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Sarah F Pollack, Olivia R Grocott, Kimberly A Parkin, Anna M Larson, Ronald L Thibert
Angelman syndrome (AS) is a neurogenetic imprinting disorder caused by loss of the maternally inherited Ube3a gene and is characterized by generalized epilepsy, limited expressive speech, sleep dysfunction, and movement disorders. Myoclonic seizures are often the first seizure type to appear, and myoclonic status, associated with developmental regression, may occur in the first few years of life. Additionally, there have been rare reports of prolonged episodes of myoclonus without electrographic correlate in adults with AS...
March 16, 2018: Epilepsy & Behavior: E&B
Michael Owen Kinney, Stephen J Hunt, Ciaran McKenna
INTRODUCTION: Paramedics are increasingly expected to take on wider roles in the management of epilepsy in the community by making nonconveyance decisions after patients have had seizures. Studies have identified barriers to the successful implementation of this clinical role. We sought to determine levels of confidence, training, perceived barriers, and self-identified learning needs and methods to address these needs regarding seizure management. METHODS AND MATERIALS: A questionnaire was developed by consensus and administered to 63 paramedic and prehospital clinicians at various mandatory training days occurring at the central headquarters of the regional ambulance service in Northern Ireland...
March 7, 2018: Epilepsy & Behavior: E&B
Sara Gasparini, Edoardo Ferlazzo, Giuseppe Pustorino, Michele Ascoli, Vittoria Cianci, Chiara Sueri, Silvio Calabrò, Mauro Campello, Emilio Africa, Antonio Gangemi, Paolo Versace, Umberto Aguglia
OBJECTIVE: The purpose of this case-control study is to evaluate the prevalence of occult temporal encephalomeningocele (OTE) in patients with temporal lobe epilepsy (TLE) of unknown etiology presenting to an epilepsy center, independently from drug sensitivity. METHODS: We studied 95 patients with TLE (51 female, mean age 49.4 ± 17.1 years) and 151 controls (88 female, mean age 54.1 ± 21.0 years) using a 1.5T brain MRI, including balanced steady-state gradient echo sequences, targeted to the temporal lobes...
March 2, 2018: Neurology
Xin Tong, Dongmei An, Markus Reuber, Qin Zhang, Dong Zhou
PURPOSE: This study is intended to provide an overview of diagnostic and treatment services for patients with psychogenic nonepileptic seizures (PNES) across China. METHODS: Using a questionnaire devised by the PNES Task Force of Neuropsychiatry Commission of the International League Against Epilepsy (ILAE), we conducted a survey among Chinese health professionals at the Sixth Advanced International Course: Clinical Epileptology. Descriptive analyses were performed...
January 31, 2018: Seizure: the Journal of the British Epilepsy Association
Sayra Catalina Coral Castro, Gislaine Verginia Baroni, William Alves Martins, André Luis Fernandes Palmini, Luísa Weber Bisol
OBJECTIVES: The objective of the study was to access the suicide risk (SR) in patients with refractory epilepsy and its association with temperament and sleep quality. METHODS: A total of 50 consecutive patients referred for epilepsy surgery evaluation in the Porto Alegre Epilepsy Surgery Program were included. All patients had a detailed neurologic and psychiatric evaluation, including video-electroencephalogram (VEEG), high-resolution magnetic ressonance imaging (MRI), and neuropsychologic assessment...
February 8, 2018: Epilepsy & Behavior: E&B
Wesley T Kerr, Emily A Janio, Chelsea T Braesch, Justine M Le, Jessica M Hori, Akash B Patel, Norma L Gallardo, Janar Bauirjan, Andrea M Chau, Eric S Hwang, Emily C Davis, Albert Buchard, David Torres-Barba, Shannon D'Ambrosio, Mona Al Banna, Andrew Y Cho, Jerome Engel, Mark S Cohen, John M Stern
OBJECTIVE: Psychogenic nonepileptic seizure (PNES) is a common diagnosis after evaluation of medication resistant or atypical seizures with video-electroencephalographic monitoring (VEM), but usually follows a long delay after the development of seizures, during which patients are treated for epilepsy. Therefore, more readily available diagnostic tools are needed for earlier identification of patients at risk for PNES. A tool based on patient-reported psychosocial history would be especially beneficial because it could be implemented in the outpatient clinic...
February 1, 2018: Epilepsy & Behavior: E&B
Johannes D Lang, David C Taylor, Burkhard S Kasper
In epilepsy, individual seizures can be triggered by a variety of external and internal stimuli. One of the most common trigger factors reported by patients is stress. However prevalent, stress-related triggering of episodes seems underappreciated in epilepsy for various reasons, and its misinterpretation often leads to other diagnoses, e.g., psychogenic nonepileptic seizures (PNES) or normal reactions. This article illustrates the significant role of stress as a seizure-provoking factor by referring to nine patient narratives...
February 1, 2018: Epilepsy & Behavior: E&B
Emily Brereton, Emily Fassi, Gabriel C Araujo, Jonathan Dodd, Aida Telegrafi, Sheel J Pathak, Marwan Shinawi
BACKGROUND: Dynamin 1 is a protein involved in the synaptic vesicle cycle, which facilitates the exocytosis of neurotransmitters necessary for normal signaling and development in the central nervous system. Pathogenic variants in DNM1 have been implicated in global developmental delay (DD), severe intellectual disability (ID), and notably, epileptic encephalopathy. All previously reported DNM1 pathogenic variants causing this severe phenotype occur in the GTPase and Middle domains of the dynamin 1 protein...
February 4, 2018: Molecular Genetics & Genomic Medicine
Jerzy P Szaflarski, Jane B Allendorfer, Rodolphe Nenert, W Curt LaFrance, Helen I Barkan, Jennifer DeWolfe, Sandipan Pati, Ashley E Thomas, Lawrence Ver Hoef
Studies of emotion processing are needed to better understand the pathophysiology of psychogenic nonepileptic seizures (PNES). We examined the differences in facial emotion processing between 12 patients with PNES, 12 patients with temporal lobe epilepsy (TLE), and 24 matched healthy controls (HCs) using fMRI with emotional faces task (EFT) (happy/sad/fearful/neutral) and resting state connectivity. Compared with TLE, patients with PNES exhibited increased fMRI response to happy, neutral, and fearful faces in visual, temporal, and/or parietal regions and decreased fMRI response to sad faces in the putamen bilaterally...
February 2018: Epilepsy & Behavior: E&B
Katiuscia Martinello, Miriam Sciaccaluga, Roberta Morace, Addolorata Mascia, Antonietta Arcella, Vincenzo Esposito, Sergio Fucile
OBJECTIVE: γ-Aminobutyric acid (GABA) is the major inhibitory neurotransmitter in adult central nervous system, and profound alterations of GABA receptor functions are linked to temporal lobe epilepsy (TLE). Here we describe the functional relationships between GABA receptors type B (GABAB R) and type A (GABAA R) in human temporal cortex and how TLE affects this aspect of GABAergic signaling. METHODS: Miniature inhibitory postsynaptic currents (mIPSCs) were recorded by patch-clamp techniques from human L5 pyramidal neurons in slices from temporal cortex tissue obtained from surgery...
December 28, 2017: Epilepsia
Gholam K Motamedi
No abstract text is available yet for this article.
November 24, 2017: Epilepsy & Behavior: E&B
Benjamin Tolchin, Barbara A Dworetzky, Gaston Baslet
We conducted a prospective cohort study, examining long-term adherence with psychiatric treatment among patients with psychogenic nonepileptic seizures (PNES). Subjects diagnosed with documented PNES were scheduled for 4 psychiatric visits. Survival analysis was performed, and covariates were assessed for association with time to nonadherence using Cox proportional hazard regression analysis. One hundred twenty-three subjects were recruited and followed for up to 17 months. Eighty percent of subjects attended the first outpatient visit, 42% attended the second, 24% attended the third, and only 14% remained adherent through the fourth visit...
January 2018: Epilepsia
Ayham M Alkhachroum, Haifa Al-Abri, Alok Sachdeva, Sarita Maturu, Jennifer Waldron, Han Wang, Macym Rizvi, Guadalupe Fernandez-Baca Vaca, Hans O Lüders
PURPOSE: Generalized periodic discharges (GPDs) with a triphasic morphology have been associated with nonepileptic encephalopathies. We conducted the study to assess the reliability in which electroencephalographers can differentiate triphasic from nontriphasic periodic discharges and to evaluate for the presence of electroencephalogram and clinical characteristics that are associated with a higher risk of seizures. METHODS: We studied prospectively 92 patients between May 2016 and February 2017...
March 2018: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
Mahendra Javali, Purushottam Acharya, Shripal Shah, Rohan Mahale, Pushparaja Shetty, Srinivasa Rangasetty
Introduction: Review of literature revealed very limited studies considering a combination of serum prolactin (PRL) and serum creatine kinase (CK) as markers for differentiating epileptic and psychogenic nonepileptic seizures (PNES). Therefore, in the present study, we analyzed the role of serum PRL and serum CK, individually and in combination. Methodology: This prospective study was conducted in a tertiary care medical teaching hospital over a period of 18 months...
October 2017: Journal of Neurosciences in Rural Practice
Rajesh Benny, Vyankatesh Bolegave, Sameer Sadavarte, Vinayak Khatav
No abstract text is available yet for this article.
October 2017: Annals of Indian Academy of Neurology
Lorna Myers, Robert Trobliger, Kirsty Bortnik, Marcelo Lancman
OBJECTIVE: The objective of the study was to determine whether male and female populations of patients with psychogenic nonepileptic seizures (PNES) differ, in terms of demographic, social/clinical, and etiological factors as well as psychological measures. BACKGROUND: Psychogenic nonepileptic seizures are overrepresented by females; therefore, information about PNES in males is limited. Only a handful of studies have examined PNES and gender, and of those, one was a literature review and with the exception of two, most have had small sample sizes...
January 2018: Epilepsy & Behavior: E&B
Janina Kamm, Laura L Boles Ponto, Ken Manzel, Owen J Gaasedelen, Yasunori Nagahama, Taylor Abel, Daniel Tranel
OBJECTIVE: The objective of this study was to determine whether preoperative [18 F]fludeoxyglucose (FDG)-positron emission tomography (PET) asymmetry in temporal lobe metabolism predicts neuropsychological and seizure outcomes after temporal lobectomy (TL). METHODS: An archival sample of 47 adults with unilateral temporal lobe epilepsy who underwent TL of their language-dominant (29 left, 1 right) or nondominant (17 right) hemisphere were administered neuropsychological measures pre- and postoperatively...
January 2018: Epilepsy & Behavior: E&B
Paula Gardiner, Lindsey MacGregor, Alan Carson, Jon Stone
Functional neurological disorders (FND)-also called psychogenic, nonorganic, conversion, and dissociative disorders-constitute one of the commonest problems in neurological practice. An occupational therapist (OT) is commonly involved in management, but there is no specific literature or guidance for these professionals. Classification now emphasizes the importance of positive diagnosis of FND based on physical signs, more than psychological features. Studies of mechanism have produced new clinical and neurobiological ways of thinking about these disorders...
November 27, 2017: CNS Spectrums
Julia L Doss, Sigita Plioplys
Psychogenic nonepileptic seizures is a complicated biopsychosocial disorder with significant morbidity and high cost in children's social, emotional, family, and academic functioning as well as health care service utilization. Misdiagnosis and diagnostic delay, resulting from both lack of access to approved standards for diagnosing and service providers comfortable with diagnosing and treating this disorder, impact prognosis. Treatment in close proximity to symptom onset is thought to provide the best chance for remission...
January 2018: Child and Adolescent Psychiatric Clinics of North America
Coraline Hingray, Wissam El-Hage, Rod Duncan, David Gigineishvili, Kousuke Kanemoto, W Curt LaFrance, Alejandro de Marinis, Ravi Paul, Chrisma Pretorius, José F Téllez Zenteno, Hannah Wiseman, Markus Reuber
OBJECTIVE: Studies from a small number of countries suggest that patients with psychogenic nonepileptic seizures (PNES) have limited access to diagnostic and treatment services. The PNES Task Force of the International League Against Epilepsy (ILAE) carried out 2 surveys to explore the diagnosis and treatment of PNES around the world. METHODS: A short survey (8 questions) was sent to all 114 chapters of the ILAE. A longer survey (36 questions) was completed by healthcare professionals who see patients with seizures...
November 20, 2017: Epilepsia
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