1,024 results match your criteria: "Heemstede; Leiden University Medical Center S.C.; Huygens & Versteegh M.V.[Affiliation]"

High frequency oscillations associate with neuroinflammation in low-grade epilepsy associated tumors.

Clin Neurophysiol

January 2022

Department of Neurology and Neurosurgery, UMC Utrecht Brain Center, University Medical Center Utrecht, Heidelberglaan 100, 3584CX Utrecht, the Netherlands; Stichting Epilepsie Instellingen Nederland, Achterweg 2, 2103SW Heemstede, the Netherlands.

Objective: High frequency oscillations (HFOs) in intraoperative electrocorticography (ioECoG) are thought to be generated by hyperexcitable neurons. Inflammation may promote neuronal hyperexcitability. We investigated the relation between HFOs and inflammation in tumor-related epilepsy.

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Optimising epilepsy care throughout the Afghan refugee crisis.

Lancet

October 2021

Oxford Epilepsy Research Group, NIHR Biomedical Research Centre, Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, Oxford OX3 9DU, UK; Department of Psychiatry, University of Oxford, Oxford, UK; KEMRI-Wellcome Trust Research Programme, Centre for Geographic Medicine Research-Coast, Kilifi, Kenya.

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Patients with narcolepsy or idiopathic hypersomnia (IH) are at increased risk of driving accidents. Both excessive daytime sleepiness, i.e.

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Late-life terminal seizure freedom in drug-resistant epilepsy: "Burned-out epilepsy".

J Neurol Sci

December 2021

Department of Clinical and Experimental Epilepsy, UCL Queen Square Institute of Neurology, London WC1N 3BG & Chalfont Centre for Epilepsy, Chalfont St Peter SL9 0RJ, United Kingdom; Stichting Epilepsie Instellingen Nederland (SEIN), Achterweg 5, Heemstede 2103SW, Netherlands; Department of Neurology, West China Hospital & Institute of Brain Science & Brain-inspired Technology, Sichuan University, Chengdu 610041, China. Electronic address:

The course of established epilepsy in late life is not fully known. One key question is whether the resolution of an epileptic diathesis is a natural outcome in some people with long-standing epilepsy. We investigated this with a view to generating a hypothesis.

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Effects of the COVID-19 pandemic on medication adherence: In the case of antiseizure medications, A scoping review.

Seizure

December 2021

Department of Neurology, West of China Hospital, Sichuan University, Chengdu, China; NIHR University College London Hospitals Biomedical Research Centre, UCL Queen Square Institute of Neurology, London WC1N 3BG; Chalfont Centre for Epilepsy, Chalfont St Peter, Buckinghamshire, UK; Stichting Epilepsie Instellingen Nederland (SEIN), Heemstede, Netherlands.

Unlabelled: Since early 2020, an unprecedented public global health emergency caused by coronavirus (COVID-19) resulted in national governments' imposing confinement measures. Lockdowns and isolation during pandemics complicate disease management and medication adherence. Chronic conditions, such as epilepsy, require linear adherence patterns to prevent breakthrough seizures and to reduce the risk of sudden unexpected death.

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Epileptic networks are intimately connected with the autonomic nervous system, as exemplified by a plethora of ictal (during a seizure) autonomic manifestations, including epigastric sensations, palpitations, goosebumps and syncope (fainting). Ictal autonomic changes might serve as diagnostic clues, provide targets for seizure detection and help us to understand the mechanisms that underlie sudden unexpected death in epilepsy (SUDEP). Autonomic alterations are generally more prominent in focal seizures originating from the temporal lobe, demonstrating the importance of limbic structures to the autonomic nervous system, and are particularly pronounced in focal-to-bilateral and generalized tonic-clonic seizures.

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Distinct DNA Methylation Patterns of Subependymal Giant Cell Astrocytomas in Tuberous Sclerosis Complex.

Cell Mol Neurobiol

November 2022

Department of Neuro Pathology, Amsterdam UMC, Location AMC, University of Amsterdam, Meibergdreef 9, 1105, Amsterdam, The Netherlands.

Tuberous sclerosis complex (TSC) is a monogenic disorder caused by mutations in either the TSC1 or TSC2 gene, two key regulators of the mechanistic target of the rapamycin complex pathway. Phenotypically, this leads to growth and formation of hamartomas in several organs, including the brain. Subependymal giant cell astrocytomas (SEGAs) are low-grade brain tumors commonly associated with TSC.

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The impact of COVID-19 on epilepsy care: Perspectives from UK healthcare workers.

Epilepsy Behav Rep

September 2021

Oxford Epilepsy Research Group, NIHR Biomedical Research Centre, Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, Oxford OX3 9DU, UK.

The COVID-19 pandemic has created an immense pressure on healthcare providers, resulting in a shift to remote consultations and the redeployment of healthcare workers (HCWs). We present survey data from the United Kingdom (UK) HCWs to outline how changes in healthcare provision impact clinicians' wellbeing and ability to provide adequate care. We designed an online survey to gather the experiences of HCWs providing care to people with epilepsy.

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The pathophysiology of vasovagal syncope: Novel insights.

Auton Neurosci

December 2021

Department of Neurology, Leiden University Medical Centre, Leiden, the Netherlands; Stichting Epilepsie Instellingen Nederland, Heemstede, the Netherlands.

The pathophysiology of vasovagal syncope (VVS) is reviewed, focusing on hemodynamic aspects. Much more is known about orthostatic than about emotional VVS, probably because the former can be studied using a tilt table test (TTT). Recent advances made it possible to quantify the relative contributions of the three factors that control blood pressure: heart rate (HR), stroke volume (SV) and total peripheral resistance (TPR).

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Background: No systemic treatment has been established for meningioma progressing after local therapies.

Methods: This randomized, multicenter, open-label, phase II study included adult patients with recurrent WHO grade 2 or 3 meningioma. Patients were 2:1 randomly assigned to intravenous trabectedin (1.

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Heart Rate Controversies in Epilepsy: Autonomic Metrics and Predictions.

Neurology

December 2021

From the Department of Neurology (R.D.T.), Leiden University Medical Centre, the Netherlands; UCL Queen Square Institute of Neurology (R.D.T., J.W.S.), London; Chalfont Centre for Epilepsy (R.D.T., J.W.S.), Chalfont St Peter, Bucks, UK; SEIN-Stichting Epilepsie Instellingen Nederland (R.D.T., J.W.S.), Heemstede, the Netherlands; and Department of Neurology (J.W.S.), West China Hospital, Sichuan University, Chengdu, China.

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Combination lipid-lowering therapy as first-line strategy in very high-risk patients.

Eur Heart J

February 2022

Department of Vascular Medicine, Amsterdam University Medical Centers, location AMC, University of Amsterdam, Meibergdreef 9, Amsterdam 1105AZ, the Netherlands.

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This protocol describes an innovative study to investigate the relationship between sleep, shift work and the immune response to severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2; coronavirus disease 2019 [COVID-19]) vaccination. As the COVID-19 pandemic is a global crisis with devastating health, social and economic impacts, there is a pressing need for effective vaccination programmes. Previous influenza and hepatitis vaccination studies suggest that lack of sleep can negatively alter immune responsiveness, while circadian misalignment most likely may also play an important role in the immune response to vaccination.

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Aim: To describe the evolution of electroencephalogram (EEG) characteristics in infants with tuberous sclerosis complex (TSC) and the relationship with neurodevelopmental outcome at 24 months.

Method: Eighty-three infants were enrolled in the EPISTOP trial and underwent serial EEG follow-up until the age of 24 months (males n=45, females n=37, median age at enrolment 28d, interquartile range 14-54d). Maturation of the EEG background and epileptiform discharges were compared between the TSC1 and TSC2 variants and between preventive and conventional groups respectively.

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Introduction: Caring for a child with epilepsy has a significant impact on parental quality of life. Seizure unpredictability and complications, including sudden unexpected death in epilepsy (SUDEP), may cause high parental stress and increased anxiety. Nocturnal supervision with seizure detection devices may lower SUDEP risk and decrease parental burden of seizure monitoring, but little is known about their added value in family homes.

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Structural assessment of thalamus morphology in brain disorders: A review and recommendation of thalamic nucleus segmentation and shape analysis.

Neurosci Biobehav Rev

December 2021

Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Anatomy and Neurosciences, Amsterdam Neuroscience, De Boelelaan 1117, Amsterdam, the Netherlands. Electronic address:

The thalamus is a central brain structure crucially involved in cognitive, emotional, sensory, and motor functions and is often reported to be involved in the pathophysiology of neurological and psychiatric disorders. The functional subdivision of the thalamus warrants morphological investigation on the level of individual subnuclei. In addition to volumetric measures, the investigation of other morphological features may give additional insights into thalamic morphology.

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Cellular Substrates of Functional Network Integration and Memory in Temporal Lobe Epilepsy.

Cereb Cortex

May 2022

Department of Integrative Neurophysiology, Center for Neurogenomics and Cognitive Research (CNCR), Vrije Universiteit Amsterdam, Amsterdam Neuroscience, 1081 HV, Amsterdam, the Netherlands.

Temporal lobe epilepsy (TLE) patients are at risk of memory deficits, which have been linked to functional network disturbances, particularly of integration of the default mode network (DMN). However, the cellular substrates of functional network integration are unknown. We leverage a unique cross-scale dataset of drug-resistant TLE patients (n = 31), who underwent pseudo resting-state functional magnetic resonance imaging (fMRI), resting-state magnetoencephalography (MEG) and/or neuropsychological testing before neurosurgery.

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Objective: This study was undertaken to determine reasons for adults with drug-resistant focal epilepsy who undergo presurgical evaluation not proceeding with surgery, and to identify predictors of this course.

Methods: We retrospectively analyzed data on 617 consecutive individuals evaluated for epilepsy surgery at a tertiary referral center between January 2015 and December 2019. We compared the characteristics of those in whom a decision not to proceed with surgical treatment was made with those who underwent definitive surgery in the same period.

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Although traumatic brain injury (TBI) acutely disrupts the cortex, most TBI-related disabilities reflect secondary injuries that accrue over time. The thalamus is a likely site of secondary damage because of its reciprocal connections with the cortex. Using a mouse model of mild TBI (mTBI), we found a chronic increase in C1q expression specifically in the corticothalamic system.

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Article Synopsis
  • Researchers wanted to find out what causes seizures after a type of stroke called an acute ischemic stroke and if certain treatments help.* -
  • They looked at data from 4,229 adults and found that more severe strokes and specific types of strokes are linked to a higher chance of having seizures afterward.* -
  • The study showed that common treatments for strokes didn't change the risk of getting seizures or epilepsy after having a stroke.*
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Impact of the COVID-19 pandemic on people with epilepsy: Findings from the Brazilian arm of the COV-E study.

Epilepsy Behav

October 2021

Oxford Epilepsy Research Group, NIHR Biomedical Research Centre, Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, Oxford OX3 9DU, UK. Electronic address:

Unlabelled: The COVID-19 pandemic has had an unprecedented impact on people and healthcare services. The disruption to chronic illnesses, such as epilepsy, may relate to several factors ranging from direct infection to secondary effects from healthcare reorganization and social distancing measures.

Objectives: As part of the COVID-19 and Epilepsy (COV-E) global study, we ascertained the effects of COVID-19 on people with epilepsy in Brazil, based on their perspectives and those of their caregivers.

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CXCL1-CXCR1/2 signaling is induced in human temporal lobe epilepsy and contributes to seizures in a murine model of acquired epilepsy.

Neurobiol Dis

October 2021

Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Italy. Electronic address:

CXCL1, a functional murine orthologue of the human chemokine CXCL8 (IL-8), and its CXCR1 and CXCR2 receptors were investigated in a murine model of acquired epilepsy developing following status epilepticus (SE) induced by intra-amygdala kainate. CXCL8 and its receptors were also studied in human temporal lobe epilepsy (TLE). The functional involvement of the chemokine in seizure generation and neuronal cell loss was assessed in mice using reparixin (formerly referred to as repertaxin), a non-competitive allosteric inhibitor of CXCR1/2 receptors.

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[Diagnosing and treating sleep for the general practitioner].

Ned Tijdschr Geneeskd

August 2021

LUMC, afd. Neurologie, Leiden en Slaap-Waakcentrum SEIN, Heemstede.

Sleep disorders are prevalent and have large impact on well-being and functioning. Based on the presenting symptoms, the general practitioner can often diagnose and treat uncomplicated sleep disorders. An overview of the most common sleeping complaints, underlying diagnoses and useful treatments is given.

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