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epilepsy review

Chang-Ching Wei, Ji-Nan Sheu, Jung-Tung Liu, Sheng-Hui Yang, I-Ching Chou, Jeng-Dau Tsai
BACKGROUND: Seizures in tuberous sclerosis complex (TSC) tend to be intractable over time and become a subsequent psychological burden for the patients. The purpose of the current study was to describe the onset, phenotype, and factors associated with seizure remission in patients with TSC. METHODS: Patients diagnosed with TSC between 2009 and 2015 completed a questionnaire interview and underwent a systematic evaluation, including a medical review of their epilepsy history and neurobehavioral disorder assessment...
March 15, 2018: Journal of the Chinese Medical Association: JCMA
Nazia Karsan, Eric B Gonzales, Gregory Dussor
Acid-sensing ion channels (ASICs) are a family of ion channels, consisting of four members; ASIC1 to 4. These channels are sensitive to changes in pH and are expressed throughout the central and peripheral nervous systems-including brain, spinal cord, and sensory ganglia. They have been implicated in a number of neurological conditions such as stroke and cerebral ischemia, traumatic brain injury, and epilepsy, and more recently in migraine. Their expression within areas of interest in the brain in migraine, such as the hypothalamus and PAG, their demonstrated involvement in preclinical models of meningeal afferent signaling, and their role in cortical spreading depression (the electrophysiological correlate of migraine aura), has enhanced research interest into these channels as potential therapeutic targets in migraine...
March 16, 2018: Neurotherapeutics: the Journal of the American Society for Experimental NeuroTherapeutics
Rodrigo Vargas, Lucas Beltrán, Rafael Lizama, Gabriela Reyes Valenzuela, Roberto Caraballo
PURPOSE: To present a retrospective study of 13 children with benign epilepsy with centrotemporal spikes (BECTS), also known as benign rolandic epilepsy (BRE), associated with generalized spikes and waves as the only EEG manifestation at onset. METHOD: Charts of children with typical clinical criteria of BRE electroclinically followed-up between February 2000 and February 2015 were reviewed. RESULTS: Among 309 patients who met the electroclinical criteria of BRE, we identified 13 children who presented with the typical clinical manifestations but who, on the EEG, only had generalized paroxysms at onset that continued along the course of the syndrome...
March 9, 2018: Seizure: the Journal of the British Epilepsy Association
Albena Vassileva, Dorien van Blooijs, Frans Leijten, Geertjan Huiskamp
The aim of this review is to evaluate whether open-loop or closed-loop neocortical electrical stimulation should be the preferred approach to manage seizures in intractable epilepsy. Twenty cases of open-loop neocortical stimulation with an implanted device have been reported, in 5 case studies. Closed-loop stimulation with an implanted device has been investigated in a larger number of patients in the RNS System clinical trials. With 230 patients enrolled at the start of the Long-term Treatment Trial, 115 remained at the last reported follow-up...
February 19, 2018: Epilepsy Research
Eimer Maloney, Ronan N McGinty, Daniel J Costello
PURPOSE: Reporting of 'real-world' data on efficacy and tolerability of antiepileptic medications helps to inform physicians on how newer medications perform in the clinical setting, outside of the strict regimens of clinical trials. We report our experience of prescribing lacosamide monotherapy to a diverse range of patients at our epilepsy centre. METHODS: We performed a single-centre, retrospective review of all patients who had been prescribed lacosamide monotherapy over the last 8 years...
March 8, 2018: Epilepsy Research
Marija Bošnjak Pašić, Emina Horvat Velić, Luka Fotak, Hanna Pašić, Azijada Srkalović Imširagić, Davorka Milat, Helena Šarac, Sarah Bjedov, Željka Petelin GadŽe
French expression standing for the phrase "already seen" is a déjà vu. It is thought that as much as 97% of the population have experienced déjà vu at least once in their lifetime and 67% experience it regularly. The explanations of this phenomenon in novels and poems include reincarnation, dreams, organic factors, and unconscious memories. In this narrative review connection between déjà vu and various other conditions has been mentioned: false memories, temporal lobe epilepsy and other neurological conditions...
March 2018: Psychiatria Danubina
Philippe Desmarais, Catherine Miville, Ángela Milán-Tomás, Quoc Dinh Nguyen, Carmen Ojeda-López, Mario Masellis, Sandra E Black, Danielle Molinari Andrade, Nathan Herrmann
OBJECTIVES: To analyze age representation trends over time in antiepileptic drug (AED) trials and to assess trial design elements as possible barriers to enrollment of elderly patients. MATERIALS AND METHODS: We searched MEDLINE, EMBASE, and PsycINFO, and meta-analyzed demographic data of cohorts enrolled in randomized controlled trials (RCTs) of AEDs published since 1991. Data analysis included trends of age representation over time and trial design elements associated with average age of enrolled cohorts...
March 6, 2018: Epilepsy Research
Vanessa Lin Lin Lee, Brandon Kar Meng Choo, Yin-Sir Chung, Uday P Kundap, Yatinesh Kumari, Mohd Farooq Shaikh
Metabolic epilepsy is a metabolic abnormality which is associated with an increased risk of epilepsy development in affected individuals. Commonly used antiepileptic drugs are typically ineffective against metabolic epilepsy as they do not address its root cause. Presently, there is no review available which summarizes all the treatment options for metabolic epilepsy. Thus, we systematically reviewed literature which reported on the treatment, therapy and management of metabolic epilepsy from four databases, namely PubMed, Springer, Scopus and ScienceDirect...
March 15, 2018: International Journal of Molecular Sciences
A Yu Lubnin
We present an analytical review of various neurosurgical interventions in conscious patients. An analysis of the literature indicates growing interest in this problem. Craniotomy in conscious patients has been extensively used in resection of space-occupying cerebral lesions in the eloquent hemispheric areas and in epilepsy surgery. In recent years, there have been a number of reports on interventions in conscious patients with other neurosurgical pathologies, which may be regarded as a new emerging tendency in neurosurgery and neuroanesthesiology...
2018: Zhurnal Voprosy Neĭrokhirurgii Imeni N. N. Burdenko
Wei-En J Tseng, Siew-Na Lim, Lu-An Chen, Shuo-Bin Jou, Hsiang-Yao Hsieh, Mei-Yun Cheng, Chun-Wei Chang, Han-Tao Li, Hsing-I Chiang, Tony Wu
Whether the cognitive processing of music and speech relies on shared or distinct neuronal mechanisms remains unclear. Music and language processing in the brain are right and left temporal functions, respectively. We studied patients with musicogenic epilepsy (ME) that was specifically triggered by popular songs to analyze brain hyperexcitability triggered by specific stimuli. The study included two men and one woman (all right-handed, aged 35-55 years). The patients had sound-triggered left temporal ME in response to popular songs with vocals, but not to instrumental, classical, or nonvocal piano solo versions of the same song...
March 15, 2018: Annals of the New York Academy of Sciences
Mark Stewart
This review traces the examination of autonomic, cardiovascular, and respiratory derangements associated with seizure activity in the clinical and preclinical literature generally, and in the author's animal model specifically, and concludes with the author's views on the potential mechanisms for sudden death in epilepsy (SUDEP). An animal model that employs kainic acid-induced seizures on a background of urethane anesthesia has permitted unprecedented access to the behavior of autonomic, cardiovascular, and respiratory systems during seizure activity...
March 14, 2018: Journal of Physiological Sciences: JPS
S Liyanagedera, R P Williams
The International League Against Epilepsy Classification of the Epilepsies, first presented in 1981, has been widely adopted across the globe. In 2017 it was revised to allow for more robust, specific, flexible and logical classification of seizures. A number of new seizure types are recognised. Classification should be timely as it plays a vital role in the diagnosis and management of patients with epilepsy. Accurate classification also underpins epilepsy research from pathophysiology to public health. Here we review the basic and extended forms of the classification...
December 2017: Journal of the Royal College of Physicians of Edinburgh
Kyle P Lillis, Kevin J Staley
For over a century, epileptic seizures have been characterized as a state of pathological, hypersynchronous brain activity. Anti-epileptic therapies have been developed largely based on the dogma that the altered brain rhythms result from an overabundance of glutamatergic activity or insufficient GABAergic inhibition. The most effective drugs in use today act to globally decrease excitation, increase inhibition, or decrease all activity. Unfortunately, such broad alterations to brain activity often lead to impactful side effects such as mood disordersdrowsiness, cognitive impairment, and sleep disruption...
March 14, 2018: Journal of Neural Engineering
V N Vakharia, J S Duncan, J-A Witt, C E Elger, R Staba, J Engel
Neurosurgery is an under-utilised treatment that can potentially cure drug-refractory epilepsy. Careful, multidisciplinary pre-surgical evaluation is vital for selecting patients and ensure optimal outcomes. Advances in neuroimaging have improved diagnosis and guide surgical intervention. Invasive electroencephalography allows the evaluation of complex patients who would otherwise not be candidates for neurosurgery. We review the current state of the assessment and selection of patients and consider established and novel surgical procedures, and associated outcome data...
March 13, 2018: Annals of Neurology
Fatemeh Khadjevand, Jan Cimbalnik, Gregory A Worrell
High-frequency oscillations (HFOs: 100 - 600 Hz) have been widely proposed as biomarkers of epileptic brain tissue. In addition, HFOs over a broader range of frequencies spanning 30 - 2000 Hz are potential biomarkers of both physiological and pathological brain processes. The majority of the results from humans with focal epilepsy have focused on HFOs recorded directly from the brain with intracranial EEG (iEEG) in the high gamma (65 - 100 Hz), ripple (100 - 250 Hz), and fast ripple (250 - 600 Hz) frequency ranges...
December 2017: Current Opinion in Biomedical Engineering
Aditya Jain, Aaron F Struck, Kaitlin M Woo, Christine J Jaskowiak, Lance T Hall
The aim of this study was to investigate thalamic and basal ganglia (BG) metabolism in temporal lobe epilepsy (TLE) on interictal18 F-FDG PET using standardized uptake value (SUV). Retrospective review of data was undertaken for patients who were surgically treated for medically intractable TLE. All patients underwent18 F-FDG PET, MRI brain and EEG as preoperative workup, and subsequently underwent temporal lobe resection. Postoperative outcomes were analyzed as without or with residual disabling seizures. SUVmax and SUVpeak values were calculated for thalamus and BG...
2018: American Journal of Nuclear Medicine and Molecular Imaging
James A Roberts, Karl J Friston, Michael Breakspear
Brain activity derives from intrinsic dynamics (due to neurophysiology and anatomical connectivity) in concert with stochastic effects that arise from sensory fluctuations, brainstem discharges, and random microscopic states such as thermal noise. The dynamic evolution of systems composed of both dynamic and random fluctuations can be studied with stochastic dynamic models (SDMs). This article, Part II of a two-part series, reviews applications of SDMs to large-scale neural systems in health and disease. Stochastic models have already elucidated a number of pathophysiological phenomena, such as epilepsy and hypoxic ischemic encephalopathy, although their use in biological psychiatry remains rather nascent...
April 2017: Biological Psychiatry: Cognitive Neuroscience and Neuroimaging
Martin Holtkamp, Lars Büntjen, Friedhelm C Schmitt
New treatment approaches in epilepsy - such as novel antiepileptic drugs and neurostimulation - generally at first are assessed in animal models in regard to feasibility, efficacy and safety. The aim of this review was to elucidate and summarize the available literature on in vivo experimental studies on radiofrequency thermoablation and laser interstitial thermal therapy. We have found two in vivo studies on radiofrequency ablation of an acute seizure focus, one assessed the conventional transcranial and the other one a transvenous approach...
March 3, 2018: Epilepsy Research
Puja Patel, Jules C Beal, Shlomo Shinnar
BACKGROUND: This study aims to improve the rate of folic acid supplementation to adolescent women with epilepsy on an antiepileptic drug (AED) regimen seen by the pediatric neurology providers at the Children's Hospital at Montefiore, in compliance with the 2009 American Academy of Neurology and American Epilepsy Society practice parameter. METHODS: We designed a quality improvement study with implementation of a series of interventions and compared folic acid supplementation rates before and after intervention...
December 14, 2017: Pediatric Neurology
Naila Ismayilova, Mary-Anne Leung, Ravi Kumar, Martin Smith, Ruth E Williams
PURPOSE: The Ketogenic Diet (KD) is a well-established treatment for epilepsy in children and adults. We describe our 10-year KD experience in children less than two years of age diagnosed with medically refractory epilepsy. METHODS: We conducted a retrospective case-note review of infants managed with KD at our centre between 2006 and 2016. RESULTS: Twenty-nine children between 2½ weeks and 23 months of age were identified, with mixed epilepsy aetiologies...
March 2, 2018: Seizure: the Journal of the British Epilepsy Association
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