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Epilepsy Surgery

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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
#1
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/28724747/interleukin-1-receptor-in-seizure-susceptibility-after-traumatic-injury-to-the-pediatric-brain
#2
Bridgette D Semple, Terence J O'Brien, Kayleen Gimlin, David K Wright, Shi Eun Kim, Pablo M Casillas-Espinosa, Kyria M Webster, Steven Petrou, Linda J Noble-Haeusslein
Epilepsy after pediatric traumatic brain injury (TBI) is associated with poor quality of life. This study aimed to characterize post-traumatic epilepsy in a mouse model of pediatric brain injury, and to evaluate the role of interleukin-1 (IL-1) signaling as a target for pharmacological intervention. Male mice received a controlled cortical impact or sham surgery at postnatal day 21, approximating a toddler-aged child. Mice were treated acutely with an IL-1 receptor antagonist (IL-1Ra; 100 mg/kg s.c.) or vehicle...
July 19, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28718878/deep-brain-and-cortical-stimulation-for-epilepsy
#3
REVIEW
Mathieu Sprengers, Kristl Vonck, Evelien Carrette, Anthony G Marson, Paul Boon
BACKGROUND: Despite optimal medical treatment, including epilepsy surgery, many epilepsy patients have uncontrolled seizures. Since the 1970s interest has grown in invasive intracranial neurostimulation as a treatment for these patients. Intracranial stimulation includes both deep brain stimulation (DBS) (stimulation through depth electrodes) and cortical stimulation (subdural electrodes). This is an updated version of a previous Cochrane review published in 2014. OBJECTIVES: To assess the efficacy, safety and tolerability of DBS and cortical stimulation for refractory epilepsy based on randomized controlled trials (RCTs)...
July 18, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28716297/on-the-relative-merits-of-invasive-and-non-invasive-pre-surgical-brain-mapping-new-tools-in-ablative-epilepsy-surgery
#4
Andrew C Papanicolaou, Roozbeh Rezaie, Shalini Narayana, Asim F Choudhri, Abbas-Babajani-Feremi, Frederick A Boop, James W Wheless
Cortical Stimulation Mapping (CSM) and the Wada procedure have long been considered the gold standard for localizing motor and language-related cortical areas and for determining the language and memory-dominant hemisphere, respectively. In recent years, however, non-invasive methods such as magnetoencephalography (MEG), functional magnetic resonance imaging (fMRI), and transcranial magnetic stimulation (TMS) have emerged as promising alternatives to the aforementioned procedures, particularly in cases where the invasive localization of eloquent cortex has proven to be challenging...
July 3, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28715490/patterns-of-care-of-brain-tumor-related-epilepsy-a-cohort-study-done-in-italian-epilepsy-center
#5
Marta Maschio, Ettore Beghi, Marina M L Casazza, Gabriella Colicchio, Cinzia Costa, Paola Banfi, Stefano Quadri, Paolo Aloisi, Anna Teresa Giallonardo, Carla Buttinelli, Giada Pauletto, Salvatore Striano, Andrea Salmaggi, Riccardo Terenzi, Ornella Daniele, Giovanni Crichiutti, Francesco Paladin, Rosario Rossi, Giulia Prato, Federico Vigevano, Roberto De Simone, Federica Ricci, Marina Saladini, Fabrizio Monti, Susanna Casellato, Tiziano Zanoni, Diana Giannarelli, Giuliano Avanzini, Umberto Aguglia
Epilepsy is the most common comorbidity in patients with brain tumors. STUDY AIMS: To define characteristics of brain tumor-related epilepsy (BTRE) patients and identify patterns of care. Nationwide, multicenter retrospective cohort study. Medical records of BTRE patients seen from 1/1/2010 to 12/31/2011, followed for at least one month were examined. Information included age, sex, tumor type/treatments, epilepsy characteristics, antiepileptic drugs (AEDs). Time to modify first AED due to inefficacy and/or toxicity was assessed with the Kaplan-Meier method and Cox proportional hazard models were used to identify predictors of treatment outcome...
2017: PloS One
https://www.readbyqxmd.com/read/28714074/altered-metabolomic-genomic-signature-a-potential-noninvasive-biomarker-of-epilepsy
#6
Helen C Wu, Fabien Dachet, Farhad Ghoddoussi, Shruti Bagla, Darren Fuerst, Jeffrey A Stanley, Matthew P Galloway, Jeffrey A Loeb
OBJECTIVE: This study aimed to identify noninvasive biomarkers of human epilepsy that can reliably detect and localize epileptic brain regions. Having noninvasive biomarkers would greatly enhance patient diagnosis, patient monitoring, and novel therapy development. At the present time, only surgically invasive, direct brain recordings are capable of detecting these regions with precision, which severely limits the pace and scope of both clinical management and research progress in epilepsy...
July 17, 2017: Epilepsia
https://www.readbyqxmd.com/read/28705474/rf-ablation-in-periventricular-heterotopia-related-epilepsy
#7
Massimo Cossu, Laura Mirandola, Laura Tassi
Drug-resistant focal epilepsy is a common occurrence in patients with gray matter nodular heterotopia (NH), and surgical treatment is often considered in these cases. NH-related epileptogenicity is sustained by complex networks, which may involve the nodules and extralesional cortex in various combinations. Therefore, invasive EEG is usually required to identify the structures involved in seizure generation. It has been reported that surgery may be effective in cases with unilateral lesions, whereas bilateral cases are not optimal candidates for surgical success...
July 3, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28703275/predictors-of-cognitive-function-in-patients-with-hypothalamic-hamartoma-following-stereotactic-radiofrequency-thermocoagulation-surgery
#8
Masaki Sonoda, Hiroshi Masuda, Hiroshi Shirozu, Yosuke Ito, Kohei Akazawa, Eishi Asano, Shigeki Kameyama
OBJECTIVE: To determine the predictors of cognitive function in patients with drug-resistant gelastic seizures (GS) related to hypothalamic hamartoma (HH) before and after stereotactic radiofrequency thermocoagulation surgery (SRT). METHODS: We studied 88 patients with HH who underwent SRT between October 1997 and December 2014. Patients received neuropsychological tests preoperatively and postoperatively. Based on the preoperative measures, patients were categorized as "high-functioning" (full-scale intelligence quotient [FSIQ] ≥70; n = 48) and "low-functioning" group (FSIQ <70; n = 40)...
July 13, 2017: Epilepsia
https://www.readbyqxmd.com/read/28702686/disparities-in-epilepsy-surgery-in-the-united-states-of-america
#9
Iván Sánchez Fernández, Christopher Stephen, Tobias Loddenkemper
The aim is to describe the epidemiology of epilepsy surgery in children and adults in the United States. We performed a descriptive study of the National Inpatient Sample (NIS) for the year 2012 and the Kids' Inpatient Database (KID) for the period 2010-2012, the largest all-payer databases on inpatient data in the USA. These databases estimate 97% of all inpatient hospital discharges in the USA. In the KID, 12,899 (0.2%) of admission records had brain surgery and 600 of the 4900 (12.2%) admissions with focal refractory epilepsy underwent epilepsy surgery...
July 12, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/28702346/automatic-detection-and-visualisation-of-meg-ripple-oscillations-in-epilepsy
#10
Nicole van Klink, Frank van Rosmalen, Jukka Nenonen, Sergey Burnos, Liisa Helle, Samu Taulu, Paul Lawrence Furlong, Maeike Zijlmans, Arjan Hillebrand
High frequency oscillations (HFOs, 80-500 Hz) in invasive EEG are a biomarker for the epileptic focus. Ripples (80-250 Hz) have also been identified in non-invasive MEG, yet detection is impeded by noise, their low occurrence rates, and the workload of visual analysis. We propose a method that identifies ripples in MEG through noise reduction, beamforming and automatic detection with minimal user effort. We analysed 15 min of presurgical resting-state interictal MEG data of 25 patients with epilepsy. The MEG signal-to-noise was improved by using a cross-validation signal space separation method, and by calculating ~ 2400 beamformer-based virtual sensors in the grey matter...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28698761/vagus-nerve-stimulation
#11
REVIEW
Hakan Ekmekçi, Hülagu Kaptan
BACKGROUND: The vagus nerve stimulation (VNS) is an approach mainly used in cases of intractable epilepsy despite all the efforts. Also, its benefits have been shown in severe cases of depression resistant to typical treatment. AIM: The aim of this study was to present current knowledge of vagus nerve stimulation. MATERIAL AND METHODS: A new value has emerged just at this stage: VNS aiming the ideal treatment with new hopes. It is based on the placement of a programmable generator on the chest wall...
June 15, 2017: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28694041/real-time-three-dimensional-3d-visualization-of-fusion-image-for-accurate-subdural-electrodes-placement-of-epilepsy-surgery
#12
Ayataka Fujimoto, Tohru Okanishi, Sotaro Kanai, Keishiro Sato, Mitsuyo Nishimura, Hideo Enoki
INTRODUCTION: The perfect match between pre-surgical estimated seizure onset zone and subdural electrodes (SEs) position is requested for epilepsy surgery. However, post-surgical neuro images sometimes disappoint physicians due to SEs malposition. To place SEs, we used to use intraoperative photograph and fluoroscopy. With this procedure, we just recognized approximate location of SEs during surgery. The purpose of the study is to perform precise SEs location intraoperatively using intra operative computer tomography (CT) and image-guidance...
July 7, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28689344/neurological-results-of-the-modified-treatment-of-epilepsy-by-stimulation-of-the-vagus-nerve
#13
Michael Vaiman, Eli Heyman, Gad Lotan
INTRODUCTION: The vagus nerve stimulation (VNS) is used for treatment of drug-resistant epilepsy but laryngeal side effects are common. We tried to improve VNS by modifying the implantation procedure. The aim was to reduce the rate of side effects that have prevented using VNS to its full capacity. METHODS: We operated on 74 pediatric patients for VNS device implantation using a modified surgical protocol incorporating lower neck incision for electrode placement and 36 patients who were operated by standard technique were used for control group...
July 8, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28687122/evaluation-of-ex-vivo-9-4t-mri-in-post-surgical-specimens-from-temporal-lobe-epilepsy-patients
#14
Benjamin Y M Kwan, Fateme Salehi, Ryan Kope, Donald H Lee, Manas Sharma, Robert Hammond, Jorge G Burneo, David Steven, Terry Peters, Ali R Khan
PURPOSE: This study evaluates hippocampal pathology through usage of ultra-high field 9.4T ex-vivo imaging of resected surgical specimens in patients who have undergone temporal lobe epilepsy surgery. METHOD AND MATERIALS: This is a retrospective interpretation of prospectively acquired data. MRI scanning of resected surgical specimens from patients who have undergone temporal lobe epilepsy surgery was performed on a 9.4T small bore Varian MR magnet. Structural images employed a balanced steady-state free precession sequence (TrueFISP)...
July 4, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28684949/outcomes-of-epilepsy-surgery-for-epileptic-networks
#15
COMMENT
Lara Jehi
No abstract text is available yet for this article.
May 2017: Epilepsy Currents
https://www.readbyqxmd.com/read/28684945/epilepsy-surgery-in-tuberous-sclerosis-complex-in-pursuit-of-the-epileptogenic-center-s
#16
COMMENT
Ajay Gupta
No abstract text is available yet for this article.
May 2017: Epilepsy Currents
https://www.readbyqxmd.com/read/28677591/a-realistic-multimodal-modeling-approach-for-the-evaluation-of-distributed-source-analysis-application-to-sloreta
#17
Delphine Cosandier-Rimélé, Georgia Ramantani, Josef Zentner, Andreas Schulze-Bonhage, Matthias Duempelmann
OBJECTIVE: Electrical Source Localization (ESL) deriving from scalp EEG and, in recent years, from intracranial EEG (iEEG), is an established method in epilepsy surgery workup. We aimed to validate the distributed ESL derived from scalp EEG and iEEG, particularly regarding the spatial extent of the source, using a realistic epileptic spike activity simulator. APPROACH: ESL was applied to the averaged scalp EEG and iEEG spikes of two patients with drug-resistant structural epilepsy...
July 5, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28676892/methodology-outcome-safety-and-in-vivo-accuracy-in-traditional-frame-based-stereoelectroencephalography
#18
Lars E van der Loo, Olaf E M G Schijns, Govert Hoogland, Albert J Colon, G Louis Wagner, Jim T A Dings, Pieter L Kubben
BACKGROUND: Stereoelectroencephalography (SEEG) is an established diagnostic technique for the localization of the epileptogenic zone in drug-resistant epilepsy. In vivo accuracy of SEEG electrode positioning is of paramount importance since higher accuracy may lead to more precise resective surgery, better seizure outcome and reduction of complications. OBJECTIVE: To describe experiences with the SEEG technique in our comprehensive epilepsy center, to illustrate surgical methodology, to evaluate in vivo application accuracy and to consider the diagnostic yield of SEEG implantations...
July 5, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28674208/younger-age-at-surgery-and-lesser-seizure-frequency-as-prognostic-factors-for-favorable-seizure-related-outcome-after-glioma-resection-in-adults
#19
Zhe-Ren Tan, Xiao-Yan Long, Zhi-Quan Yang, Jun Huang, Qing-Yuan Hu, Hao-Dong Yang, Guo-Liang Li
The identification of variables predictive of good seizure control following surgical tumor resection in adult glioma patients with tumor-related epilepsy would greatly benefit treatment decisions. Therefore, we analyzed the clinical data of adult patients with tumor-related epilepsy who underwent tumor resection at our institute between November 2011 and August 2013. Patients were divided into seizure-free (Engel Ia) and unfavorable outcome groups (Engel Ib-IV), and potential prognostic factors were analyzed...
June 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28673671/relationship-among-clinical-pathological-and-bio-molecular-features-in-low-grade-epilepsy-associated-neuroepithelial-tumors
#20
Gianfranco Vornetti, Gianluca Marucci, Corrado Zenesini, Dario de Biase, Roberto Michelucci, Paolo Tinuper, Giovanni Tallini, Marco Giulioni
The aim of this study was to evaluate the relationship between molecular markers and clinicopathological features in patients operated on for low-grade epilepsy-associated neuroepithelial tumors. Molecular-genetic signatures are becoming increasingly important in characterizing these lesions, which represent the second most common cause of focal epilepsy in patients undergoing epilepsy surgery. Data from 22 patients operated on for histopathologically confirmed low-grade epilepsy-associated neuroepithelial tumors were retrospectively collected...
June 30, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
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