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Bassetti CLA, Endres M, Sander A, Crean M, Subramaniam S, Carvalho V, Di Liberto G, Franco OH, Pijnenburg Y, Leonardi M, Boon P. The EAN Brain Health Strategy: One Brain, One Life, One Approach. Eur J Neurol 2022; 29:2559-2566. [PMID: 35538709 DOI: 10.1111/ene.15391] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 05/03/2022] [Accepted: 05/06/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND Brain health is essential for health, well-being productivity and creativity across the entire life. Its definition goes beyond the absence of disease embracing all cognitive, emotional, behavioural and social functions which are necessary to cope with life situations. METHODS The EAN Brain Health Strategy responds to the high and increasing burden of neurological disorders. It aims to develop a non-disease, non-age centred holistic and positive approach ('one brain, one life, one approach') to prevent neurological disorders (e.g., Alzheimer's disease and other dementias, stroke, epilepsy, headache/migraine, Parkinson's disease, multiple sclerosis, sleep disorders, brain cancer) but also to preserve brain health and promote recovery after brain damage. RESULTS The pillars of the EAN Brain Health strategy are: 1) Contribute to a global and international Brain Health approach (together with national and subspecialty societies, other medical societies, WHO, WFN, patients' organizations, industry, and other stakeholders); 2) Supporting the 47 European national societies, healthcare and policymakers in the implementation of integrated and people-centred campaigns; 3) Fostering Research (e.g. on prevention of neurological disorders, determinants and assessments of brain health), 4) Promoting Education of students, neurologists, general practitioners, other medical specialists and health professionals, patients, caregivers, and general public; 5) Raising public awareness of neurological disorders and brain health. CONCLUSIONS By adopting this 'one brain, one life, one approach' strategy in cooperation with partner societies, international organisations, and policymakers, a significant number of neurological disorders may be prevented while enhancing the overall well-being of individuals by maintaining brain health through the life course.
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Affiliation(s)
- C L A Bassetti
- Department of Neurology, University of Bern, Bern, Switzerland
| | - M Endres
- Department of Neurology with Experimental Neurology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt Universität zu Berlin, Berlin, Germany
| | - A Sander
- The European Academy of Neurology, Vienna, Austria
| | - M Crean
- The European Academy of Neurology, Vienna, Austria
| | | | - V Carvalho
- Department of Neurosciences and Mental Health, Hospital de Santa Maria, Lisboa, Portugal
| | - G Di Liberto
- Division of Neurology, Department of Clinical Neurosciences, University Hospital of Lausanne, University of Lausanne, Lausanne, Switzerland
| | - O H Franco
- Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
| | - Yolande Pijnenburg
- Department of Neurology, Alzheimer Center, Amsterdam University Medical Center, Amsterdam, The Netherlands
| | - M Leonardi
- Fondazione IRCCS Instituto Neurologico C. Besta, Milan, Italy
| | - P Boon
- Department of Neurology, 4Brain, Institute for Neuroscience, Reference Center for Refractory Epilepsy, Ghent University Hospital, Ghent, Belgium
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Hödl S, Olbert E, Mahringer C, Carrette E, Meurs A, Gadeyne S, Dauwe I, Goossens L, Raedt R, Boon P, Vonck K. Severe autonomic nervous system imbalance in Lennox-Gastaut syndrome patients demonstrated by heart rate variability recordings. Epilepsy Res 2021; 177:106783. [PMID: 34626869 DOI: 10.1016/j.eplepsyres.2021.106783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 09/21/2021] [Accepted: 10/01/2021] [Indexed: 10/20/2022]
Abstract
OBJECTIVE Patients diagnosed with Lennox Gastaut syndrome (LGS), an epileptic encephalopathy characterized by usually drug resistant generalized and focal seizures, are often considered as candidates for vagus nerve stimulation (VNS). Recent research shows that heart rate variability (HRV) differs in epilepsy patients and is related to VNS treatment response. This study investigated pre-ictal HRV in generalized onset seizures of patients with LGS in correlation with their VNS response. METHODS In drug resistant epilepsy (DRE) patients diagnosed with LGS video-electroencephalography recording was performed during their pre-surgical evaluation. Six HRV parameters (time and-, frequency domain, non-linear parameters) were evaluated for every seizure in epochs of 10 min at baseline (60 to 50 min before seizure onset) and pre-ictally (10 min prior to seizure onset). The results were correlated to VNS response after one year of VNS therapy. RESULTS Seven patients and 31 seizures were included, two patients were classified as VNS responders (≥ 50 % seizure reduction). No difference in pre-ictal HRV parameters between VNS responders and VNS non-responders could be found, but high frequency (HF) power, reflecting the parasympathetic tone increased significantly in the pre-ictal epoch in both VNS responders and VNS non-responders (p = 0.017, p = 0.004). SIGNIFICANCE In this pilot data pre-ictal HRV did not differ in VNS responders compared to VNS non-responders, but showed a significant increase in HF power - a parasympathetic overdrive - in both VNS responders and VNS non-responders. This sudden autonomic imbalance might have an influence on the cardiovascular system in the ictal period. Generalized tonic-clonic seizures are regarded as the main risk factor for SUDEP and severe seizure-induced autonomic imbalance may play a role in the pathophysiological pathway.
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Affiliation(s)
- S Hödl
- Department of Neurology, 4Brain, Institute for Neuroscience, Reference Center for Refractory Epilepsy, Ghent University Hospital, Ghent, Belgium.
| | - E Olbert
- Department of Neurology, University Hospital Tulln, Karl Landsteiner University of Health Sciences, Austria
| | - C Mahringer
- Institute of Signal Processing, Kepler University Hospital, Med Campus III., Linz, Austria
| | - E Carrette
- Department of Neurology, 4Brain, Institute for Neuroscience, Reference Center for Refractory Epilepsy, Ghent University Hospital, Ghent, Belgium
| | - A Meurs
- Department of Neurology, 4Brain, Institute for Neuroscience, Reference Center for Refractory Epilepsy, Ghent University Hospital, Ghent, Belgium
| | - S Gadeyne
- Department of Neurology, 4Brain, Institute for Neuroscience, Reference Center for Refractory Epilepsy, Ghent University Hospital, Ghent, Belgium
| | - I Dauwe
- Department of Neurology, 4Brain, Institute for Neuroscience, Reference Center for Refractory Epilepsy, Ghent University Hospital, Ghent, Belgium
| | - L Goossens
- Department of Neurology, 4Brain, Institute for Neuroscience, Reference Center for Refractory Epilepsy, Ghent University Hospital, Ghent, Belgium
| | - R Raedt
- Department of Neurology, 4Brain, Institute for Neuroscience, Reference Center for Refractory Epilepsy, Ghent University Hospital, Ghent, Belgium
| | - P Boon
- Department of Neurology, 4Brain, Institute for Neuroscience, Reference Center for Refractory Epilepsy, Ghent University Hospital, Ghent, Belgium
| | - K Vonck
- Department of Neurology, 4Brain, Institute for Neuroscience, Reference Center for Refractory Epilepsy, Ghent University Hospital, Ghent, Belgium
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Tard A, Arcella D, Boon P, Cascio C, Castle L, Gergelova P, Horvath Z, Leblanc JC, Lindtner O, Riolo F, Shah R. Dietary exposure assessment of sweeteners within their re-evaluation by the European Food Safety Authority (EFSA). Toxicol Lett 2021. [DOI: 10.1016/s0378-4274(21)00433-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Pustjens A, Castenmiller J, te Biesebeek J, de Rijk T, van Dam R, Boon P. Dietary exposure to mycotoxins of 1- and 2-year-old children from a Dutch Total Diet Study. WORLD MYCOTOXIN J 2021. [DOI: 10.3920/wmj2020.2676] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In 2017, a Total Diet Study was conducted in the Netherlands in which mycotoxins were analysed in foods and beverages consumed by 1- and 2-year-old children. These mycotoxins were aflatoxins, Alternaria toxins, citrinin, ergot alkaloids, fumonisins, ochratoxin A, patulin, sterigmatocystin, trichothecenes, and zearalenone. Long-term exposure was calculated by combining concentrations in foods and beverages with consumed amounts of these products. Analysed foods and beverages with a concentration below the detection limit that could contain the mycotoxin, were assigned a concentration equal to half this limit value. To assess if the exposure could result in a possible health risk, the high long-term exposure (95th percentile) was compared with a health-based guidance value (HBGV) or a margin of exposure (MOE) was calculated. Exposure to aflatoxins, Alternaria toxins, ochratoxin A and T-2/HT-2 sum may pose a health concern. Foods that contributed most to the exposure of these mycotoxins were bread, biscuits, breakfast cereals, chocolates, dried fruit, follow-on formula and fruit juices.
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Affiliation(s)
- A.M. Pustjens
- Wageningen Food Safety Research (WFSR), Wageningen University and Research, P.O. Box 230, 6700 AE Wageningen, the Netherlands
| | - J.J.M. Castenmiller
- Netherlands Food and Consumer Product Safety Authority (NVWA), P.O. Box 43006, 3540 AA Utrecht, the Netherlands
| | - J.D. te Biesebeek
- National Institute for Public Health and the Environment (RIVM), P.O. Box 1, 3729 Bilthoven, the Netherlands
| | - T.C. de Rijk
- Wageningen Food Safety Research (WFSR), Wageningen University and Research, P.O. Box 230, 6700 AE Wageningen, the Netherlands
| | - R.C.J. van Dam
- Wageningen Food Safety Research (WFSR), Wageningen University and Research, P.O. Box 230, 6700 AE Wageningen, the Netherlands
| | - P.E. Boon
- National Institute for Public Health and the Environment (RIVM), P.O. Box 1, 3729 Bilthoven, the Netherlands
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De Cock E, Batens K, Hemelsoet D, Boon P, Oostra K, De Herdt V. Dysphagia, dysarthria and aphasia following a first acute ischaemic stroke: incidence and associated factors. Eur J Neurol 2020; 27:2014-2021. [DOI: 10.1111/ene.14385] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 06/01/2020] [Indexed: 12/20/2022]
Affiliation(s)
- E. De Cock
- Stroke Unit Department of Neurology Ghent University Hospital Ghent Belgium
- Department of Physical Medicine and Rehabilitation Ghent University Hospital Ghent Belgium
| | - K. Batens
- Stroke Unit Department of Neurology Ghent University Hospital Ghent Belgium
- Department of Physical Medicine and Rehabilitation Ghent University Hospital Ghent Belgium
- Department of Otorhinolaryngology Ghent University Hospital Ghent Belgium
| | - D. Hemelsoet
- Stroke Unit Department of Neurology Ghent University Hospital Ghent Belgium
| | - P. Boon
- Department of Neurology Ghent University Hospital Ghent Belgium
| | - K. Oostra
- Department of Physical Medicine and Rehabilitation Ghent University Hospital Ghent Belgium
| | - V. De Herdt
- Stroke Unit Department of Neurology Ghent University Hospital Ghent Belgium
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Vonck K, Garrez I, De Herdt V, Hemelsoet D, Laureys G, Raedt R, Boon P. Neurological manifestations and neuro-invasive mechanisms of the severe acute respiratory syndrome coronavirus type 2. Eur J Neurol 2020; 27:1578-1587. [PMID: 32416028 PMCID: PMC7276727 DOI: 10.1111/ene.14329] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 05/11/2020] [Indexed: 01/08/2023]
Abstract
Background and purpose Infections with coronaviruses are not always confined to the respiratory tract and various neurological manifestations have been reported. The aim of this study was to perform a review to describe neurological manifestations in patients with COVID‐19 and possible neuro‐invasive mechanisms of Sars‐CoV‐2. Methods PubMed, Web of Science and COVID‐dedicated databases were searched for the combination of COVID‐19 terminology and neurology terminology up to 10 May 2020. Social media channels were followed up between 15 March and 10 May 2020 for postings with the same scope. Neurological manifestations were extracted from the identified papers and combined to provide a useful summary for the neurologist in clinical practice. Results Neurological manifestations potentially related to COVID‐19 have been reported in large studies, case series and case reports and include acute cerebrovascular diseases, impaired consciousness, cranial nerve manifestations and autoimmune disorders such as the Guillain–Barré syndrome often present in patients with more severe COVID‐19. Cranial nerve symptoms such as olfactory and gustatory dysfunctions are highly prevalent in patients with mild to moderate COVID‐19 even without associated nasal symptoms and often present in an early stage of the disease. Conclusion Physicians should be aware of the neurological manifestations in patients with COVID‐19, especially when rapid clinical deterioration occurs. The neurological symptoms in COVID‐19 patients may be due to direct viral neurological injury or indirect neuroinflammatory and autoimmune mechanisms. No antiviral treatments against the virus or vaccines for its prevention are available and the long‐term consequences of the infection on human health remain uncertain especially with regard to the neurological system.
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Affiliation(s)
- K Vonck
- Department of Neurology, 4Brain, Ghent University Hospital, Gent, Belgium
| | - I Garrez
- Department of Neurology, 4Brain, Ghent University Hospital, Gent, Belgium
| | - V De Herdt
- Department of Neurology, 4Brain, Ghent University Hospital, Gent, Belgium
| | - D Hemelsoet
- Department of Neurology, 4Brain, Ghent University Hospital, Gent, Belgium
| | - G Laureys
- Department of Neurology, 4Brain, Ghent University Hospital, Gent, Belgium
| | - R Raedt
- Department of Neurology, 4Brain, Ghent University Hospital, Gent, Belgium
| | - P Boon
- Department of Neurology, 4Brain, Ghent University Hospital, Gent, Belgium
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Lagast S, De Steur H, Gadeyne S, Hödl S, Staljanssens W, Vonck K, Boon P, Gellynck X, De Herdt V. Heart rate, electrodermal responses and frontal alpha asymmetry to accepted and non-accepted solutions and drinks. Food Qual Prefer 2020. [DOI: 10.1016/j.foodqual.2020.103893] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Hödl S, Carrette S, Meurs A, Carrette E, Mertens A, Gadeyne S, Goossens L, Dewaele F, Bouckaert C, Dauwe I, Proesmans S, Raedt R, Boon P, Vonck K. Neurophysiological investigations of drug resistant epilepsy patients treated with vagus nerve stimulation to differentiate responders from non‐responders. Eur J Neurol 2020; 27:1178-1189. [DOI: 10.1111/ene.14270] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 04/11/2020] [Indexed: 01/01/2023]
Affiliation(s)
- S. Hödl
- Department of Neurology 4Brain, Institute for Neuroscience Reference Center for Refractory Epilepsy Ghent University Hospital GhentBelgium
| | - S. Carrette
- Department of Neurology 4Brain, Institute for Neuroscience Reference Center for Refractory Epilepsy Ghent University Hospital GhentBelgium
| | - A. Meurs
- Department of Neurology 4Brain, Institute for Neuroscience Reference Center for Refractory Epilepsy Ghent University Hospital GhentBelgium
| | - E. Carrette
- Department of Neurology 4Brain, Institute for Neuroscience Reference Center for Refractory Epilepsy Ghent University Hospital GhentBelgium
| | - A. Mertens
- Department of Neurology 4Brain, Institute for Neuroscience Reference Center for Refractory Epilepsy Ghent University Hospital GhentBelgium
| | - S. Gadeyne
- Department of Neurology 4Brain, Institute for Neuroscience Reference Center for Refractory Epilepsy Ghent University Hospital GhentBelgium
| | - L. Goossens
- Department of Neurology 4Brain, Institute for Neuroscience Reference Center for Refractory Epilepsy Ghent University Hospital GhentBelgium
| | - F. Dewaele
- Department of Neurosurgery Ghent University Hospital Ghent Belgium
| | - C. Bouckaert
- Department of Neurology 4Brain, Institute for Neuroscience Reference Center for Refractory Epilepsy Ghent University Hospital GhentBelgium
| | - I. Dauwe
- Department of Neurology 4Brain, Institute for Neuroscience Reference Center for Refractory Epilepsy Ghent University Hospital GhentBelgium
| | - S. Proesmans
- Department of Neurology 4Brain, Institute for Neuroscience Reference Center for Refractory Epilepsy Ghent University Hospital GhentBelgium
| | - R. Raedt
- Department of Neurology 4Brain, Institute for Neuroscience Reference Center for Refractory Epilepsy Ghent University Hospital GhentBelgium
| | - P. Boon
- Department of Neurology 4Brain, Institute for Neuroscience Reference Center for Refractory Epilepsy Ghent University Hospital GhentBelgium
| | - K. Vonck
- Department of Neurology 4Brain, Institute for Neuroscience Reference Center for Refractory Epilepsy Ghent University Hospital GhentBelgium
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Schaper F, Plantinga B, Colon A, Wagner L, Boon P, Blom N, Gommer E, Hoogland G, Ackermans L, Rouhl R, Temel Y. Seizure control by deep brain stimulation: a role for white matter? Brain Stimul 2019. [DOI: 10.1016/j.brs.2018.12.611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Colon A, Osch MV, Buijs M, Grond J, Hillebrand A, Schijns O, Wagner G, Ossenblok P, Hofman P, Buchem M, Boon P. MEG-guided analysis of 7T-MRI in patients with epilepsy. Seizure 2018; 60:29-38. [DOI: 10.1016/j.seizure.2018.05.019] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 05/22/2018] [Accepted: 05/24/2018] [Indexed: 11/26/2022] Open
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Breuer LEM, Grevers E, Boon P, Bernas A, Bergmans JWM, Besseling RMH, Klooster DCW, de Louw A, Mestrom RMC, Vonck K, Zinger S, Aldenkamp AP. Cognitive deterioration in adult epilepsy: clinical characteristics of "Accelerated Cognitive Ageing". Acta Neurol Scand 2017; 136:47-53. [PMID: 27790700 DOI: 10.1111/ane.12700] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/26/2016] [Indexed: 11/29/2022]
Abstract
OBJECTIVES "Epileptic dementia" is reported in adults with childhood-onset refractory epilepsy. Cognitive deterioration can also occur in a "second-hit model". MATERIALS AND METHODS We studied the clinical and neuropsychological characteristics of patients with cognitive deterioration (≥1 SD discrepancy between current IQ and premorbid IQ). Memory function, reaction time and processing speed were also evaluated. Analyses were performed to investigate which clinical characteristics correlated with cognitive deterioration. RESULTS Twenty-seven patients were included with a mean age of 55.7 years old, an average age at epilepsy onset of 33.9 years and a mean duration of 21.8 years. Over 40% had experienced at least one status epilepticus. About 77.8% had at least one comorbid disease (most of (cardio)vascular origin). Cognitive deterioration scores were significant for both Performance IQ and Full Scale IQ, but not for Verbal IQ. Impairments in fluid functions primarily affected the IQ-scores. Memory was not impaired. Epilepsy factors explained 7% of the variance in deterioration, whereas 38% was explained by relatively low premorbid IQ and educational level, high age at seizure onset and older age. CONCLUSIONS A subgroup of patients with localization-related epilepsy exhibits cognitive decline characterized by deterioration in PIQ and FSIQ, but with preserved higher order functions (VIQ and memory). Patients typically have epilepsia tarda, comorbid pathology, relatively low educational level and older age. These are factors known to increase the vulnerability of the brain by diminishing cognitive reserve. Cognitive deterioration may develop according to a stepwise "second-hit model", affecting and accelerating the cognitive ageing process.
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Affiliation(s)
- L. E. M. Breuer
- Department of Behavioral Sciences; Epilepsy Centre Kempenhaeghe; Heeze The Netherlands
- Department of Research and Development; Epilepsy Centre Kempenhaeghe; Heeze The Netherlands
- Department of Electrical Engineering; University of Technology; Eindhoven The Netherlands
| | - E. Grevers
- Department of Behavioral Sciences; Epilepsy Centre Kempenhaeghe; Heeze The Netherlands
| | - P. Boon
- Department of Research and Development; Epilepsy Centre Kempenhaeghe; Heeze The Netherlands
- Department of Neurology; Epilepsy Centre Kempenhaeghe; Heeze The Netherlands
- Laboratory for Clinical and Experimental Neurophysiology, Neurobiology and Neuropsychology; Ghent University Hospital; Ghent Belgium
| | - A. Bernas
- Department of Electrical Engineering; University of Technology; Eindhoven The Netherlands
| | - J. W. M. Bergmans
- Department of Electrical Engineering; University of Technology; Eindhoven The Netherlands
| | - R. M. H. Besseling
- Department of Research and Development; Epilepsy Centre Kempenhaeghe; Heeze The Netherlands
- Department of Electrical Engineering; University of Technology; Eindhoven The Netherlands
| | - D. C. W. Klooster
- Department of Electrical Engineering; University of Technology; Eindhoven The Netherlands
| | - A. de Louw
- Department of Research and Development; Epilepsy Centre Kempenhaeghe; Heeze The Netherlands
- Department of Electrical Engineering; University of Technology; Eindhoven The Netherlands
- Department of Neurology; Epilepsy Centre Kempenhaeghe; Heeze The Netherlands
| | - R. M. C. Mestrom
- Department of Electrical Engineering; University of Technology; Eindhoven The Netherlands
| | - K. Vonck
- Laboratory for Clinical and Experimental Neurophysiology, Neurobiology and Neuropsychology; Ghent University Hospital; Ghent Belgium
| | - S. Zinger
- Department of Electrical Engineering; University of Technology; Eindhoven The Netherlands
| | - A. P. Aldenkamp
- Department of Behavioral Sciences; Epilepsy Centre Kempenhaeghe; Heeze The Netherlands
- Department of Research and Development; Epilepsy Centre Kempenhaeghe; Heeze The Netherlands
- Department of Electrical Engineering; University of Technology; Eindhoven The Netherlands
- Laboratory for Clinical and Experimental Neurophysiology, Neurobiology and Neuropsychology; Ghent University Hospital; Ghent Belgium
- Department of Neurology and Clinical Neurophysiology; Maastricht University Medical Center; Maastricht The Netherlands
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Van Damme R, Portzky G, Boon P, Lemmens G. The Impact of Screening Psychiatric Comorbidity and High-risk Feedback on Liaison Psychiatric Consultation Rates and Clinicians’ Attitudes on a Neurology Ward. Eur Psychiatry 2017. [DOI: 10.1016/j.eurpsy.2017.01.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
IntroductionLifetime prevalence of psychiatric comorbidity in neurological patients is as high as 55%, but it remains often undetected and therefore untreated in hospital settings. Further, clinicians tend to make little use of the consultative and liaison psychiatric team for detection and treatment of anxiety and mood disorders in neurological patients. The current study aimed to investigate whether the implementation of a stepped screening protocol with high risk feedback to the clinician had an influence on the use of consultative and liaison psychiatric services.MethodAll patients admitted to the neurological ward were assessed using a stepped screening protocol for depression, anxiety and substance use during 15 months. Positive screening resulted in feedback to the clinicians depending on the study phase (e.g. feedback vs. no feedback).ResultsNo differences were found in the use of consultative and liaison psychiatric services during the non-feedback and feedback phase.ConclusionScreening and high risk feedback of psychiatric comorbidity in neurological patients does not increase psychiatric referral rates. It points to the necessity of a more integrated collaborative care model for detection and treatment of psychiatric comorbidity.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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Carrette S, Klooster D, Nollet L, Duprat R, Staljanssens W, Van Mierlo P, Van Dycke A, Carrette E, Raedt R, Meurs A, Baeken C, Vonck K, Boon P. P061 Continuous thetaburst stimulation for the treatment of refractory epilepsy – Case report. Clin Neurophysiol 2017. [DOI: 10.1016/j.clinph.2016.10.186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abstract
OBJECTIVE MEG and EEG after sleep deprivation (EEG-SD) are applied as diagnostic tools in the evaluation of patients with possible epilepsy. There is no gold standard to check whether the diagnosis based on these two modalities is correct. The best standard available is the long-term follow-up of patients. As follow-up of an earlier study in which the additional value of MEG vs EEG-SD diagnosis was evaluated, we investigated the long-term validity of MEG-based and EEG-SD-based diagnosis. MATERIALS AND METHODS Data collected from 46 patients were used in a comparative study of the last known diagnosis against the original one of 8 years ago. RESULTS Long-term (3-8 years) sensitivity of sharp phenomena (combining spikes and sharp waves) in routine MEG and in EEG-SD for the diagnosis epilepsy is 71% and 62%, respectively. When compared to the original study, this hardly changed. Over time, uncertainty on diagnosis diminishes. CONCLUSION MEG as well as EEG-SD are robust long-term predictors for epilepsy.
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Affiliation(s)
- A. J. Colon
- Department of Clinical Neurophysiology; ACE, location Kempenhaeghe; Heeze The Netherlands
- Department of R&D; ACE; Heeze The Netherlands
- Department of Neurology; Ghent University Hospital; Ghent Belgium
| | - H. E. Ronner
- Department of Clinical Neurophysiology; VUmc; Amsterdam The Netherlands
| | - P. Boon
- Department of R&D; ACE; Heeze The Netherlands
- Department of Neurology; Ghent University Hospital; Ghent Belgium
| | - P. Ossenblok
- Department of R&D; ACE; Heeze The Netherlands
- Department of Clinical Physics; ACE, location Kempenhaeghe; Heeze The Netherlands
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de Nijs M, Mengelers M, Boon P, Heyndrickx E, Hoogenboom L, Lopez P, Mol H. Strategies for estimating human exposure to mycotoxins via food. WORLD MYCOTOXIN J 2016. [DOI: 10.3920/wmj2016.2045] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
In this review, five strategies to estimate mycotoxin exposure of a (sub-)population via food, including data collection, are discussed with the aim to identify the added values and limitations of each strategy for risk assessment of these chemicals. The well-established point estimate, observed individual mean, probabilistic and duplicate diet strategies are addressed, as well as the emerging human biomonitoring strategy. All five exposure assessment strategies allow the estimation of chronic (long-term) exposure to mycotoxins, and, with the exception of the observed individual mean strategy, also acute (short-term) exposure. Methods for data collection, i.e. food consumption surveys, food monitoring studies and total diet studies are discussed. In food monitoring studies, the driving force is often enforcement of legal limits, and, consequently, data are often generated with relatively high limits of quantification and targeted at products suspected to contain mycotoxin levels above these legal limits. Total diet studies provide a solid base for chronic exposure assessments since they provide mycotoxin levels in food based on well-defined samples and including the effect of food preparation. Duplicate diet studies and human biomonitoring studies reveal the actual exposure but often involve a restricted group of human volunteers and a limited time period. Human biomonitoring studies may also include exposure to mycotoxins from other sources than food, and exposure to modified mycotoxins that may not be detected with current analytical methods. Low limits of quantification are required for analytical methods applied for data collection to avoid large uncertainties in the exposure due to high numbers of left censored data, i.e. with levels below the limit of quantification.
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Affiliation(s)
- M. de Nijs
- RIKILT, Wageningen UR, P.O. Box 230, 6700 AB Wageningen, the Netherlands
| | - M.J.B. Mengelers
- National Institute for Public Health and the Environment (RIVM), P.O. Box 1, 3729 BA Bilthoven, the Netherlands
| | - P.E. Boon
- National Institute for Public Health and the Environment (RIVM), P.O. Box 1, 3729 BA Bilthoven, the Netherlands
| | - E. Heyndrickx
- Laboratory of Food Analysis, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, 9000 Ghent, Belgium
| | - L.A.P. Hoogenboom
- RIKILT, Wageningen UR, P.O. Box 230, 6700 AB Wageningen, the Netherlands
| | - P. Lopez
- RIKILT, Wageningen UR, P.O. Box 230, 6700 AB Wageningen, the Netherlands
| | - H.G.J. Mol
- RIKILT, Wageningen UR, P.O. Box 230, 6700 AB Wageningen, the Netherlands
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16
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Buffel I, Meurs A, Portelli J, Raedt R, De Herdt V, Poppe L, De Meulenaere V, Wadman W, Bihel F, Schmitt M, Vonck K, Bourguignon JJ, Simonin F, Smolders I, Boon P. The effect of neuropeptide FF in the amygdala kindling model. Acta Neurol Scand 2016; 134:181-8. [PMID: 26503695 DOI: 10.1111/ane.12526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/29/2015] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Neuropeptide FF (NPFF) and its receptors (NPFF1 R and NPFF2 R) are differentially distributed throughout the central nervous system. NPFF reduces cortical excitability in rats when administered intracerebroventricularly (i.c.v.), and both NPFF and NPFF1 R antagonists attenuate pilocarpine-induced limbic seizures. In this study, our aim was to determine whether NPFF exerts anticonvulsant or anti-epileptogenic effects in the rat amygdala kindling model for temporal lobe seizures. METHODS Male Wistar rats were implanted with a recording/stimulation electrode in the right amygdala and a cannula in the left lateral ventricle. In a first group of animals, the afterdischarge threshold (ADT) was determined after a single i.c.v. infusion of saline (n = 8) or NPFF (1 nmol/h for 2 h; n = 10). Subsequently, daily infusion of saline (n = 8) or NPFF (1 nmol/h for 2 h; i.c.v.; n = 9) was performed, followed by a kindling stimulus (ADT+200 μA). Afterdischarge duration and seizure severity were evaluated after every kindling stimulus. A second group of rats (n = 7) were fully kindled, and the effect of saline or a high dose of NPFF (10 nmol/h for 2 h, i.c.v.) on ADT and the generalized seizure threshold (GST) was subsequently determined. RESULTS In naive rats, NPFF significantly increased the ADT compared to control (435 ± 72 μA vs 131 ± 23 μA [P < 0.05]). When rats underwent daily stimulations above the ADT, NPFF did not delay or prevent kindling acquisition. Furthermore, a high dose of NPFF did not alter ADT or GST in fully kindled rats. CONCLUSIONS I.c.v. administration of NPFF reduced excitability in the amygdala in naive, but not in fully kindled rats, and had no effect on kindling acquisition.
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Affiliation(s)
- I. Buffel
- Laboratory for Clinical and Experimental Neurophysiology; Neurobiology and Neuropsychology; Department of Neurology; Ghent University; Ghent University Hospital; Ghent Belgium
| | - A. Meurs
- Laboratory for Clinical and Experimental Neurophysiology; Neurobiology and Neuropsychology; Department of Neurology; Ghent University; Ghent University Hospital; Ghent Belgium
| | - J. Portelli
- Laboratory for Clinical and Experimental Neurophysiology; Neurobiology and Neuropsychology; Department of Neurology; Ghent University; Ghent University Hospital; Ghent Belgium
- Center for Neurosciences; Department of Pharmaceutical Chemistry; Drug Analysis & Drug information; University of Brussels; Brussels Belgium
| | - R. Raedt
- Laboratory for Clinical and Experimental Neurophysiology; Neurobiology and Neuropsychology; Department of Neurology; Ghent University; Ghent University Hospital; Ghent Belgium
| | - V. De Herdt
- Laboratory for Clinical and Experimental Neurophysiology; Neurobiology and Neuropsychology; Department of Neurology; Ghent University; Ghent University Hospital; Ghent Belgium
| | - L. Poppe
- Laboratory for Clinical and Experimental Neurophysiology; Neurobiology and Neuropsychology; Department of Neurology; Ghent University; Ghent University Hospital; Ghent Belgium
| | - V. De Meulenaere
- Laboratory for Clinical and Experimental Neurophysiology; Neurobiology and Neuropsychology; Department of Neurology; Ghent University; Ghent University Hospital; Ghent Belgium
| | - W. Wadman
- Swammerdam Institute of Life Sciences; Department of Neurobiology; University of Amsterdam; Amsterdam The Netherlands
| | - F. Bihel
- Therapeuthic Innovation Laboratory; Faculty of Pharmacy; UMR 7200; CNRS; University of Strasbourg; Illkirch Graffenstaden France
| | - M. Schmitt
- Therapeuthic Innovation Laboratory; Faculty of Pharmacy; UMR 7200; CNRS; University of Strasbourg; Illkirch Graffenstaden France
| | - K. Vonck
- Laboratory for Clinical and Experimental Neurophysiology; Neurobiology and Neuropsychology; Department of Neurology; Ghent University; Ghent University Hospital; Ghent Belgium
| | - J.-J. Bourguignon
- Therapeuthic Innovation Laboratory; Faculty of Pharmacy; UMR 7200; CNRS; University of Strasbourg; Illkirch Graffenstaden France
| | - F. Simonin
- Research Institute of ESBS; CNRS; UMR7242; University of Strasbourg; Illkirch France
| | - I. Smolders
- Center for Neurosciences; Department of Pharmaceutical Chemistry; Drug Analysis & Drug information; University of Brussels; Brussels Belgium
| | - P. Boon
- Laboratory for Clinical and Experimental Neurophysiology; Neurobiology and Neuropsychology; Department of Neurology; Ghent University; Ghent University Hospital; Ghent Belgium
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17
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Colon AJ, van Osch MJP, Buijs M, Grond JVD, Boon P, van Buchem MA, Hofman PAM. Detection superiority of 7 T MRI protocol in patients with epilepsy and suspected focal cortical dysplasia. Acta Neurol Belg 2016; 116:259-69. [PMID: 27389578 PMCID: PMC4989014 DOI: 10.1007/s13760-016-0662-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Accepted: 06/14/2016] [Indexed: 12/12/2022]
Abstract
In 11 adult patients with suspicion of Focal cortical dysplasia (FCD) on 1.5 T (n = 1) or 3 T (n = 10) magnetic resonance imaging (MRI), 7 T MRI was performed. Visibility, extent, morphological features and delineation were independently rated and subsequently discussed by three observers. Additionally, head-to-head comparisons with corresponding 3 T images were made in the eight patients with a previous 3 T MRI and sustained suspicion of FCD. Comparison with histopathology was done in the five patients that underwent surgery. All lesions, seen at 1.5 and 3 T, were also recognized on 7 T. At 7 T FLAIR highlighted the FCD-like lesions best, whereas T2 and T2* were deemed better suited to review structure and extent of the lesion. Image quality with the used 7 T MRI setup was higher than the quality with the used 3 T MRI setup. In 2 out of 11 patients diagnosis changed, in one after re-evaluation of the images, and in the other based on histopathology. With the used 7 T MRI setup, FCD-like lesions can be detected with more confidence and detail as compared to lower field strength. However, concordance between radiologic diagnosis and final diagnosis seems to be lower than expected.
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Beausoleil C, Beronius A, Bodin L, Bokkers B, Boon P, Burger M, Cao Y, De Wit L, Fischer A, Hanberg A, Leander K, Litens‐Karlsson S, Rousselle C, Slob W, Varret C, Wolterink G, Zilliacus J. Review of non‐monotonic dose‐responses of substances for human risk assessment. ACTA ACUST UNITED AC 2016. [DOI: 10.2903/sp.efsa.2016.en-1027] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- C. Beausoleil
- French Agency for Food, Environment and Occupational Health & Safety (ANSES)
| | - A. Beronius
- Institute of Environmental Medicine, Karolinska Institutet (IMM)
| | - L. Bodin
- French Agency for Food, Environment and Occupational Health & Safety (ANSES)
| | - B.G.H. Bokkers
- National Institute for Public Health and the Environment (RIVM)
| | - P.E. Boon
- National Institute for Public Health and the Environment (RIVM)
| | - M. Burger
- Austrian Agency for Health and Food Safety GmhH (AGES)
| | - Y. Cao
- Institute of Environmental Medicine, Karolinska Institutet (IMM)
| | - L. De Wit
- National Institute for Public Health and the Environment (RIVM)
| | - A. Fischer
- Austrian Agency for Health and Food Safety GmhH (AGES)
| | - A. Hanberg
- Institute of Environmental Medicine, Karolinska Institutet (IMM)
| | - K. Leander
- Institute of Environmental Medicine, Karolinska Institutet (IMM)
| | | | - C. Rousselle
- French Agency for Food, Environment and Occupational Health & Safety (ANSES)
| | - W. Slob
- National Institute for Public Health and the Environment (RIVM)
| | - C. Varret
- French Agency for Food, Environment and Occupational Health & Safety (ANSES)
| | - G. Wolterink
- National Institute for Public Health and the Environment (RIVM)
| | - J. Zilliacus
- Institute of Environmental Medicine, Karolinska Institutet (IMM)
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19
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Klooster DCW, de Louw AJA, Aldenkamp AP, Besseling RMH, Mestrom RMC, Carrette S, Zinger S, Bergmans JWM, Mess WH, Vonck K, Carrette E, Breuer LEM, Bernas A, Tijhuis AG, Boon P. Technical aspects of neurostimulation: Focus on equipment, electric field modeling, and stimulation protocols. Neurosci Biobehav Rev 2016; 65:113-41. [PMID: 27021215 DOI: 10.1016/j.neubiorev.2016.02.016] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Revised: 02/05/2016] [Accepted: 02/17/2016] [Indexed: 12/31/2022]
Abstract
Neuromodulation is a field of science, medicine, and bioengineering that encompasses implantable and non-implantable technologies for the purpose of improving quality of life and functioning of humans. Brain neuromodulation involves different neurostimulation techniques: transcranial magnetic stimulation (TMS), transcranial direct current stimulation (tDCS), vagus nerve stimulation (VNS), and deep brain stimulation (DBS), which are being used both to study their effects on cognitive brain functions and to treat neuropsychiatric disorders. The mechanisms of action of neurostimulation remain incompletely understood. Insight into the technical basis of neurostimulation might be a first step towards a more profound understanding of these mechanisms, which might lead to improved clinical outcome and therapeutic potential. This review provides an overview of the technical basis of neurostimulation focusing on the equipment, the present understanding of induced electric fields, and the stimulation protocols. The review is written from a technical perspective aimed at supporting the use of neurostimulation in clinical practice.
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Affiliation(s)
- D C W Klooster
- Kempenhaeghe Academic Center for Epileptology, P.O. Box 61, 5590 AB Heeze, The Netherlands; Department of Electrical Engineering, University of Technology Eindhoven, P.O. Box 513, 5600 MB Eindhoven, The Netherlands.
| | - A J A de Louw
- Kempenhaeghe Academic Center for Epileptology, P.O. Box 61, 5590 AB Heeze, The Netherlands; Department of Electrical Engineering, University of Technology Eindhoven, P.O. Box 513, 5600 MB Eindhoven, The Netherlands; Department of Neurology, Maastricht University Medical Center, P.O. Box 5800, 6202 AZ Maastricht, The Netherlands.
| | - A P Aldenkamp
- Kempenhaeghe Academic Center for Epileptology, P.O. Box 61, 5590 AB Heeze, The Netherlands; Department of Electrical Engineering, University of Technology Eindhoven, P.O. Box 513, 5600 MB Eindhoven, The Netherlands; Department of Neurology, Maastricht University Medical Center, P.O. Box 5800, 6202 AZ Maastricht, The Netherlands; School for Mental Health and Neuroscience, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands; Department of Neurology, Ghent University Hospital, De Pintelaan 185, 9000 Ghent, Belgium.
| | - R M H Besseling
- Department of Electrical Engineering, University of Technology Eindhoven, P.O. Box 513, 5600 MB Eindhoven, The Netherlands.
| | - R M C Mestrom
- Department of Electrical Engineering, University of Technology Eindhoven, P.O. Box 513, 5600 MB Eindhoven, The Netherlands.
| | - S Carrette
- Department of Neurology, Ghent University Hospital, De Pintelaan 185, 9000 Ghent, Belgium.
| | - S Zinger
- Kempenhaeghe Academic Center for Epileptology, P.O. Box 61, 5590 AB Heeze, The Netherlands; Department of Electrical Engineering, University of Technology Eindhoven, P.O. Box 513, 5600 MB Eindhoven, The Netherlands.
| | - J W M Bergmans
- Department of Electrical Engineering, University of Technology Eindhoven, P.O. Box 513, 5600 MB Eindhoven, The Netherlands.
| | - W H Mess
- Departments of Clinical Neurophysiology, Maastricht University Medical Center, P.O. Box 5800, 6202 AZ Maastricht, The Netherlands.
| | - K Vonck
- Department of Neurology, Ghent University Hospital, De Pintelaan 185, 9000 Ghent, Belgium.
| | - E Carrette
- Department of Neurology, Ghent University Hospital, De Pintelaan 185, 9000 Ghent, Belgium.
| | - L E M Breuer
- Kempenhaeghe Academic Center for Epileptology, P.O. Box 61, 5590 AB Heeze, The Netherlands.
| | - A Bernas
- Department of Electrical Engineering, University of Technology Eindhoven, P.O. Box 513, 5600 MB Eindhoven, The Netherlands.
| | - A G Tijhuis
- Department of Electrical Engineering, University of Technology Eindhoven, P.O. Box 513, 5600 MB Eindhoven, The Netherlands.
| | - P Boon
- Kempenhaeghe Academic Center for Epileptology, P.O. Box 61, 5590 AB Heeze, The Netherlands; Department of Electrical Engineering, University of Technology Eindhoven, P.O. Box 513, 5600 MB Eindhoven, The Netherlands; Department of Neurology, Ghent University Hospital, De Pintelaan 185, 9000 Ghent, Belgium.
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20
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Van Den Berge N, Vanhove C, Descamps B, Dauwe I, van Mierlo P, Raedt R, Vonck K, Boon P, Van Holen R. ID 178 – Longitudinal simultaneous DBS fMRI in the rodent brain. Clin Neurophysiol 2016. [DOI: 10.1016/j.clinph.2015.11.270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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21
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Van Nieuwenhuyse B, Raedt R, Sprengers M, Dauwe I, Gadeyne S, Carrette E, Delbeke J, Wadman WJ, Boon P, Vonck K. The systemic kainic acid rat model of temporal lobe epilepsy: Long-term EEG monitoring. Brain Res 2015; 1627:1-11. [PMID: 26381287 DOI: 10.1016/j.brainres.2015.08.016] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2015] [Revised: 08/10/2015] [Accepted: 08/12/2015] [Indexed: 02/03/2023]
Abstract
Animal models reproducing the characteristics of human epilepsy are essential for the elucidation of the pathophysiological mechanisms. In epilepsy research there is ongoing debate on whether the epileptogenic process is a continuous process rather than a step function. The aim of this study was to assess progression of epileptogenesis over the long term and to evaluate possible correlations between SE duration and severity with the disease progression in the kainic acid model. Rats received repeated KA injections (5mg/kg) until a self-sustained SE was elicited. Continuous depth EEG recording started before KA injection and continued for 30 weeks. Mean seizure rate progression could be expressed as a sigmoid function and increased from 1 ± 0.2 seizures per day during the second week after SE to 24.4 ± 6.4 seizures per day during week 30. Seizure rate progressed to a plateau phase 122 ± 9 days after SE. However, the individual seizure rate during this plateau phase varied between 14.5 seizures and 48.6 seizures per day. A circadian rhythm in seizure occurrence was observed in all rats. Histological characterization of damage to the dentate gyrus in the KA treated rats confirmed the presence of astrogliosis and aberrant mossy fiber sprouting in the dentate gyrus. This long-term EEG monitoring study confirms that epileptogenesis is a continuous process rather than a step function.
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Affiliation(s)
- B Van Nieuwenhuyse
- Laboratory for Clinical and Experimental Neurophysiology, Neurobiology, and Neuropsychology, Department of Neurology, Ghent University, De Pintelaan 185, 9000 Ghent, Belgium.
| | - R Raedt
- Laboratory for Clinical and Experimental Neurophysiology, Neurobiology, and Neuropsychology, Department of Neurology, Ghent University, De Pintelaan 185, 9000 Ghent, Belgium.
| | - M Sprengers
- Laboratory for Clinical and Experimental Neurophysiology, Neurobiology, and Neuropsychology, Department of Neurology, Ghent University, De Pintelaan 185, 9000 Ghent, Belgium.
| | - I Dauwe
- Laboratory for Clinical and Experimental Neurophysiology, Neurobiology, and Neuropsychology, Department of Neurology, Ghent University, De Pintelaan 185, 9000 Ghent, Belgium.
| | - S Gadeyne
- Swammerdam Institute of Life Sciences, University of Amsterdam, Sciencepark 904, 1098 XH Amsterdam, The Netherlands.
| | - E Carrette
- Laboratory for Clinical and Experimental Neurophysiology, Neurobiology, and Neuropsychology, Department of Neurology, Ghent University, De Pintelaan 185, 9000 Ghent, Belgium
| | - J Delbeke
- Laboratory for Clinical and Experimental Neurophysiology, Neurobiology, and Neuropsychology, Department of Neurology, Ghent University, De Pintelaan 185, 9000 Ghent, Belgium.
| | - W J Wadman
- Laboratory for Clinical and Experimental Neurophysiology, Neurobiology, and Neuropsychology, Department of Neurology, Ghent University, De Pintelaan 185, 9000 Ghent, Belgium; Swammerdam Institute of Life Sciences, University of Amsterdam, Sciencepark 904, 1098 XH Amsterdam, The Netherlands.
| | - P Boon
- Laboratory for Clinical and Experimental Neurophysiology, Neurobiology, and Neuropsychology, Department of Neurology, Ghent University, De Pintelaan 185, 9000 Ghent, Belgium.
| | - K Vonck
- Laboratory for Clinical and Experimental Neurophysiology, Neurobiology, and Neuropsychology, Department of Neurology, Ghent University, De Pintelaan 185, 9000 Ghent, Belgium.
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22
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Van Nieuwenhuyse B, Raedt R, Delbeke J, Wadman W, Boon P, Vonck K. In Search of Optimal DBS Paradigms to Treat Epilepsy: Bilateral Versus Unilateral Hippocampal Stimulation in a Rat Model for Temporal Lobe Epilepsy. Brain Stimul 2015; 8:192-9. [DOI: 10.1016/j.brs.2014.11.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2014] [Revised: 10/30/2014] [Accepted: 11/28/2014] [Indexed: 11/28/2022] Open
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De Letter M, Aerts A, Van Borsel J, Vanhoutte S, De Taeye L, Raedt R, van Mierlo P, Boon P, Van Roost D, Santens P. Electrophysiological registration of phonological perception in the subthalamic nucleus of patients with Parkinson's Disease. Brain Lang 2014; 138:19-26. [PMID: 25265552 DOI: 10.1016/j.bandl.2014.08.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Revised: 06/30/2014] [Accepted: 08/17/2014] [Indexed: 06/03/2023]
Abstract
Phonological processing is usually associated with the activation of cortical areas, especially in the left cerebral hemisphere. This study examined if phonologically elicited evoked potentials can be recorded directly from the subthalamic nucleus in patients with Parkinson's Disease (PD). Seven PD patients who had undergone implantation of deep brain electrodes for the stimulation of the subthalamic nucleus were included. Local field potentials were recorded in a pre-attentive auditory phonological task, an attentive auditory phonological discrimination task, and a word recognition task. Auditory evoked potentials related to phonological, but not lexical processing, could be demonstrated in the subthalamic nucleus for all three tasks. Only minor changes were found after levodopa administration. This study demonstrates that the subthalamic nucleus is involved in early phonological perception, which puts the subthalamic nucleus in a position to modify phonological perception in a larger cortico-subcortical network.
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Affiliation(s)
- M De Letter
- Department of Speech, Language and Hearing Sciences, Ghent University, Ghent, Belgium; Department of Neurology, Ghent University Hospital, Ghent, Belgium.
| | - A Aerts
- Department of Neurology, Ghent University Hospital, Ghent, Belgium; Department of Internal Medicine, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - J Van Borsel
- Department of Speech, Language and Hearing Sciences, Ghent University, Ghent, Belgium; Universidade Veiga de Almeida, Rio de Janeiro, Brazil
| | - S Vanhoutte
- Department of Neurology, Ghent University Hospital, Ghent, Belgium; Department of Internal Medicine, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - L De Taeye
- Department of Neurology, Ghent University Hospital, Ghent, Belgium; Department of Internal Medicine, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - R Raedt
- Department of Neurology, Ghent University Hospital, Ghent, Belgium; Department of Internal Medicine, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - P van Mierlo
- Medical Imaging and Signal Processing Group, Department of Electronics and Information Systems, Ghent University, Ghent, Belgium
| | - P Boon
- Department of Neurology, Ghent University Hospital, Ghent, Belgium; Department of Internal Medicine, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - D Van Roost
- Department of Neurosurgery, Ghent University Hospital, Ghent, Belgium
| | - P Santens
- Department of Neurology, Ghent University Hospital, Ghent, Belgium; Department of Internal Medicine, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
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Carrette S, Carrette E, Gadeyne S, Dauwe I, Meurs A, De Herdt V, Goossens L, Hoedl S, Boon P, Vonck K. LP6: Ictal tachycardia in childhood epilepsy. Clin Neurophysiol 2014. [DOI: 10.1016/s1388-2457(14)50267-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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25
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Berge NVD, Keereman V, Vanhove C, Mierlo PV, Nieuwenhuyse BV, Vandeghinste B, Raedt R, Boon P, Vandenberghe S, Holen RV. PET functional imaging of deep brain stimulation in the healthy rat brain. KLIN NEUROPHYSIOL 2014. [DOI: 10.1055/s-0034-1371301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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He BJ, Nolte G, Nagata K, Takano D, Yamazaki T, Fujimaki Y, Maeda T, Satoh Y, Heckers S, George MS, Lopes da Silva F, de Munck JC, Van Houdt PJ, Verdaasdonk RM, Ossenblok P, Mullinger K, Bowtell R, Bagshaw AP, Keeser D, Karch S, Segmiller F, Hantschk I, Berman A, Padberg F, Pogarell O, Scharnowski F, Karch S, Hümmer S, Keeser D, Paolini M, Kirsch V, Koller G, Rauchmann B, Kupka M, Blautzik J, Pogarell O, Razavi N, Jann K, Koenig T, Kottlow M, Hauf M, Strik W, Dierks T, Gotman J, Vulliemoz S, Lu Y, Zhang H, Yang L, Worrell G, He B, Gruber O, Piguet C, Hubl D, Homan P, Kindler J, Dierks T, Kim K, Steinhoff U, Wakai R, Koenig T, Kottlow M, Melie-García L, Mucci A, Volpe U, Prinster A, Salvatore M, Galderisi S, Linden DEJ, Brandeis D, Schroeder CE, Kayser C, Panzeri S, Kleinschmidt A, Ritter P, Walther S, Haueisen J, Lau S, Flemming L, Sonntag H, Maess B, Knösche TR, Lanfer B, Dannhauer M, Wolters CH, Stenroos M, Haueisen J, Wolters C, Aydin U, Lanfer B, Lew S, Lucka F, Ruthotto L, Vorwerk J, Wagner S, Ramon C, Guan C, Ang KK, Chua SG, Kuah WK, Phua KS, Chew E, Zhou H, Chuang KH, Ang BT, Wang C, Zhang H, Yang H, Chin ZY, Yu H, Pan Y, Collins L, Mainsah B, Colwell K, Morton K, Ryan D, Sellers E, Caves K, Throckmorton S, Kübler A, Holz EM, Zickler C, Sellers E, Ryan D, Brown K, Colwell K, Mainsah B, Caves K, Throckmorton S, Collins L, Wennberg R, Ahlfors SP, Grova C, Chowdhury R, Hedrich T, Heers M, Zelmann R, Hall JA, Lina JM, Kobayashi E, Oostendorp T, van Dam P, Oosterhof P, Linnenbank A, Coronel R, van Dessel P, de Bakker J, Rossion B, Jacques C, Witthoft N, Weiner KS, Foster BL, Miller KJ, Hermes D, Parvizi J, Grill-Spector K, Recanzone GH, Murray MM, Haynes JD, Richiardi J, Greicius M, De Lucia M, Müller KR, Formisano E, Smieskova R, Schmidt A, Bendfeldt K, Walter A, Riecher-Rössler A, Borgwardt S, Fusar-Poli P, Eliez S, Schmidt A, Sekihara K, Nagarajan SS, Schoffelen JM, Guggisberg AG, Nolte G, Balazs S, Kermanshahi K, Kiesenhofer W, Binder H, Rattay F, Antal A, Chaieb L, Paulus W, Bodis-Wollner I, Maurer K, Fein G, Camchong J, Johnstone J, Cardenas-Nicolson V, Fiederer LDJ, Lucka F, Yang S, Vorwerk J, Dümpelmann M, Cosandier-Rimélé D, Schulze-Bonhage A, Aertsen A, Speck O, Wolters CH, Ball T, Fuchs M, Wagner M, Kastner J, Tech R, Dinh C, Haueisen J, Baumgarten D, Hämäläinen MS, Lau S, Vogrin SJ, D'Souza W, Haueisen J, Cook MJ, Custo A, Van De Ville D, Vulliemoz S, Grouiller F, Michel CM, Malmivuo J, Aydin U, Vorwerk J, Küpper P, Heers M, Kugel H, Wellmer J, Kellinghaus C, Scherg M, Rampp S, Wolters C, Storti SF, Boscolo Galazzo I, Del Felice A, Pizzini FB, Arcaro C, Formaggio E, Mai R, Manganotti P, Koessler L, Vignal J, Cecchin T, Colnat-Coulbois S, Vespignani H, Ramantani G, Maillard L, Rektor I, Kuba R, Brázdil M, Chrastina J, Rektorova I, van Mierlo P, Carrette E, Strobbe G, Montes-Restrepo V, Vonck K, Vandenberghe S, Ahmed B, Brodely C, Carlson C, Kuzniecky R, Devinsky O, French J, Thesen T, Bénis D, David O, Lachaux JP, Seigneuret E, Krack P, Fraix V, Chabardès S, Bastin J, Jann K, Gee D, Kilroy E, Cannon T, Wang DJ, Hale JR, Mayhew SD, Przezdzik I, Arvanitis TN, Bagshaw AP, Plomp G, Quairiaux C, Astolfi L, Michel CM, Mayhew SD, Mullinger KJ, Bagshaw AP, Bowtell R, Francis ST, Schouten AC, Campfens SF, van der Kooij H, Koles Z, Lind J, Flor-Henry P, Wirth M, Haase CM, Villeneuve S, Vogel J, Jagust WJ, Kambeitz-Ilankovic L, Simon-Vermot L, Gesierich B, Duering M, Ewers M, Rektorova I, Krajcovicova L, Marecek R, Mikl M, Bracht T, Horn H, Strik W, Federspiel A, Schnell S, Höfle O, Stegmayer K, Wiest R, Dierks T, Müller TJ, Walther S, Surmeli T, Ertem A, Eralp E, Kos IH, Skrandies W, Flüggen S, Klein A, Britz J, Díaz Hernàndez L, Ro T, Michel CM, Lenartowicz A, Lau E, Rodriguez C, Cohen MS, Loo SK, Di Lorenzo G, Pagani M, Monaco L, Daverio A, Giannoudas I, La Porta P, Verardo AR, Niolu C, Fernandez I, Siracusano A, Flor-Henry P, Lind J, Koles Z, Bollmann S, Ghisleni C, O'Gorman R, Poil SS, Klaver P, Michels L, Martin E, Ball J, Eich-Höchli D, Brandeis D, Salisbury DF, Murphy TK, Butera CD, Mathalon DH, Fryer SL, Kiehl KA, Calhoun VC, Pearlson GD, Roach BJ, Ford JM, McGlashan TH, Woods SW, Volpe U, Merlotti E, Vignapiano A, Montefusco V, Plescia GM, Gallo O, Romano P, Mucci A, Galderisi S, Mingoia G, Langbein K, Dietzek M, Wagner G, Smesny, Scherpiet S, Maitra R, Gaser C, Sauer H, Nenadic I, Gonzalez Andino S, Grave de Peralta Menendez R, Grave de Peralta Menendez R, Sanchez Vives M, Rebollo B, Gonzalez Andino S, Frølich L, Andersen TS, Mørup M, Belfiore P, Gargiulo P, Ramon C, Vanhatalo S, Cho JH, Vorwerk J, Wolters CH, Knösche TR, Watanabe T, Kawabata Y, Ukegawa D, Kawabata S, Adachi Y, Sekihara K, Sekihara K, Nagarajan SS, Wagner S, Aydin U, Vorwerk J, Herrmann C, Burger M, Wolters C, Lucka F, Aydin U, Vorwerk J, Burger M, Wolters C, Bauer M, Trahms L, Sander T, Faber PL, Lehmann D, Gianotti LRR, Pascual-Marqui RD, Milz P, Kochi K, Kaneko S, Yamashita S, Yana K, Kalogianni K, Vardy AN, Schouten AC, van der Helm FCT, Sorrentino A, Luria G, Aramini R, Hunold A, Funke M, Eichardt R, Haueisen J, Gómez-Aguilar F, Vázquez-Olvera S, Cordova-Fraga T, Castro-López J, Hernández-Gonzalez MA, Solorio-Meza S, Sosa-Aquino M, Bernal-Alvarado JJ, Vargas-Luna M, Vorwerk J, Magyari L, Ludewig J, Oostenveld R, Wolters CH, Vorwerk J, Engwer C, Ludewig J, Wolters C, Sato K, Nishibe T, Furuya M, Yamashiro K, Yana K, Ono T, Puthanmadam Subramaniyam N, Hyttinen J, Lau S, Güllmar D, Flemming L, Haueisen J, Sonntag H, Vorwerk J, Wolters CH, Grasedyck L, Haueisen J, Maeß B, Freitag S, Graichen U, Fiedler P, Strohmeier D, Haueisen J, Stenroos M, Hauk O, Grigutsch M, Felber M, Maess B, Herrmann B, Strobbe G, van Mierlo P, Vandenberghe S, Strobbe G, Cárdenas-Peña D, Montes-Restrepo V, van Mierlo P, Castellanos-Dominguez G, Vandenberghe S, Lanfer B, Paul-Jordanov I, Scherg M, Wolters CH, Ito Y, Sato D, Kamada K, Kobayashi T, Dalal SS, Rampp S, Willomitzer F, Arold O, Fouladi-Movahed S, Häusler G, Stefan H, Ettl S, Zhang S, Zhang Y, Li H, Kong X, Montes-Restrepo V, Strobbe G, van Mierlo P, Vandenberghe S, Wong DDE, Bidet-Caulet A, Knight RT, Crone NE, Dalal SS, Birot G, Spinelli L, Vulliémoz S, Seeck M, Michel CM, Emory H, Wells C, Mizrahi N, Vogrin SJ, Lau S, Cook MJ, Karahanoglu FI, Grouiller F, Caballero-Gaudes C, Seeck M, Vulliemoz S, Van De Ville D, Spinelli L, Megevand P, Genetti M, Schaller K, Michel C, Vulliemoz S, Seeck M, Genetti M, Tyrand R, Grouiller F, Vulliemoz S, Spinelli L, Seeck M, Schaller K, Michel CM, Grouiller F, Heinzer S, Delattre B, Lazeyras F, Spinelli L, Pittau F, Seeck M, Ratib O, Vargas M, Garibotto V, Vulliemoz S, Vogrin SJ, Bailey CA, Kean M, Warren AE, Davidson A, Seal M, Harvey AS, Archer JS, Papadopoulou M, Leite M, van Mierlo P, Vonck K, Boon P, Friston K, Marinazzo D, Ramon C, Holmes M, Koessler L, Rikir E, Gavaret M, Bartolomei F, Vignal JP, Vespignani H, Maillard L, Centeno M, Perani S, Pier K, Lemieux L, Clayden J, Clark C, Pressler R, Cross H, Carmichael DW, Spring A, Bessemer R, Pittman D, Aghakhani Y, Federico P, Pittau F, Grouiller F, Vulliémoz S, Gotman J, Badier JM, Bénar CG, Bartolomei F, Cruto C, Chauvel P, Gavaret M, Brodbeck V, van Leeuwen T, Tagliazzuchi E, Melloni L, Laufs H, Griskova-Bulanova I, Dapsys K, Klein C, Hänggi J, Jäncke L, Ehinger BV, Fischer P, Gert AL, Kaufhold L, Weber F, Marchante Fernandez M, Pipa G, König P, Sekihara K, Hiyama E, Koga R, Iannilli E, Michel CM, Bartmuss AL, Gupta N, Hummel T, Boecker R, Holz N, Buchmann AF, Blomeyer D, Plichta MM, Wolf I, Baumeister S, Meyer-Lindenberg A, Banaschewski T, Brandeis D, Laucht M, Natahara S, Ueno M, Kobayashi T, Kottlow M, Bänninger A, Koenig T, Schwab S, Koenig T, Federspiel A, Dierks T, Jann K, Natsukawa H, Kobayashi T, Tüshaus L, Koenig T, Kottlow M, Achermann P, Wilson RS, Mayhew SD, Assecondi S, Arvanitis TN, Bagshaw AP, Darque A, Rihs TA, Grouiller F, Lazeyras F, Ha-Vinh Leuchter R, Caballero C, Michel CM, Hüppi PS, Hauser TU, Hunt LT, Iannaccone R, Stämpfli P, Brandeis D, Dolan RJ, Walitza S, Brem S, Graichen U, Eichardt R, Fiedler P, Strohmeier D, Freitag S, Zanow F, Haueisen J, Lordier L, Grouiller F, Van de Ville D, Sancho Rossignol A, Cordero I, Lazeyras F, Ansermet F, Hüppi P, Schläpfer A, Rubia K, Brandeis D, Di Lorenzo G, Pagani M, Monaco L, Daverio A, Giannoudas I, Verardo AR, La Porta P, Niolu C, Fernandez I, Siracusano A, Tamura K, Karube C, Mizuba T, Matsufuji M, Takashima S, Iramina K, Assecondi S, Ostwald D, Bagshaw AP, Marecek R, Brazdil M, Lamos M, Slavícek T, Marecek R, Jan J, Meier NM, Perrig W, Koenig T, Minami T, Noritake Y, Nakauchi S, Azuma K, Minami T, Nakauchi S, Rodriguez C, Lenartowicz A, Cohen MS, Rodriguez C, Lenartowicz A, Cohen MS, Iramina K, Kinoshita H, Tamura K, Karube C, Kaneko M, Ide J, Noguchi Y, Cohen MS, Douglas PK, Rodriguez CM, Xia HJ, Zimmerman EM, Konopka CJ, Epstein PS, Konopka LM, Giezendanner S, Fisler M, Soravia L, Andreotti J, Wiest R, Dierks T, Federspiel A, Razavi N, Federspiel A, Dierks T, Hauf M, Jann K, Kamada K, Sato D, Ito Y, Okano K, Mizutani N, Kobayashi T, Thelen A, Murray M, Pastena L, Formaggio E, Storti SF, Faralli F, Melucci M, Gagliardi R, Ricciardi L, Ruffino G, Coito A, Macku P, Tyrand R, Astolfi L, He B, Wiest R, Seeck M, Michel C, Plomp G, Vulliemoz S, Fischmeister FPS, Glaser J, Schöpf V, Bauer H, Beisteiner R, Deligianni F, Centeno M, Carmichael DW, Clayden J, Mingoia G, Langbein K, Dietzek M, Wagner G, Smesny S, Scherpiet S, Maitra R, Gaser C, Sauer H, Nenadic I, Dürschmid S, Zaehle T, Pannek H, Chang HF, Voges J, Rieger J, Knight RT, Heinze HJ, Hinrichs H, Tsatsishvili V, Cong F, Puoliväli T, Alluri V, Toiviainen P, Nandi AK, Brattico E, Ristaniemi T, Grieder M, Crinelli RM, Jann K, Federspiel A, Wirth M, Koenig T, Stein M, Wahlund LO, Dierks T, Atsumori H, Yamaguchi R, Okano Y, Sato H, Funane T, Sakamoto K, Kiguchi M, Tränkner A, Schindler S, Schmidt F, Strauß M, Trampel R, Hegerl U, Turner R, Geyer S, Schönknecht P, Kebets V, van Assche M, Goldstein R, van der Meulen M, Vuilleumier P, Richiardi J, Van De Ville D, Assal F, Wozniak-Kwasniewska A, Szekely D, Harquel S, Bougerol T, David O, Bracht T, Jones DK, Horn H, Müller TJ, Walther S, Sos P, Klirova M, Novak T, Brunovsky M, Horacek J, Bares M, Hoschl C C, Fellhauer I, Zöllner FG, Schröder J, Kong L, Essig M, Schad LR, Arrubla J, Neuner I, Hahn D, Boers F, Shah NJ, Neuner I, Arrubla J, Hahn D, Boers F, Jon Shah N, Suriya Prakash M, Sharma R, Kawaguchi H, Kobayashi T, Fiedler P, Griebel S, Biller S, Fonseca C, Vaz F, Zentner L, Zanow F, Haueisen J, Rochas V, Rihs T, Thut G, Rosenberg N, Landis T, Michel C, Moliadze V, Schmanke T, Lyzhko E, Bassüner S, Freitag C, Siniatchkin M, Thézé R, Guggisberg AG, Nahum L, Schnider A, Meier L, Friedrich H, Jann K, Landis B, Wiest R, Federspiel A, Strik W, Dierks T, Witte M, Kober SE, Neuper C, Wood G, König R, Matysiak A, Kordecki W, Sieluzycki C, Zacharias N, Heil P, Wyss C, Boers F, Arrubla J, Dammers J, Kawohl W, Neuner I, Shah NJ, Braboszcz C, Cahn RB, Levy J, Fernandez M, Delorme A, Rosas-Martinez L, Milne E, Zheng Y, Urakami Y, Kawamura K, Washizawa Y, Hiyoshi K, Cichocki A, Giroud N, Dellwo V, Meyer M, Rufener KS, Liem F, Dellwo V, Meyer M, Jones-Rounds JD, Raizada R, Staljanssens W, Strobbe G, van Mierlo P, Van Holen R, Vandenberghe S, Pefkou M, Becker R, Michel C, Hervais-Adelman A, He W, Brock J, Johnson B, Ohla K, Hitz K, Heekeren K, Obermann C, Huber T, Juckel G, Kawohl W, Gabriel D, Comte A, Henriques J, Magnin E, Grigoryeva L, Ortega JP, Haffen E, Moulin T, Pazart L, Aubry R, Kukleta M, Baris Turak B, Louvel J, Crespo-Garcia M, Cantero JL, Atienza M, Connell S, Kilborn K, Damborská A, Brázdil M, Rektor I, Kukleta M, Koberda JL, Bienkiewicz A, Koberda I, Koberda P, Moses A, Tomescu M, Rihs T, Britz J, Custo A, Grouiller F, Schneider M, Debbané M, Eliez S, Michel C, Wang GY, Kydd R, Wouldes TA, Jensen M, Russell BR, Dissanayaka N, Au T, Angwin A, O'Sullivan J, Byrne G, Silburn P, Marsh R, Mellic G, Copland D, Bänninger A, Kottlow M, Díaz Hernàndez L, Koenig T, Díaz Hernàndez L, Bänninger A, Koenig T, Hauser TU, Iannaccone R, Mathys C, Ball J, Drechsler R, Brandeis D, Walitza S, Brem S, Boeijinga PH, Pang EW, Valica T, Macdonald MJ, Oh A, Lerch JP, Anagnostou E, Di Lorenzo G, Pagani M, Monaco L, Daverio A, Verardo AR, Giannoudas I, La Porta P, Niolu C, Fernandez I, Siracusano A, Shimada T, Matsuda Y, Monkawa A, Monkawa T, Hashimoto R, Watanabe K, Kawasaki Y, Matsuda Y, Shimada T, Monkawa T, Monkawa A, Watanabe K, Kawasaki Y, Stegmayer K, Horn H, Federspiel A, Razavi N, Bracht T, Laimböck K, Strik W, Dierks T, Wiest R, Müller TJ, Walther S, Koorenhof LJ, Swithenby SJ, Martins-Mourao A, Rihs TA, Tomescu M, Song KW, Custo A, Knebel JF, Murray M, Eliez S, Michel CM, Volpe U, Merlotti E, Vignapiano A, Montefusco V, Plescia GM, Gallo O, Romano P, Mucci A, Galderisi S, Laimboeck K, Jann K, Walther S, Federspiel A, Wiest R, Strik W, Horn H. Abstracts of Presentations at the International Conference on Basic and Clinical Multimodal Imaging (BaCI), a Joint Conference of the International Society for Neuroimaging in Psychiatry (ISNIP), the International Society for Functional Source Imaging (ISFSI), the International Society for Bioelectromagnetism (ISBEM), the International Society for Brain Electromagnetic Topography (ISBET), and the EEG and Clinical Neuroscience Society (ECNS), in Geneva, Switzerland, September 5-8, 2013. Clin EEG Neurosci 2013; 44:1550059413507209. [PMID: 24368763 DOI: 10.1177/1550059413507209] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- B J He
- National Institutes of Health, Bethesda, MD, USA
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Mollet L, Grimonprez A, Raedt R, Delbeke J, El Tahry R, De Herdt V, Meurs A, Wadman W, Boon P, Vonck K. Intensity-dependent modulatory effects of vagus nerve stimulation on cortical excitability. Acta Neurol Scand 2013; 128:391-6. [PMID: 23614853 DOI: 10.1111/ane.12135] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/13/2013] [Indexed: 11/29/2022]
Abstract
OBJECTIVES Vagus nerve stimulation (VNS) is an effective treatment for refractory epilepsy. It remains unknown whether VNS efficacy is dependent on output current intensity. The present study investigated the effect of various VNS output current intensities on cortical excitability in the motor cortex stimulation rat model. The hypothesis was that output current intensities in the lower range are sufficient to significantly affect cortical excitability. MATERIAL AND METHODS VNS at four output current intensities (0 mA, 0.25 mA, 0.5 mA and 1 mA) was randomly administered in rats (n = 15) on four consecutive days. Per output current intensity, the animals underwent five-one-hour periods: (i) baseline, (ii) VNS1, (iii) wash-out1, (iv) VNS2 and (v) wash-out2. After each one-hour period, the motor seizure threshold (MST) was measured and compared to baseline (i.e. ∆MSTbaseline , ∆MSTVNS 1 , ∆MSTwash-out1 , ∆MSTVNS 2 and ∆MSTwash-out2 ). Finally, the mean ∆MSTbaseline , mean ∆MSTwash-out1 , mean ∆MSTwash-out2 and mean ∆MSTVNS per VNS output current intensity were calculated. RESULTS No differences were found between the mean ∆MSTbaseline , mean ∆MSTwash-out1 and mean ∆MSTwash-out2 within each VNS output current intensity. The mean ∆MSTVNS at 0 mA, 0.25 mA, 0.5 mA and 1 mA was 15.3 ± 14.6 μA, 101.8 ± 23.5 μA, 108.1 ± 24.4 μA and 85.7 ± 18.1 μA respectively. The mean ∆MSTVNS at 0.25 mA, 0.5 mA and 1 mA were significantly larger compared to the mean ∆MSTVNS at 0 mA (P = 0.002 for 0.25 mA; P = 0.001 for 0.5 mA; P = 0.011 for 1 mA). CONCLUSIONS This study confirms efficacy of VNS in the motor cortex stimulation rat model and indicates that, of the output current intensities tested, 0.25 mA is sufficient to decrease cortical excitability and higher output current intensities may not be required.
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Affiliation(s)
- L. Mollet
- Laboratory for Clinical and Experimental Neurophysiology, Neurobiology and Neuropsychology (LCEN3); Department of Neurology; Institute for Neuroscience; Ghent University Hospital; Ghent Belgium
| | - A. Grimonprez
- Laboratory for Clinical and Experimental Neurophysiology, Neurobiology and Neuropsychology (LCEN3); Department of Neurology; Institute for Neuroscience; Ghent University Hospital; Ghent Belgium
| | - R. Raedt
- Laboratory for Clinical and Experimental Neurophysiology, Neurobiology and Neuropsychology (LCEN3); Department of Neurology; Institute for Neuroscience; Ghent University Hospital; Ghent Belgium
| | - J. Delbeke
- Institute of Neuroscience; Medical School; Université catholique de Louvain; Brussels Belgium
| | - R. El Tahry
- Laboratory for Clinical and Experimental Neurophysiology, Neurobiology and Neuropsychology (LCEN3); Department of Neurology; Institute for Neuroscience; Ghent University Hospital; Ghent Belgium
| | - V. De Herdt
- Laboratory for Clinical and Experimental Neurophysiology, Neurobiology and Neuropsychology (LCEN3); Department of Neurology; Institute for Neuroscience; Ghent University Hospital; Ghent Belgium
| | - A. Meurs
- Laboratory for Clinical and Experimental Neurophysiology, Neurobiology and Neuropsychology (LCEN3); Department of Neurology; Institute for Neuroscience; Ghent University Hospital; Ghent Belgium
| | - W. Wadman
- Department of Neurobiology; Swammerdam Institute of Life Sciences; University of Amsterdam; Amsterdam The Netherlands
| | - P. Boon
- Laboratory for Clinical and Experimental Neurophysiology, Neurobiology and Neuropsychology (LCEN3); Department of Neurology; Institute for Neuroscience; Ghent University Hospital; Ghent Belgium
| | - K. Vonck
- Laboratory for Clinical and Experimental Neurophysiology, Neurobiology and Neuropsychology (LCEN3); Department of Neurology; Institute for Neuroscience; Ghent University Hospital; Ghent Belgium
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Santos-Moreno P, Sandoval C, Villarreal L, Real AP, Boon P, Palomino A, Urbina A, Bello J. SAT0072 Effectiveness of Using a Treat to Target Strategy in a Large Cohort Of Rheumatoid Arthritis Patients During 2 Years In A Real-Life Setting. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.1798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Urbina A, Beltran D, Sandoval C, Villarreal L, Real AP, Boon P, Palomino A, Santos-Moreno P. AB0846-HPR Independence in daily life activities in patients with rheumatoid arthritis and correlation with personal causation, disease activity and functionality. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.3168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Beltran D, Urbina A, Sandoval C, Villarreal L, Real AP, Boon P, Palomino A, Santos-Moreno P. SAT0582-HPR Occupational Characterization and Relation between Working Condition and Disease Activity or Functionality in Patients with Rheumatoid Arthritis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.2306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Santos-Moreno P, Sandoval C, Villarreal L, Real AP, Boon P, Palomino A, Urbina A, Bello J. FRI0181 Effectiveness of biological therapy using a treat to target strategy in patients with rheumatoid arthritis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.1308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Urbina A, Sandoval C, Beltran D, Villarreal L, Real AP, Boon P, Palomino A, Bello J, Santos-Moreno P. AB0845-HPR Impact of occupational therapy treatment in daily life activities dependence in a cohort of rheumatoid arthritis patients. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.3167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Martlé V, Peremans K, Van Ham L, Vermeire S, Waelbers T, Dobbeleir A, Gielen I, Boon P, Claes K, Bhatti S. High-resolution micro-SPECT to evaluate the regional brain perfusion in the adult Beagle dog. Res Vet Sci 2013; 94:701-6. [DOI: 10.1016/j.rvsc.2012.11.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2012] [Revised: 10/29/2012] [Accepted: 11/17/2012] [Indexed: 11/30/2022]
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Villarreal L, Sandoval C, Real AP, Boon P, Palomino A, Bello J, Santos-Moreno P. AB0828-HPR Psychological and sexual disorders in patients with rheumatoid arthritis and correlation with disease activity. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.3150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Santos-Moreno P, Villarreal L, Sandoval C, Real AP, Boon P, Palomino A. AB0784 Adherence rate to conventional dmards in patients with rheumatoid arthritis using biologics in a real-life setting. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.3106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Santos-Moreno P, Sandoval C, Villarreal L, Real AP, Boon P, Palomino A, Urbina A, Bello J. THU0251 Effectiveness of Conventional Dmards Using a Treat to Target Strategy in the Context of a Large Cohort of Rheumatoid Arthritis Patients. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Leone MA, Brainin M, Boon P, Pugliatti M, Keindl M, Bassetti CL. Guidance for the preparation of neurological management guidelines by EFNS scientific task forces - revised recommendations 2012. Eur J Neurol 2013; 20:410-419. [PMID: 23323801 DOI: 10.1111/ene.12043] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2012] [Accepted: 10/19/2012] [Indexed: 12/20/2022]
Abstract
This paper is meant to provide guidance to anyone wishing to write a neurological guideline for diagnosis or treatment, and is directed at the Scientist Panels and task forces of the European Federation of Neurological Societies (EFNS). It substitutes the previous guidance paper from 2004. It contains several new aspects: the guidance is now based on a change of the grading system for evidence and for the resulting recommendations, and has adopted The Grading of Recommendations, Assessment, Development and Evaluation system (GRADE). The process of grading the quality of evidence and strength of recommendations can now be improved and made more transparent. The task forces embarking on the development of a guideline must now make clearer and more transparent choices about outcomes considered most relevant when searching the literature and evaluating their findings. Thus, the outcomes chosen will be more critical, more patient-oriented and easier to translate into simple recommendations. This paper also provides updated practical recommendations for planning a guideline task force within the framework of the EFNS. Finally, this paper hopes to find the approval also by the relevant bodies of our future organization, the European Academy of Neurology.
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Affiliation(s)
- M A Leone
- Head and Neck Department, SCDU Neurology, Maggiore della Carità Hospital, Novara, Italy
| | - M Brainin
- Department of Clinical Neurosciences and Preventive Medicine, Donau-Universität Krems, Krems, Austria
| | - P Boon
- Department of Neurology, Institute of Neuroscience, University Hospital, Ghent, Belgium
| | - M Pugliatti
- Department of Clinical and Experimental Medicine, Unit of Clinical Neurology, University of Sassari, Sassari, Italy
| | - M Keindl
- Department of Clinical Neurosciences and Preventive Medicine, Donau-Universität Krems, Krems, Austria
| | - C L Bassetti
- Neurology Department, Inselspital Bern, University Hospital, Bern, Switzerland
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van Houdt P, Ossenblok P, Colon A, Leijten F, Boon P, de Munck J. The role of EEG-correlated fMRI in presurgical evaluation of epilepsy surgery. Neurophysiol Clin 2013. [DOI: 10.1016/j.neucli.2012.11.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Boon P, Te Biesebeek J, Sioen I, Huybrechts I, Moschandreas J, Ruprich J, Turrini A, Azpiri M, Busk L, Christensen T, Kersting M, Lafay L, Liukkonen KH, Papoutsou S, Serra-Majem L, Traczyk I, De Henauw S, Van Klaveren J. Long-term dietary exposure to lead in young European children: comparing a pan-European approach with a national exposure assessment. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2012; 29:1701-15. [DOI: 10.1080/19440049.2012.709544] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Ebus S, Arends J, Hendriksen J, van der Horst E, de la Parra N, Hendriksen R, Santegoeds E, Boon P, Aldenkamp B. Cognitive effects of interictal epileptiform discharges in children. Eur J Paediatr Neurol 2012; 16:697-706. [PMID: 22750349 DOI: 10.1016/j.ejpn.2012.05.010] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2011] [Revised: 04/01/2012] [Accepted: 05/08/2012] [Indexed: 10/28/2022]
Abstract
Frequent interictal epileptiform discharges (IEDs) may have effects on cognition. We analysed a group of 182 children with different epilepsy syndromes as well as children with IEDs without observed seizures [corrected], with 24-h ambulatory EEG and cognitive tests. The IED index was estimated, in wakefulness and in sleep, as percentage of time in five categories (0%, <1%, 1-10%, ≥10-50% and ≥50%). IEDs were defined as spikes or spike-wave complexes, isolated or occurring serially (in runs) without evident clinical signs of a seizure. The IED categories were correlated to cognitive test results and epilepsy characteristics. The group of patients with diurnal IEDs in ≥10% of the EEG record showed impaired central information processing speed, short-term verbal memory and visual-motor integration. This effect was seen independently from other EEG-related and epilepsy-related characteristics, and independently from epilepsy syndrome diagnosis. The impact of the nocturnal IEDs was of less importance; only contributing partially to the slowing of central information processing speed. We conclude that frequent IEDs (in more than 10% of the record) in the awake EEG can impair cognitive performance in children. Whether children with a high diurnal spike frequency and low seizure frequency can benefit from antiepileptic treatment should be examined in controlled trials.
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Affiliation(s)
- S Ebus
- Epilepsy Centre Kempenhaeghe, Postbus 61, 5590 AB Heeze, The Netherlands.
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Cooper K, Whelan M, Kennedy D, Trigueros G, Cannavan A, Boon P, Wapperom D, Danaher M. Anthelmintic drug residues in beef: UPLC-MS/MS method validation, European retail beef survey, and associated exposure and risk assessments. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2012; 29:746-60. [DOI: 10.1080/19440049.2011.653696] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Van Loo P, Carrette E, Meurs A, Goossens L, Van Roost D, Vonck K, Boon P. Surgical successes and failures of invasive video-EEG monitoring in the presurgical evaluation of epilepsy. Panminerva Med 2011; 53:227-240. [PMID: 22146420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Invasive monitoring with intracranial electrodes continues to play a critical role in the presurgical evaluation of patients with medically intractable epilepsy. Intracranial monitoring helps in localizing the epileptogenic zone and can be used to delineate eloquent cortical areas adjacent to this zone. In this review we analyzed surgical successes and failures of invasive video-electroencephalography (EEG) monitoring. Thorough understanding of all potential complications is of paramount importance not only for detection and successful management of intractable epilepsy but also for medicolegal purposes, as patients and their relatives need to be fully informed about the possible risks associated with invasive monitoring. A mortality rate between 0.5% and 2.8% has been reported. Cerebrospinal fluid (CSF) leaks and infections are the most frequent complications, with an incidence ranging from 0-31.3% and from 0-17.4%, respectively. The incidence of intracranial hemorrhage is reported to be up to 14% with subdural hematomas being the most prevalent. Epidural hematomas are less frequent and encountered in up to 2.6% of cases. Intraparenchymal hematomas are even less frequent and are typically associated with the placement of depth electrodes. In 47-98% of cases, invasive video-EEG monitoring results into resective surgery. Invasive video-EEG monitoring is a reasonably safe and effective method to help delineate the epileptogenic zone and its relation to eloquent cortex.
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Affiliation(s)
- P Van Loo
- Department of Neurosurgery, Reference Center for Refractory Epilepsy, Ghent University Hospital, Belgium
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Brainin M, Berardelli A, Boon P, Gilhus NE, Leys D, Ludolph A, Schapira AHV, Skvortskova V. Comment from the EFNS Scientific Committee on the letter from Gunther Haag concerning Bendsten L et al. EFNS guideline on the treatment of tension-type headache - report of an EFNS task force. Eur J Neurol 2010; 17: 1318-1325. Eur J Neurol 2011; 18:e83-4. [DOI: 10.1111/j.1468-1331.2011.03382.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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De Neve M, Sioen I, Boon P, Arganini C, Moschandreas J, Ruprich J, Lafay L, Amiano P, Arcella D, Azpiri M, Busk L, Christensen T, D’addezio L, Fabiansson S, Hilbig A, Hirvonen T, Kersting M, Koulouridaki S, Liukkonen KH, Oltarzewski M, Papoutsou S, Rehurkova I, Ribas-Barba L, Serra-Majem L, Tornaritis M, Trolle E, Van Klaveren J, Verger E, Walkiewicz A, Westerlund A, De Henauw S, Huybrechts I. Harmonisation of food categorisation systems for dietary exposure assessments among European children. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2010; 27:1639-51. [DOI: 10.1080/19440049.2010.521957] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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De Herdt V, De Waele J, Raedt R, Wyckhuys T, El Tahry R, Vonck K, Wadman W, Boon P. Modulation of seizure threshold by vagus nerve stimulation in an animal model for motor seizures. Acta Neurol Scand 2010; 121:271-6. [PMID: 20003088 DOI: 10.1111/j.1600-0404.2009.01223.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVE The precise mechanism of action of vagus nerve stimulation (VNS) in suppressing epileptic seizures remains to be elucidated. This study investigates whether VNS modulates cortical excitability by determining the threshold for provoking focal motor seizures by cortical electrical stimulation before and after VNS. MATERIAL AND METHODS Male Wistar rats (n = 8) were implanted with a cuff-electrode around the left vagus nerve and with stimulation electrodes placed bilaterally on the rat motor cortex. Motor seizure threshold (MST) was assessed for each rat before and immediately after 1 h of VNS with standard stimulation parameters, during two to three sessions on different days. RESULTS An overall significant increase of the MST was observed following 1 h of VNS compared to the baseline value (1420 microA and 1072 microA, respectively; P < 0.01). The effect was reproducible over time with an increase in MST in each experimental session. CONCLUSIONS VNS significantly increases the MST in a cortical stimulation model for motor seizures. These data indicate that VNS is capable of modulating cortical excitability.
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Colon A, Hofman P, Ossenblok P, Jansen J, ter Beek L, Berting R, Stam C, Boon P. MRS-lateralisation index in patients with epilepsy and focal cortical dysplasia or a MEG-focus using bilateral single voxels. Epilepsy Res 2010; 89:148-53. [DOI: 10.1016/j.eplepsyres.2009.11.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2009] [Revised: 11/07/2009] [Accepted: 11/15/2009] [Indexed: 10/20/2022]
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Dermaut B, Seneca S, Dom L, Smets K, Ceulemans L, Smet J, De Paepe B, Tousseyn S, Weckhuysen S, Gewillig M, Pals P, Parizel P, De Bleecker JL, Boon P, De Meirleir L, De Jonghe P, Van Coster R, Van Paesschen W, Santens P. Progressive myoclonic epilepsy as an adult-onset manifestation of Leigh syndrome due to m.14487T>C. J Neurol Neurosurg Psychiatry 2010; 81:90-3. [PMID: 20019223 DOI: 10.1136/jnnp.2008.157354] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND m.14487T>C, a missense mutation (p.M63V) affecting the ND6 subunit of complex I of the mitochondrial respiratory chain, has been reported in isolated childhood cases with Leigh syndrome (LS) and progressive dystonia. Adult-onset phenotypes have not been reported. OBJECTIVES To determine the clinical-neurological spectrum and associated mutation loads in an extended m.14487T>C family. METHODS A genotype-phenotype correlation study of a Belgian five-generation family with 12 affected family members segregating m.14487T>C was carried out. Clinical and mutation load data were available for nine family members. Biochemical analysis of the respiratory chain was performed in three muscle biopsies. RESULTS Heteroplasmic m.14487T>C levels (36-52% in leucocytes, 97-99% in muscle) were found in patients with progressive myoclonic epilepsy (PME) and dystonia or progressive hypokinetic-rigid syndrome. Patients with infantile LS were homoplasmic (99-100% in leucocytes, 100% in muscle). We found lower mutation loads (between 8 and 35% in blood) in adult patients with clinical features including migraine with aura, Leber hereditary optic neuropathy, sensorineural hearing loss and diabetes mellitus type 2. Despite homoplasmic mutation loads, complex I catalytic activity was only moderately decreased in muscle tissue. INTERPRETATION m.14487T>C resulted in a broad spectrum of phenotypes in our family. Depending on the mutation load, it caused severe encephalopathies ranging from infantile LS to adult-onset PME with dystonia. This is the first report of PME as an important neurological manifestation of an isolated mitochondrial complex I defect.
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Affiliation(s)
- B Dermaut
- Department of Neurology, University Hospital Ghent, Ghent University, Ghent, Belgium
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Affiliation(s)
- H Meierkord
- Institute of Neurophysiology, Charité - Universitätsmedizin Berlin, Berlin, Germany.
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Legros B, Boon P, De Jonghe P, Sadzot B, Van Rijckevorsel K, Schmedding E. Opinion of Belgian neurologists on antiepileptic drug treatment in 2006: Belgian study on epilepsy treatment (BESET-2). Acta Neurol Scand 2009; 120:402-10. [PMID: 19804468 DOI: 10.1111/j.1600-0404.2009.01182.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVES (i) To describe the medical treatment of epilepsy in Belgium in 2006, (ii) to detect the presence or absence of consensus in epilepsy treatment and (iii) to analyze the evolution of the neurologists' opinion between 2003 and 2006. MATERIALS AND METHODS In December 2006, 100 neurologists were interviewed with a structured questionnaire, based on ordinal four-point scales. The questionnaire contained questions on treatment choices in adult patients with epilepsy. The results of this survey were compared with results of a previous one done in 2003. RESULTS Initial monotherapy was the preferred treatment strategy. Valproate was first choice in idiopathic generalized epilepsy. Carbamazepine and oxcarbazepine were first choice in focal epilepsy with partial seizures. Valproate was also first choice in focal epilepsy with secondarily generalized seizures. New antiepileptic drugs were recommended in second line. However, in special treatment situations, they were considered first-line, e.g. lamotrigine in case of women in childbearing age. In comparison with 2003, there was a trend of using earlier the new antiepileptic drugs. CONCLUSIONS In end 2006, carbamazepine, valproate and oxcarbazepine were considered to be first choice drugs, whereas other newer drugs, like lamotrigine, levetiracetam and topiramate were predominantly prescribed in second line.
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Affiliation(s)
- B Legros
- Department of Neurology, ULB-Hôpital Erasme, Reference Center for the Treatment of Refractory Epilepsy, 808, route de Lennik, 1070 Bruxelles, Belgium.
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Terwecoren A, Steen E, Benoit D, Boon P, Hemelsoet D. Ischemic stroke and hyperhomocysteinemia: truth or myth? Acta Neurol Belg 2009; 109:181-188. [PMID: 19902811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Hyperhomocysteinemia is generally acknowledged as a treatable risk factor for atherotrombotic diseases, but a causal relationship between both is not yet definitively established. Hyperhomocysteinemia originates from a deviation in the methionine-homocysteine metabolism including disturbances of enzymes, vitamin deficiencies and different other factors. Observational studies, genetic polymorphism studies and several meta-analyses implicate already a causal relation between homocysteine and cerebrovascular diseases. It is useful to determine homocysteine levels for stroke who present no clue for vascular disease and thrombosis, who have an ischemic stroke at a young age and who have a family history of premature atherosclerosis. Because of the low cost and safety of the therapy, the American Heart and Stroke Association advises to treat patients with a stroke and hyperhomocysteinemia daily with 0,4 mg folic acid, 2,4 microg vitamin B12 and 1,7 mg vitamin B6. A significant benefit in secondary prevention is not yet proven. The results of larger follow-up trials have to be published.
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Affiliation(s)
- A Terwecoren
- Department of Neurology, Ghent University, Ghent, Belgium.
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