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Neuroimaging and epilepsy

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https://www.readbyqxmd.com/read/28527263/-racemose-neurocysticercosis-neuroimaging-guides-the-diagnosis
#1
Carlos Hugo Zapata, Sergio Alberto Vargas, Carlos Santiago Uribe
Neurocysticercosis is the leading cause of parasitosis of the central nervous system and acquired epilepsy in developing countries. The clinical manifestations of neurocysticercosis, especially its racemose variant, are pleomorphic and unspecific, characteristics that hinder the diagnosis and make it a challenge for the clinician.The objective of this report was to describe two cases of racemose neurocysticercosis in which neuroimaging led to the definitive diagnosis. The first case involved a patient with persistent headache and focal neurological signs...
April 1, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/28503985/diagnostic-and-therapeutic-management-of-a-first-unprovoked-seizure-in-children-and-adolescents-with-a-focus-on-the-revised-diagnostic-criteria-for-epilepsy
#2
Arnold J Sansevere, Jennifer Avalone, Lauren Doyle Strauss, Archana A Patel, Anna Pinto, Maya Ramachandran, Ivan Sanchez Fernandez, Ann M Bergin, Amir Kimia, Phillip L Pearl, Tobias Loddenkemper
By definition, unprovoked seizures are not precipitated by an identifiable factor, such as fever or trauma. A thorough history and physical examination are essential to caring for pediatric patients with a potential first unprovoked seizure. Differential diagnosis, EEG, neuroimaging, laboratory tests, and initiation of treatment will be reviewed. Treatment is typically initiated after 2 unprovoked seizures, or after 1 seizure in select patients with distinct epilepsy syndromes. Recent expansion of the definition of epilepsy by the ILAE allows for the diagnosis of epilepsy to be made after the first seizure if the clinical presentation and supporting diagnostic studies suggest a greater than 60% chance of a second seizure...
January 1, 2017: Journal of Child Neurology
https://www.readbyqxmd.com/read/28503735/wdr45b-related-intellectual-disability-spastic-quadriplegia-epilepsy-and-cerebral-hypoplasia-a-consistent-neurodevelopmental-syndrome
#3
Jehan Suleiman, Diane Allingham-Hawkins, Mais Hashem, Hanan Shamseddin, Fowzan S Alkuraya, Ayman W El-Hattab
The advancement in genomic sequencing has greatly improved the diagnostic yield for neurodevelopmental disorders and led to the discovery of large number of novel genes associated with these disorders. WDR45B has been identified as a potential intellectual disability gene through genomic sequencing of two large cohorts of affected individuals. In this report we present six individuals from three unrelated families with homozygous pathogenic variants in WDR45B: c.799C>T (p.Q267*) in one family and c.673C>T (p...
May 14, 2017: Clinical Genetics
https://www.readbyqxmd.com/read/28487114/structural-brain-network-analysis-of-children-with-localization-related-epilepsy
#4
Kanako Takeda, Hiroshi Matsuda, Yusaku Miyamoto, Hitoshi Yamamoto
INTRODUCTION: Epilepsy is considered to arise from dysfunction in neural networks. Recent advances in neuroimaging and its analysis have made it possible to investigate both functional and structural connectivity in the brain. The aim of this study was to elucidate alterations in the structural connectivity in children with localization-related epilepsy using the mathematical method of graph theoretical analysis. METHODOLOGY: Fifteen children with localization-related epilepsy (8 female subjects; mean age, 8...
May 6, 2017: Brain & Development
https://www.readbyqxmd.com/read/28487050/top-100-cited-articles-on-epilepsy-and-status-epilepticus-a-bibliometric-analysis
#5
REVIEW
Kang Min Park, Sung Eun Kim, Byung In Lee, Hyung Chan Kim, Dae Young Yoon, Hong Ki Song, Jong Seok Bae
The purpose of this study is to identify the top 100-cited articles dedicated to epilepsy and status epilepticus published in journals from January, 1950 through February, 2016 that have made key contributions in the field. We performed a search of journals and selected the top 100-cited articles on epilepsy and status epilepticus, respectively, by utilizing the Institute for Scientific Information database available under the banner of the Web of Science. The top-cited articles on epilepsy and status epilepticus were all published in 24 journals, respectively...
May 6, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28452083/neurobiological-bases-of-autism-epilepsy-comorbidity-a-focus-on-excitation-inhibition-imbalance
#6
Yuri Bozzi, Giovanni Provenzano, Simona Casarosa
Autism spectrum disorders (ASD) and epilepsy are common neurological diseases of childhood, with an estimated incidence of approximately 0.5 - 1% of the worldwide population. Several genetic, neuroimaging and neuropathological studies clearly showed that both ASD and epilepsy have developmental origins and a substantial degree of heritability. Most importantly, ASD and epilepsy frequently coexist in the same individual, suggesting a common neurodevelopmental basis for these disorders. Genome-wide association studies recently allowed for the identification of a substantial number of genes involved in ASD and epilepsy, some of which are mutated in syndromes presenting both ASD and epilepsy clinical features...
April 27, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28449981/recessive-afg3l2-mutation-causes-progressive-microcephaly-early-onset-seizures-spasticity-and-basal-ganglia-involvement
#7
Alaa Eskandrani, Amal AlHashem, El-Sayed Ali, Saad AlShahwan, Kalthoum Tlili, Khaled Hundallah, Brahim Tabarki
BACKGROUND: Mutations in AFG3L2, a gene encoding a subunit of the mitochondrial m-AAA protease, cause spinocerebellar ataxia type 28 and recessive spastic ataxia type 5. Neuroimaging shows cerebellar atrophy. METHODS: Retrospective review of the patient charts including their clinical evaluation and molecular genetic, neurodiagnostic, and neuroradiological investigations. RESULTS: We describe five members of a large consanguineous family with a severe mitochondrial phenotype in the form of regression of the developmental milestones in the first year of life, refractory epilepsy, progressive microcephaly, increased blood lactate, basal ganglia involvement, and premature death...
April 5, 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/28433263/memory-assessment-in-patients-with-temporal-lobe-epilepsy-to-predict-memory-impairment-after-surgery-a-systematic-review
#8
P Parra-Díaz, N García-Casares
INTRODUCTION: Given that surgical treatment of refractory mesial temporal lobe epilepsy may cause memory impairment, determining which patients are eligible for surgery is essential. However, there is little agreement on which presurgical memory assessment methods are best able to predict memory outcome after surgery and identify those patients with a greater risk of surgery-induced memory decline. OBJECTIVE: We conducted a systematic literature review to determine which presurgical memory assessment methods best predict memory outcome...
April 19, 2017: Neurología: Publicación Oficial de la Sociedad Española de Neurología
https://www.readbyqxmd.com/read/28431832/unravelling-the-mysteries-of-sudden-unexpected-death-in-epilepsy
#9
K G Hampel, R Rocamora Zuñiga, C M Quesada
INTRODUCTION: Sudden unexpected death in epilepsy (SUDEP) is the most frequent cause of premature death in epileptic patients. Most SUDEP events occur at night and frequently go unnoticed; the exact pathophysiological mechanisms of this phenomenon therefore remain undetermined. Nevertheless, most cases of SUDEP are attributed to an infrequent yet extremely severe complication of epileptic seizures. DEVELOPMENT: We conducted a systematic literature search on PubMed...
April 18, 2017: Neurología: Publicación Oficial de la Sociedad Española de Neurología
https://www.readbyqxmd.com/read/28431599/usefulness-of-ilae-2010-classification-in-mexican-epilepsy-patients
#10
Ildefonso Rodríguez Leyva, Juan Francisco Hernández Gómez, Fernando Cortés Enríquez, Juan Francisco Hernández Sierra
OBJECTIVE: Advances in neuroimaging, genomics, and molecular biology have improved the understanding of the pathogenesis of epilepsy. That is why the International League Against Epilepsy (ILAE) has created a new classification system. The present study aims to evaluate the association between epilepsy cases classified by the ILAE 2010 classification proposal, electroencephalography (EEG), and magnetic resonance imaging brain findings (MRI). METHODS: Prospective cross-sectional design of 277 cases of epilepsy seen at the Epilepsy Clinic, Hospital Central "Dr...
May 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28414105/functional-reorganization-after-hemispherectomy-in-humans-and-animal-models-what-can-we-learn-about-the-brain-s-resilience-to-extensive-unilateral-lesions
#11
REVIEW
Luca Sebastianelli, Viviana Versace, Alexandra Taylor, Francesco Brigo, Wolfgang Nothdurfter, Leopold Saltuari, Eugen Trinka, Raffaele Nardone
Hemispherectomy (HS) is an effective surgical procedure aimed at managing otherwise intractable epilepsy in cases of diffuse unihemispheric pathologies. Neurological recovery in subjects treated with HS is not limited to seizure reduction, rather, sensory-motor and behavioral improvement is often observed. This outcome highlights the considerable capability of the brain to react to such an extensive lesion, by functionally reorganizing and rewiring the cerebral cortex, especially early in life. In this narrative review, we summarize the animal studies as well as the human neurophysiological and neuroimaging studies dealing with the reorganizational processes that occur after HS...
April 13, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/28410466/history-of-surgery-for-temporal-lobe-epilepsy
#12
REVIEW
Ali A Asadi-Pooya, Cyrus Rostami
The history of epilepsy and its treatment goes back to ancient times when it included medicinal herbs, lifestyle modifications, and even surgery. Trepanation is considered the oldest surgical procedure for the treatment of epilepsy. The first series of temporal lobectomies for the treatment of drug-resistant epilepsy were reported by Penfield and Flanigin (1950). During the years since then, neuroimaging and other technologies have had remarkable and revolutionary progress. This progress has resulted in tremendous advancements in understanding the underlying causes and pathophysiology of epilepsies...
May 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28396650/new-onset-refractory-status-epilepticus-with-claustrum-damage-definition-of-the-clinical-and-neuroimaging-features
#13
Stefano Meletti, Giada Giovannini, Giuseppe d'Orsi, Lisa Toran, Giulia Monti, Rahul Guha, Andreas Kiryttopoulos, Maria Grazia Pascarella, Tommaso Martino, Haris Alexopoulos, Martha Spilioti, Jana Slonkova
New-onset refractory status epilepticus (NORSE) is a rare but challenging condition occurring in a previously healthy patient, often with no identifiable cause. We describe the electro-clinical features and outcomes in a group of patients with NORSE who all demonstrated a typical magnetic resonance imaging (MRI) sign characterized by bilateral lesions of the claustrum. The group includes 31 patients (12 personal and 19 previously published cases; 17 females; mean age of 25 years). Fever preceded status epilepticus (SE) in 28 patients, by a mean of 6 days...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28389021/ictal-speech-and-language-dysfunction-in-adult-epilepsy-clinical-study-of-95%C3%A2-seizures
#14
C Dussaule, C Cauquil, C Flamand-Roze, J-P Gagnepain, V Bouilleret, C Denier, P Masnou
PURPOSE: To analyze the semiological characteristics of the language and speech disorders arising during epileptic seizures, and to describe the patterns of language and speech disorders that can predict laterality of the epileptic focus. METHOD: This study retrospectively analyzed 95 consecutive videos of seizures with language and/or speech disorders in 44 patients admitted for diagnostic video-EEG monitoring. Laterality of the epileptic focus was defined according to electro-clinical correlation studies and structural and functional neuroimaging findings...
April 4, 2017: Revue Neurologique
https://www.readbyqxmd.com/read/28384730/intractable-epilepsy-and-progressive-cognitive-decline-in-a-young-man
#15
Alexander L Cohen, Lyell K Jones, Joseph E Parisi, James P Klaas
A young man with normal neurodevelopment presented with 3 years of medically refractory, progressive epilepsy and myoclonus. Initial examination included neuroimaging, electroencephalography, and biochemical analyses, all of which were unremarkable except for mildly enlarged ventricles. Over the following year, the patient experienced rapid cognitive decline with new-onset recurrent visual hallucinations and progressive lethargy. Results of subsequent electroencephalography and brain imaging were unchanged, and a fluorodeoxyglucose F 18 positron emission tomographic scan was normal...
April 3, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/28380698/myoclonus-epilepsy-and-ataxia-due-to-kcnc1-mutation-analysis-of-20-cases-and-k-channel-properties
#16
Karen L Oliver, Silvana Franceschetti, Carol J Milligan, Mikko Muona, Simone A Mandelstam, Laura Canafoglia, Anna M Boguszewska-Chachulska, Amos Korczyn, Francesca Bisulli, Carlo Di Bonaventura, Francesca Ragona, Roberto Michelucci, Bruria Ben-Zeev, Rachel Straussberg, Ferruccio Panzica, João Massano, Daniel Friedman, Arielle Crespel, Bernt A Engelsen, Frederick Andermann, Eva Andermann, Krystyna Spodar, Anetta Lasek-Bal, Patrizia Riguzzi, Elena Pasini, Paolo Tinuper, Laura Licchetta, Elena Gardella, Matthias Lindenau, Annette Wulf, Rikke S Møller, Felix Benninger, Zaid Afawi, Guido Rubboli, Christopher A Reid, Snezana Maljevic, Holger Lerche, Anna-Elina Lehesjoki, Steven Petrou, Samuel F Berkovic
OBJECTIVE: To comprehensively describe the new syndrome of myoclonus epilepsy and ataxia due to potassium (K(+) ) channel mutation (MEAK), including cellular electrophysiological characterization of observed clinical improvement with fever. METHODS: We analysed clinical, electroclinical and neuroimaging data for twenty patients with MEAK due to recurrent KCNC1 p.R320H mutation. In vitro electrophysiological studies were conducted using whole cell patch clamp to explore biophysical properties of wild-type and mutant KV 3...
April 5, 2017: Annals of Neurology
https://www.readbyqxmd.com/read/28378817/severe-neurodegeneration-progressive-cerebral-volume-loss-and-diffuse-hypomyelination-associated-with-a-homozygous-frameshift-mutation-in-cstb
#17
Alan O'Brien, Christian R Marshall, Susan Blaser, Peter N Ray, Grace Yoon
Mutations of the cystatin B gene (CSTB; OMIM 601145) are known to cause Unverricht-Lundborg disease or progressive myoclonic epilepsy-1A (EPM1A, MIM #254800). Most patients are homozygous for an expanded (>30) dodecamer repeat in the promoter region of CSTB, or are compound heterozygotes for the dodecamer repeat and a point mutation. We report two adolescent sisters born to consanguineous parents of Sri Lankan descent who presented with profound global developmental delay, microcephaly, cortical blindness and axial hypotonia with appendicular hypertonia...
June 2017: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/28376856/the-causal-relationship-between-neurocysticercosis-infection-and-the-development-of-epilepsy-a-systematic-review
#18
REVIEW
Lucy B Gripper, Susan C Welburn
BACKGROUND: Neurocysticercosis (NCC) is a parasitic infection of the human central nervous system, the most common form of which involves infection of the brain parenchyma with the larval form of the Taenia solium tapeworm. A causal relationship between such an NCC infection and the development of epilepsy in infected individuals is acknowledged, in part supported by high levels of comorbidity in endemic countries worldwide. METHODS: This study undertook a systematic review and critical analysis of the NCC-epilepsy relationship with the primary objective of quantifying the risk of developing epilepsy following NCC infection...
April 5, 2017: Infectious Diseases of Poverty
https://www.readbyqxmd.com/read/28373797/refractory-lesional-parietal-lobe-epilepsy-clinical-electroencephalographic-and-neurodiagnostic-findings
#19
Oğuzhan Kurşun, Hülya Karataş, Neşe Dericioğlu, Serap Saygi
INTRODUCTION: Specialized centers, in the management and surgical treatment of medically refractory epilepsy, emphasize the importance of differentiating the varieties of localization related epilepsies. There has been considerable recent interest in temporal and frontal lobe epileptic syndromes and less attention has been paid to parietal and occipital lobe epilepsies. METHODS: Here we report the clinical, electroencephalographic and neuroimaging characteristics of 46 patients with medically refractory lesional parietal lobe epilepsy who have been followed up for 1-10 years...
September 2016: Noro Psikiyatri Arsivi
https://www.readbyqxmd.com/read/28361817/epilepsy-is-there-hope
#20
REVIEW
Carlos A M Guerreiro
Epilepsy is a highly prevalent chronic neurologic disorder and leads to social, behavioural, health and economic consequences. 'Treatment gap' varies from 10 per cent in developed countries to 75 per cent in low-income countries. Stigma and discrimination related to epilepsy are prevalent worldwide. Electroencephalography (EEG) is considered the most important tool for evaluating the patient with epilepsy. Video-EEG monitoring is an important tool for confirming the seizure type and estimating the epileptogenic zone in the brain...
November 2016: Indian Journal of Medical Research
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