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JOURNAL ARTICLE
Amber Postma, Crista A Minderhoud, Wim M Otte, Floor E Jansen, W B Gunning, Judith S Verhoeven, Marian J Jongmans, Janneke R Zinkstok, Eva H Brilstra
BACKGROUND: A pathogenic variant in SCN1A can result in a spectrum of phenotypes, including Dravet syndrome (DS) and genetic epilepsy with febrile seizures plus (GEFS + ) syndrome. Dravet syndrome (DS) is associated with refractory seizures, developmental delay, intellectual disability (ID), motor impairment, and challenging behavior(1,2). GEFS + is a less severe phenotype in which cognition is often normal and seizures are less severe. Challenging behavior largely affects quality of life of patients and their families...
March 20, 2024: Epilepsy & Behavior: E&B
#42
JOURNAL ARTICLE
Alwan Iktimal, Dennis D Spencer, Rafeed Alkawadri
Using 6-minute free-running intracranial-electroencephalogram (icEEG) during sleep, an optimized multilayer perceptron (MLP) neural network accurately maps the sensorimotor cortex (SM) and identifies the anterior lip of the central sulcus (CS) in intractable epilepsy patients. We calculated 6 performance metrics to evaluate the MLP's efficacy: accuracy, area under the curve (AUC), recall, precision, F1-scores, and specificity. Each layer had 4 neurons with hyperbolic TanH activation function and 4 with Gaussian distribution function...
March 20, 2024: Annals of Neurology
#43
REVIEW
Oliver Henning, Rune Markhus, Eva Elisabeth Jansen Dornish, Konstantin Hrisimirov Kostov, Fridny Heimisdottir, Karl O Nakken
In some forms of epilepsy, the seizures occur almost exclusively during sleep. This is particularly the case with hypermotor frontal lobe seizures. Clinically it can be difficult to distinguish such seizures from parasomnias and psychogenic non-epileptic seizures. This clinical review article aims to highlight the importance of making the correct diagnosis, as these conditions require completely different treatment.
March 19, 2024: Tidsskrift for Den Norske Lægeforening: Tidsskrift for Praktisk Medicin, Ny Række
#44
JOURNAL ARTICLE
Juliana Ribeiro-Constante, Alba Tristán-Noguero, Fernando Francisco Martínez Calvo, Salvador Ibañez-Mico, José Luis Peña Segura, José Miguel Ramos-Fernández, María Del Carmen Moyano Chicano, Rafael Camino León, Víctor Soto Insuga, Elena González Alguacil, Carlos Valera Dávila, Alberto Fernández-Jaén, Laura Plans, Ana Camacho, Nuria Visa-Reñé, María Del Pilar Martin-Tamayo Blázquez, Fernando Paredes-Carmona, Itxaso Marti-Carrera, Aránzazu Hernández-Fabián, Meritxell Tomas Davi, Merce Casadesus Sanchez, Laura Cuesta Herraiz, Patricia Fuentes Pita, Teresa Bermejo Gonzalez, Mar O'Callaghan, Federico Felipe Iglesias Santa Polonia, María Rosario Cazorla, María Teresa Ferrando Lucas, Antonio González-Meneses, Júlia Sala-Coromina, Alfons Macaya, Amaia Lasa-Aranzasti, Anna Ma Cueto-González, Francisca Valera Párraga, Jaume Campistol Plana, Mercedes Serrano, Xenia Alonso, Diego Del Castillo-Berges, Marc Schwartz-Palleja, Sofía Illescas, Alia Ramírez Camacho, Oscar Sans Capdevila, Angeles García-Cazorla, Àlex Bayés, Itziar Alonso-Colmenero
SYNGAP1 haploinsufficiency results in a developmental and epileptic encephalopathy (DEE) causing generalized epilepsies accompanied by a spectrum of neurodevelopmental symptoms. Concerning interictal epileptiform discharges (IEDs) in electroencephalograms (EEG), potential biomarkers have been postulated, including changes in background activity, fixation-off sensitivity (FOS) or eye closure sensitivity (ECS). In this study we clinically evaluate a new cohort of 36 SYNGAP1-DEE individuals. Standardized questionnaires were employed to collect clinical, electroencephalographic and genetic data...
2024: Frontiers in Cell and Developmental Biology
#45
JOURNAL ARTICLE
Péter Halász, Péter Simor, Anna Szűcs
We consider the disorders of arousal and sleep-related hypermotor epilepsy as genetic twin-conditions, one without, one with epilepsy. They share an augmented arousal-activity during NREM sleep with sleep-wake dissociations, culminating in sleep terrors and sleep-related hypermotor seizures with similar symptoms. The known mutations underlying the two spectra are different, but there are multifold population-genetic-, family- and even individual (the two conditions occurring in the same person) overlaps supporting common genetic roots...
2024: Psychiatria Hungarica: A Magyar Pszichiátriai Társaság Tudományos Folyóirata
#46
Valerio Simonelli, Anna Rita Ferrari, Roberta Battini, Paola Brovedani, Emanuele Bartolini
INTRODUCTION: Pathogenic variants of the MTOR gene result in the Smith-Kingsmore syndrome, whose phenotypical spectrum includes facial dysmorphisms and neurological features. Expressivity is variable, patients exhibit a combination of intellectual disability, macrocephaly and epilepsy. The diagnosis can be missed, failing to detect the causative pathogenic mutation in patients with somatic mosaicism or even skipping to analyze MTOR when the phenotype is not completely expressed. CASE STUDY: Herein, we report two children harboring the same MTOR recurring mutation (c...
2024: Clinical Neurophysiology Practice
#47
JOURNAL ARTICLE
Pirgit Meritam Larsen, Stephan Wüstenhagen, Daniella Terney, Elena Gardella, Harald Aurlien, Sándor Beniczky
OBJECTIVE: Recording seizures on video-EEG has a high diagnostic value. However, bilateral convulsive seizures constitute a risk for the patients. Our aim was to investigate the diagnostic yield and associated risks of provocation methods in short-term video-EEGs. METHODS: We extracted data on seizures and provocation methods from a large database of short-term video-EEGs with standardized annotations using SCORE (Standardized Computer-based Organized reporting of EEG)...
March 16, 2024: Epileptic Disorders: International Epilepsy Journal with Videotape
#48
JOURNAL ARTICLE
Alexandra N Petrucci, Allysa R Jones, Benjamin L Kreitlow, Gordon F Buchanan
Over one-third of patients with epilepsy will develop refractory epilepsy and continue to experience seizures despite medical treatment. These patients are at the greatest risk for sudden unexpected death in epilepsy. The precise mechanisms underlying sudden unexpected death in epilepsy are unknown, but cardiorespiratory dysfunction and arousal impairment have been implicated. Substantial circumstantial evidence suggests serotonin is relevant to sudden unexpected death in epilepsy as it modulates sleep/wake regulation, breathing and arousal...
2024: Brain communications
#49
JOURNAL ARTICLE
Ye Xu, Qinyue Wang, Yufei Zhang, Yuncan Chen, Lan Xu, Guoxing Zhu, Chunlai Ma, Xunyi Wu
BACKGROUND: There is currently a lack of studies examining the long-term therapeutic effectiveness of the third-generation anti-sezure medication, perampanel (PER), for focal-onset seizures (FOS), particularly in Chinese patients with sleep-related epilepsy (SRE). Additionally, the appropriate dosage, plasma concentration, and the relationship between dose and plasma concentration of PER in Chinese patients are still uncertain. METHODS: A prospective, single-center, 24-month observational study was conducted in patients diagnosed with FOS, with a focus on patients with SRE...
2024: Frontiers in Neurology
#50
JOURNAL ARTICLE
Geraldine Leader, Chloe Killeen, Sally Whelan, Rory Coyne, Megan Tones, Arlene Mannion
BACKGROUND: Angelman Syndrome (AS) is a rare genetic disorder characterised by hyperactivity, overexcitability, developmental delays, and lack of speech. METHODS: This study used secondary data analysis to investigate sleep disturbances in children and adolescents (n = 212) who are enrolled in the Global Angelman Syndrome Registry. Participants were divided into two groups based on the presence or absence of sleep disturbance. The cut-off score of 40 on the Sleep Disturbance Scale for Children was used to indicate the presence or absence of sleep disturbances...
March 7, 2024: Sleep Medicine
#51
Selahattin Ayas
UNLABELLED: Paroxysmal Hypnogenic Dyskinesia (PHD) is a rare movement disorder characterized by involuntary movements, including chorea, athetosis, ballismus, and dystonia, which occur during the Non-Rapid Eye Movement (NREM) sleep stage. Therefore, the diagnosis of PHD is highly crucial due to the presence of differential diagnoses such as epilepsy and other sleep disorders. Although numerous mutations have been identified, the etiology of PHD, which arises from dysregulation in basal ganglia functions, remains unclear...
January 2024: Sleep and Biological Rhythms
#52
JOURNAL ARTICLE
Kimberly Wiltrout, Elise Brimble, Annapurna Poduri
OBJECTIVE: To delineate the comprehensive phenotypic spectrum of SYNGAP1-related disorder in a large patient cohort aggregated through a digital registry. METHODS: We obtained de-identified patient data from an online registry. Data were extracted from uploaded medical records. We reclassified all SYNGAP1 variants using American College of Medical Genetics criteria and included patients with pathogenic/likely pathogenic (P/LP) single nucleotide variants or microdeletions incorporating SYNGAP1...
March 12, 2024: Epilepsia
#53
JOURNAL ARTICLE
Jun Feng, Liya Zhang, Jihong Tang, Bingbing Zhang, Xiao Xiao, Xiaoyan Shi
OBJECTIVE: To evaluate the efficacy and safety of lacosamide (LCM) monotherapy in the treatment of self-limited epilepsy with centrotemporal spikes (SeLECTS). METHODS: In this study, 89 children with SeLECTS who were treated with LCM monotherapy in the Children's Hospital Affiliated to Soochow University from June 2019 to June 2021 were included. Clinical seizures and spike wave index (SWI) on video EEG during slow-wave sleep were evaluated before and after treatment...
2024: Neuropsychiatric Disease and Treatment
#54
JOURNAL ARTICLE
Anna Fetta, Francesco Toni, Ilaria Pettenuzzo, Emilia Ricci, Alessandro Rocca, Caterina Gambi, Luca Soliani, Veronica Di Pisa, Silvia Martini, Giacomo Sperti, Valeria Cagnazzo, Patrizia Accorsi, Emanuele Bartolini, Domenica Battaglia, Pia Bernardo, Maria Paola Canevini, Anna Rita Ferrari, Lucio Giordano, Chiara Locatelli, Margherita Mancardi, Alessandro Orsini, Tommaso Pippucci, Dario Pruna, Anna Rosati, Agnese Suppiej, Sara Tagliani, Alessandro Vaisfeld, Aglaia Vignoli, Kosuke Izumi, Ian Krantz, Duccio Maria Cordelli
BACKGROUND: Pallister-Killian syndrome (PKS) is a rare genetic disorder caused by mosaic tetrasomy of 12p with wide neurological involvement. Intellectual disability, developmental delay, behavioral problems, epilepsy, sleep disturbances, and brain malformations have been described in most individuals, with a broad phenotypic spectrum. This observational study, conducted through brain MRI scan analysis on a cohort of patients with genetically confirmed PKS, aims to systematically investigate the neuroradiological features of this syndrome and identify the possible existence of a typical pattern...
March 8, 2024: Orphanet Journal of Rare Diseases
#55
JOURNAL ARTICLE
Karim Mithani, Simeon M Wong, Hrishikesh Suresh, Ivanna Yau, Elizabeth N Kerr, Mary Lou Smith, Elizabeth Donner, George M Ibrahim
The epilepsy monitoring unit (EMU) is a complex and dynamic operational environment, where the cognitive and behavioural consequences of medical and environmental changes often go unnoticed. The psychomotor vigilance task (PVT) has been used to detect changes in cognition and behaviour in numerous contexts, including among astronauts on spaceflight missions, pilots, and commercial drivers. Here, we piloted serial point-of-care administration of the PVT in children undergoing invasive monitoring in the EMU. Seven children completed the PVT throughout their hospital admission and their performance was associated with daily seizure counts, interictal epileptiform discharges, number of antiseizure medications (ASMs) administered, and sleep quality metrics...
March 7, 2024: Epilepsy & Behavior: E&B
#56
JOURNAL ARTICLE
Yuying Li, Yijie Li, Hao Li, Zhiliang Hong, Jiawei Xu
Non-invasive, closed-loop brain modulation offers an accessible and cost-effective means of evaluating and modulating one's mental and physical well-being, such as Parkinson's disease, epilepsy, and sleep disorders. However, wearable EEG systems pose significant challenges for the analog front-end (AFE) circuits in view of μV-level EEG signals of interest, multiple sources of interference, and ill-defined skin contact. This paper presents a direct-digitization AFE tailored for dry-electrode scalp EEG recording, characterized by wide input dynamic range (DR) and high input impedance...
March 8, 2024: IEEE Transactions on Biomedical Circuits and Systems
#57
REVIEW
J Helen Cross, Arturo Benítez, Jeannine Roth, J Scott Andrews, Drishti Shah, Emma Butcher, Aimee Jones, Joseph Sullivan
Fully elucidating the burden that Lennox-Gastaut syndrome (LGS) places on individuals with the disease and their caregivers is critical to improving outcomes and quality of life (QoL). This systematic literature review evaluated the global burden of illness of LGS, including clinical symptom burden, care requirements, QoL, comorbidities, caregiver burden, economic burden, and treatment burden (PROSPERO ID: CRD42022317413). MEDLINE, Embase, and the Cochrane Library were searched for articles that met predetermined criteria...
March 8, 2024: Epilepsia
#58
JOURNAL ARTICLE
Itay Tokatly Latzer, Mariarita Bertoldi, Nenad Blau, Melissa L DiBacco, Sarah H Elsea, Àngels García-Cazorla, K Michael Gibson, Andrea L Gropman, Ellen Hanson, Carolyn Hoffman, Kathrin Jeltsch, Natalia Juliá-Palacios, Ina Knerr, Henry H C Lee, Patrizia Malaspina, Alice McConnell, Thomas Opladen, Mari Oppebøen, Alexander Rotenberg, Mark Walterfang, Lee Wang-Tso, Ron A Wevers, Jean-Baptiste Roullet, Phillip L Pearl
Succinic semialdehyde dehydrogenase deficiency (SSADHD) (OMIM #271980) is a rare autosomal recessive metabolic disorder caused by pathogenic variants of ALDH5A1. Deficiency of SSADH results in accumulation of γ-aminobutyric acid (GABA) and other GABA-related metabolites. The clinical phenotype of SSADHD includes a broad spectrum of non-pathognomonic symptoms such as cognitive disabilities, communication and language deficits, movement disorders, epilepsy, sleep disturbances, attention problems, anxiety, and obsessive-compulsive traits...
March 4, 2024: Molecular Genetics and Metabolism
#59
REVIEW
Jinfeng Liu, Jia Zhang, Yajun Shen, Yang Li, Huan Luo, Jing Gan
OBJECTIVE: To explore the clinical characteristics and genetic basis for a child with global developmental delay and autism. METHODS: A child who had presented at West China Second University Hospital of Sichuan University on April 13, 2021 was selected as the study subject. Clinical manifestations, laboratory examination and result of genetic testing were analyzed. RESULTS: The main symptoms of the child had included cognitive, language and motor delay, autism and epilepsy...
March 10, 2024: Zhonghua Yi Xue Yi Chuan Xue za Zhi, Zhonghua Yixue Yichuanxue Zazhi, Chinese Journal of Medical Genetics
#60
REVIEW
Priyadarshini Mishra, Sajal Clarence Singh, Balamurugan Ramadass
Drug-resistant epilepsy (DRE) poses a significant global challenge, impacting the well-being of patients. Anti-epileptic drugs often fail to effectively control seizures in individuals with DRE. This condition not only leads to persistent seizures but also induces neurochemical imbalances, elevating the risk of sudden unexpected death in epilepsy and comorbidities. Moreover, patients experience mood and personality alterations, educational and vocational setbacks, social isolation, and cognitive impairments...
April 2024: World neurosurgery: X
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