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Pereira-Nunes J, Sousa JM, Fonseca J, Melo C, Alves D, Sampaio M, Sousa R. Successful Treatment of a Child With Epileptic Encephalopathy With Spike-Wave Activation in Sleep and GRIN2A Variant Using Sulthiame. Cureus 2023; 15:e34686. [PMID: 36909045 PMCID: PMC9996194 DOI: 10.7759/cureus.34686] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/06/2023] [Indexed: 02/09/2023] Open
Abstract
Epileptic encephalopathy with spike-wave activation in sleep (EE-SWAS) and developmental EE-SWAS (DEE-SWAS) are characterized by variable combinations of cognitive, language, behavioral, and/or motor regression associated with continuous or near-continuous diffuse spike-and-wave complexes during sleep. Glutamate ionotropic receptor NMDA type subunit 2A (GRIN2A) variants have been associated with EE-SWAS. It encodes the most relevant GluN2 subunit of the N-methyl-D-aspartate receptor (NMDAR). Sulthiame reduces NMDAR-mediated neuronal excitability and has been progressively used as monotherapy in self-limited epilepsy with centrotemporal spikes (SeLECTS) or as add-ontherapy in EE-SWAS/DEE-SWAS. A five-year-old female, with family history of epilepsy, was initially diagnosed with SeLECTS and medicated with valproic acid (VPA). One year later, she presented a focal to bilateral tonic-clonic seizure during sleep and learning difficulty. The electroencephalogram revealed continuous spike-and-wave during sleep leading to the diagnosis of EE-SWAS. Prednisolone was effective, but there was repeated recurrence after its discontinuation and associated adverse effects. As an alternative, sulthiame was added to VPA. Four years later, she remains clinically stable. Genetic testing revealed a GRIN2A missense variant, C.3228C>A (p.Asn1076Lys). Sulthiame appeared effective in this recurrent EE-SWAS child, who presented a GRIN2A missense variant with possible NMDAR gain-of-function and adverse effects of corticosteroids. Functional studies of GRIN2A variants might become a future tool for individualized therapies.
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Affiliation(s)
- Joana Pereira-Nunes
- Department of Pediatrics, Centro Hospitalar Universitário de São João, Porto, PRT.,Department of Gynecology-Obstetrics and Pediatrics, Faculty of Medicine of Porto University, Porto, PRT
| | - José Maria Sousa
- Department of Neuroradiology, Centro Hospitalar Universitário de São João, Porto, PRT
| | - Jacinta Fonseca
- Pediatric Neurology Unit, Department of Pediatrics, Centro Hospitalar Universitário de São João, Porto, PRT
| | - Cláudia Melo
- Pediatric Neurology Unit, Department of Pediatrics, Centro Hospitalar Universitário de São João, Porto, PRT.,Department of Gynecology-Obstetrics and Pediatrics, Faculty of Medicine of Porto University, Porto, PRT
| | - Dílio Alves
- Department of Neurophysiology, Centro Hospitalar Universitário de São João, Porto, PRT
| | - Mafalda Sampaio
- Pediatric Neurology Unit, Department of Pediatrics, Centro Hospitalar Universitário de São João, Porto, PRT
| | - Raquel Sousa
- Pediatric Neurology Unit, Department of Pediatrics, Centro Hospitalar Universitário de São João, Porto, PRT
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Yu T, Teng ZT, Liu XY, Wang H. Effectiveness of perampanel in the treatment of pediatric patients with focal epilepsy and ESES: A single-center retrospective study. Front Pharmacol 2022; 13:1026836. [PMID: 36278197 PMCID: PMC9585220 DOI: 10.3389/fphar.2022.1026836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 09/20/2022] [Indexed: 11/28/2022] Open
Abstract
Objective: To investigate the therapeutic effect and influencing factors of perampanel (PER) on electrical status epilepticus during sleep (ESES). Methods: We retrospectively analyzed the clinical data of pediatric patients with focal epilepsy and ESES who were treated at the Epilepsy Center of Shengjing Hospital of China Medical University between January 2016 and March 2022. Changes in the spike wave index (SWI) after 24 weeks of PER add-on treatment were compared. Kaplan‒Meier survival analysis, the log-rank test and multivariate Cox regression analysis were performed. Results: A total of 54 pediatric patients met the inclusion criteria, including 33 males and 21 females. The mean age at the diagnosis of epilepsy was 6.41 ± 2.14 years and at ESES diagnosis was 7.58 ± 2.40 years. The mean ESES duration before add-on PER was 25.31 ± 15.12 months. The mean age of the patients at add-on PER initiation was 9.69 ± 2.12 years. The ESES resolved in 29 children after 6 months of PER add-on treatment, and the response rate was 53.7%. Univariate analysis with the log-rank test showed that the therapeutic effect of PER differed according to the age at ESES diagnosis and ESES duration before add-on PER treatment. Multivariate Cox regression analysis showed that only ESES duration before PER administration was a risk factor for PER treatment failure, and the other factors had no effect on the therapeutic effect. Conclusion: PER add-on treatment has a good therapeutic effect on ESES and can be used as an alternative to corticosteroid and benzodiazepines. The therapeutic effect of PER add-on treatment was not related to the dose. A longer ESES duration results in a worse therapeutic effect. Therefore, more aggressive treatment measures should be implemented for ESES.
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Sapuppo A, Portale L, Massimino CR, Presti S, Tardino L, Marino S, Polizzi A, Falsaperla R, Praticò AD. GRIN2A and GRIN2B and Their Related Phenotypes. JOURNAL OF PEDIATRIC NEUROLOGY 2021. [DOI: 10.1055/s-0041-1727146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
AbstractGlutamate is the most relevant excitatory neurotransmitter of the central nervous system; it binds with several receptors, including N-methyl-D-aspartate receptors (NMDARs), a subtype of ionotropic glutamate receptor that displays voltage-dependent block by Mg2+ and a high permeability to Ca2+. GRIN2A and GRIN2B genes encode the GluN2A and GluN2B subunits of the NMDARs, which play important roles in synaptogenesis, synaptic transmission, and synaptic plasticity, as well as contributing to neuronal loss and dysfunction in several neurological disorders. Recently, individuals with a range of childhood-onset drug-resistant epilepsies, such as Landau–Kleffner or Lennox–Gastaut syndrome, intellectual disability (ID), and other neurodevelopmental abnormalities have been found to carry mutations in GRIN2A and GRIN2B, with high variable expressivity in phenotype. The first one is found mainly in epilepsy-aphasia syndromes, while the second one mainly in autism, schizophrenia, and ID, such as autism spectrum disorders. Brain magnetic resonance imaging alterations are found in some patients, even if without a clear clinical correlation. At the same time, increasing data on genotype–phenotype correlation have been found, but this is still not fully demonstrated. There are no specific therapies for the treatment of correlated NMDARs epilepsy, although some evidence with memantine, an antagonist of glutamate receptor, is reported in the literature in selected cases with mutation determining a gain of function.
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Affiliation(s)
- Annamaria Sapuppo
- Pediatrics Postgraduate Residency Program, Section of Pediatrics and Child Neuropsychiatry, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Laura Portale
- Pediatrics Postgraduate Residency Program, Section of Pediatrics and Child Neuropsychiatry, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Carmela R. Massimino
- Pediatrics Postgraduate Residency Program, Section of Pediatrics and Child Neuropsychiatry, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Santiago Presti
- Pediatrics Postgraduate Residency Program, Section of Pediatrics and Child Neuropsychiatry, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Lucia Tardino
- Unit of Pediatrics and Pediatric Emergency, University Hospital “Policlinico Rodolico-San Marco,” Catania, Italy
| | - Simona Marino
- Unit of Pediatrics and Pediatric Emergency, University Hospital “Policlinico Rodolico-San Marco,” Catania, Italy
| | - Agata Polizzi
- Chair of Pediatrics, Department of Educational Sciences, University of Catania, Catania, Italy
| | - Raffaele Falsaperla
- Unit of Pediatrics and Pediatric Emergency, University Hospital “Policlinico Rodolico-San Marco,” Catania, Italy
- Unit of Neonatal Intensive Care and Neonatology, University Hospital “Policlinico Rodolico-San Marco,” Catania, Italy
| | - Andrea D. Praticò
- Unit of Rare Diseases of the Nervous Systemin Childhood, Section of Pediatrics and Child Neuropsychiatry, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
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Öztoprak Ü, Yayici Köken Ö, Aksoy E, Yüksel D. Spike-Wave Index Assessment and Electro-Clinical Correlation in Patients with Encephalopathy Associated with Epileptic State During Slow Sleep (ESES / CSWS); Single-Center Experience. Epilepsy Res 2021; 170:106549. [PMID: 33450525 DOI: 10.1016/j.eplepsyres.2021.106549] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/06/2020] [Accepted: 12/30/2020] [Indexed: 11/19/2022]
Abstract
PURPOSE This study aimed to describe the electroclinical spectrum and neurocognitive outcome in children with epileptic encephalopathy with status epilepticus during sleep (ESES) according to the EEG patterns. METHODS Records of 48 (19 males, 29 females) patients with ESES/CSWS syndrome were retrospectively evaluated for data on sleep and awake EEGs, psychometric tests, and brain MRI. Patients with a spike-wave index (SWI) of at least 50 % in the NREM sleep EEG were included in the study. Electrophysiologic findings were separated into two groups based on SWI: SWI>85-100 % (typical ESES) and SWI < 85 % (atypical ESES). The neurocognitive prognosis was also evaluated in two groups; favorable and unfavorable. RESULTS The median age at the onset of ESES was 6 years and 5 months and ranged from 3 to 13 years. The median duration of follow-up after the ESES diagnosis was 57 months (range 24-150 months). Etiology was evaluated in three groups: symptomatic/structural, idiopathic, and unknown (cryptogenic). Twenty-seven (56.25 %) patients had atypical ESES patterns and 21 patients (43.75 %) had typical ESES patterns. Twenty-eight patients (58.3 %) had cognitive deterioration. Long term neurocognitive outcome was unfavorable in half of the patients. Symptomatic/structural etiology was more common in patients with unfavorable (p < 0.001) outcomes. The median age at the diagnosis of ESES (p < 0.001) was significantly earlier in the patients with unfavorable neurocognitive outcomes. The longer duration of ESES(p < 0.001), and the longer time between the onset of epilepsy and ESES (p = 0.039) was significantly associated with unfavorable outcomes. We found that patients with typical ESES had a higher risk for poor neurocognitive outcomes than patients with atypical ESES (OR: 31.096 [1.565-617.696]). CONCLUSION The long-term outcome of ESES is exceedingly variable. An unfavorable neurocognitive outcome seems to be related to ESES with a long-duration and early-onset epileptic activity, SWI ≥ 85 %, and etiology.
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Affiliation(s)
- Ülkühan Öztoprak
- University of Health Sciences, Dr. Sami Ulus Training and Research Hospital, Department of Pediatric Neurology, Ankara, Turkey.
| | - Özlem Yayici Köken
- Ankara City Hospital, Children's Hospital, Department of Pediatric Neurology, Ankara, Turkey.
| | - Erhan Aksoy
- University of Health Sciences, Dr. Sami Ulus Training and Research Hospital, Department of Pediatric Neurology, Ankara, Turkey.
| | - Deniz Yüksel
- University of Health Sciences, Dr. Sami Ulus Training and Research Hospital, Department of Pediatric Neurology, Ankara, Turkey.
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The role of sleep-related cognitive functions in the spectrum of benign epilepsy with centro-temporal spikes. Eur J Pediatr 2019; 178:1129-1137. [PMID: 31227889 DOI: 10.1007/s00431-019-03413-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 06/11/2019] [Accepted: 06/12/2019] [Indexed: 01/02/2023]
Abstract
Heterogeneous cognitive deficits have been described in the spectrum of benign epilepsy with centro-temporal spikes, which strongly correlate with the intensity of interictal epileptiform discharges and its spreading, in particular during sleep, mostly within the perisylvian cognitive network. The aim of this review is to discuss current findings regarding the connection between sleep alterations and cognitive function in the spectrum of benign epilepsy with centro-temporal spikes. A longer sleep onset latency is the only evident sleep macrostructure alteration reported in the spectrum of benign epilepsy with centro-temporal spikes. On a microstructural level, a higher spike count of descending compared to ascending slopes of sleep cycles, an impairment of slow wave downscaling, and amplitude and slope of slow waves were found in the spectrum of benign epilepsy with centro-temporal spikes. Moreover, children with benign epilepsy with centro-temporal spikes had a reduced non-rapid eye movement sleep instability, in terms of cyclic alternating pattern, similar to that found in children with attention-deficit hyperactivity disorders and in children with obstructive sleep apnea and centro-temporal spike during sleep. Children with benign epilepsy with centro-temporal spikes have a known comorbidity with attention-deficit hyperactivity disorders and obstructive sleep apnea.Conclusion: Considering the common sleep microstructure alterations, the presence of attention deficit and hyperactivity and/or sleep apnea may be a considered warning sign in the case of benign epilepsy with centro-temporal spikes. What is Known: • Sleep related-cognitive deficits have been described in the spectrum of benign epilepsy with centro-temporal spikes. The degree of sleep alterations may predict the neurocognitive outcome, and help clinicians to choose the right treatment. What is New: • Considering the common sleep microstructure alterations, attention deficit and sleep apnea, may be a considered warning signs.
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Mohammadi M, kowkabi S, Asadi-Pooya AA, Malamiri RA, Badv RS. Hemi-ESES associated with agenesis of the corpus callosum and normal cognition. EPILEPSY & BEHAVIOR CASE REPORTS 2019; 11:96-98. [PMID: 30834195 PMCID: PMC6384300 DOI: 10.1016/j.ebcr.2019.01.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 01/16/2019] [Accepted: 01/17/2019] [Indexed: 11/24/2022]
Abstract
Corpus callosum plays the important role in bilateral synchronous expression of focal discharges of ESES. Sparing dominant hemisphere form continuous spike and slow waves during sleep accounts for normal cognitive scores. Early detection and treatment of ESES have a great impact on cognitive and language scores and final prognosis.
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Affiliation(s)
- Mahmoud Mohammadi
- Children's Medical Centre, Tehran University of Medical Sciences, Tehran, Iran
| | - Safoura kowkabi
- Children's Medical Centre, Tehran University of Medical Sciences, Tehran, Iran
- Corresponding author at: Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Ali A. Asadi-Pooya
- Jefferson Comprehensive Epilepsy Center, Department of Neurology, Thomas Jefferson University, Philadelphia, PA, USA
- Department of Neurology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Reza Azizi Malamiri
- Department of Pediatric Neurology, Golestan Medical, Educational and Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Reza Shervin Badv
- Children's Medical Centre, Tehran University of Medical Sciences, Tehran, Iran
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Sun Y, Liu YD, Xu ZF, Kong QX, Wang YL. CNKSR2 mutation causes the X-linked epilepsy-aphasia syndrome: A case report and review of literature. World J Clin Cases 2018; 6:570-576. [PMID: 30397616 PMCID: PMC6212609 DOI: 10.12998/wjcc.v6.i12.570] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Revised: 08/21/2018] [Accepted: 08/28/2018] [Indexed: 02/05/2023] Open
Abstract
The mutation in CNKSR2 leads to a broad spectrum of phenotypic variability and manifests as an X-linked intellectual disability. However, we reported that the male patient in this study not only had intellectual disability but also epileptic seizures. In addition, there were progressive language impairment, attention deficit hyperactivity disorder and autism. Electroencephalograms showed continuous spike-and-wave during sleep. Genetic testing revealed a de novo mutation of the CNKSR2 gene (c.2185C>T, p.Arg729Ter) in the child that was not detected in the parents. Therefore, the child was diagnosed with X-linked epilepsy aphasia syndrome. Deletion of the CNKSR2 gene has been rarely reported in epilepsy aphasia syndrome, but no de novo mutation has been found in this gene. This report not only adds to the spectrum of epilepsy aphasia syndrome but also helps clinicians in diagnosis and genetic counseling.
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Affiliation(s)
- Ying Sun
- Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong Province, China
| | - Yi-Dan Liu
- Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong Province, China
| | - Zhi-Feng Xu
- First Hospital of Handan, Handan 056002, Hebei Province, China
| | - Qing-Xia Kong
- Department of Neurology, Affiliated Hospital of Jining Medical University, Jining 272000, Shandong Province, China
| | - Yan-Ling Wang
- Department of Neurology, Affiliated Hospital of Jining Medical University, Jining 272000, Shandong Province, China
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Abstract
The clinical presentation of patients with epileptic encephalopathies can be heterogenous. When attempting to classify a patient's epilepsy syndrome, challenges can arise due to the phenotypic overlap of various epilepsies as well as the different presentations of mutations within the same gene. Genetic testing can be most helpful in evaluation of children with features spanning several epilepsy phenotypes. In this case, we report on a boy with an epileptic encephalopathy found to have a previously unreported mutation in a recently described gene.
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Gong P, Xue J, Qian P, Yang H, Liu X, Cai L, Bian K, Yang Z. Scalp-recorded high-frequency oscillations in childhood epileptic encephalopathy with continuous spike-and-wave during sleep with different etiologies. Brain Dev 2018; 40:299-310. [PMID: 29307466 DOI: 10.1016/j.braindev.2017.12.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 12/19/2017] [Accepted: 12/19/2017] [Indexed: 10/18/2022]
Abstract
OBJECTIVE To investigate high-frequency oscillations (HFOs) in epileptic encephalopathy with continuous spike-and-wave during sleep (CSWS) with different etiologies. METHODS Twenty-one CSWS patients treated with methylprednisolone were divided into structural group and genetic/unknown group. Comparisons were made between the two etiological groups: selected clinical variables including gender, age parameters, seizure frequencies and antiepileptic drugs; distribution of HFOs in pre-methylprednisolone electroencephalography (EEG) and percentage changes of HFOs and spikes after methylprednisolone treatment. RESULTS There were 7 patients (33%) in structural group and 14 patients (68%) in genetic/unknown group. No significant difference was found between the two groups regarding selected clinical variables. HFOs were found in 12 patients in pre-methylprednisolone EEG. The distribution of HFOs was focal and accordant with lesions in 5 of structural group, and it was also focal but in different brain regions in 7 of genetic/unknown group. The percentage reduction of total HFOs and spikes was 81% (158/195) and 19% (1956/10,037) in structural group, while 98% (315/323) and 55% (6658/12,258) in genetic/unknown group after methylprednisolone treatment. CONCLUSION The etiologies had no distinct correlation with some clinical characteristics in CSWS. HFOs recorded on scalp EEG might not only be used as makers of seizure-onset zone (SOZ), but also have association with functional disruption of brain networks. Both HFOs and spikes reduced more in genetic/unknown patients than that in structural patients after methylprednisolone treatment and HFOs were more sensitive to treatment than spikes.
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Affiliation(s)
- Pan Gong
- Department of Pediatrics, Peking University First Hospital, No.1, Xi'anmen Street, Xicheng District, Beijing 100034, China
| | - Jiao Xue
- Department of Pediatrics, Peking University First Hospital, No.1, Xi'anmen Street, Xicheng District, Beijing 100034, China
| | - Ping Qian
- Department of Pediatrics, Peking University First Hospital, No.1, Xi'anmen Street, Xicheng District, Beijing 100034, China
| | - Haipo Yang
- Department of Pediatrics, Peking University First Hospital, No.1, Xi'anmen Street, Xicheng District, Beijing 100034, China
| | - Xiaoyan Liu
- Department of Pediatrics, Peking University First Hospital, No.1, Xi'anmen Street, Xicheng District, Beijing 100034, China
| | - Lixin Cai
- Department of Pediatrics, Peking University First Hospital, No.1, Xi'anmen Street, Xicheng District, Beijing 100034, China
| | - Kaigui Bian
- Institude of Network Computing and Information Systems, Peking University, No.5, Yiheyuan Street, Haidian District, Beijing 100871, China
| | - Zhixian Yang
- Department of Pediatrics, Peking University First Hospital, No.1, Xi'anmen Street, Xicheng District, Beijing 100034, China.
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Bhat S, Ming X, Dekermenjian R, Chokroverty S. Continuous spike and wave in slow-wave sleep in a patient with Rett syndrome and in a patient with Lhermitte-Duclos syndrome and neurofibromatosis 1. J Child Neurol 2014; 29:NP176-80. [PMID: 24262385 DOI: 10.1177/0883073813509888] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Continuous spike and wave in slow-wave sleep (CSWS) is an electroencephalographic (EEG) pattern characterized by generalized spike-wave discharges occurring for at least 85% of non-rapid eye movement (non-REM) sleep, with marked attenuation during rapid eye movement (REM) sleep. It has been described in a large number of structural and nonstructural neurologic conditions and is associated with epilepsy, behavioral disturbances, and severe neuropsychiatric impairment. We describe continuous spike and wave in slow-wave sleep in 2 patients (one with Rett syndrome and the other with Lhermitte-Duclos syndrome). To our knowledge, continuous spike and wave in slow-wave sleep has not been previously described in these conditions.
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Affiliation(s)
- Sushanth Bhat
- NJ Neuroscience Institute at JFK Medical Center/Seton Hall University, Edison, NJ, USA
| | - Xue Ming
- NJ Neuroscience Institute at JFK Medical Center/Seton Hall University, Edison, NJ, USA Department of Neurology and Neurosciences, New Jersey Medical School UMDNJ Newark, Newark, NJ, USA
| | - Rony Dekermenjian
- NJ Neuroscience Institute at JFK Medical Center/Seton Hall University, Edison, NJ, USA
| | - Sudhansu Chokroverty
- NJ Neuroscience Institute at JFK Medical Center/Seton Hall University, Edison, NJ, USA
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