm+ group was higher than that in the FS+/preterm- group (OR, 6.41; 95% CI, 3.39-12.09; p = 0.0001). In addition, children with FS+/preterm+ had 16.9 times (95% CI, 4.79-59.7; p = 0.0001) higher odds of having ASD compared with those with FS+/preterm-. Preterm birth may be a risk factor for subsequent epilepsy, ASD and ADHD in children with FS.
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Affiliation(s)
- Chien-Heng Lin
- Division of Pediatrics Pulmonology, China Medical University Children’s Hospital, Taichung 404327, Taiwan;
- Department of Biomedical Imaging and Radiological Science, College of Medicine, China Medical University, Taichung 404327, Taiwan
| | - Wei-De Lin
- Department of Medical Research, China Medical University Hospital, Taichung 404327, Taiwan;
| | - I-Ching Chou
- Division of Pediatrics Neurology, China Medical University Children’s Hospital, Taichung 404327, Taiwan;
| | - Inn-Chi Lee
- Department of Pediatrics, Chung Shan Medical University Hospital and Institute of Medicine, School of Medicine, Chung Shan Medical University, Taichung 402306, Taiwan;
| | - Syuan-Yu Hong
- Division of Pediatrics Neurology, China Medical University Children’s Hospital, Taichung 404327, Taiwan;
- Department of Medicine, School of Medicine, China Medical University, Taichung 404328, Taiwan
- Institute of Biomedicine, School of Medicine, China Medical University, Taichung 404328, Taiwan
- Correspondence:
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16
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Dilber B, Reis GP, Kolayli CC, Cansu A. The Role of Neutrophil-to-Lymphocyte Ratio, Red Blood Cell Distribution Width, and Mean Platelet Volume in Predicting Febrile Seizures and Differentiating Febrile Seizure Types. JOURNAL OF PEDIATRIC EPILEPSY 2021. [DOI: 10.1055/s-0041-1733904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
AbstractThe neutrophil-to-lymphocyte ratio (NLR), red blood cell distribution width (RDW), platelet count (PLT), and mean platelet volume (MPV)/platelet ratio (MPR) are commonly known inflammatory markers measured by a routine peripheral blood test that have been studied in patients with febrile seizures (FS) and may be useful for the classification of FS types. The aim of this study was to investigate the relationship between FS and inflammatory markers including MPR, RDW, and NLR and also to determine the diagnostic ability of these parameters to identify FS by comparing patients with and without FS, and by comparing patients with FS to their FS types (simple febrile seizure or complex febrile seizure [SFS or CFS]). The study included a total of 537 children aged 6 to 60 months who presented to the emergency service with FS. The FS group was divided into two subgroups based on the type of seizure, SFS, and CFS. MPR, NLR, and RDW predicted a 1.7 (odds ratio [OR], 95% confidence interval [CI]: 1.19–2.45), 1.94 (OR, 95% CI: 1.35–2.79), and 1.8 (OR, 95% CI: 1.25–2.59) times higher risk of FS, respectively. NLR and RDW predicted a 2.64 (OR, 95% CI: 1.17–4.85) and 2.34 (OR, 95% CI: 1.14–4.44) times higher risk of recurrent SFS, respectively. In patients with CFS, NLR ≥ 1.806 had a 3.64 times (OR, 95% CI: 1.83–7.21) and RDW ≥14.55 had a 3.34 times (OR, 95% CI: 1.67–6.65) higher risk of recurrent FS. The results indicated that MPV, NLR, and RDW differentiated not only SFS from CFS but also FS from fever without seizure. The increase in RDW and NLR values and their diagnostic values in patients with recurrent FS and the diagnostic value of these parameters in predicting CFS suggest that NLR and RDW could be effective, practical, and discriminative predictors of FS.
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Affiliation(s)
- Beril Dilber
- Department of Pediatric Neurology, Karadeniz Technical University, Trabzon, Turkey
| | - Gökçe P. Reis
- Department of Pediatric Hematology-Oncology, Karadeniz Technical University, Trabzon, Turkey
| | | | - Ali Cansu
- Department of Pediatric Neurology, Karadeniz Technical University, Trabzon, Turkey
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Abstract
Introduction Febrile seizure (FS) is the most common cause of convulsion in children. In the present study, we evaluated patients presenting with FS. Methods Eighty-two patients aged between 6-60 months who presented to Mersin City Training and Research Hospital with the first febrile seizure between January 2020 and May 2021 were included in the study. Results Of the 82 patients included in our study, 42 (51,2%) were male and 40 were female (48,8%). Their average age at presentation of first febrile seizure was 21,05 ± 16,22 months. Fever focus was found in 32 patients (39,1%) with upper respiratory tract infection. Epileptic abnormality was observed in the EEG of six patients (7,3%) and antiepileptic medication was started in three of these patients. Conclusions Upper respiratory tract infection, family history of FS, and family history of epilepsy are the main risk factors for the development of FS. Complex FS is a serious risk factor for the development of epilepsy.
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Affiliation(s)
- Mahmut Aslan
- Pediatric Neurology, Mersin City Hospital, Mersin, TUR
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18
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Li B, Wu Y, He Q, Zhou H, Cai J. The effect of complicated febrile convulsion on hippocampal function and its antiepileptic treatment significance. Transl Pediatr 2021; 10:394-405. [PMID: 33708526 PMCID: PMC7944171 DOI: 10.21037/tp-20-458] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND This study aimed to explore the effects of complex febrile seizures on hippocampal function and the significance of antiepileptic therapy. METHODS A total of 150 children with complex febrile seizures admitted to our hospital from July 2017 to July 2020 were included in the study. The VPA group was given sodium valproate treatment; the LEV group was given levetiracetam treatment; and the observation group was given basic treatment. The efficacy of the patients was evaluated after medication. A complex febrile seizure young mouse model was constructed, and the hippocampal cell morphology and BCL-2 expression of the mice pups were analyzed. A Morris water maze was used to detect the changes in cognitive function of the young mice with complex febrile seizures. RESULTS After treatment, the recurrence-free rate of the VPA group was significantly higher than that of the observation group (P=0.0045). After 1 month and 6 months, the improvement rate of EEG in VPA group was significantly higher than that in observation group (P<0.05). After treatment, the levels of BCL-2 in the VPA group and the LEV group decreased and were significantly lower than the observation group during the same period (P<0.05), and the M/C of the two groups was significantly higher than the observation group (P<0.05). The neuronal cells in the hippocampus of the young rats in the VPA group and the LEV group were regular, the matrix was more uniform, and nuclear pyknotic cells were occasionally seen. The pathological changes were less obvious than the model group, followed by the degree of pathological changes (0.92±1.31, 0.94±1.24). The incubation period of pups in the model group was significantly higher than that of the normal group, VPA group, and LEV group (P<0.05), and the number of crossing the station area was significantly less than that of the normal group, VPA group, and LEV group (P<0.05). CONCLUSIONS Antiepileptic drugs are effective in preventing the recurrence of complicated febrile seizures (CFS), and the main mechanism may be related to the targeted regulation of BCL-2 on the apoptosis of the hippocampus in the nervous system.
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Affiliation(s)
- Bin Li
- Department of Pediatrics, Affiliated Hospital of Nantong University, Nantong, China
| | - Youjia Wu
- Department of Pediatrics, Affiliated Hospital of Nantong University, Nantong, China
| | - Qingjuan He
- Department of Pediatrics, Affiliated Hospital of Nantong University, Nantong, China
| | - Hui Zhou
- Department of Pediatrics, Affiliated Hospital of Nantong University, Nantong, China
| | - Jin Cai
- Department of Pediatrics, Affiliated Hospital of Nantong University, Nantong, China
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19
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Freedman DA, Vidaurre J. Long-term Risks of Recurrent Febrile Seizures. Pediatr Neurol Briefs 2020; 34:22. [PMID: 33354104 PMCID: PMC7747551 DOI: 10.15844/pedneurbriefs-34-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Investigators from Denmark at Aarhus University studied the long-term risk of epilepsy, psychiatric disorders, and mortality among children with recurrent febrile seizures.
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Affiliation(s)
- Daniel A Freedman
- Department of Pediatrics and Neurology, Nationwide Children's Hospital, OH
| | - Jorge Vidaurre
- Department of Pediatrics and Neurology, Nationwide Children's Hospital, OH
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20
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Ogino M, Kashiwagi M, Tanabe T, Oba C, Nomura S, Shimakawa S, Kidokoro H, Natsume J, Okumura A, Tamai H, Ashida A. Clinical findings in patients with febrile seizure after 5 years of age: A retrospective study. Brain Dev 2020; 42:449-456. [PMID: 32201092 DOI: 10.1016/j.braindev.2020.02.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 02/04/2020] [Accepted: 02/28/2020] [Indexed: 11/25/2022]
Abstract
OBJECTIVE Febrile seizures (FSs) typically occur in infants and children between 6 and 60 months of age. Rarely, FS can occur in late childhood (late FS [LFS]; >5 years of age); however, the clinical features of LFS remain unclear. We aimed to clarify the clinical features of LFS. METHODS We retrospectively analyzed data from patients with LFS who visited Hirakata City Hospital between January 2004 and December 2014. We defined LFS as a seizure accompanied by fever (temperature ≥38 °C) occurring after 5 years of age, without a central nervous system infection. RESULTS A total of 505 patients (349 boys, 156 girls: 5-14 years old) were included. A history of FS before 60 months of age was observed in 319 of 460 patients (69.3%) with sufficient information about previous FS history among the 505 patients enrolled. LFS was more likely to occur in males (69.1%). Seizure duration was ≤15 min in 87.4% of cases. A family history of FS in first-degree relatives was observed in 103/327 cases (31.5%). Among LFS cases, 45% occurred at 5 years of age, and 92.1% experienced only one seizure after 5 years of age. The number of seizure episodes gradually lessened with age, decreasing drastically to 5.6% of cases older than 9 years. CONCLUSIONS Our findings suggest that sex differences, seizure duration, and family history were similar for LFS and FS. Over 90% patients with LFS experienced no recurrence after 5 years of age. Further study is needed to verify the recurrence rate of LFS.
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Affiliation(s)
- Motoko Ogino
- Department of Pediatrics, Hirakata City Hospital, Osaka, Japan; Department of Pediatrics, Osaka Medical College, Osaka, Japan
| | | | - Takuya Tanabe
- Department of Child Neurology, Tanabe Children's Clinic, Osaka, Japan
| | - Chizu Oba
- Department of Pediatrics, Hirakata City Hospital, Osaka, Japan
| | - Shohei Nomura
- Department of Pediatrics, Hirakata City Hospital, Osaka, Japan
| | | | - Hiroyuki Kidokoro
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Jun Natsume
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Akihisa Okumura
- Department of Pediatrics, Aichi Medical University, Aichi, Japan
| | - Hiroshi Tamai
- Department of Pediatrics, Osaka Medical College, Osaka, Japan
| | - Akira Ashida
- Department of Pediatrics, Osaka Medical College, Osaka, Japan
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21
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Adachi S, Inoue M, Kawakami I, Koga H. Short-term neurodevelopmental outcomes of focal febrile seizures. Brain Dev 2020; 42:342-347. [PMID: 32019687 DOI: 10.1016/j.braindev.2020.01.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 12/06/2019] [Accepted: 01/14/2020] [Indexed: 10/25/2022]
Abstract
OBJECTIVE The effect of complex febrile seizures (FS), specifically focal FS, on long-term neurodevelopmental outcome is not well known. The aim of this study was to assess the association between complex FS and neurodevelopmental outcome. METHODS A single-center, retrospective, cohort study was performed. The study included 282 children aged 6-60 months who experienced FS. Of these, 61 (22%) experienced recurrent FS, 33 (12%) prolonged FS, and 17 (6%) focal FS. The effect of these complex FS on subsequent need for special neurodevelopmental support was investigated. The neurodevelopmental status after FS was evaluated by a questionnaire. RESULTS During a median follow-up period of 3 years post FS, 12 children (4.3%) required special neurodevelopmental support. Univariate analysis demonstrated a significant association between focal FS and the need for subsequent special neurodevelopmental support, as well as a correlation between prolonged FS and pre-existing neurodevelopmental abnormality. Multiple logistic regression analysis demonstrated that focal FS (odds ratio [OR]: 12.27; 95% confidence interval [CI]: 2.11-71.22) and pre-existing neurodevelopmental abnormality (OR: 262; 95% CI: 17-3944) were significantly associated with the need for subsequent special support. CONCLUSION An association was found between focal FS and subsequent neurodevelopmental impairment; therefore, close follow-up with particular attention to neurodevelopmental status is required for children who experience focal FS.
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Affiliation(s)
- Shunichi Adachi
- Department of Pediatrics, National Hospital Organization Beppu Medical Center, 1473 Oaza-Uchikamado, Beppu, Oita 874-0011, Japan
| | - Masataka Inoue
- Department of Pediatrics, National Hospital Organization Beppu Medical Center, 1473 Oaza-Uchikamado, Beppu, Oita 874-0011, Japan
| | - Isao Kawakami
- Department of Pediatrics, National Hospital Organization Beppu Medical Center, 1473 Oaza-Uchikamado, Beppu, Oita 874-0011, Japan
| | - Hiroshi Koga
- Department of Pediatrics, National Hospital Organization Beppu Medical Center, 1473 Oaza-Uchikamado, Beppu, Oita 874-0011, Japan.
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22
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Dreier JW, Li J, Sun Y, Christensen J. Evaluation of Long-term Risk of Epilepsy, Psychiatric Disorders, and Mortality Among Children With Recurrent Febrile Seizures: A National Cohort Study in Denmark. JAMA Pediatr 2019; 173:1164-1170. [PMID: 31589251 PMCID: PMC6784760 DOI: 10.1001/jamapediatrics.2019.3343] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
IMPORTANCE Febrile seizures occur in 2% to 5% of children between the ages of 3 months and 5 years. Many affected children experience recurrent febrile seizures. However, little is known about the association between recurrent febrile seizures and subsequent prognosis. OBJECTIVE To estimate the risk of recurrent febrile seizures and whether there is an association over long-term follow-up between recurrent febrile seizures and epilepsy, psychiatric disorders, and death in a large, nationwide, population-based cohort in Denmark. DESIGN, SETTING, AND PARTICIPANTS This population-based cohort study evaluated data from all singleton children born in Denmark between January 1, 1977, and December 31, 2011, who were identified through the Danish Civil Registration System. Children born in Denmark who were alive and residing in Denmark at age 3 months were included (N = 2 103 232). The study was conducted from September 1, 2017, to June 1, 2019. EXPOSURES Hospital contacts with children who developed febrile seizures between age 3 months and 5 years. MAIN OUTCOMES AND MEASURES Children diagnosed with epilepsy were identified in the Danish National Patient Register and children diagnosed with psychiatric disorders were identified in the Psychiatric Central Research Register. Competing risk regression and Cox proportional hazards regression were used to estimate the cumulative and relative risk of febrile seizures, recurrent febrile seizures, epilepsy, psychiatric disorders, and death. RESULTS Of the 2 103 232 children (1 024 049 [48.7%] girls) in the study population, a total of 75 593 children (3.6%) were diagnosed with a first febrile seizure between 1977 and 2016. Febrile seizures were more common in boys (3.9%; 95% CI, 3.9%-4.0%) than in girls (3.3%; 95% CI, 3.2%-3.3%), corresponding to a 21% relative risk difference (hazard ratio, 1.21; 95% CI, 1.19-1.22). However, the risks of recurrent febrile seizures, epilepsy, psychiatric disorders, and death were similar in boys and girls. The risk of (recurrent) febrile seizures increased with the number of febrile seizures: 3.6% at birth, 22.7% (95% CI, 22.4%-23.0%) after the first febrile seizure, 35.6% (95% CI, (34.9%-36.3%) after the second febrile seizure, and 43.5% (95% CI, (42.3%-44.7%) after the third febrile seizure. The risk of epilepsy increased progressively with the number of hospital admissions with febrile seizures. The 30-year cumulative risk of epilepsy was 2.2% (95% CI, (2.1%-2.2%) at birth compared with 15.8% (95% CI, 14.6%-16.9%) after the third febrile seizure, while the corresponding estimates for risk of psychiatric disorders were 17.2% (95% CI, 17.2%-17.3%) at birth and 29.1% (95% CI, 27.2%-31.0%) after the third febrile seizure. Mortality was increased among children with recurrent febrile seizures (1.0%; 95% CI, 0.9%-1.0% at birth vs 1.9%; 95% CI, 1.4%-2.7% after the third febrile seizure), although this risk was associated primarily with children who later developed epilepsy. CONCLUSIONS AND RELEVANCE A history of recurrent febrile seizures appears to be associated with a risk of epilepsy and psychiatric disorders, but increased mortality was found only in individuals who later developed epilepsy.
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Affiliation(s)
- Julie Werenberg Dreier
- National Centre for Register-Based Research, Department of Economics and Business Economics, Aarhus University, Aarhus, Denmark,Centre for Integrated Register-Based Research, Centre for Integrated Register-Based Research, Aarhus University, Aarhus University, Aarhus, Denmark
| | - Jiong Li
- Department of Clinical Epidemiology, Aarhus University, Aarhus, Denmark
| | - Yuelian Sun
- National Centre for Register-Based Research, Department of Economics and Business Economics, Aarhus University, Aarhus, Denmark,Department of Neurology, Aarhus University Hospital, Aarhus, Denmark
| | - Jakob Christensen
- National Centre for Register-Based Research, Department of Economics and Business Economics, Aarhus University, Aarhus, Denmark,Department of Neurology, Aarhus University Hospital, Aarhus, Denmark
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Barghout MS, Al-Shahawy AK, El Amrousy DM, Darwish AH. Comparison Between Efficacy of Melatonin and Diazepam for Prevention of Recurrent Simple Febrile Seizures: A Randomized Clinical Trial. Pediatr Neurol 2019; 101:33-38. [PMID: 31521449 DOI: 10.1016/j.pediatrneurol.2019.01.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 01/06/2019] [Accepted: 01/11/2019] [Indexed: 02/08/2023]
Abstract
OBJECTIVES We evaluated the efficacy and safety of oral melatonin compared with oral diazepam for prevention of recurrent simple febrile seizures. METHODS This prospective randomized clinical trial included 60 children aged six to 50 months with recurrent simple febrile seizures who attended the pediatric neurology clinic in Tanta University Hospital. Children were randomly allocated into two groups: the first group (30 children) received oral melatonin 0.3 mg/kg/8 hours, whereas the other group (30 children) received oral diazepam 1 mg/kg/day divided into three doses. Both melatonin and diazepam were given only during the febrile illness, started at the onset of the fever for 48 to 72 hours. Patients were followed up for six months. The primary outcome was recurrence of febrile seizures and the secondary outcome was occurrence of adverse effect related to melatonin or diazepam. RESULTS The recurrence rate of febrile seizures was 17% (5/30) in the melatonin group and 37% (11/30) in the diazepam group. There was no significant difference between the two groups (P = 0.08) (95% confidence interval -0.025 to 0.42). Both melatonin and diazepam have significantly reduced recurrence of febrile seizures (P < 0.001). Adverse effects were reported in 13.3% and 23.3% of the children taking melatonin and diazepam, respectively. No serious side effects were reported with melatonin use. Sedation and dizziness were the main side effects reported in children receiving oral diazepam. CONCLUSIONS Our data suggest that melatonin, administered at the onset of a febrile illness, may effectively reduce the likelihood of recurrent simple febrile seizures. No serious side effects were encountered.
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Affiliation(s)
- Mohammad Sami Barghout
- Faculty of Medicine, Department of Pediatrics, Tanta University Hospital, Tanta University, Tanta, Egypt
| | - Azza Kamal Al-Shahawy
- Faculty of Medicine, Department of Pediatrics, Pediatric Neurology Unit, Tanta University Hospital, Tanta University, Tanta, Egypt
| | - Doaa Mohamed El Amrousy
- Faculty of Medicine, Department of Pediatrics, Pediatric Cardiology Unit, Tanta University Hospital, Tanta University, Tanta, Egypt
| | - Amira Hamed Darwish
- Faculty of Medicine, Department of Pediatrics, Pediatric Neurology Unit, Tanta University Hospital, Tanta University, Tanta, Egypt.
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Yokoi S, Kidokoro H, Yamamoto H, Ohno A, Nakata T, Kubota T, Tsuji T, Morishita M, Kawabe T, Naiki M, Maruyama K, Itomi K, Kato T, Ito K, Natsume J. Hippocampal diffusion abnormality after febrile status epilepticus is related to subsequent epilepsy. Epilepsia 2019; 60:1306-1316. [DOI: 10.1111/epi.16059] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Revised: 05/12/2019] [Accepted: 05/13/2019] [Indexed: 12/18/2022]
Affiliation(s)
- Setsuri Yokoi
- Department of Pediatrics Nagoya University Graduate School of Medicine Nagoya Japan
| | - Hiroyuki Kidokoro
- Department of Pediatrics Nagoya University Graduate School of Medicine Nagoya Japan
- Brain and Mind Research Center Nagoya University Nagoya Japan
| | - Hiroyuki Yamamoto
- Department of Pediatrics Nagoya University Graduate School of Medicine Nagoya Japan
| | - Atsuko Ohno
- Department of Pediatrics Nagoya University Graduate School of Medicine Nagoya Japan
| | - Tomohiko Nakata
- Department of Pediatrics Nagoya University Graduate School of Medicine Nagoya Japan
| | - Tetsuo Kubota
- Department of Pediatrics Anjo Kosei Hospital Anjo Japan
| | - Takeshi Tsuji
- Department of Pediatrics Okazaki City Hospital Okazaki Japan
| | | | - Takashi Kawabe
- Department of Pediatrics Kasugai Municipal Hospital Kasugai Japan
| | - Misako Naiki
- Department of Pediatrics Kasugai Municipal Hospital Kasugai Japan
| | - Koichi Maruyama
- Department of Pediatric Neurology Aichi Prefectural Colony Central Hospital Kasugai Japan
| | - Kazuya Itomi
- Department of Neurology Aichi Children's Health and Medical Center Obu Japan
| | - Toru Kato
- Department of Pediatrics Okazaki City Hospital Okazaki Japan
| | - Komei Ito
- Department of Allergology Aichi Children's Health and Medical Center Obu Japan
| | - Jun Natsume
- Department of Pediatrics Nagoya University Graduate School of Medicine Nagoya Japan
- Brain and Mind Research Center Nagoya University Nagoya Japan
- Department of Pediatrics Japanese Red Cross Nagoya First Hospital Nagoya Japan
- Department of Developmental Disability Medicine Nagoya University Graduate School of Medicine Nagoya Japan
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25
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Chwiej JG, Ciesielka SW, Skoczen AK, Janeczko KJ, Sandt C, Planeta KL, Setkowicz ZK. Biochemical Changes Indicate Developmental Stage in the Hippocampal Formation. ACS Chem Neurosci 2019; 10:628-635. [PMID: 30375847 DOI: 10.1021/acschemneuro.8b00471] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
The literature showing how age of humans or animals influences the IR absorption spectra recorded in different brain regions is very poor. A very limited number of studies used FTIR microspectroscopy for analysis of the aging process, however there is lack of data concerning the biomolecular changes occurring in the course of postnatal development of the central nervous system. Therefore, in this paper the topographic and semiquantitative biochemical changes occurring within the rat hippocampus during postnatal development were examined. To achieve the goal of the study, three groups of normal male rats differing in age were investigated. These were 6, 30, and 60 day old animals, and the chosen ages correspond to the neonatal period, childhood, and early adulthood in humans, respectively. Already, preliminary topographic analysis identified a number of significant changes in the accumulation of biomolecules within the hippocampal formation occurring during brain development. Such observation was confirmed by further semiquantitative analysis of intensities of selected absorption bands or ratios of their intensities. The detailed examinations were done for four hippocampal cellular layers (multiform, molecular, pyramidal, and granular layers), and the results showed that the accumulation of most biomolecules, including both saturated and unsaturated lipids as well as compounds containing phosphate and carbonyl groups, was significantly higher in adulthood comparing to the neonatal period. What is more, the increases in their levels were observed mostly between 6th and 30th days of animals' life. The unsaturation level of lipids did not change during postnatal development, although the differences in unsaturated and saturated lipids contents were noticed between examined animal groups. Significant differences in relative secondary structure of proteins were found between young adult rats and animals in neonatal period for which the relative level of proteins with β-type secondary structure was the highest.
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Affiliation(s)
- Joanna G. Chwiej
- AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow 30-059, Poland
| | - Stanislaw W. Ciesielka
- AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow 30-059, Poland
| | - Agnieszka K. Skoczen
- AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow 30-059, Poland
| | - Krzysztof J. Janeczko
- Jagiellonian University, Institute of Zoology and Biomedical Research, Krakow 30-387, Poland
| | | | - Karolina L. Planeta
- AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow 30-059, Poland
| | - Zuzanna K. Setkowicz
- Jagiellonian University, Institute of Zoology and Biomedical Research, Krakow 30-387, Poland
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26
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Tsai JD, Mou CH, Chang HY, Li TC, Tsai HJ, Wei CC. Trend of subsequent epilepsy in children with recurrent febrile seizures: A retrospective matched cohort study. Seizure 2018; 61:164-169. [PMID: 30172997 DOI: 10.1016/j.seizure.2018.08.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 08/22/2018] [Accepted: 08/25/2018] [Indexed: 11/19/2022] Open
Abstract
PURPOSE Trends of epilepsy in children were correlated with febrile seizure (FS) in a previous retrospective study. In the present study, the authors obtained relevant data from a nationwide cohort database to investigate trends in subsequent epilepsy in children with a history of recurrent FS. METHODS A total of 10,210 children with FS comprised the cohort. The diagnosis date was used as the index date. A comparison cohort was randomly matched with each case based on age, sex, urbanization level, parents' occupation, and index date. Cox proportional hazard regression was performed to estimate the hazard ratio and confidence interval of FS-associated epilepsy. RESULTS This retrospective cohort study included 7729 children with FS and a comparison cohort of 30,916 children. The incidence of epilepsy was 11.4-fold higher in the FS cohort than in the comparison cohort (5.67 vs. 0.49 per 1000 person-years, respectively). Compared with the comparison cohort, the epilepsy incidence rate ratio increased in children with admissions for FS, from 8.62 at 1 admission to 26.2 at ≥2 admissions (95% CI 6.80-10.9, and 19.78-34.8, respectively; p for trend < 0.0001). CONCLUSION FS may increase the risk for subsequent epilepsy in children. Recurrent FS increased the cumulative incidence of epilepsy.
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Affiliation(s)
- Jeng-Dau Tsai
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan; Department of Paediatrics, Chung Shan Medical University and Hospital, Taichung, Taiwan
| | - Chih-Hsin Mou
- Institute of Clinical and Medical Science, China Medical University, Taichung, Taiwan; Management Office for Health Data, China Medical University Hospital, Taichung, Taiwan
| | - Hsing-Yi Chang
- Institute of Population Health Sciences, National Health Research Institutes, Taiwan
| | - Tsai-Chung Li
- Graduate Institute of Biostatistics, College of Public Health, China Medical University, Taichung, Taiwan; Department of Healthcare Administration, College of Health Science, Asia University, Taichung, Taiwan
| | - Henry J Tsai
- Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan
| | - Chang-Ching Wei
- Children's Hospital, China Medical University Hospital, Taichung, Taiwan; College of Medicine, China Medical University, Taichung, Taiwan.
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Leung AK, Hon KL, Leung TN. Febrile seizures: an overview. Drugs Context 2018; 7:212536. [PMID: 30038660 PMCID: PMC6052913 DOI: 10.7573/dic.212536] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 06/16/2018] [Accepted: 06/19/2018] [Indexed: 12/14/2022] Open
Abstract
Background Febrile seizures are the most common neurologic disorder in childhood. Physicians should be familiar with the proper evaluation and management of this common condition. Objective To provide an update on the current understanding, evaluation, and management of febrile seizures. Methods A PubMed search was completed in Clinical Queries using the key terms ‘febrile convulsions’ and ‘febrile seizures’. The search strategy included meta-analyses, randomized controlled trials, clinical trials, observational studies, and reviews. Results Febrile seizures, with a peak incidence between 12 and 18 months of age, likely result from a vulnerability of the developing central nervous system to the effects of fever, in combination with an underlying genetic predisposition and environmental factors. The majority of febrile seizures occur within 24 hours of the onset of the fever. Febrile seizures can be simple or complex. Clinical judgment based on variable presentations must direct the diagnostic studies which are usually not necessary in the majority of cases. A lumbar puncture should be considered in children younger than 12 months of age or with suspected meningitis. Children with complex febrile seizures are at risk of subsequent epilepsy. Approximately 30–40% of children with a febrile seizure will have a recurrence during early childhood. The prognosis is favorable as the condition is usually benign and self-limiting. Intervention to stop the seizure often is unnecessary. Conclusion Continuous preventative antiepileptic therapy for the prevention of recurrent febrile seizures is not recommended. The use of intermittent anticonvulsant therapy is not routinely indicated. Antipyretics have no role in the prevention of febrile seizures.
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Affiliation(s)
- Alexander Kc Leung
- Department of Pediatrics, The University of Calgary, Alberta Children's Hospital, Calgary, Alberta, Canada
| | - Kam Lun Hon
- Department of Pediatrics, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Theresa Nh Leung
- Department of Pediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
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Yamanaka G, Ishida Y, Morichi S, Morishita N, Takeshita M, Tomomi U, Tomoko M, Oana S, Kashiwagi Y, Kawashima H. Spinal Fluid Cytokine Levels and Single-Photon Emission Computed Tomography Findings in Complex Febrile Seizures. J Child Neurol 2018; 33:417-421. [PMID: 29618277 DOI: 10.1177/0883073818760890] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
In this study, the authors assessed cerebrospinal fluid cytokine levels and single-photon emission computed tomography (SPECT) findings in complex febrile seizures. This study included 23 Japanese patients with complex febrile seizures. Twenty patients underwent SPECT and 12 underwent analysis of cerebrospinal fluid cytokine levels (interleukin [IL]-6, interleukin-10, interleukin-17, interleukin-1β, tumor necrosis factor-α, and interferon-γ); 9 patients underwent both studies. Cerebrospinal fluid cytokine levels were compared between the current complex febrile seizure patients and 30 patients with acute encephalopathy. In 17 of 20 patients, SPECT findings revealed areas of hypoperfusion, including the frontal (5), occipital (4), and lobular (4) regions, overlapping with other areas. Relative to patients with acute encephalopathy, those with complex febrile seizures exhibited significantly lower cerebrospinal fluid interleukin-6, interleukin-1β, tumor necrosis factor-α, and interleukin-10 levels and significantly higher interleukin-17 levels. As patients with complex febrile seizures frequently exhibit abnormal SPECT findings, cerebrospinal fluid interleukin-17 levels might provide a valid biomarker to discriminate complex febrile seizures and acute encephalopathy, regardless of SPECT findings.
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Affiliation(s)
- Gaku Yamanaka
- 1 Department of Pediatrics, Tokyo Medical University, Tokyo, Japan
| | - Yu Ishida
- 1 Department of Pediatrics, Tokyo Medical University, Tokyo, Japan
| | | | | | - Mika Takeshita
- 1 Department of Pediatrics, Tokyo Medical University, Tokyo, Japan
| | - Urabe Tomomi
- 1 Department of Pediatrics, Tokyo Medical University, Tokyo, Japan
| | - Mori Tomoko
- 1 Department of Pediatrics, Tokyo Medical University, Tokyo, Japan
| | - Shingo Oana
- 1 Department of Pediatrics, Tokyo Medical University, Tokyo, Japan
| | - Yasuyo Kashiwagi
- 1 Department of Pediatrics, Tokyo Medical University, Tokyo, Japan
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Predictive value of EEG for febrile seizure recurrence. Brain Dev 2018; 40:311-315. [PMID: 29277331 DOI: 10.1016/j.braindev.2017.12.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 12/02/2017] [Accepted: 12/05/2017] [Indexed: 11/22/2022]
Abstract
OBJECTIVE To define the role of the EEG in predicting recurrence of febrile seizures (FS) in children after a first FS. METHODS Children with a first simple or complex FS who underwent EEG at our hospital were retrospectively enrolled. EEG recordings were classified in three groups: normal, abnormal (slow activity or epileptiform discharges), and pseudo-petit mal discharge (PPMD) pattern. Children were followed-up for at least three years. RESULTS A total of 126 patients met the entry criteria, and 113 of them completed the follow-up. Risk of FS recurrence decreased linearly with increasing age (-2% per month). The risk was higher among patients with PPMD pattern (absolute risk 86%, adjusted relative risk 2.00) and abnormal EEG (epileptiform discharges: absolute risk 71%, adjusted relative risk 2.00; slow activity: absolute risk 56%, adjusted relative risk 1.44), compared with those with normal EEG (absolute risk 41%). CONCLUSIONS PPMD and abnormal EEG should be considered as an independent risk factor for FS recurrence.
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30
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Håberg SE, Aaberg KM, Surén P, Trogstad L, Ghaderi S, Stoltenberg C, Magnus P, Bakken IJ. Epilepsy in Children After Pandemic Influenza Vaccination. Pediatrics 2018; 141:peds.2017-0752. [PMID: 29449342 DOI: 10.1542/peds.2017-0752] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/05/2017] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVES To determine if pandemic influenza vaccination was associated with an increased risk of epilepsy in children. METHODS Information from Norwegian registries from 2006 through 2014 on all children <18 years living in Norway on October 1, 2009 was used in Cox regression models to estimate hazard ratios for incident epilepsy after vaccination. A self-controlled case series analysis was used to estimate incidence rate ratios in defined risk periods after pandemic vaccination. RESULTS In Norway, the main period of the influenza A subtype H1N1 pandemic was from October 2009 to December 2009. On October 1, 2009, 1 154 113 children <18 years of age were registered as residents in Norway. Of these, 572 875 (50.7%) were vaccinated against pandemic influenza. From October 2009 through 2014 there were 3628 new cases of epilepsy (incidence rate 6.09 per 10 000 person-years). The risk of epilepsy was not increased after vaccination: hazard ratio: 1.07; 95% confidence interval: 0.94-1.23. Results from the self-controlled case series analysis supported the finding of no association between vaccination and subsequent epilepsy. CONCLUSIONS Pandemic influenza vaccination was not associated with increased risk of epilepsy. Concerns about pandemic vaccination causing epilepsy in children seem to be unwarranted.
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Affiliation(s)
| | - Kari M Aaberg
- Norwegian Institute of Public Health, Oslo, Norway.,The National Center for Epilepsy, Oslo University Hospital, Oslo, Norway
| | - Pål Surén
- Norwegian Institute of Public Health, Oslo, Norway.,The National Center for Epilepsy, Oslo University Hospital, Oslo, Norway
| | | | - Sara Ghaderi
- Norwegian Institute of Public Health, Oslo, Norway
| | - Camilla Stoltenberg
- Norwegian Institute of Public Health, Oslo, Norway.,Department of Global Public Health and Community Care, University of Bergen, Bergen, Norway; and
| | - Per Magnus
- Norwegian Institute of Public Health, Oslo, Norway.,Institute of Health and Society, University of Oslo, Oslo, Norway
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Canpolat M, Per H, Gumus H, Elmali F, Kumandas S. Investigating the prevalence of febrile convulsion in Kayseri, Turkey: An assessment of the risk factors for recurrence of febrile convulsion and for development of epilepsy. Seizure 2018; 55:36-47. [DOI: 10.1016/j.seizure.2018.01.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 12/19/2017] [Accepted: 01/08/2018] [Indexed: 10/18/2022] Open
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Gencpinar P, Yavuz H, Bozkurt Ö, Haspolat Ş, Duman Ö. The risk of subsequent epilepsy in children with febrile seizure after 5 years of age. Seizure 2017; 53:62-65. [PMID: 29127859 DOI: 10.1016/j.seizure.2017.11.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2016] [Revised: 10/04/2017] [Accepted: 11/06/2017] [Indexed: 11/17/2022] Open
Abstract
PURPOSE Despite their age-dependent definition, febrile seizures (FS) may be observed in people of almost any age. The risk of developing unprovoked seizures after an FS is well defined. However, there are limited data about FS starting or persisting after 5 years of age. In the present study, we evaluated patients who developed FS after 5 years of age. METHOD Between 2010 and 2014, we prospectively enrolled all patients with FS. We collected demographic and clinical features, radiologic images, electroencephalograms (EEGs), and results of psychomotor development tests and treatment data of the patients. The patients were grouped into two groups. Group 1 consisted of patients who had the first FS after 5 years of age, and group 2 consisted of patients in whom FS persisted after 5 years of age. Fisher's exact test and Pearson's chi-square test were used to analyse the study data and derive conclusions. RESULTS Sixty-four patients were enrolled, and afebrile seizure was observed in 12 (18.8%) of them. Nine (14%) patients were diagnosed to have epilepsy in their follow-up examination. Subsequent epilepsy occurrence was independent of gender, mean age, medical history of the patient, family history of epilepsy, presence of afebrile seizure, type of seizure, type of FS, duration of seizure, semiology of seizure, peak fever and EEG and magnetic resonance imaging (MRI) findings in our total cohort. There were no statistical differences between the groups with regard to the occurrence of subsequent afebrile seizure or epilepsy (p>0.5). CONCLUSION Close follow-up is important in patients with FS after the age of 5 years. These seizures are generally benign, but tend to recur and increase the risk of development of epilepsy in the patient. Further studies with a larger cohort are warranted to clarify risk factors and incidence of epilepsy in these patients.
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Affiliation(s)
- Pinar Gencpinar
- Department of Pediatric Neurology, Izmir Katip Celebi University, Tepecik Training and Research Hospital, İzmir, Turkey
| | - Hamdi Yavuz
- Department of Pediatrics, Akdeniz University, Faculty of Medicine, Antalya, Turkey
| | - Öznur Bozkurt
- Department of Pediatric Neurology, Akdeniz University, Faculty of Medicine, Antalya, Turkey
| | - Şenay Haspolat
- Department of Pediatric Neurology, Akdeniz University, Faculty of Medicine, Antalya, Turkey
| | - Özgür Duman
- Department of Pediatric Neurology, Akdeniz University, Faculty of Medicine, Antalya, Turkey.
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Auvin S, Antonios M, Benoist G, Dommergues MA, Corrard F, Gajdos V, Gras Leguen C, Launay E, Salaün A, Titomanlio L, Vallée L, Milh M. Évaluation d’un enfant après une crise fébrile : focus sur trois problèmes de pratique clinique. Arch Pediatr 2017; 24:1137-1146. [DOI: 10.1016/j.arcped.2017.08.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Accepted: 08/23/2017] [Indexed: 11/24/2022]
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Abstract
BACKGROUND Febrile seizure is the most common convulsive event during childhood, but it is generally considered benign. OBJECTIVES To estimate the rate of epilepsy after first presentation of febrile seizure and to describe factors that can predispose children to have subsequent epilepsy after their first febrile seizure. DESIGN Retrospective chart review. SETTING A tertiary care center in Riyadh. PATIENTS AND METHODS All children whose first febrile seizure developed between 2009-2012, and who were admitted to the pediatric wards. MAIN OUTCOME MEASURES The rate of epilepsy and prognostic factors for epilepsy following first febrile seizure. RESULTS Of 109 febrile seizure patients, 6 (5.5%, 95% CI: 2.1% - 11.6%) were diagnosed with subsequent epilepsy 5 to 46 months after their first febrile seizure. The risk of having subsequent epilepsy was higher in children who were convulsing at a low-grade fever during their first febrile convulsion (P=.02). Moreover, delayed vaccination status (P=.03), prolonged duration of the first convulsion (P=.04), frequent febrile seizures (P=.01), and fever without documented infection (P=.03) during the first febrile convulsion were associated with epilepsy. CONCLUSION The rate of epilepsy following first febrile seizure in Saudi children is within the range of values reported in different populations. Although most childhood febrile seizures are self-limiting, careful observation is needed, particularly for children who exhibit factors associated with epilepsy. LIMITATIONS Conducted at a single center in Saudi Arabia, which may limit generalizability.
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Affiliation(s)
- Abdullah I Almojali
- Dr. Abdullah Ibrahim Almojali, College of Medicine, King Saud bin Abdulaziz University for Health Sciences,, PO Box 22490, Riyadh 11426, Saudi Arabia, T: +966-11-4299999, , http://orcid.org/0000-0003-4208-4196
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Abstract
Seizures in children are among the most common neurological disorders. A pediatrician should know how to approach a child who presents with a seizure. This review will focus on points that are important in the evaluation of children who have experienced seizures. A comprehensive and neurologically focused framework for history taking and a thorough clinical examination are the cornerstones in diagnosing and managing seizures. This article reviews the clinical approach to the diagnosis, investigation, and management of epilepsy in children, excluding neonatal seizures. A pediatrician should also be aware of common epilepsy syndromes that occur in children such as Benign Childhood Epilepsy with Centro-Temporal Spikes, and childhood absence epilepsy.
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Affiliation(s)
- Fahad A Bashiri
- Department of Pediatrics, College of Medicine, King Saud University Medical City, King Saud University, Riyadh, Kingdom of Saudi Arabia. E-mail:
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Natsume J, Hamano SI, Iyoda K, Kanemura H, Kubota M, Mimaki M, Niijima S, Tanabe T, Yoshinaga H, Kojimahara N, Komaki H, Sugai K, Fukuda T, Maegaki Y, Sugie H. New guidelines for management of febrile seizures in Japan. Brain Dev 2017; 39:2-9. [PMID: 27613077 DOI: 10.1016/j.braindev.2016.06.003] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Revised: 06/11/2016] [Accepted: 06/13/2016] [Indexed: 12/01/2022]
Abstract
In 2015, the Japanese Society of Child Neurology released new guidelines for the management of febrile seizures, the first update of such guidelines since 1996. In 1988, the Conference on Febrile Convulsions in Japan published "Guidelines for the Treatment of Febrile Seizures." The Task Committee of the Conference proposed a revised version of the guidelines in 1996; that version released in 1996 was used for the next 19years in Japan for the clinical management of children with febrile seizures. Although the guidelines were very helpful for many clinicians, new guidelines were needed to reflect changes in public health and the dissemination of new medical evidence. The Japanese Society of Child Neurology formed a working group in 2012, and published the new guidelines in March 2015. The guidelines include emergency care, application of electroencephalography, neuroimaging, prophylactic diazepam, antipyretics, drugs needing special attention, and vaccines. While the new guidelines contain updated clinical recommendations, many unsolved questions remain. These questions should be clarified by future clinical research.
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Affiliation(s)
- Jun Natsume
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan; Department of Developmental Disability Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan.
| | - Shin-Ichiro Hamano
- Division of Neurology, Saitama Children's Medical Center, Saitama, Japan
| | - Kuniaki Iyoda
- Fukuyama Support Center of Development and Care for Children, Fukuyama, Japan
| | - Hideaki Kanemura
- Department of Pediatrics, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Masaya Kubota
- Division of Neurology, National Center for Child Health and Development, Tokyo, Japan
| | - Masakazu Mimaki
- Department of Pediatrics, Teikyo University School of Medicine, Tokyo, Japan
| | - Shinichi Niijima
- Department of Pediatrics, Juntendo University Nerima Hospital, Tokyo, Japan
| | | | - Harumi Yoshinaga
- Department of Child Neurology, Okayama University Graduate Schools of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Noriko Kojimahara
- Department of Public Health, Tokyo Women's Medical University, Tokyo, Japan
| | - Hirohumi Komaki
- Department of Child Neurology, National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Kenji Sugai
- Department of Child Neurology, National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Tokiko Fukuda
- Department of Pediatrics, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Yoshihiro Maegaki
- Division of Child Neurology, Faculty of Medicine, Tottori University, Tottori, Japan
| | - Hideo Sugie
- Faculty of Health and Medical Sciences, Tokoha University Hamamatsu Campus, Hamamatsu, Japan
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Lee SH, Byeon JH, Kim GH, Eun BL, Eun SH. Epilepsy in children with a history of febrile seizures. KOREAN JOURNAL OF PEDIATRICS 2016; 59:74-9. [PMID: 26958066 PMCID: PMC4781735 DOI: 10.3345/kjp.2016.59.2.74] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 09/04/2015] [Accepted: 09/26/2015] [Indexed: 11/27/2022]
Abstract
PURPOSE Febrile seizure, the most common type of pediatric convulsive disorder, is a benign seizure syndrome distinct from epilepsy. However, as epilepsy is also common during childhood, we aimed to identify the prognostic factors that can predict epilepsy in children with febrile seizures. METHODS The study comprised 249 children at the Korea University Ansan Hospital who presented with febrile seizures. The relationship between the subsequent occurrence of epilepsy and clinical factors including seizure and fever-related variables were analyzed by multivariate analysis. RESULTS Twenty-five patients (10.0%) had additional afebrile seizures later and were diagnosed with epilepsy. The subsequent occurrence of epilepsy in patients with a history of febrile seizures was associated with a seizure frequency of more than 10 times during the first 2 years after seizure onset (P<0.001). Factors that were associated with subsequent occurrence of epilepsy were developmental delay (P<0.001), preterm birth (P=0.001), multiple seizures during a febrile seizure attack (P=0.005), and epileptiform discharges on electroencephalography (EEG) (P=0.008). Other factors such as the age at onset of first seizure, seizure duration, and family history of epilepsy were not associated with subsequent occurrence of epilepsy in this study. CONCLUSION Febrile seizures are common and mostly benign. However, careful observation is needed, particularly for prediction of subsequent epileptic episodes in patients with frequent febrile seizures with known risk factors, such as developmental delay, history of preterm birth, several attacks during a febrile episode, and epileptiform discharges on EEG.
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Affiliation(s)
- Sang Hyun Lee
- Department of Pediatrics, Korea University College of Medicine, Seoul, Korea
| | - Jung Hye Byeon
- Department of Pediatrics, Korea University College of Medicine, Seoul, Korea
| | - Gun Ha Kim
- Department of Pediatrics, Korea University College of Medicine, Seoul, Korea
| | - Baik-Lin Eun
- Department of Pediatrics, Korea University College of Medicine, Seoul, Korea
| | - So-Hee Eun
- Department of Pediatrics, Korea University College of Medicine, Seoul, Korea
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Gradisnik P, Zagradisnik B, Palfy M, Kokalj-Vokac N, Marcun-Varda N. Predictive value of paroxysmal EEG abnormalities for future epilepsy in focal febrile seizures. Brain Dev 2015; 37:868-73. [PMID: 25735907 DOI: 10.1016/j.braindev.2015.02.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2014] [Revised: 02/06/2015] [Accepted: 02/13/2015] [Indexed: 11/25/2022]
Abstract
PURPOSE OF THE STUDY To reassess the predictive role of clinical parameters and epileptiform paroxysmal EEG abnormalities for subsequent epilepsy in patients with febrile seizures. PATIENTS AND METHODS 179 patients with febrile seizures were included in a prospective study investigating the impact of some clinical parameters and EEG abnormalities that could be important for future epilepsy. EEGs were performed in afebrile patients after hospital discharge. The follow-up period from the first presentation ranged from 2.1 to 9.2 years (mean, 6.6 years). The correlation between the development of epileptic seizures and the presence of epileptiform EEG abnormalities in the two groups was evaluated with the Mann-Whitney and chi-square test. Statistical significance was set at p<0.05. RESULTS Febrile seizures occurred more than once in 58 (32.5%) patients, with one recurrence in 32 (17.9%) patients and multiple recurrences in 26 (14.5%) patients. The incidence of paroxysmal abnormalities was 16.8%. Of these, 15 patients (50%) showed generalized paroxysms only, while in 15 patients (50%), focal abnormalities were found. Epilepsy developed in 12 patients (6.7%). There were 27 patients with clinically focal features of the first febrile seizure, five (18.5%) of whom developed epilepsy. With focal EEG abnormalities included, the incidence of epilepsy increased to 50%. CONCLUSION Generalized EEG discharges in patients with febrile seizures are not predictive of later epilepsy, but focal discharges are.
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Affiliation(s)
- Peter Gradisnik
- University Medical Centre Maribor, Department of Pediatrics, Slovenia.
| | - Boris Zagradisnik
- University Medical Centre Maribor, Laboratory of Medical Genetics, Slovenia
| | - Miroslav Palfy
- University Medical Centre Maribor, Department of Medical Research, Slovenia
| | - Nadja Kokalj-Vokac
- University Medical Centre Maribor, Laboratory of Medical Genetics, Slovenia
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Stafstrom CE, Carmant L. Seizures and epilepsy: an overview for neuroscientists. Cold Spring Harb Perspect Med 2015; 5:5/6/a022426. [PMID: 26033084 DOI: 10.1101/cshperspect.a022426] [Citation(s) in RCA: 369] [Impact Index Per Article: 41.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Epilepsy is one of the most common and disabling neurologic conditions, yet we have an incomplete understanding of the detailed pathophysiology and, thus, treatment rationale for much of epilepsy. This article reviews the clinical aspects of seizures and epilepsy with the goal of providing neuroscientists an introduction to aspects that might be amenable to scientific investigation. Seizures and epilepsy are defined, diagnostic methods are reviewed, various clinical syndromes are discussed, and aspects of differential diagnosis, treatment, and prognosis are considered to enable neuroscientists to formulate basic and translational research questions.
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Affiliation(s)
- Carl E Stafstrom
- Division of Pediatric Neurology, Departments of Neurology and Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287
| | - Lionel Carmant
- Division of Neurology, Department of Pediatrics, Sainte-Justine Hospital, Universite Montreal, Montreal, Quebec H3T 1C5, Canada
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Abstract
PURPOSE OF REVIEW The review describes current evidence on the evaluation of febrile seizures in the acute setting, the need for further outpatient assessment, and predictors regarding long-term outcomes of these patients. RECENT FINDINGS New evidence has been added in support of limited assessment and intervention: evidence on low utility of lumbar puncture, emergent neuroimaging, and follow-up electroencephalography, as well as low yield for antipyretic prophylaxis and intermittent use of antiepileptic drugs. Finally, there is growing evidence regarding the genetic basis of both febrile seizures and vaccine-related seizures/febrile seizures. SUMMARY Routine diagnostic testing for simple febrile seizures is being discouraged, and clear evidence-based guidelines regarding complex febrile seizures are lacking. Thus, clinical acumen remains the most important tool for identifying children with seizures who are candidates for a more elaborate diagnostic evaluation. Similarly, evidence and guidelines regarding candidates for an emergent out-of-hospital diazepam treatment are lacking.
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Millichap JG, Millichap JJ. Risk Factors for Epilepsy after Febrile Seizures. Pediatr Neurol Briefs 2014. [DOI: 10.15844/pedneurbriefs-28-3-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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