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https://www.readbyqxmd.com/read/28729114/altered-intrinsic-functional-connectivity-in-the-latent-period-of-epileptogenesis-in-a-temporal-lobe-epilepsy-model
#1
Hyoin Lee, Seungmoon Jung, Peter Lee, Yong Jeong
The latent period, a seizure-free phase, is the duration between brain injury and the onset of spontaneous recurrent seizures (SRSs) during epileptogenesis. The latent period is thought to involve several progressive pathophysiological events that lead to the evolution of the chronic epilepsy phase. Hence, it is vital to investigate the changes in the latent period during epileptogenesis in order to better understand temporal lobe epilepsy (TLE), and to achieve early diagnosis and appropriate management of the condition...
July 17, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28725554/successful-surgical-management-of-new-onset-refractory-status-epilepticus-norse-presenting-with-gelastic-seizures-in-a-3%C3%A2-year-old-girl
#2
Ahmad Marashly, Sean Lew, Jennifer Koop
Gelastic seizures (GS) are typically associated with hypothalamic hamartomas and present during childhood. However it is now known that GS can be found in focal epilepsies arising from other regions in the brain, including mesial and neocortical frontal, temporal and parietal regions. GS have rarely been described as the presenting manifestation of New Onset Refractory Status Epilepticus (NORSE). In this article we describe a previously healthy 3-year-old who presented with an explosive onset of GS that were refractory to multiple anti-seizure medications...
2017: Epilepsy & Behavior Case Reports
https://www.readbyqxmd.com/read/28699152/-characteristics-of-structural-injuries-in-pediatric-patients-with-focal-epilepsy-in-a-honduran-hospital
#3
A Ramirez-Izcoa, D Varela-Gonzalez, M I Fonseca
INTRODUCTION: Epilepsy is the most commonly occurring neurological disorder in the world. The study of structural brain lesions is important to understand the secondary complications. In Honduras there is little information on this topic. AIM: To determine the characteristics and proportion of structural brain lesions in paediatric patients with focal epilepsy at the Hospital Escuela Universitario. PATIENTS AND METHODS: A descriptive, cross-sectional, retrospective-prospective study...
August 1, 2017: Revista de Neurologia
https://www.readbyqxmd.com/read/28674781/spike-densities-of-the-amygdala-and-neocortex-reflect-progression-of-kindled-motor-seizures
#4
Yu-Lin Wang, Sheng-Fu Liang, Alvin W Y Su, Fu-Zen Shaw
Amygdala kindling is a common temporal lobe-like seizure model. In the present study, temporal and spectral analyses of the ictal period were investigated throughout amygdala kindling in response to different behavioral seizures. Right-side amygdala was kindled to induce epileptiform afterdischarges (ADs). ADs of both the frontal cortex and amygdala were analyzed. Powers of the low (0-9 Hz)- and high (12-30 Hz)-frequency bands in response to different behavioral seizures were calculated. Densities of upward and downward peaks of spikes, which reflected information of spike count and spike pattern, throughout kindle-induced ADs were calculated...
July 4, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/28673029/predictive-factors-of-surgical-outcome-in-frontal-lobe-epilepsy-explored-with-stereoelectroencephalography
#5
Francesca Bonini, Aileen McGonigal, Didier Scavarda, Romain Carron, Jean Régis, Henry Dufour, Jean-Claude Péragut, Virginie Laguitton, Nathalie Villeneuve, Patrick Chauvel, Bernard Giusiano, Agnès Trébuchon, Fabrice Bartolomei
BACKGROUND: Resective surgery established treatment for pharmacoresistant frontal lobe epilepsy (FLE), but seizure outcome and prognostic indicators are poorly characterized and vary between studies. OBJECTIVE: To study long-term seizure outcome and identify prognostic factors. METHODS: We retrospectively analyzed 42 FLE patients having undergone surgical resection, mostly preceded by invasive recordings with stereoelectroencephalography (SEEG)...
June 29, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28669013/narrative-medicine-perspectives-on-patient-identity-and-integrative-care-in-neuro-oncology
#6
Robert B Slocum, Tracy A Howard, John L Villano
Narrative Medicine sessions can encourage patients to rediscover personal identity and meaning by telling or writing their stories. We explored this process to improve care and quality of life for brain cancer patients in an academic neuro-oncology program. Brain cancer and its treatments may threaten a patient's quality of life and sense of self in many ways, including impaired cognitive skills, loss of memory, reduced coordination, and limited capacity for self-expression. The impact of symptoms and side effects on quality of life must be evaluated in terms of each patient's identity and may be understood in terms of each patient's story...
July 1, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28658819/osteoma-of-the-middle-turbinate-presenting-with-frontal-lobe-abscess-and-seizure
#7
Ramandeep Singh Virk, Shikhar Sawhney
Osteomas are the most common benign tumours of the sinonasal tract. Even though their location in the sinuses is well known, turbinate osteomas are quite rare. We report one such case of a 26-year-old female who presented with neurological complaints of a seizure rather than nasal complaints. The cause of the seizure was found to be a small abscess in her frontal lobe, secondary to frontal sinusitis due to a bony hard nasal mass arising from the middle turbinate. She underwent endoscopic excision of the mass which was confirmed on histopathology as an osteoma...
May 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28631645/primary-leptomeningeal-primitive-neuroectodermal-tumor-a-difficult-entity-to-diagnose
#8
Jyothy Sehgal, Murthy Murali Krishna Jagarlapudi, Murthy V R K Tenneti, Syed Ameer Basha, Sundaram Challa
A 25-year-old male presented with difficulty in walking, loss of vision, and seizures. A clinical possibility of craniospinal meningeal pathology was considered. On computed tomography (CT) scan and magnetic resonance imaging, there was an enhancement of leptomeninges with few ring-enhancing lesions in both frontal lobes and right frontoparietal region. He was evaluated for low backache and occipital headache 2½ years earlier and was found to have communicating hydrocephalus on CT scan. He underwent ventriculoperitoneal shunt and was followed up with CT scans...
April 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/28630376/functional-connectivity-disturbances-of-the-ascending-reticular-activating-system-in-temporal-lobe-epilepsy
#9
Dario J Englot, Pierre-Francois D'Haese, Peter E Konrad, Monica L Jacobs, John C Gore, Bassel W Abou-Khalil, Victoria L Morgan
OBJECTIVE: Seizures in temporal lobe epilepsy (TLE) disturb brain networks and lead to connectivity disturbances. We previously hypothesised that recurrent seizures in TLE may lead to abnormal connections involving subcortical activating structures including the ascending reticular activating system (ARAS), contributing to neocortical dysfunction and neurocognitive impairments. However, no studies of ARAS connectivity have been previously reported in patients with epilepsy. METHODS: We used resting-state functional MRI recordings in 27 patients with TLE (67% right sided) and 27 matched controls to examine functional connectivity (partial correlation) between eight brainstem ARAS structures and 105 cortical/subcortical regions...
June 19, 2017: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/28622529/automatic-multimodal-detection-for-long-term-seizure-documentation-in-epilepsy
#10
F Fürbass, S Kampusch, E Kaniusas, J Koren, S Pirker, R Hopfengärtner, H Stefan, T Kluge, C Baumgartner
OBJECTIVE: This study investigated sensitivity and false detection rate of a multimodal automatic seizure detection algorithm and the applicability to reduced electrode montages for long-term seizure documentation in epilepsy patients. METHODS: An automatic seizure detection algorithm based on EEG, EMG, and ECG signals was developed. EEG/ECG recordings of 92 patients from two epilepsy monitoring units including 494 seizures were used to assess detection performance...
May 25, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28614161/multiple-cerebral-infarcts-in-a-young-patient-associated-with-marijuana-use
#11
Leila Costa Volpon, Camila Lacerda Muniz de Melo Sousa, Silvia Keiko Kavaguti Moreira, Sara Reis Teixeira, Ana Paula de Carvalho Panzeri Carlotti
: Cerebrovascular events associated with marijuana use have been reported previously. This association is plausible, but not well-established yet. A 14-year-old girl, long-term heavy cannabis user, presented with generalized tonic-clonic seizures and decreased level of consciousness a few hours after smoking cannabis. Brain magnetic resonance imaging showed multiple areas of acute, subacute and chronic ischemic lesions in the left frontal lobe, basal ganglia, and corpus callosum. History of other illicit drug use and other known causes of stroke were ruled out...
June 13, 2017: Journal of Addiction Medicine
https://www.readbyqxmd.com/read/28557904/characteristics-of-eeg-seizure-onset-patterns-recorded-from-subdural-electrodes-over-mri-visible-frontal-focal-cortical-dysplasia-type-iib-lesions
#12
Daisuke Hirozawa, Kiyohito Terada, Kazumi Matsuda, Keiko Usui, Naotaka Usui, Takayasu Tottori, Akihiko Kondo, Yasukiyo Araki, Yoshio Omote, Yumi Kashida, Hideki Mochizuki, Yushi Inoue
PURPOSE: Focal cortical dysplasia (FCD) is intrinsically epileptogenic, and an MRI-visible lesion typically constitutes the core part of the epileptogenic zone. We aimed to identify ictal EEG patterns that represent the epileptogenic zone by using subdural electrodes placed over the MRI-visible FCD lesion. METHODS: We selected seven patients with frontal lobe epilepsy caused by pathologically proven FCD type IIb who underwent preoperative intracranial EEG evaluation with subdural electrodes followed by resection surgery with seizure-free outcome...
May 25, 2017: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/28549335/microstructural-alterations-of-white-matter-in-juvenile-myoclonic-epilepsy
#13
Jinnan Gong, Xuebin Chang, Sisi Jiang, Benjamin Klugah-Brown, Song Tan, Dezhong Yao, Cheng Luo
Juvenile myoclonic epilepsy (JME) is a common type of idiopathic generalized epilepsy that is characterized by myoclonic jerks of the upper limbs and generalized tonic-clonic seizures. Frontal cognitive dysfunctions and abnormal coupling of the thalamocortical system have been found in neuropsychological and neuroimaging studies. This study intended to explore white matter (WM) measurement changes in JME using MRI. Twenty-six patients with JME and 25 healthy controls (HC) were recruited for the acquisition of diffusion MRI and structural MRI data...
April 4, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28544889/juvenile-myoclonic-epilepsy-as-a-spectrum-disorder-a-focused-review
#14
REVIEW
Betül Baykan, Peter Wolf
In consequence of newer research juvenile myoclonic epilepsy (JME) is no longer seen as a homogeneous disease. The causes of the existing variance are only partially known yet. We discuss to what extent the phenotypical spectrum of this polygenetically determined disorder expresses genetically defined endophenotypes, or is due to mere quantitative differences in the expression of the core phenotype. Of the three common seizure types of JME, myoclonic, generalized tonic-clonic and absences, absences also occur independently and are strong candidates for an endophenotype...
July 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28535409/mesial-temporal-lobe-epilepsy-diminishes-functional-connectivity-during-emotion-perception
#15
Bettina K Steiger, Angela M Muller, Esther Spirig, Gianina Toller, Hennric Jokeit
OBJECTIVES: Unilateral mesial temporal lobe epilepsy (MTLE) has been associated with impaired recognition of emotional facial expressions. Correspondingly, imaging studies showed decreased activity of the amygdala and cortical face processing regions in response to emotional faces. However, functional connectivity among regions involved in emotion perception has not been studied so far. METHODS: To address this, we examined intrinsic functional connectivity (FC) modulated by the perception of dynamic fearful faces among the amygdala and limbic, frontal, temporal and brainstem regions...
August 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28532712/photosensitivity-and-epilepsy-current-concepts-and-perspectives-a-narrative-review
#16
REVIEW
A Martins da Silva, Bárbara Leal
The authors review the influence of photic stimuli on the generation of epileptic seizures, addressing the first descriptions of the phenomenon and its subsequent exploration. Initially defined in the 1950's, links between intermittent photic stimulation (IPS) and seizures were well understood by the 1970. Since then the increasing exposure to photic stimuli associated with modern life (for instance through TVs, patterns, computer games and electronic instruments with flickering displays) has led to an increased interest in this issue...
April 5, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28531301/a-political-case-of-penetrating-cranial-trauma-the-injury-of-james-scott-brady
#17
Richard Menger, Piyush Kalakoti, Rimal Hanif, Osama Ahmed, Anil Nanda, Bharat Guthikonda
James Brady, the White House press secretary during President Ronald Reagan's first term in office, was 1 of 4 people (including the President) wounded during an attempted assassination attempt on President Reagan's life on March 30, 1981. John Hinckley, Jr. was found not guilty of this attempt by reason of insanity. The assassination attempt was a ploy by Hinckley, Jr. to impress the actress Jodie Foster. Brady was the most seriously injured of the 4 who were wounded. He suffered a gunshot wound to the left forehead that traveled through the left frontal lobe, corpus callosum, and then into the right frontal and temporal lobes...
May 22, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28520633/insular-cortex-surgery-for-the-treatment-of-refractory-epilepsy
#18
Marec von Lehe, Yaroslav Parpaley
Focal epilepsy originating from the insular cortex is rare. One reason is the small amount of cortical tissue compared with other lobes of the brain. However, the incidence of insular epilepsy might be underestimated because of diagnostic difficulties. The semiology and the surface EEG are often not meaningful or even misleading, and elaborated imaging might be necessary. The close connections of the insular cortex with other potentially epileptogenic areas, such as the temporal lobe or frontal/central cortex, is increasingly recognized as possible reason for failure of epilepsy surgery for temporal or extratemporal seizures...
July 2017: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/28520631/operculo-insular-epilepsy-scalp-and-intracranial-electroencephalographic-findings
#19
Ariel Levy, Thi Phuoc Yen Tran, Olivier Boucher, Alain Bouthillier, Dang Khoa Nguyen
PURPOSE: Operculo-insular seizures are heterogeneous and may resemble seizures originating from the temporal, frontal, or parietal lobe. Although surface and invasive EEG recordings are often necessary to detect operculo-insular seizures, electrophysiological features of operculo-insular epilepsies remain poorly characterized. This study describes the EEG findings of patients with operculo-insular epilepsy. METHODS: We reviewed electrophysiological data of all patients (n = 9) with operculo-insular seizures revealed by intracranial EEG and for whom operculo-insular epilepsy was confirmed by good seizure outcome after resective or radiosurgery at our center between 2005 and 2013...
May 16, 2017: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/28516076/primary-central-nervous-system-vasculitis-mimicking-a-cortical-brain-tumor-a-case-report
#20
Joo-Seok Lee, Tae-Young Jung, Kyung-Hwa Lee, Seul-Kee Kim
We report a case of primary central nervous system vasculitis (PCNSV) mimicking a cortical brain tumor. A 25-year-old woman presented with a 2-week history of headache and transient right hemiparesis. Brain magnetic resonance imaging (MRI) revealed a cortical-involving lesion on the left frontal lobe. The 6-cm sized lesion showed low signal intensity on T1-weighted images and high signal intensity on T2-weighted images. The lesion had continual linear enhancement on the subcortical white matter and leptomeninges...
April 2017: Brain Tumor Research and Treatment
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