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Frontal Lobe Epilepsy

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Unilateral prefrontal lobotomy for epilepsy: technique and surgical anatomy.

Giulia Cossu, Pablo González-López, Etienne Pralong, Judith Kalser, Mahmoud Messerer, Roy Thomas Daniel,

OBJECTIVE:Surgery for frontal lobe epilepsy remains a challenge because of the variable seizure outcomes after surgery. Disconnective procedures are increasingly applied to isolate the epileptogenic focus and avoid complications related to extensive brain resection. Previously, the authors described the anterior quadrant disconnection procedure to treat large frontal lobe lesions extending ... Read more >>

Neurosurg Focus (Neurosurgical focus)
[2020, 48(4):E10]

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Distributed source analysis of magnetoencephalography using a volume head model combined with statistical methods improves focus diagnosis in epilepsy surgery.

Tomotaka Ishizaki, Satoshi Maesawa, Daisuke Nakatsubo, Hiroyuki Yamamoto, Sou Takai, Masashi Shibata, Sachiko Kato, Jun Natsume, Minoru Hoshiyama, Toshihiko Wakabayashi,

Deep-seated epileptic focus estimation using magnetoencephalography is challenging because of its low signal-to-noise ratio and the ambiguity of current sources estimated by interictal epileptiform discharge (IED). We developed a distributed source (DS) analysis method using a volume head model as the source space of the forward model and standardized low-resolution ... Read more >>

Sci Rep (Scientific reports)
[2020, 10(1):5263]

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Connectivity Gradient in the Human Left Inferior Frontal Gyrus: Intraoperative Cortico-Cortical Evoked Potential Study.

Takuro Nakae, Riki Matsumoto, Takeharu Kunieda, Yoshiki Arakawa, Katsuya Kobayashi, Akihiro Shimotake, Yukihiro Yamao, Takayuki Kikuchi, Toshihiko Aso, Masao Matsuhashi, Kazumichi Yoshida, Akio Ikeda, Ryosuke Takahashi, Matthew A Lambon Ralph, Susumu Miyamoto,

In the dual-stream model of language processing, the exact connectivity of the ventral stream to the anterior temporal lobe remains elusive. To investigate the connectivity between the inferior frontal gyrus (IFG) and the lateral part of the temporal and parietal lobes, we integrated spatiotemporal profiles of cortico-cortical evoked potentials (CCEPs) ... Read more >>

Cereb. Cortex (Cerebral cortex (New York, N.Y. : 1991))
[2020, :]

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The understanding of mental states and the cognitive phenotype of frontal lobe epilepsy.

Anna Rita Giovagnoli, Giulia Maria Tallarita, Annalisa Parente, Chiara Pastori, Marco de Curtis,

OBJECTIVE:Previous studies of frontal lobe epilepsy (FLE) have documented different impairments of theory of mind (ToM), while the study of frontal lobe (FL) lesion without seizures has produced inconsistent results. Given the role played by the FLs in ToM, we evaluated this and other functions in patients with FLE with ... Read more >>

Epilepsia (Epilepsia)
[2020, :]

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The effect of using awake craniotomy combined with multimodal techniques intraoperatively on the survival of patients with glioblastoma: A retrospective single-centre study

hui zhou, Li Yang, Ming Lu, Xqing Deng, Mming Yang,

<title>Abstract</title> <p> Background :We analysed outcomes of cerebral glioblastoma patients undergoing awake craniotomies combined with multimodal techniques for tumour resection, with regards to the extent of resection, functional preservation, and prognosis. Methods : A retrospective analysis was conducted on adult glioblastoma patients who underwent an awake craniotomy from ... Read more >>

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Tailor-Made Surgery Based on Functional Networks for Intractable Epilepsy.

Kyousuke Kamada, Christoph Kapeller, Fumiya Takeuchi, Johannes Gruenwald, Christoph Guger,

Normal and pathological networks related to seizure propagation have got attention to elucide complex seizure semiology and contribute to diagnosis and surgical monitoring in epilepsy treatment. Since focal and generalized epileptogenic syndromes abnormalities might involve multiple foci and large-scale networks, we applied electrophysiolpgy (cortco-cortico evoked potential; CCEP), and tractography to ... Read more >>

Front Neurol (Frontiers in neurology)
[2020, 11:73]

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Deep brain stimulation of anterior thalamic nucleus for the treatment of a patient with tuberous sclerosis-related refractory epilepsy.

He Zheng, Wang Chengcheng, Jiang Bin, Wang Chaochao, Zhang Hongying, Guo Wenqiang, Liu Bin, Tian Hailong, Wang Zhigang,

Neuromodulation is recommended for patients with refractory tuberous sclerosis related epilepsy (TRE) who are unable to localize epileptogenic nodules after comprehensive preoperative evaluation or for patients and families who do not agree to resection. We report a patient with refractory TRE who received deep brain stimulation of anterior thalamic nucleus ... Read more >>

World Neurosurg (World neurosurgery)
[2020, :]

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Altered spontaneous brain activity pattern in patients with ophthalmectomy: an resting-state fMRI study.

Bing Zhang, Biao Li, Rong-Qiang Liu, Yong-Qiang Shu, You-Lan Min, Qing Yuan, Pei-Wen Zhu, Qi Lin, Lei Ye, Yi Shao,

AIM:To use the voxel-wise degree centrality (DC) method to explore the underlying functional network brain-activity in patients with ophthalmectomy. METHODS:A total of 32 ophthalmic surgery patients (10 women and 22 men), and 32 healthy subjects (10 women and 22 men) highly matched in gender, age, and the same operation method. ... Read more >>

Int J Ophthalmol (International journal of ophthalmology)
[2020, 13(2):263-270]

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Rhythmic rocking stereotypies in frontal lobe seizures: A quantified video study.

Jen-Cheng Hou, Monique Thonnat, Raoul Huys, Fabrice Bartolomei, Aileen McGonigal,

OBJECTIVES:Rhythmic, stereotyped movements occur in some epileptic seizures. We aimed to document time-evolving frequencies of antero-posterior rocking occurring during prefrontal seizures, using a quantitative video analysis. METHODS:Six seizures from 3 patients with prefrontal epilepsy yet different sublobar localizations were analyzed using a deep learning-based head-tracking method. RESULTS:Mean rocking frequency varied ... Read more >>

Neurophysiol Clin (Neurophysiologie clinique = Clinical neurophysiology)
[2020, :]

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Comparison of pseudocontinuous arterial spin labeling perfusion MR images and time-of-flight MR angiography in the detection of periictal hyperperfusion.

Noritoshi Shirozu, Takato Morioka, So Tokunaga, Takafumi Shimogawa, Daisuke Inoue, Shoji Arihiro, Ayumi Sakata, Nobutaka Mukae, Sei Haga, Koji Iihara,

Background:Magnetic resonance imaging (MRI), including perfusion MRI with three-dimensional pseudocontinuous arterial spin labeling (ASL) and diffusion-weighted imaging (DWI), are applied in the periictal (including ictal and postictal) detection of circulatory and metabolic consequences associated with epilepsy. Our previous report revealed that periictal hyperperfusion can firstly be detected on ASL, and ... Read more >>

eNeurologicalSci (eNeurologicalSci)
[2020, 19:100233]

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Baseline Difference in Quantitative Electroencephalography Variables Between Responders and Non-Responders to Low-Frequency Repetitive Transcranial Magnetic Stimulation in Depression.

Premysl Vlcek, Martin Bares, Tomas Novak, Martin Brunovsky,

Repetitive transcranial magnetic stimulation (rTMS) is an effective treatment for depressive disorder, with outcomes approaching 45-55% response and 30-40% remission. Eligible predictors of treatment outcome, however, are still lacking. Few studies have investigated quantitative electroencephalography (QEEG) parameters as predictors of rTMS treatment outcome and none of them have addressed the ... Read more >>

Front Psychiatry (Frontiers in Psychiatry)
[2020, 11:83]

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Intravenous methylprednisolone or immunoglobulin for anti-glutamic acid decarboxylase 65 antibody autoimmune encephalitis: which is better?

Tao-Ran Li, Yu-Di Zhang, Qun Wang, Xiao-Qiu Shao, Zhi-Mei Li, Rui-Juan Lv,

BackgroundPatients positive for anti-glutamic acid decarboxylase 65 (GAD65) antibodies have attracted increasing attention. Their clinical manifestations are highly heterogeneous and can be comorbid with tumors. Currently, there is no consensus on the therapeutic regimen for anti-GAD65-associated neurological diseases due to the clinical complexity, rarity and sporadic distribution. We reported six ... Read more >>

BMC Neurosci (BMC Neuroscience)
[2020, 21:]

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Early-onset dementia: diagnostic challenges.

Bushra Elhusein, Omer Bakri Mahgoub, Abdalla Khairi,

A 56-year-old man was brought to our hospital by his family, seeking medical treatment for the patient's long-standing progressive word-finding difficulties, forgetfulness, agitation and social withdrawal. After multiple previous physician consultations, the patient was mistakenly diagnosed with epilepsy and prescribed multiple anticonvulsants, to which his above mentioned symptoms were unresponsive. ... Read more >>

BMJ Case Rep (BMJ case reports)
[2020, 13(3):]

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Concordance Between Transcranial Magnetic Stimulation and Functional Magnetic Resonance Imaging (MRI) Derived Localization of Language in a Clinical Cohort.

Katherine Schiller, Asim F Choudhri, Tamekia Jones, Christen Holder, James W Wheless, Shalini Narayana,

Transcranial magnetic stimulation (TMS) is a newer noninvasive language mapping tool that is safe and well-tolerated by children. We examined the accuracy of TMS-derived language maps in a clinical cohort by comparing it against functional magnetic resonance imaging (MRI)-derived language map. The number of TMS-induced speech disruptions and the volume ... Read more >>

J. Child Neurol. (Journal of child neurology)
[2020, :883073820901415]

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Cognitive Function in Genetic Generalized Epilepsies: Insights From Neuropsychology and Neuroimaging.

Corey Ratcliffe, Britta Wandschneider, Sallie Baxendale, Pamela Thompson, Matthias J Koepp, Lorenzo Caciagli,

Genetic generalized epilepsies (GGE), previously called idiopathic generalized epilepsies, constitute about 20% of all epilepsies, and include childhood absence epilepsy, juvenile absence epilepsy, juvenile myoclonic epilepsy, and epilepsy with generalized tonic-clonic seizures alone (CAE, JAE, JME, and GGE-GTCS, respectively). GGE are characterized by high heritability, likely underlain by polygenetic mechanisms, ... Read more >>

Front Neurol (Frontiers in Neurology)
[2020, 11:144]

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Neuroimaging of memory in frontal lobe epilepsy.

Sangeeta Nair, Jerzy P Szaflarski,

In a large percentage of epilepsies, seizures have focal onset. These epilepsies are associated with a wide range of behavioral and cognitive deficits sometimes limited to the functions encompassed within the ictal onset zone but, more frequently, expanding beyond it. The presence of impairments associated with neuroanatomical areas outside of ... Read more >>

Epilepsy Behav (Epilepsy & behavior : E&B)
[2020, 103(Pt A):106857]

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Pilomotor Seizures in a Patient With LGI1 Encephalitis.

Jinxia Yang, Qiying Sun, Guang Yang,

Limbic encephalitis (LE) with antibodies against leucine-rich glioma inactivated protein 1 (LGI1) is an autoimmune disease with variable clinical features, including seizures, cognitive disorders, psychiatric disturbances, and hyponatremia. The majority of these patients present faciobrachial dystonic seizures (FBDS), which are regarded as a characteristic symptom. A few cases have reported ... Read more >>

Front Neurol (Frontiers in neurology)
[2020, 11:61]

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SWS Brain-Wave Music May Improve the Quality of Sleep: An EEG Study.

Dongrui Gao, Siyu Long, Hua Yang, Yibo Cheng, Sijia Guo, Yue Yu, Tiejun Liu, Li Dong, Jing Lu, Dezhong Yao,

Aim:This study investigated the neural mechanisms of brain-wave music on sleep quality. Background:Sleep disorders are a common health problem in our society and may result in fatigue, depression, and problems in daytime functioning. Previous studies have shown that brain-wave music generated from electroencephalography (EEG) signals could emotionally affect our nervous ... Read more >>

Front Neurosci (Frontiers in neuroscience)
[2020, 14:67]

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The effect of using awake craniotomy combined with multimodal techniques intraoperative on survival of patients with glioblastoma: a single-center experience

hui zhou, Li Yang, Ming Lu, Xinqing Deng, Mingming Yang,

<title>Abstract</title> <p> <bold>Background</bold>:We analysed outcomes of cerebral glioblastoma patients undergoing awake craniotomies combined with multimodal techniques for tumour resection, with regards to the extent of resection, functional preservation, and prognosis.<bold>Methods:</bold>A retrospective analysis was conducted on adult glioblastoma patients who underwent an awake craniotomy from September 2010 to August ... Read more >>

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A Case of Complex and Abnormal Behaviors at Night: The Role of the Epilepsy Monitoring Unit in Diagnosis.

Montserrat Diaz-Abad, Ana M Sanchez, Arif Kabir, John Konikkara,

Complex nocturnal behaviors associated with sleep have many potential causes, including parasomnias and epilepsy. Although the type of event and description can frequently lead to a diagnosis, sometimes it is challenging clinically to determine the cause of the behaviors, requiring a more in-depth investigation. We report the case of a ... Read more >>

Case Rep Neurol (Case reports in neurology)
[2020, 12(1):18-23]

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Two mutations in the nicotinic acetylcholine receptor subunit A4 (CHRNA4) in a family with autosomal dominant sleep-related hypermotor epilepsy.

Lisa Langenbruch, Saskia Biskup, Peter Young, Bianca Dräger, Gabriel Möddel,

Sleep-related hypermotor epilepsy, or nocturnal frontal lobe epilepsy, as it was formerly called, is a focal epilepsy with mostly sleep-related seizures of hypermotor, tonic or dystonic semiology. Sleep-related hypermotor epilepsy may be attributed to a monogenetic cause with autosomal dominant inheritance. Mutations are described in different genes, including the genes ... Read more >>

Epileptic Disord (Epileptic disorders : international epilepsy journal with videotape)
[2020, 22(1):116-119]

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[Clinical and neuropsychological studies of patients before and after insular glioma resection].

S B Buklina, A E Bykanov, D I Pitskhelauri,

AIM:The study was aimed to investigate the insula function based on analysis and comparison of epileptic seizures (irritation symptoms) and cognitive impairment (memory loss) in patients with insular gliomas. MATERIAL AND METHODS:Epileptic seizures and cognitive impairment were analyzed in 51 patients with insular gliomas before and after surgery. The tumor ... Read more >>

Zh Vopr Neirokhir Im N N Burdenko (Zhurnal voprosy neirokhirurgii imeni N. N. Burdenko)
[2020, 84(1):43-54]

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Detecting focal cortical dysplasia lesions from FLAIR-negative images based on cortical thickness.

Cuixia Feng, Hulin Zhao, Maoyu Tian, Miaomiao Lu, Junhai Wen,

BACKGROUND:Focal cortical dysplasia (FCD) is a neuronal migration disorder and is a major cause of drug-resistant epilepsy. However, many focal abnormalities remain undetected during routine visual inspection, and many patients with histologically confirmed FCD have normal fluid-attenuated inversion recovery (FLAIR-negative) images. The aim of this study was to quantitatively evaluate ... Read more >>

Biomed Eng Online (Biomedical engineering online)
[2020, 19(1):13]

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Genetic variations associated with pharmacoresistant epilepsy.

Noemí Cárdenas-Rodríguez, Liliana Carmona-Aparicio, Diana L. Pérez-Lozano, Daniel Ortega-Cuellar, Saúl Gómez-Manzo, Iván Ignacio-Mejía,

Epilepsy is a common, serious neurological disorder worldwide. Although this disease can be successfully treated in most cases, not all patients respond favorably to medical treatments, which can lead to pharmacoresistant epilepsy. Drug-resistant epilepsy can be caused by a number of mechanisms that may involve environmental and genetic factors, as ... Read more >>

Mol Med Rep (Molecular Medicine Reports)
[2020, 21(4):1685-1701]

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Saccadic modulation of neural activity in the human anterior thalamus during visual active sensing

Marcin Leszczynski, Tobias Staudigl, Leila Chaieb, Simon Jonas Enkirch, Juergen Fell, Charles Schroeder,

Humans and other primates explore visual scenes by active sensing, using saccadic eye movements to relocate the fovea and sample different bits of information multiple times per second. Recent reports indicate that saccades induce a phase reset of ongoing neuronal oscillations in a distributed network including primary and higher-order visual ... Read more >>

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