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Outcome of Epilepsy Surgery

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Procedure-Related Temporal Infarct After Retractorless Transsylvian Selective Amygdalohippocampectomy and Impact on 2-Year Epilepsy Outcome.

Chih-Hsiang Liao, Shao-Ching Chen, Hsiang-Yu Yu, Chun-Fu Lin, Chien-Chen Chou, Cheng-Chia Lee, Chung-Jung Lin, Sanford P C Hsu, Yang-Hsin Shih,

BACKGROUND:Selective amygdalohippocampectomy (SAH) is designed to treat patients with mesial temporal lobe epilepsy (MTLE). OBJECTIVE:To determine the volume and impact of temporal lobe infarction after retractorless transsylvian SAH (en bloc resection of the hippocampus) that have not been reported. METHODS:A retrospective analysis of patients treated with retractorless transsylvian SAH. Infarctions ... Read more >>

Oper Neurosurg (Hagerstown) (Operative neurosurgery (Hagerstown, Md.))
[2020, 18(4):430-437]

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Eight-Year Experience With 3-T Intraoperative MRI Integration in Focal Pediatric Epilepsy Surgery: Impact on Extent of Resection, Residual Volumes, and Seizure Outcomes.

Hadeel Eid, Gabriel Crevier-Sorbo, Jeremy T Moreau, Christine Saint-Martin, Mohamed S Elzawawi, Waleed A Mousa, Roy W R Dudley, Nagwa Wilson,

OBJECTIVE. The purpose of this study was to investigate the influence of 3-T intraoperative MRI (ioMRI) on the extent of resection of pediatric focal epileptogenic lesions, residual lesion volumes, and postoperative seizure outcomes. MATERIALS AND METHODS. All surgical procedures for focal epilepsy from 2003 to 2017 were retrospectively reviewed. Patients ... Read more >>

AJR Am J Roentgenol (AJR. American journal of roentgenology)
[2020, :1-8]

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Impact of epilepsy surgery on quality of life and burden of caregivers in children and adolescents.

Suenia Timotheo Figueiredo Leal, Marcelo Volpon Santos, Ursula Thomé, Helio Rubens Machado, Sara Escorsi-Rosset, Antônio Carlos Dos Santos, Lauro Wichert-Ana, João Pereira Leite, Regina Maria França Fernandes, Ameriko Ceiki Sakamoto, Ana Paula Andrada Hamad,

OBJECTIVE:The objective of this study was to analyze the impact of pediatric epilepsy surgery on the quality of life (QOL), determining whether patients improve, worsen, or maintain their preoperative patterns, as it relates to the burden of caregivers, as well as evaluating potential related factors, from both the children and ... Read more >>

Epilepsy Behav (Epilepsy & behavior : E&B)
[2020, 106:106961]

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Magnetoencephalography resting state connectivity patterns as indicatives of surgical outcome in epilepsy patients.

Ümit Aydin, Giovanni Pellegrino, Obaï Bin Ka'b Ali, Chifaou Abdallah, François Dubeau, Jean-Marc Lina, Eliane Kobayashi, Christophe Grova,

OBJECTIVE:Focal epilepsy is a disorder affecting several brain networks; however, epilepsy surgery usually targets a restricted region, the so-called epileptic focus. There is a growing interest in embedding resting state (RS) connectivity analysis into pre-surgical workup. APPROACH:In this retrospective study, we analyzed Magnetoencephalography (MEG) long-range RS functional connectivity patterns in ... Read more >>

J Neural Eng (Journal of neural engineering)
[2020, :]

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Magnetic Resonance Imaging-Guided Laser Interstitial Thermal Therapy for Epilepsy: Systematic Review of Technique, Indications, and Outcomes.

Brett E Youngerman, Akshay V Save, Guy M McKhann,

BACKGROUND:For patients with focal drug-resistant epilepsy (DRE), surgical resection of the epileptogenic zone (EZ) may offer seizure freedom and benefits for quality of life. Yet, concerns remain regarding invasiveness, morbidity, and neurocognitive side effects. Magnetic resonance-guided laser interstitial thermal therapy (MRgLITT) has emerged as a less invasive option for stereotactic ... Read more >>

Neurosurgery (Neurosurgery)
[2020, 86(4):E366-E382]

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Long-term outcomes of reoperations in epilepsy surgery.

Ruta Yardi, Marcia E Morita-Sherman, Zachary Fitzgerald, Vineet Punia, James Bena, Shannon Morrison, Imad Najm, William Bingaman, Lara Jehi,

OBJECTIVE:To analyze longitudinal seizure outcomes following epilepsy surgery, including reoperations, in patients with intractable focal epilepsy. METHODS:Clinicoradiological characteristics of patients who underwent epilepsy surgery from 1995 to 2016 with follow-up of ≥1 year were reviewed. In patients undergoing reoperations, the latest resection was considered the index surgery. The primary outcome was ... Read more >>

Epilepsia (Epilepsia)
[2020, 61(3):465-478]

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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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Investigatory pathway and principles of patient selection for epilepsy surgery candidates: a systematic review.

Arash Ghaffari-Rafi, Jose Leon-Rojas,

BACKGROUND:The predominant treatment for epilepsy is pharmacotherapy, yet 20-40% do not respond to anti-epileptic drugs. After becoming pharmacoresistant, some patients are worked-up to determine candidacy for epilepsy surgery. Despite the 2009 American Epilepsy Society guidelines, there is no broadly accepted criteria for the investigatory pathway and principles of patient selection ... Read more >>

BMC Neurol (BMC neurology)
[2020, 20(1):100]

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Predictors of seizure outcome for vagus nerve stimulation in children

Ji Phi, Jeyul Yang, Seung‐Ki Kim, Ki Kim, Jong Chae, Byung Lim,

<title>Abstract</title> <p> Purpose Vagus nerve stimulation (VNS) is a palliative treatment for intractable epilepsy. While the expected outcome of VNS is well known, the clinical predictors of outcome are not clearly defined. We investigated the predictors and seizure reduction rates of VNS in pediatric patients. Methods We retrospectively ... Read more >>

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Effects of hippocampus-sparing resections in the temporal lobe: Hippocampal atrophy is associated with a decline in memory performance.

Kathrin Wagner, Karin Gau, Birgitta Metternich, Maximilian J Geiger, Anne-Sophie Wendling, Navah E Kadish, Gitta Reuner, Hans Mayer, Irina Mader, Jürgen Beck, Josef Zentner, Horst Urbach, Andreas Schulze-Bonhage, Christoph P Kaller, Niels A Foit,

OBJECTIVE:In patients with temporal lobe epilepsy (TLE) with a nonlesional and nonepileptogenic hippocampus (HC), in order to preserve functionally intact brain tissue, the HC is not resected. However, some patients experience postoperative memory decline, possibly due to disruption of the extrahippocampal memory network and secondary hippocampal volume (HV) loss. The ... Read more >>

Epilepsia (Epilepsia)
[2020, :]

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Focal burst suppression on intra-operative electrocorticography does not affect the surgical outcome in patients with temporal lobe epilepsy.

Cuiping Xu, Tao Yu, Xiaohua Zhang, Guojun Zhang, Ping Zhuang, Yuping Wang, Yongjie Li,

OBJECTIVE:The aim of this study was to investigate the burst suppression (BS) pattern on intra-operative electrocorticography (ECoG) in patients with temporal lobe epilepsy (TLE) and the surgical outcome. PATIENTS AND METHODS:From January 2017 to June 2017, 45 patients with TLE underwent temporal lobe resection with intra-operative ECoG at the Beijing ... Read more >>

Clin Neurol Neurosurg (Clinical neurology and neurosurgery)
[2020, 193:105785]

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The cognitive costs, contraindications and complications of epilepsy surgery in adults.

Sallie Baxendale,

PURPOSE OF REVIEW:Access to epilepsy surgery is rapidly growing throughout the world. While it is an established and effective treatment for seizures, epilepsy surgery has the potential to exacerbate cognitive comorbidities of the condition. RECENT FINDINGS:Not all surgical patients experience a postoperative decline in cognitive function. Postoperative cognitive function depends ... Read more >>

Curr. Opin. Neurol. (Current opinion in neurology)
[2020, 33(2):207-212]

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Scalp ripples as prognostic biomarkers of epileptogenicity in pediatric surgery.

Eleonora Tamilia, Matilde Dirodi, Michel Alhilani, P Ellen Grant, Joseph R Madsen, Steven M Stufflebeam, Phillip L Pearl, Christos Papadelis,

OBJECTIVE:To assess the ability of high-density Electroencephalography (HD-EEG) and magnetoencephalography (MEG) to localize interictal ripples, distinguish between ripples co-occurring with spikes (ripples-on-spike) and independent from spikes (ripples-alone), and evaluate their localizing value as biomarkers of epileptogenicity in children with medically refractory epilepsy. METHODS:We retrospectively studied 20 children who underwent epilepsy ... Read more >>

Ann Clin Transl Neurol (Annals of clinical and translational neurology)
[2020, 7(3):329-342]

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Outcomes of stereoelectroencephalography exploration at an epilepsy surgery center.

Joseph Samuel Peedicail, Amal Almohawes, Walter Hader, Yves Starreveld, Shaily Singh, Colin Bruce Josephson, William Murphy, Paolo Federico, Samuel Wiebe, Neelan Pillay, ,

OBJECTIVES:Epilepsy surgery is offered in resistant focal epilepsy. Non-invasive investigations like scalp video EEG monitoring (SVEM) help delineate epileptogenic zone. Complex cases may require intracranial video EEG monitoring (IVEM). Stereoelectroencephalography (SEEG)-based intracerebral electrode implantation has better spatial resolution, lower morbidity, better tolerance, and superiority in sampling deep structures. Our objectives ... Read more >>

Acta Neurol. Scand. (Acta neurologica Scandinavica)
[2020, :]

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Stereo-EEG in Tuberous Sclerosis Complex.

Jun T Park, Guadalupe Fernandez-Baca Vaca,

A collaborative research team lead by an investigator from the Lyon Neuroscience Research Center and Lyon University Hospital and Lyon 1 University studied epileptogenicity of tuber and its surrounding cortex using stereoelectroencephalography (SEEG) in patients diagnosed with tuberous sclerosis complex (TSC) (genetic or clinical). ... Read more >>

Pediatr Neurol Briefs (Pediatric Neurology Briefs)
[2020, 34:6]

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Subsecond EEG-fMRI analysis for presurgical evaluation in focal epilepsy.

Yuji Ito, Satoshi Maesawa, Epifanio Bagarinao, Yu Okai, Daisuke Nakatsubo, Hiroyuki Yamamoto, Hiroyuki Kidokoro, Naotaka Usui, Jun Natsume, Minoru Hoshiyama, Toshihiko Wakabayashi, Gen Sobue, Norio Ozaki,

OBJECTIVE:The authors recently reported a novel subsecond analysis method of analyzing EEG-functional MRI (fMRI) to improve the detection rate of epileptic focus. This study aims to validate the utility of this method for presurgical evaluation in pharmacoresistant focal epilepsy. METHODS:Among 13 patients with focal epilepsy undergoing presurgical examinations including simultaneous ... Read more >>

J. Neurosurg. (Journal of neurosurgery)
[2020, :1-10]

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Safe Use of Infected Donor Organs in Kidney Transplantation.

Sara Barreto, Joana Martins, Cristina Outerelo, Joana Rego Silva, Pedro Bravo, Maria José Ferreira, Carlos Oliveira, Aura Ramos,

INTRODUCTION:Organ availability is limited in the face of the growing number of candidates. Using organs from individuals with an infection at the time of transplantation emerged as a possible but controversial solution. MATERIALS AND METHODS:Retrospective analysis of patients submitted to kidney transplantation in Hospital Garcia de Orta (Almada, Portugal) from ... Read more >>

Transplant. Proc. (Transplantation proceedings)
[2020, :]

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Editorial: Ketogenic Diet in Epilepsy and Associated Comorbidities: Clinical Efficacy and Mechanisms.

Tianfu Li, Jiong Qin, Xiang-Ping Chu,

Front Neurol (Frontiers in neurology)
[2020, 11:66]

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Predictors of Postoperative Seizure Outcome in Low Grade Glioma: From Volumetric Analysis to Molecular Stratification.

Tamara Ius, Giada Pauletto, Barbara Tomasino, Marta Maieron, Riccardo Budai, Miriam Isola, Daniela Cesselli, Christian Lettieri, Miran Skrap,

The importance of the extent of resection (EOR) has been widely demonstrated as the main predictor for survival, nevertheless its effect on tumor related epilepsy is less investigated. A total of 155 patients were enrolled after a first-line surgery for supratentorial Diffuse Low Grade Gliomas (DLGGs). Postoperative seizure outcome was ... Read more >>

Cancers (Basel) (Cancers)
[2020, 12(2):]

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Surgical histopathologic findings of 232 Chinese children cases with drug-resistant seizures.

Yao Kun, Duan Zejun, Zhou Jian, Zhai Feng, Liu Changqing, Qi Xueling,

OBJECTIVES:The drug-resistant seizures are characterized by frequent and severe onset of seizures in childhood. There is only little literature had extensively explored the types of pathological brain damage in Chinese children cases. The present study aims to investigate the histopathologic findings and seizure outcomes of drug-resistant seizures in cases of ... Read more >>

Brain Behav (Brain and behavior)
[2020, :e01565]

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Positive illusions determine quality of life in drug-resistant epilepsy.

Sarah J Wilson, Genevieve Rayner, Jessamae Pieters,

OBJECTIVE:Humans use a complex system of protective cognitive biases or "positive illusions" that foster emotional well-being and subjective quality of life. This study examined the role of positive illusions in patient adjustment to drug-resistant epilepsy and its surgical treatment. METHODS:One hundred fifty people participated, including 93 focal epilepsy patients being ... Read more >>

Epilepsia (Epilepsia)
[2020, 61(3):539-548]

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Predicting outcome of epilepsy surgery in clinical practice: Prediction models vs. clinical acumen.

Anne Katharina Fassin, Susanne Knake, Adam Strzelczyk, Colin B Josephson, Philipp S Reif, Anja Haag, Barbara Carl, Anke M Hermsen, Iris Gorny, Leona Möller, Axel Pagenstecher, Christopher Nimsky, Sebastian Bauer, Ulrich Sure, Katja Menzler, Felix Rosenow, Karl Martin Klein,

PURPOSE:Epilepsy surgery is an evidence-based treatment for drug-refractory focal epilepsy. We aimed to evaluate how well preoperative outcome estimates of epilepsy surgery in clinical practice correlated with postoperative outcome and to compare prediction by the clinical team with available scores (m-SFS, ESN). METHOD:Retrospective cohort study including patients with drug-refractory focal ... Read more >>

Seizure (Seizure)
[2020, 76:79-83]

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Seizure outcome of pediatric epilepsy surgery: Systematic review and meta-analyses.

Elysa Widjaja, Puneet Jain, Lindsay Demoe, Astrid Guttmann, George Tomlinson, Beate Sander,

OBJECTIVE:This systematic review and meta-analyses assessed seizure outcome following pediatric epilepsy surgery. METHODS:MEDLINE, EMBASE, and Cochrane were searched for pediatric epilepsy surgery original research from 1990 to 2017. The outcome was seizure freedom at 12 months or longer follow-up. Using random-effects models, the effect sizes for controlled studies, uncontrolled studies ... Read more >>

Neurology (Neurology)
[2020, 94(7):311-321]

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Localizing the epileptogenic zone.

Birgit Frauscher,

PURPOSE OF REVIEW:Epilepsy surgery is the therapy of choice for 30-40% of people with focal drug-resistant epilepsy. Currently only ∼60% of well selected patients become postsurgically seizure-free underlining the need for better tools to identify the epileptogenic zone. This article reviews the latest neurophysiological advances for EZ localization with emphasis ... Read more >>

Curr. Opin. Neurol. (Current opinion in neurology)
[2020, 33(2):198-206]

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Measure thrice, cut twice: On the benefit of reoperation for failed pediatric epilepsy surgery.

Nathan T Cohen, Julie M Ziobro, Dewi F Depositario-Cabacar, Kathryn Havens, Amy Kao, John M Schreiber, Tammy N Tsuchida, Tesfaye G Zelleke, Chima O Oluigbo, William D Gaillard,

OBJECTIVE:To determine whether clinical outcomes are improved after repeat surgery for medically refractory epilepsy in children. METHODS:This is a single-center retrospective cohort analysis of all patients who received repeat resective surgery for ongoing seizures from 2000-2017. From a total of 251 consecutive individual epilepsy surgical patients for focal resection, 53 ... Read more >>

Epilepsy Res. (Epilepsy research)
[2020, 161:106289]

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