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Drug resistant epilepsy

P Roldan-Ramos, L A Reyes-Figueroa, J Rumia, E Martinez-Lizana, A Donaire, M Carreno-Martinez
AIM: To describe clinical results and complications derived from vagal nerve stimulation therapy in drug resistant epileptic patients unsuitable for other surgical treatments, since the first implant in an epilepsy national referral centre. PATIENTS AND METHODS: A retrospective analysis of the patients implanted in our centre was held. Data related to baseline characteristics of their epilepsy and therapy complications was collected. RESULTS: 32 new implants in 31 patients are included, mean age of 34 years, 29...
November 1, 2016: Revista de Neurologia
Rumana Ahmad, Tahmeena Khan, Bilal Ahmad, Aparna Misra, Anil K Balapure
Tapeworms (cestodes) are segmented flatworms responsible for causing diseases that may prove fatal and difficult to treat in the absence of proper treatment and efficient drugs. Neurocysticercosis (NCC) is a common parasitic infection of the central nervous system and a major contributor to epilepsy caused by the metacestode (larva) of the human tapeworm Taenia solium, characterized by a range of pathological symptoms including epileptic seizures, headaches, and hydrocephalus. Cysticercosis is considered as a "biological imprint" of the socioeconomic development of a community in general and a country in particular...
October 24, 2016: Parasitology Research
Jun Takei, Ran Takei, Satoshi Nozuma, Keiichi Nakahara, Osamu Watanabe, Hiroshi Takashima
A 40-year-old man presented with a series of generalized tonic-clonic seizures after febrile illness. He developed status epilepticus and required mechanical ventilation with anesthetics. Steroid pulse, intravenous immunoglobulin, and immunoadsorption therapy were administrated, and the status epilepticus improved; however, drug-resistant seizures remained. Despite the use of several antiepileptic drugs, seizures frequently occurred. Additional administration of potassium bromide resulted in significant suppression of seizures...
October 21, 2016: Rinshō Shinkeigaku, Clinical Neurology
Dattatraya Muzumdar, Manoj Patil, Atul Goel, Sangeeta Ravat, Nina Sawant, Urvashi Shah
Mesial temporal lobe epilepsy is one of the commonest indications for epilepsy surgery. Presurgical evaluation for drug resistant epilepsy and identification of appropriate candidates for surgery is essential for optimal seizure freedom. The anatomy of mesial temporal lobe is complex and needs to be understood in the context of the advanced imaging, ictal and interictal Video_EEG monitoring, neuropsychology and psychiatric considerations. The completeness of disconnection of epileptogenic neural networks is paramount and is correlated with the extent of resection of the mesial temporal structures...
October 20, 2016: International Journal of Surgery
Marilena Vecchi, Carmen Barba, Debora De Carlo, Micol Stivala, Renzo Guerrini, Emilio Albamonte, Domiziana Ranalli, Domenica Battaglia, Giada Lunardi, Clementina Boniver, Benedetta Piccolo, Francesco Pisani, Gaetano Cantalupo, Giuliana Nieddu, Susanna Casellato, Silvia Cappanera, Elisabetta Cesaroni, Nelia Zamponi, Domenico Serino, Lucia Fusco, Alessandro Iodice, Filippo Palestra, Lucio Giordano, Elena Freri, Ilaria De Giorgi, Francesca Ragona, Tiziana Granata, Isabella Fiocchi, Stefania Maria Bova, Massimo Mastrangelo, Alberto Verrotti, Sara Matricardi, Elena Fontana, Davide Caputo, Francesca Darra, Bernardo Dalla Bernardina, Francesca Beccaria, Giuseppe Capovilla, Maria Pia Baglietto, Alessandra Gagliardi, Aglaia Vignoli, Maria Paola Canevini, Egle Perissinotto, Stefano Francione
OBJECTIVE: To describe the clinical, neuropsychological, and psychopathologic features of a cohort of children with a new diagnosis of symptomatic or presumed symptomatic focal epilepsy at time of recruitment and through the first month. The selected population will be followed for 2-5 years after enrollment to investigate the epilepsy course and identify early predictors of drug resistance. METHODS: In this observational, multicenter, nationwide study, children (age 1 month-12...
October 20, 2016: Epilepsia
Theresa Scholl, Angelika Mühlebner, Gerda Ricken, Victoria Gruber, Anna Fabing, Sharon Samueli, Gudrun Gröppel, Christian Dorfer, Thomas Czech, Johannes A Hainfellner, Avanita S Prabowo, Roy J Reinten, Lisette Hoogendijk, Jasper J Anink, Eleonora Aronica, Martha Feucht
Conventional antiepileptic drugs suppress the excessive firing of neurons during seizures. In drug-resistant patients, treatment failure indicates an alternative important epileptogenic trigger. Two epilepsy-associated pathologies show myelin deficiencies in seizure-related brain regions: Focal Cortical Dysplasia IIB (FCD) and cortical tubers in Tuberous Sclerosis Complex (TSC). Studies uncovering white matter-pathology mechanisms are therefore urgently needed to gain more insight into epileptogenesis, the propensity to maintain seizures, and their associated comorbidities such as cognitive defects...
October 17, 2016: Brain Pathology
Marivi Nabong Moen, Roar Fjær, El Hassan Hamdani, Jon K Laerdahl, Robin Johansen Menchini, Magnus Dehli Vigeland, Ying Sheng, Dag Erik Undlien, Bjørnar Hassel, Mustafa A Salih, Heba Y El Khashab, Kaja Kristine Selmer, Farrukh Abbas Chaudhry
Progressive myoclonus epilepsy is a heterogeneous group of disorders characterized by myoclonic and tonic-clonic seizures, ataxia and cognitive decline. We here present two affected brothers. At 9 months of age the elder brother developed ataxia and myoclonic jerks. In his second year he lost the ability to walk and talk, and he developed drug-resistant progressive myoclonus epilepsy. The cerebrospinal fluid level of glutamate was decreased while glutamine was increased. His younger brother manifested similar symptoms from 6 months of age...
October 14, 2016: Brain: a Journal of Neurology
Samuel Lapalme-Remis, Gregory D Cascino
PURPOSE OF REVIEW: This article discusses structural and functional neuroimaging findings in patients with seizures and epilepsy. The indications for neuroimaging in these patients and the potential diagnostic utility of these studies are presented. RECENT FINDINGS: Patients presenting with new seizures typically require urgent imaging to rule out a critical underlying cause. MRI is the structural neuroimaging procedure of choice in individuals with epilepsy. Specific epilepsy protocols should be considered to increase the diagnostic yield of neuroimaging in patients with structural lesions associated with focal or generalized seizures...
October 2016: Continuum: Lifelong Learning in Neurology
Luis E Bruno-Blanch, Luis Enrique
Despite the introduction of more than 15 third generation antiepileptic drugs to the market from 1990 to the moment, about one third of the epileptic patients still suffer from refractory of intractable epilepsy. Several hypotheses seek to explain the failure of drug treatments to control epilepsy symptoms in such patients. The most studied one proposes that drug resistance might be related with regional overactivity of efflux transporters from the ATP-Binding Cassette (ABC) superfamily at the blood-brain barrier and/or the epileptic foci in the brain...
October 13, 2016: Mini Reviews in Medicinal Chemistry
Alberto M Saibene, Elena Zambrelli, Carlotta Pipolo, Alberto Maccari, Giovanni Felisati, Elena Felisati, Francesca Furia, Aglaia Vignoli, Maria Paola Canevini, Enrico Alfonsi
Vagus nerve stimulation (VNS) is a useful tool for drug-resistant epilepsy, but it induces known laryngeal side effects, with a significant role on patients' quality of life. VNS patients may show persistent left vocal fold (LVF) palsy at rest and/or recurrent LVF adduction during stimulation. This study aims at electromyographically evaluating laryngeal muscles abnormalities in VNS patients. We compared endoscopic laryngeal evaluation data in six VNS patients with laryngeal muscle electromyography (LMEMG) carried out on the thyroarytenoid, cricothyroid, posterior cricoarytenoid, and cricopharyngeal muscles...
October 13, 2016: European Archives of Oto-rhino-laryngology
Valeria Peviani, Pina Scarpa, Alessio Toraldo, Gabriella Bottini
Neuropsychological assessment is critical in both diagnosis and prognosis of patients with epilepsy. Beyond electrophysiological and anatomical alterations, other factors including different ethnic-cultural and linguistic backgrounds might affect neuropsychological performance. Only a few studies considered migration and acculturation effects and they typically concerned nonclinical samples. The current study aimed at investigating the influence of ethnic background and time spent in Italy on a full neuropsychological battery administered to both Italian and foreign-born patients and at providing a brief interview for obtaining relevant information on each patient's transcultural and language-related history...
October 10, 2016: Epilepsy & Behavior: E&B
Camilo Gutierrez, Ali A Asadi-Pooya, Christopher T Skidmore, Steven D Tobochnik, Carla LoPinto-Khoury, Michael R Sperling
OBJECTIVES: The objective of this study was to describe the clinical characteristics and surgical outcome in patients with gelastic seizures without hypothalamic hamartoma. METHODS: We retrospectively reviewed all the video-EEG reports over a 5-year period (2007-2011) for the occurrence of the terms "laugh" or "giggle" in the text body. All the patients with at least one documented gelastic seizure at the epilepsy monitoring unit were studied. In patients who underwent epilepsy surgery, seizure outcomes were analyzed...
October 10, 2016: Epilepsy & Behavior: E&B
Emel Oğuz-Akarsu, Zeynep Aydin-Özemir, Nerses Bebek, Candan Gürses, Ayşen Gökyiğit, Betül Baykan
Status epilepticus (SE) is rarely described in patients with juvenile myoclonic epilepsy (JME), and little is known about its frequency, subtypes, and predictors and the prognosis of these patients. In this retrospective study, we aimed to analyze the incidence of SE in patients with JME and emphasize the risk factors and long-term outcome of SE in an epilepsy outpatient-based cohort. We included patients with JME with a history of predominant myoclonic seizures and at least one diagnostic EEG with normal background activity and bursts of typical ≥3-Hz generalized spike-polyspike and waves...
October 10, 2016: Epilepsy & Behavior: E&B
Alla Guekht, Maria Mizinova, Igor Kaimovsky, Oksana Danilenko, Elisa Bianchi, Ettore Beghi
OBJECTIVE: The objective of this study was to investigate prospectively the direct costs of epilepsy in Russia, taking a patient perspective and a bottom-up approach. METHODS: The study was conducted in adolescents and adults with epilepsy seen in the ambulatory services of a city hospital in Moscow. Patients were assigned to different prognostic categories: newly diagnosed epilepsy; epilepsy in remission for 2+years; epilepsy in remission for <2years or with occasional seizures; active, nondrug-resistant epilepsy; drug-resistant epilepsy; and drug-resistant epilepsy in surgical candidates...
October 10, 2016: Epilepsy & Behavior: E&B
Nicola Forte, Lucian Medrihan, Beatrice Cappetti, Pietro Baldelli, Fabio Benfenati
OBJECTIVE: The inhibition of glycolysis exerts potent antiseizure effects, as demonstrated by the efficacy of ketogenic and low-glucose/nonketogenic diets in the treatment of drug-resistant epilepsy. ATP-sensitive potassium (KATP ) channels have been initially identified as the main determinant of the reduction of neuronal hyperexcitability. However, a plethora of other mechanisms have been proposed. Herein, we report the ability of 2-deoxy-d-glucose (2-DG), a glucose analog that inhibits glycolytic enzymes, of potentiating γ-aminobutyric acid (GABA)ergic tonic inhibition via neurosteroid-mediated activation of extrasynaptic GABAA receptors...
October 13, 2016: Epilepsia
Katrina Ducis, Jian Guan, Michael Karsy, Robert J Bollo
Epilepsy is a common disease in the pediatric population, and the majority of cases are controlled with medications and lifestyle modification. For the children whose seizures are pharmacoresistant, continued epileptic activity can have a severely detrimental impact on cognitive development. Early referral of children with drug-resistant seizures to a pediatric epilepsy surgery center for evaluation is critical to achieving optimal patient outcomes. There are several components to a thorough presurgical evaluation, including a detailed medical history and physical examination, noninvasive testing including electroencephalogram, magnetic resonance imaging (MRI) of the brain, and often metabolic imaging...
July 2016: Translational pediatrics
Henning Dickten, Stephan Porz, Christian E Elger, Klaus Lehnertz
Epilepsy can be regarded as a network phenomenon with functionally and/or structurally aberrant connections in the brain. Over the past years, concepts and methods from network theory substantially contributed to improve the characterization of structure and function of these epileptic networks and thus to advance understanding of the dynamical disease epilepsy. We extend this promising line of research and assess-with high spatial and temporal resolution and using complementary analysis approaches that capture different characteristics of the complex dynamics-both strength and direction of interactions in evolving large-scale epileptic brain networks of 35 patients that suffered from drug-resistant focal seizures with different anatomical onset locations...
October 6, 2016: Scientific Reports
Evan J Hess, Kirsten A Moody, Alexandra L Geffrey, Sarah F Pollack, Lauren A Skirvin, Patricia L Bruno, Jan L Paolini, Elizabeth A Thiele
OBJECTIVE: Tuberous sclerosis complex (TSC) is an autosomal-dominant genetic disorder with highly variable expression. The most common neurologic manifestation of TSC is epilepsy, which affects approximately 85% of patients, 63% of whom develop treatment-resistant epilepsy. Herein, we evaluate the efficacy, safety, and tolerability of cannabidiol (CBD), a nonpsychoactive compound derived from the marijuana plant, as an adjunct to current antiepileptic drugs in patients with refractory seizures in the setting of TSC...
October 2016: Epilepsia
Chiara Pastori, Stefano Francione, Federica Pelle, Marco de Curtis, Vadym Gnatkovsky
A quantitative method was developed to map cortical areas responsive to cognitive tasks during intracerebral stereo-EEG recording sessions in drug-resistant patients candidate for epilepsy surgery. Frequency power changes were evaluated with a computer-assisted analysis in 7 patients during phonemic fluency tasks. All patients were right-handed and were explored with depth electrodes in the dominant frontal lobe. We demonstrate that fluency tasks enhance beta-gamma frequencies and reduce background activities in language network regions of the dominant hemisphere...
September 26, 2016: Brain and Language
P Garzon, L Lemelle, S Auvin
Childhood absence epilepsy (CAE) is a common pediatric epilepsy syndrome accounting for 10% of all pediatric epilepsies. The aim of this review is to provide an updated overview of this epilepsy syndrome to pediatricians. Most of the patients can be initially managed in private practice or in general pediatric settings. Absence seizures are the only seizure type observed at the time of diagnosis in these patients. An electroencephalogram recording and a clinical evaluation lead to the diagnosis. The underlying mechanisms are not yet fully understood...
September 24, 2016: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
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