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Le Roux M, Benallegue N, Gueden S, Rupin-Mas M, Van Bogaert P. Care of pharmaco-resistant absence seizures in childhood. Rev Neurol (Paris) 2024; 180:251-255. [PMID: 38388226 DOI: 10.1016/j.neurol.2024.01.002] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 01/03/2024] [Accepted: 01/08/2024] [Indexed: 02/24/2024]
Abstract
In childhood absence epilepsy, pharmaco-resistance occurs in 20-30% of patients. In that situation, glucose transporter type 1 deficiency has to be ruled out, especially if absences started before the age of four years and if neurological signs are present. If ethosuximide, valproate and lamotrigine have failed in monotherapy or in association, there are currently no valuable therapeutic options. The same rules apply for epilepsy with myoclonic absences. Importantly, arguments supporting that making the patient seizure-free will improve eventual associated cognitive deficits such as attention deficit are very weak. Therefore, limiting the cognitive side effects of the anti-epileptic drugs has always to be a priority when faced with typical refractory absences in childhood. In epilepsy with eyelid myoclonia, the majority of patients are pharmaco-resistant. However, absence seizures, if present, tend to be very brief, and seizures are limited in many patients to eyelid myoclonia that eventually do not affect their quality of life and are well attenuated by wearing blue lenses. Atypical absences occurring in the course a developmental and/or epileptic encephalopathy are often pharmaco-resistant. In that situation, characterizing the type of epilepsy syndrome and searching for a specific genetic or structural etiology are needed to offer the best therapeutic options to the patient.
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Affiliation(s)
- M Le Roux
- Department of Pediatric Neurology, CHU d'Angers, Angers, France
| | - N Benallegue
- Department of Pediatric Neurology, CHU d'Angers, Angers, France
| | - S Gueden
- Department of Pediatric Neurology, CHU d'Angers, Angers, France
| | - M Rupin-Mas
- Department of Pediatric Neurology, CHU d'Angers, Angers, France
| | - P Van Bogaert
- Department of Pediatric Neurology, CHU d'Angers, Angers, France; Laboratoire Angevin de Recherche en Ingénierie des Systèmes (LARIS), Université d'Angers, Angers, France.
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Somville F, Van Bogaert P, Wellens B, De Cauwer H, Franck E. Work stress and burnout among emergency physicians: a systematic review of last 10 years of research. Acta Clin Belg 2024; 79:52-61. [PMID: 37889050 DOI: 10.1080/17843286.2023.2273611] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Accepted: 10/17/2023] [Indexed: 10/28/2023]
Abstract
AIM OF THE STUDY First, to provide a synthesis and analysis of available scientific literature regarding the level of work stress and burnout among emergency physicians. Second, to identify the effect of the specific work situation-related factors. METHODS A systematic search was performed in NCBI PubMed and Embase. Comparative primary studies, both systematic review and cross-sectional, quantifying burnout in emergency physicians were included. Only studies published between 2011 and 2022 were retained. Synonym sets were compiled for the search key for 'burnout & stress', 'emergency', 'physician' and 'burnout & posttraumatic stress disorder'. RESULTS Thirty-five papers were retained for further research. Emergency physicians scored significantly higher for all dimensions of burnout compared to other healthcare professions. Significant correlations for burnout were found with work characteristic and organizational factors. Critical incidents and aggression were identified as the most important acute work characteristics and organizational factors impacting emergency physician's mental wellbeing including the development of posttraumatic stress disorder. Moreover, personal factors such as age, personality, and coping strategies also play an important role in the development of burnout as well as work-related trauma. CONCLUSION Available studies show that emergency physicians report higher scores of emotional exhaustion and depersonalization when compared to other healthcare professionals. Work characteristics contribute to this, but work-related traumatic incidents and aggression are important determinants. Personal characteristics such as age, personality type D, previous experiences and coping strategies seem to be determining factors likewise. Emergency physicians showed a high risk for developing burnout and work stress-related problems.
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Affiliation(s)
- F Somville
- Department of Emergency Medicine, University of Antwerp, Edegem, Belgium
- Department of Emergency and Traumatology, AZ St Dimpna, Geel, Belgium
- Department of Nursing and Midwifery Sciences, Centre for Research and Innovation in Care (CRIC), Wilrijk, Belgium
- Faculty of Medicine and Health Sciences, University of Antwerp, Wilrijk, Belgium
| | - P Van Bogaert
- Department of Nursing and Midwifery Sciences, Centre for Research and Innovation in Care (CRIC), Wilrijk, Belgium
| | - B Wellens
- Department of Emergency and Traumatology, AZ St Dimpna, Geel, Belgium
| | - H De Cauwer
- Faculty of Medicine and Health Sciences, University of Antwerp, Wilrijk, Belgium
- Department of Neurology, AZ St Dimpna, Geel, Belgium
| | - E Franck
- Department of Nursing and Midwifery Sciences, Centre for Research and Innovation in Care (CRIC), Wilrijk, Belgium
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3
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Van Bogaert P, Nabbout R. Updating Tuberous sclerosis complex care for pediatric neurologists. Arch Pediatr 2022; 29:5S1-5S2. [PMID: 36585065 DOI: 10.1016/s0929-693x(22)00282-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- P Van Bogaert
- Service de neuropédiatrie et neurochirurgie de l'enfant, CHU d'Angers, France; Laboratoire Angevin de Recherche en Ingénierie des Systèmes (LARIS), Université d'Angers, France
| | - R Nabbout
- Service de neuropédiatrie, Hôpital Necker-Enfants Malades, APHP Paris, Université Paris cité, Paris, France; INSERM U1163, Chaire GEEN-DS, institute Imagine, Paris, France
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4
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Van Bogaert P. Long-term outcome of developmental and epileptic encephalopathies. Rev Neurol (Paris) 2022; 178:659-665. [PMID: 35489823 DOI: 10.1016/j.neurol.2022.01.009] [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: 11/23/2021] [Revised: 01/15/2022] [Accepted: 01/18/2022] [Indexed: 11/16/2022]
Abstract
Developmental and epileptic encephalopathies are conditions where there is developmental impairment related to both the underlying etiology independent of epileptiform activity and the epileptic encephalopathy. Usually they have multiple etiologies. Therefore, long-term outcome is related to both etiology-related factors and epilepsy-related factors-age at onset of epilepsy, type(s) of seizure(s), type of electroencephalographic abnormalities, duration of the epileptic disorder. This paper focuses on long-term outcome of six developmental and epileptic encephalopathies with onset from the neonatal period to childhood: early epileptic encephalopathy with suppression bursts, West syndrome, Dravet syndrome, Lennox-Gastaut syndrome, epilepsy with myoclonic atonic seizures and epileptic encephalopathy with continuous spike and waves during slow-wave sleep including Landau-Kleffner syndrome. For each syndrome, definition, main etiologies if multiple, and long-term outcome are discussed.
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Affiliation(s)
- P Van Bogaert
- Department of Pediatric Neurology, CHU d'Angers, and Laboratoire Angevin de Recherche en Ingénierie des Systèmes (LARIS), Université d'Angers, 4, rue Larrey, 49000 Angers, France.
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Van Hecke A, Van Bogaert P, Decoene E, Dobbels F, Goossens E, Goossens G, Verhaeghe S, Goffin T. A legal framework on advanced practice nursing in Belgium: what do we and don't we know? Acta Clin Belg 2022; 77:65-70. [PMID: 32700632 DOI: 10.1080/17843286.2020.1795575] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
OBJECTIVES Presenting the Belgian new framework for Advanced Practice Nursing (APN) - 'Verpleegkundig Specialist [VS]'/"Infirmier de pratique avancée [IPA]" outlined in the Law of 22 April 2019, followed by a discussion of the lack of clarity, the current challenges and future opportunities. METHODS The framework was analyzed by an expert in healthcare legislation and discussed by academics in Nursing Science and members of the board of directors of the Belgian Society of APN. RESULTS Relevant paragraphs within this new law are"Article 46 §1. No one is allowed to carry the title of 'VS/IPA' who does not possess a bachelor in nursing mentioned in article 45 and who does not meet the requirements specified in this article. At the minimum, a master's degree in Nursing Sciences is also required. §2. Additional to the scope of practice of nursing as mentioned in article 46, the 'VS/IPA' perform, in the context of complex nursing care, medical interventions in order to maintain, improve or restore the health of the patient. Care is provided in the context of a specific target group of patients and in close concertation with the physician and potential other healthcare professionals. CONCLUSION Although the legal recognition of the title of VS/IPA is a major breakthrough that will innovate healthcare, clarification is needed: How do VS/IPA distinguish themselves from other nursing functions, what is complex nursing care, which medical interventions can be performed, what is meant by specific target group of patients, what does 'in close concertation with the physician' entail, and will advisory power be possible?
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Affiliation(s)
- A. Van Hecke
- University Centre for Nursing and Midwifery, Department of Public Health and Primary Care, Ghent University, Ghent, Belgium
- Nursing Department, Ghent University Hospital, Ghent, Belgium
| | - P. Van Bogaert
- Center for Research and Innovation in Care, Department of Midwifery and Nursing Sciences, Antwerp University, Antwerp, Belgium
| | - E. Decoene
- Department of Oncology, Oncology Centre, Ghent University Hospital, Ghent, Belgium
| | - F. Dobbels
- Academic Centre for Nursing and Midwifery, Department of Public Health and Primary Care, Leuven, Belgium
| | - E. Goossens
- Center for Research and Innovation in Care, Department of Midwifery and Nursing Sciences, Antwerp University, Antwerp, Belgium
- Academic Center for Nursing and Midwifery, Department of Public Health and Primary Care, Leuven, Belgium
| | - G.A. Goossens
- Academic Centre for Nursing and Midwifery, Department of Public Health and Primary Care, Leuven, Belgium
- Department of Nursing, Nursing Centre of Excellence, University Hospitals, Leuven, Belgium
| | - S. Verhaeghe
- University Centre for Nursing and Midwifery, Department of Public Health and Primary Care, Ghent University, Ghent, Belgium
- Department of Nursing, VIVES University College, Roeselare, Belgium
| | - T. Goffin
- Department of Public Health and Primary Care, Ghent University, Ghent, Belgium
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Aerts N, Le Goff D, Odorico M, Le Reste JY, Van Bogaert P, Peremans L, Musinguzi G, Van Royen P, Bastiaens H. Systematic review of international clinical guidelines for the promotion of physical activity for the primary prevention of cardiovascular diseases. BMC Fam Pract 2021; 22:97. [PMID: 34011279 PMCID: PMC8136198 DOI: 10.1186/s12875-021-01409-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 03/09/2021] [Indexed: 12/03/2022]
Abstract
BACKGROUND Cardiovascular diseases are the world's leading cause of morbidity and mortality. An active lifestyle is one of the cornerstones in the primary prevention of cardiovascular disease. An initial step in guiding primary prevention programs is to refer to clinical guidelines. We aimed to systematically review clinical practice guidelines on primary prevention of cardiovascular disease and their recommendations regarding physical activity. METHODS We systematically searched Trip Medical Database, PubMed and Guidelines International Network from January 2012 up to December 2020 using the following search strings: 'cardiovascular disease', 'prevention', combined with specific cardiovascular disease risk factors. The identified records were screened for relevance and content. We methodologically assessed the selected guidelines using the AGREE II tool. Recommendations were summarized using a consensus-developed extraction form. RESULTS After screening, 27 clinical practice guidelines were included, all of which were developed in Western countries and showed consistent rigor of development. Guidelines were consistent about the benefit of regular, moderate-intensity, aerobic physical activity. However, recommendations on strategies to achieve and sustain behavior change varied. Multicomponent interventions, comprising education, counseling and self-management support, are recommended to be delivered by various providers in primary health care or community settings. Guidelines advise to embed patient-centered care and behavioral change techniques in prevention programs. CONCLUSIONS Current clinical practice guidelines recommend similar PA lifestyle advice and propose various delivery models to be considered in the design of such interventions. Guidelines identify a gap in evidence on the implementation of these recommendations into practice.
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Affiliation(s)
- N. Aerts
- Department of Primary and Interdisciplinary Care, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - D. Le Goff
- Department of General Medicine, SPURBO, Université de Bretagne Occidentale, University of West Brittany, 7479 Brest, EA France
| | - M. Odorico
- Department of General Medicine, SPURBO, Université de Bretagne Occidentale, University of West Brittany, 7479 Brest, EA France
| | - J. Y. Le Reste
- Department of General Medicine, SPURBO, Université de Bretagne Occidentale, University of West Brittany, 7479 Brest, EA France
| | - P. Van Bogaert
- Department of Nursing and Midwifery, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerpen, Belgium
| | - L. Peremans
- Department of Primary and Interdisciplinary Care, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
- Department of Nursing and Midwifery, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerpen, Belgium
| | - G. Musinguzi
- Department of Primary and Interdisciplinary Care, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
- Department of Disease Control and Environmental Health, School of Public Health, College of Health Sciences, Makerere University, Kampala, Uganda
| | - P. Van Royen
- Department of Primary and Interdisciplinary Care, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - H. Bastiaens
- Department of Primary and Interdisciplinary Care, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
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Charton V, Frémondière F, Delion M, Van Bogaert P, Gignoux, Menei P, Dinomais M. Retrospective study among 25 children after intrathecal baclofen therapy implantation. Ann Phys Rehabil Med 2018. [DOI: 10.1016/j.rehab.2018.05.1315] [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: 10/28/2022]
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8
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Charton V, Frémondière F, Delion M, Van Bogaert P, Gignoux, Menei P, Dinomais M. Retrospective study among 25 children after intrathecal baclofen therapy implantation. Ann Phys Rehabil Med 2018. [DOI: 10.1016/j.rehab.2018.05.737] [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: 10/28/2022]
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9
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Van Bogaert P, Tolson D, Eerlingen R, Carvers D, Wouters K, Paque K, Timmermans O, Dilles T, Engelborghs S. SolCos model-based individual reminiscence for older adults with mild to moderate dementia in nursing homes: a randomized controlled intervention study. J Psychiatr Ment Health Nurs 2016; 23:568-575. [PMID: 27511740 DOI: 10.1111/jpm.12336] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/18/2016] [Indexed: 11/29/2022]
Abstract
UNLABELLED WHAT IS KNOWN ON THE SUBJECT?: To stimulate reminiscence of older adults with dementia performed individually or through group sessions is a well-known practice in nursing homes resulting in effects on behaviour and well-being as an alternative for medication. Robust scientific proof of the effectiveness of individual reminiscence therapy performed in nursing homes is sparse. WHAT THIS PAPER ADDS TO EXISTING KNOWLEDGE?: We have provided individual standardized reminiscence therapy to residents with dementia. The therapy was developed and tested in a previous study and performed in this study by trained nursing home volunteers. In comparison with a control group who received usual care, residents who received the reminiscence therapy showed significant less depressive symptoms. Moreover, residents were, in general, attentive, open and collaborative during the sessions and volunteers experienced the sessions as useful and pleasant. WHAT ARE THE IMPLICATIONS FOR PRACTICE?: Individual reminiscence therapy can be learned and used by nursing home volunteers to improve care in nursing homes. ABSTRACT Aim To investigate the effect of a standardized individualized intervention based on the SolCos transformational reminiscence model on depressive symptoms (primary outcome), cognition and behaviour (secondary outcomes) for older people with mild to moderate dementia, performed by trained nursing home volunteers as facilitators. Background Because of limited pharmacological treatment options for older adults with dementia relevant physical, sensory, psychological or social interventions offer alternative opportunities. Method Randomized controlled trial (ISRCTN74355073) was set up in two nursing homes with 29 and 31 residents in the intervention and the control groups respectively. Eighteen nursing home volunteers were trained to perform the reminiscence therapy. Various assessment scales were measured pre- and post-sessions. Results Linear regression analysis showed an impact on depressive symptoms. However, no impact was identified on cognition and behaviour. Facilitators experienced the sessions as useful and pleasant, and study participants were, in general, attentive, open and collaborative. Discussion Study results showed that organizing standardized individual reminiscence therapy with nursing home volunteers was feasible and study participants' attention and participation were overall good. Further study initiatives to explore the potential of individual reminiscence therapy within a person-centred framework are recommended in order to improve care in nursing homes.
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Affiliation(s)
- P Van Bogaert
- Division of Nursing and Midwifery Sciences, Faculty of Medicine and Health Sciences, Centre for Research and Innovation in Care (CRIC), University of Antwerp, Wilrijk, Belgium.,Department of Nursing, Antwerp University Hospital, Edegem, Belgium
| | - D Tolson
- Alzheimer Scotland Centre for Policy and Practice, University of the West of Scotland, Hamilton, UK
| | - R Eerlingen
- Division of Nursing and Midwifery Sciences, Faculty of Medicine and Health Sciences, Centre for Research and Innovation in Care (CRIC), University of Antwerp, Wilrijk, Belgium
| | - D Carvers
- Division of Nursing and Midwifery Sciences, Faculty of Medicine and Health Sciences, Centre for Research and Innovation in Care (CRIC), University of Antwerp, Wilrijk, Belgium
| | - K Wouters
- Department of Scientific Coordination, University Hospital Antwerp, Edegem, Belgium
| | - K Paque
- Division of Nursing and Midwifery Sciences, Faculty of Medicine and Health Sciences, Centre for Research and Innovation in Care (CRIC), University of Antwerp, Wilrijk, Belgium
| | - O Timmermans
- Division of Nursing and Midwifery Sciences, Faculty of Medicine and Health Sciences, Centre for Research and Innovation in Care (CRIC), University of Antwerp, Wilrijk, Belgium
| | - T Dilles
- Division of Nursing and Midwifery Sciences, Faculty of Medicine and Health Sciences, Centre for Research and Innovation in Care (CRIC), University of Antwerp, Wilrijk, Belgium
| | - S Engelborghs
- Laboratory of Neurochemistry and Behavior, Reference Center for Biological Markers of Dementia (BIODEM), Institute Born-Bunge, University of Antwerp, Wilrijk, Belgium.,Department of Neurology and Memory Clinic, Hospital Network Antwerp, Middelheim and Hoge Beuken, Antwerp, Belgium
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Rodesch G, Van Bogaert P, Szliwowski H, Baleriaux D, Brotchi J. Post-Embolisation Flow Disturbances at the Basilar Tip Triggering the Development of an Arterial Aneurysm. Interv Neuroradiol 2016; 4:247-51. [DOI: 10.1177/159101999800400309] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/1998] [Accepted: 06/20/1998] [Indexed: 11/15/2022] Open
Abstract
We present the case of an 11-year-old boy with a large intracerebral and intraventricular haemorrhage due to rupture of a left temporal arteriovenous malformation. The child initially presented with severe headaches and meningism, right VIth nerve palsy, right hemianopsia, and expressive aphasia. After stabilization of his neurological status, the patient was embolised in two sessions with acrylic glue (Histoacryl*), obliterating nearly 90% of the nidus, the residual to be considered for gamma-knife radiosurgery. The first session of embolisation had been complicated, during retrieval of the micro-catheter, by an erratic embolus of glue in the basilar artery. The child was kept for 24 hours under heparin anticoagulation in order to avoid any thrombosis, followed by aspirin. His neurological examination remained stable without worsening of his clinical condition. Further angiographic controls demonstrated the patency of the basilar artery itself with remodelling changes at the basilar tip, with preservation of the perforators in this region. Secondary dilatation of the basilar tip with development of an arterial aneurysm was noted three years after the accident, pointing to the importance of flow turbulence and vascular wall weakness in the development of an arterial aneurysm. The clinical follow-up of this patient is 3.5 years; his neurological status is stable with hemianopsia, mild dysphasia and memory difficulties. Further follow-up will be needed in order to determine the therapeutic requirement for the arterial aneurysm.
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Affiliation(s)
- G. Rodesch
- Clinique de Neuroradiologie, Hôpital Erasme; Bruxelles, Belgium
- Hôpital Bicětre, Neuroradiologie Vasculaire Interventionnelle, Hôpital Bicětre, Le Kremlin Bicětre, France
| | - P. Van Bogaert
- Clinique de Neuropédiatrie, Hôpital Erasme; Bruxelles, Belgium
| | - H. Szliwowski
- Clinique de Neuropédiatrie, Hôpital Erasme; Bruxelles, Belgium
| | - D. Baleriaux
- Clinique de Neuroradiologie, Hôpital Erasme; Bruxelles, Belgium
| | - J. Brotchi
- Service de Neurochirurgie, Hôpital Erasme; Bruxelles, Belgium
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Marty B, Bourguignon M, Op de Beeck M, Wens V, Goldman S, Van Bogaert P, Jousmäki V, De Tiège X. Effect of movement rate on corticokinematic coherence. Neurophysiol Clin 2015; 45:469-74. [DOI: 10.1016/j.neucli.2015.09.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Revised: 08/20/2015] [Accepted: 09/02/2015] [Indexed: 11/15/2022] Open
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Aeby A, Wermenbol V, Ciardelli R, Mûller MF, Wetzburger C, Van Bogaert P. [Systematic follow-up of infants born preterm]. Rev Med Brux 2015; 36:219-222. [PMID: 26591304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Advances in pediatric medicine have enabled a decrease in perinatal mortality, especially among infants born preterm (< 32 weeks gestational age) or low birth weight (< 1.500 g). However, this population is exposed to a greater risk of neurological sequelae. This is why the creation of specific follow-up program are mandatory to screen at-risk children to offer them a support able to minimize the impact of prematurity on their future neurological development.
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13
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Coppens S, Deconinck N, van Wijk R, Koralkova P, Bogaert PV, Aeby A. T.P.30. Neuromuscul Disord 2014. [DOI: 10.1016/j.nmd.2014.06.266] [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: 10/24/2022]
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14
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Van Bogaert P, Wouters K, Willems R, Mondelaers M, Clarke S. Work engagement supports nurse workforce stability and quality of care: nursing team-level analysis in psychiatric hospitals. J Psychiatr Ment Health Nurs 2013; 20:679-86. [PMID: 22962847 DOI: 10.1111/jpm.12004] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/16/2012] [Indexed: 11/28/2022]
Abstract
Research in healthcare settings reveals important links between work environment factors, burnout and organizational outcomes. Recently, research focuses on work engagement, the opposite (positive) pole from burnout. The current study investigated the relationship of nurse practice environment aspects and work engagement (vigour, dedication and absorption) to job outcomes and nurse-reported quality of care variables within teams using a multilevel design in psychiatric inpatient settings. Validated survey instruments were used in a cross-sectional design. Team-level analyses were performed with staff members (n = 357) from 32 clinical units in two psychiatric hospitals in Belgium. Favourable nurse practice environment aspects were associated with work engagement dimensions, and in turn work engagement was associated with job satisfaction, intention to stay in the profession and favourable nurse-reported quality of care variables. The strongest multivariate models suggested that dedication predicted positive job outcomes whereas nurse management predicted perceptions of quality of care. In addition, reports of quality of care by the interdisciplinary team were predicted by dedication, absorption, nurse-physician relations and nurse management. The study findings suggest that differences in vigour, dedication and absorption across teams associated with practice environment characteristics impact nurse job satisfaction, intention to stay and perceptions of quality of care.
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Affiliation(s)
- P Van Bogaert
- Division of Nursing and Midwifery Science, Antwerp University, Wilrijk, Belgium.
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Urbain C, Galer S, Van Bogaert P, Peigneux P. Pathophysiology of sleep-dependent memory consolidation processes in children. Int J Psychophysiol 2013; 89:273-83. [DOI: 10.1016/j.ijpsycho.2013.06.022] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2013] [Revised: 06/13/2013] [Accepted: 06/17/2013] [Indexed: 11/30/2022]
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De Meester K, Verspuy M, Monsieurs KG, Van Bogaert P. SBAR improves nurse-physician communication and reduces unexpected death: a pre and post intervention study. Resuscitation 2013; 84:1192-6. [PMID: 23537699 DOI: 10.1016/j.resuscitation.2013.03.016] [Citation(s) in RCA: 162] [Impact Index Per Article: 14.7] [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: 12/20/2012] [Revised: 03/08/2013] [Accepted: 03/17/2013] [Indexed: 10/27/2022]
Abstract
BACKGROUND The Joint Commission International Patient Safety Goal 2 states that effective communication between health care workers needs to improve. The aim of this study was to determine the effect of SBAR (situation, background, assessment, recommendation) on the incidence of serious adverse events (SAE's) in hospital wards. METHOD In 16 hospital wards nurses were trained to use SBAR to communicate with physicians in cases of deteriorating patients. A pre (July 2010 and April 2011) and post (June 2011 and March 2012) intervention study was performed. Patient records were checked for SBAR items up to 48 h before a SAE. A questionnaire was used to measure nurse-physician communication and collaboration. RESULTS During 37,239 admissions 207 SAE's occurred and were checked for SBAR items, 425 nurses were questioned. Post intervention all four SBAR elements were notated more frequently in patient records in case of a SAE (from 4% to 35%; p<0.001), total score on the questionnaire increased in nurses (from 58 (range 31-97) to 64 (range 25-97); p<0.001), the number of unplanned intensive care unit (ICU) admissions increased (from 13.1/1000 to 14.8/1000 admissions; relative risk ratio (RRR)=50%; 95% CI 30-64; p=0.001) and unexpected deaths decreased (from 0.99/1000 to 0.34/1000 admissions; RRR=-227%; 95% CI -793 to -20; NNT 1656; p<0.001). There was no difference in the number of cardiac arrest team calls. CONCLUSION After introducing SBAR we found increased perception of effective communication and collaboration in nurses, an increase in unplanned ICU admissions and a decrease in unexpected deaths.
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Affiliation(s)
- K De Meester
- Antwerp University Hospital, Wilrijkstraat 10, 2650 Edegem, Belgium.
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Van Bogaert P, Geurden B, Weeks SM. Transforming the hospital structure and organization from hierarchical and departmental to flat and interdisciplinary: effect on nurse job outcomes and nurse-assessed quality of care. INT J EVID-BASED HEA 2012. [DOI: 10.1097/01258363-201209000-00175] [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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18
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De Meester K, Das T, Hellemans K, Verbrugghe W, Jorens PG, Verpooten GA, Van Bogaert P. Impact of a standardized nurse observation protocol including MEWS after Intensive Care Unit discharge. Resuscitation 2012; 84:184-8. [PMID: 22796310 DOI: 10.1016/j.resuscitation.2012.06.017] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2012] [Revised: 06/08/2012] [Accepted: 06/20/2012] [Indexed: 11/25/2022]
Abstract
BACKGROUND Analysis of in-hospital mortality after serious adverse events (SAE's) in our hospital showed the need for more frequent observation in medical and surgical wards. We hypothesized that the incidence of SAE's could be decreased by introducing a standard nurse observation protocol. AIM To investigate the effect of a standard nurse observation protocol implementing the Modified Early Warning Score (MEWS) and a color graphic observation chart. METHODS Pre- and post-intervention study by analysis of patients records for a 5-day period after Intensive Care Unit (ICU) discharge to 14 medical and surgical wards before (n=530) and after (n=509) the intervention. RESULTS For the total study population the mean Patient Observation Frequency Per Nursing Shift (POFPNS) during the 5-day period after ICU discharge increased from .9993 (95% C.I. .9637-1.0350) in the pre-intervention period to 1.0732 (95% C.I. 1.0362-1.1101) (p=.005) in the post-intervention period. There was an increased risk of a SAE in patients with MEWS 4 or higher in the present nursing shift (HR 8.25; 95% C.I. 2.88-23.62) and the previous nursing shift (HR 12.83;95% C.I. 4.45-36.99). There was an absolute risk reduction for SAE's within 120h after ICU discharge of 2.2% (95% C.I. -0.4-4.67%) from 5.7% to 3.5%. CONCLUSION The intervention had a positive impact on the observation frequency. MEWS had a predictive value for SAE's in patients after ICU discharge. The drop in SAE's was substantial but did not reach statistical significance.
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Affiliation(s)
- K De Meester
- Antwerp University Hospital, Wilrijkstraat 10, 2650 Edegem, Belgium.
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19
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Liu Y, Aeby A, Balériaux D, David P, Absil J, De Maertelaer V, Van Bogaert P, Avni F, Metens T. White matter abnormalities are related to microstructural changes in preterm neonates at term-equivalent age: a diffusion tensor imaging and probabilistic tractography study. AJNR Am J Neuroradiol 2012; 33:839-45. [PMID: 22241389 DOI: 10.3174/ajnr.a2872] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Preterm infants have a high risk of brain injury and neurodevelopmental impairment, often associated with WMA on conventional MR imaging. DTI can provide insight into white matter microstructure. The aim of this study was to investigate the association between WMA on conventional MR imaging and DTI parameters in specific fibers in preterm neonates at term-equivalent age. MATERIALS AND METHODS Seventy preterm neonates (39 boys and 31 girls) were included in the study. WMA were classified as no, mild, moderate, or severe. Probabilistic tractography provided tract volumes, FA, MD, λ(//), and λ(⊥) in the CST, SLF, TRs, and corpus callosum. Data were compared by using MANOVA, and adjustment for multiple comparisons was performed. RESULTS Important associations were found between WMA and microstructural changes. Compared with neonates with no WMA (n = 41), those with mild WMA (n = 27) had significantly increased λ(⊥) and MD in the left ATR, the left sensory STR, the bilateral motor STR, and for λ(⊥) also in the right CST; FA decreased significantly in the left sensory STR. Diminished tract volumes and altered diffusion indices were also observed in the 2 neonates with moderate WMA. CONCLUSIONS Altered DTI indices in specific tracts, with λ(⊥) as most prominent, are associated with mild WMA in preterm neonates at term-equivalent age.
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Affiliation(s)
- Y Liu
- Departments of Radiology, ULB-Hôpital Erasme, Brussels, Belgium.
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20
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Liu Y, Metens T, Absil J, De Maertelaer V, Balériaux D, David P, Denolin V, Van Overmeire B, Avni F, Van Bogaert P, Aeby A. Gender differences in language and motor-related fibers in a population of healthy preterm neonates at term-equivalent age: a diffusion tensor and probabilistic tractography study. AJNR Am J Neuroradiol 2011; 32:2011-6. [PMID: 21940804 DOI: 10.3174/ajnr.a2690] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND AND PURPOSE Sex differences in white matter structure are controversial. In this MR imaging study, we aimed to investigate possible sex differences in language and motor-related tracts in healthy preterm neonates by using DTI and probabilistic tractography. MATERIALS AND METHODS Thirty-eight preterm neonates (19 boys and 19 girls, age-matched), healthy at term-equivalent age and at 12 months were included. TBV was measured individually. Probabilistic tractography provided tract volumes, relative tract volumes (volume normalized to TBV), FA, MD, and λ(⊥) in the SLF, in the TRs, and in the CSTs. Data were compared by using independent t tests, and Bonferroni corrections were performed to adjust for multiple comparisons. RESULTS We showed that healthy preterm boys had larger TBV than girls. However, girls had statistically significantly larger relative tract volumes than boys bilaterally in the parieto-temporal SLF, and in the left CST. Moreover, in the left parieto-temporal SLF, a trend toward lower MD and λ(⊥) was observed in females. CONCLUSIONS Structural sex differences were found in preterm neonates at term-equivalent age in both sides of the parieto-temporal SLF and in the left CST. Further studies are necessary to investigate whether these structural differences are related to later sex differences in language skills and handedness or to the effect of prematurity.
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Affiliation(s)
- Y Liu
- Department of Radiology, ULB-Hopital Erasme, Brussels, Belgium.
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21
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Massager N, De Tiège X, Legros B, Drogba L, Van Bogaert P, De Witte O. Apport de l’imagerie par source magnétique dans la détermination des zones d’implantation d’électrodes de SEEG en chirurgie de l’épilepsie. Neurochirurgie 2011. [DOI: 10.1016/j.neuchi.2011.09.080] [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: 11/28/2022]
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22
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Vilain C, Rens C, Aeby A, Balériaux D, Van Bogaert P, Remiche G, Smet J, Van Coster R, Abramowicz M, Pirson I. A novel NDUFV1 gene mutation in complex I deficiency in consanguineous siblings with brainstem lesions and Leigh syndrome. Clin Genet 2011; 82:264-70. [DOI: 10.1111/j.1399-0004.2011.01743.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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23
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De Tiege X, Goldman S, Van Bogaert P. Neuronal networks in children with continuous spikes and waves during slow sleep. Brain 2011; 134:e177. [DOI: 10.1093/brain/awq389] [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] [Indexed: 11/13/2022] Open
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24
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Van Bogaert P. [Attention deficit disorder in childhood]. Rev Med Brux 2009; 30:239-243. [PMID: 19899369] [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] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Attention deficit disorder, eventually associated with hyperactivity (ADD +/- H), is nowadays viewed as a syndrome often of unknown etiology but probably not unique, with important genetic influence and associated environmental factors. The cognitive model proposing ADHD as a result of impaired inhibitory control which makes the child less flexible to changing circumstances suffers from poor sensibility and specificity. As studies aimed to make genotype-phenotype correlations were disappointing, recent genetic researches tend to correlate the genotype to an endophenotype defined from neuro-imaging data with encouraging preliminary results. Treatment with methylphenidate has long been considered as a first choice for disabling forms of ADHD, but recent data do not show evidence for superiority of methylphenidate compared to non pharmacological approach at long-term. Evaluation and treatment of each suspected case of ADHD need to be tailored with special concern for associated conditions as psycho-affective troubles or learning difficulties.
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Affiliation(s)
- P Van Bogaert
- Clinique de Neurologie Pédiatrique, Hôpital Erasme, Bruxelles.
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25
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Aeby A, Liu Y, De Tiège X, Denolin V, David P, Balériaux D, Kavec M, Metens T, Van Bogaert P. Maturation of thalamic radiations between 34 and 41 weeks' gestation: a combined voxel-based study and probabilistic tractography with diffusion tensor imaging. AJNR Am J Neuroradiol 2009; 30:1780-6. [PMID: 19574497 DOI: 10.3174/ajnr.a1660] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE This study aimed to investigate brain maturation along gestational age with diffusion tensor imaging in healthy preterm and term neonates. Therefore, a voxel-based study of fractional anisotropy (FA) and mean diffusivity (D(av)) was performed to reveal the brain regions experiencing microstructural changes with age. With tractography, the authors intended to identify which fiber tracts were included in these significant voxels. MATERIALS AND METHODS There were 22 healthy preterm and 6 healthy term infants who underwent MR imaging between 34 and 41 weeks of gestation. A statistical parametric approach was used to evidence the effect of age on regional distribution of FA and D(av) values. The fiber tracts suspected to be included in the significant clusters of voxels were identified with neuroanatomy and tractography atlases, reconstructed with probabilistic tractography, and superimposed on the parametric maps. RESULTS Parametric analysis showed that FA increases with age in the subcortical projections from the frontal (motor and premotor areas) and parietal cortices, the centrum semiovale, the anterior and posterior arms of the internal capsules, the optic radiations, the corpus callosum, and the thalami (P < .05, corrected). Superimposition of the parametric maps on tractography showed that the corticospinal tract (CST); the callosal radiations (CR); and the superior, anterior, and posterior thalamic radiations were included in the significant voxels. No statistically significant results were found for D(av) maps. CONCLUSIONS These results highlight that, besides the already-evidenced FA increase in the CST and CR, the thalami and the thalamic radiations experience microstructural changes in the early development of the human brain.
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Affiliation(s)
- A Aeby
- Department of Pediatric Neurology, Université Libre de Bruxelles (ULB)-Hôpital Erasme, Brussels, Belgium.
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26
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De Tiège X, Op de Beeck M, Bourguignon M, Legros B, Carette E, Vonck K, Boon P, Baleriaux D, Goldman S, Van Bogaert P. Contribution of magnetic source imaging to the presurgical work-up of patients with refractory partial epilepsy. JBR-BTR 2008; 91:249-253. [PMID: 19202999] [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] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Magnetoencephalography (MEG) is a functional cerebral imaging technique that non-invasively records extracranial magnetic fields generated by the electrical activity of the brain. Magnetic source imaging (MSI) is a combination of MEG and coregistered magnetic resonance imaging (MRI) that is increasingly being used in the non-invasive presurgical evaluation of patients with refractory partial epilepsy to localize the magnetic correlate of interictal epileptiform discharges. This paper reviews the basics of MEG and MSI, briefly describes the characteristics of the MEG system installed at the ULB-Hôpital Erasme and then summarises the available data on the contribution of MSI to the presurgical work-up of refractory partial epilepsy.
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Affiliation(s)
- X De Tiège
- Laboratoire de Cartographie Fonctionnelle du Cerveau, ULB-Hôpital Erasme, Route de Lennik, 808, B-1070 Bruxelles, Belgium.
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27
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Levivier M, Wikler D, Massager N, Legros B, Van Bogaert P, Brotchi J. [Intraoperative MRI and epilepsy surgery]. Neurochirurgie 2008; 54:448-52. [PMID: 18462762 DOI: 10.1016/j.neuchi.2008.02.053] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2008] [Accepted: 02/26/2008] [Indexed: 11/26/2022]
Abstract
Intraoperative imaging, in particular intraoperative MRI, is a developing area in neurosurgery and its role is currently being evaluated. Its role in epilepsy surgery has not been defined yet and its use has been limited. In our experience with a compact and mobile low-field intraoperative MRI system, a few epilepsy surgeries have been performed using this technique. As the integration of imaging and functional data plays an important role in the planning of epilepsy surgery, intraoperative verification of the surgical result may be highly valuable. Therefore, teams that have access to intraoperative MRI should be encouraged to use this technique prospectively to evaluate its current relevance in epilepsy surgery.
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Affiliation(s)
- M Levivier
- Services de neurochirurgie, neurologie et neuropédiatrie, ULB-hôpital Erasme, Bruxelles, Belgique.
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28
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Aeby A, Sznajer Y, Cavé H, Rebuffat E, Van Coster R, Rigal O, Van Bogaert P. Cardiofaciocutaneous (CFC) syndrome associated with muscular coenzyme Q10 deficiency. J Inherit Metab Dis 2007; 30:827. [PMID: 17703371 DOI: 10.1007/s10545-007-0612-0] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2007] [Revised: 06/25/2007] [Accepted: 06/26/2007] [Indexed: 10/22/2022]
Abstract
The cardiofaciocutaneous (CFC) syndrome is characterized by congenital heart defect, developmental delay, peculiar facial appearance with bitemporal constriction, prominent forehead, downslanting palpebral fissures, curly sparse hair and abnormalities of the skin. CFC syndrome phenotypically overlaps with Noonan and Costello syndromes. Mutations of several genes (PTPN11, HRAS, KRAS, BRAF, MEK1 and MEK2), involved in the mitogen-activated protein kinase (MAPK) pathway, have been identified in CFC-Costello-Noonan patients. Coenzyme Q10 (CoQ10), a lipophilic molecule present in all cell membranes, functions as an electron carrier in the mitochondrial respiratory chain, where it transports electrons from complexes I and II to complex III. CoQ10 deficiency is a rare treatable mitochondrial disorder with various neurological (cerebellar ataxia, myopathy, epilepsy, mental retardation) and extraneurological (cardiomyopathy, nephropathy) signs that are responsive to CoQ10 supplementation. We report the case of a 4-year-old girl who presented a CFC syndrome, confirmed by the presence of a pathogenic R257Q BRAF gene mutation, together with a muscular CoQ10 deficiency. Her psychomotor development was severely impaired, hindered by muscular hypotonia and ataxia, both improving remarkably after CoQ10 treatment. This case suggests that there is a functional connection between the MAPK pathway and the mitochondria. This could be through the phosphorylation of a nuclear receptor essential for CoQ10 biosynthesis. Another hypothesis is that K-Ras, one of the proteins composing the MAPK pathway, might be recruited into the mitochondria to promote apoptosis. This case highlights that CoQ10 might contribute to the pathogenesis of CFC syndrome.
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Affiliation(s)
- A Aeby
- Department of Pediatric Neurology, Erasme Hospital, Free University of Brussels (ULB), 808 route de Lennik, 1070, Brussels, Belgium.
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29
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De Tiège X, Balériaux D, Van Bogaert P. Addendum: contribution of magnetoencephalography to presurgical work-up of pharmacoresistant epilepsy. JBR-BTR 2007; 90:247. [PMID: 17966237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Affiliation(s)
- X De Tiège
- Department of Pediatric Neurology, Universite Libre de Bruxelles, Hôpital Erasme, Brussels, Belgium.
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30
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Bruno MK, Lee HY, Auburger GWJ, Friedman A, Nielsen JE, Lang AE, Bertini E, Van Bogaert P, Averyanov Y, Hallett M, Gwinn-Hardy K, Sorenson B, Pandolfo M, Kwiecinski H, Servidei S, Fu YH, Ptácek L. Genotype-phenotype correlation of paroxysmal nonkinesigenic dyskinesia. Neurology 2007; 68:1782-9. [PMID: 17515540 DOI: 10.1212/01.wnl.0000262029.91552.e0] [Citation(s) in RCA: 119] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Paroxysmal nonkinesigenic dyskinesia (PNKD) is a rare disorder characterized by episodic hyperkinetic movement attacks. We have recently identified mutations in the MR-1 gene causing familial PNKD. METHODS We reviewed the clinical features of 14 kindreds with familial dyskinesia that was not clearly induced by movement or during sleep. Of these 14 kindreds, 8 had MR-1 mutations and 6 did not. RESULTS Patients with PNKD with MR-1 mutations had their attack onset in youth (infancy and early childhood). Typical attacks consisted of a mixture of chorea and dystonia in the limbs, face, and trunk, and typical attack duration lasted from 10 minutes to 1 hour. Caffeine, alcohol, and emotional stress were prominent precipitants. Attacks had a favorable response to benzodiazepines, such as clonazepam and diazepam. Attacks in families without MR-1 mutations were more variable in their age at onset, precipitants, clinical features, and response to medications. Several were induced by persistent exercise. CONCLUSIONS Paroxysmal nonkinesigenic dyskinesia (PNKD) should be strictly defined based on age at onset and ability to precipitate attacks with caffeine and alcohol. Patients with this clinical presentation (which is similar to the phenotype initially reported by Mount and Reback) are likely to harbor myofibrillogenesis regulator 1 (MR-1) gene mutations. Other "PNKD-like" families exist, but atypical features suggests that these subjects are clinically distinct from PNKD and do not have MR-1 mutations. Some may represent paroxysmal exertional dyskinesia.
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Affiliation(s)
- M K Bruno
- Department of Neurology, University of California, San Francisco, CA 94158, USA
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31
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Van Bogaert P, Aeby A, De Borchgrave V, De Cocq C, Deprez M, De Tiège X, de Tourtchaninoff M, Dubru JM, Foulon M, Ghariani S, Grisar T, Legros B, Ossemann M, Tugendhaft P, van Rijckevorsel K, Verheulpen D. The epileptic syndromes with continuous spikes and waves during slow sleep: definition and management guidelines. Acta Neurol Belg 2006; 106:52-60. [PMID: 16898254] [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: 05/11/2023]
Abstract
The authors propose to define the epileptic syndromes with continuous spikes and waves during slow sleep (CSWS) as a cognitive or behavioral impairment acquired during childhood, associated with a strong activation of the interictal epileptiform discharges during NREM sleep--whatever focal or generalized--and not related to another factor than the presence of CSWS. The type of syndrome will be defined according to the neurological and neuropsychological deficit. These syndromes have to be classified among the localization-related epileptic syndromes. Some cases are idiopathic and others are symptomatic. Guidelines for work-up and treatment are proposed.
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Affiliation(s)
- P Van Bogaert
- Department of Pediatric Neurology, ULB-Hôpital Erasme, Brussels, Belgium.
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32
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Goldman S, Pirotte B, Wikler D, Lubansu A, Aeby A, Van Bogaert P, David P, Brotchi J, Levivier M. Résection volumétrique de 22 tumeurs cérébrales pédiatriques de bas grade guidée par la tomographie à émission de positons (TEP) utilisant le traceur [11C]-méthionine. Neurochirurgie 2005. [DOI: 10.1016/s0028-3770(05)83560-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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Grisar T, Bottin P, de Borchgrave d'Alténa V, Brichart C, Delcourt C, Dubru JM, Foulon M, Ghariani S, Hotermans C, Legros B, Ossemann M, Sadzot B, Tugendhaft P, Van Bogaert P, van Rijckevorsel K, Verheulpen D. Prophylaxis of the epilepsies: should anti-epileptic drugs be used for preventing seizures after acute brain injury? Acta Neurol Belg 2005; 105:5-13. [PMID: 15861989] [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: 05/02/2023]
Abstract
In many circumstances antiepileptic drugs are used in patients who have never presented any clinical epileptic seizures. These substances are administered on the assumption of a potential risk for the patients of developing acute or delayed chronic seizures after brain injuries such as trauma, stroke, hemorrages or even neurosurgical interventions. The aim of this paper is to propose therapeutic guidelines for the management of this prophylactic attitude in epilepsy based on basic research and clinical practice in the French community in Belgium. We will distinguish between the prevention of acute (early onset-provoked) seizures and a delayed truly post-lesional (unprovoked) epilepsy. Some therapeutic goals can be achieved under the former circumstances whereas in the latter situation we all agree for the absence of any coherent antiepileptic prophylactic behaviour.
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Affiliation(s)
- T Grisar
- Université de Liège-Faculté de Médecine, CHU-Liège-Service de Neurologie, Secteur d'exploration des épilepsies, CNCM, Belgium.
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Jissendi Tchofo P, De Tiege X, Goldman S, Van Bogaert P, David PH, Pruvo JP, Soto Ares G. Supratentorial functional disturbances in two children with cerebellar cortical dysplasia. J Neuroradiol 2004; 31:399-405. [PMID: 15687960 DOI: 10.1016/s0150-9861(04)97024-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 11/29/2022]
Abstract
When evaluating children with mental retardation, subtle cerebral and cerebellar morphologic anomalies are often noted at Magnetic Resonance Imaging (MRI). Some, such as cerebellar cortical dysplasia (CCD), have been considered as subtle markers of cerebral dysgenesis. Their functional significance and their effect on brain function, remain unknown. To study supratentorial functional disturbances related to CCD we performed Positron-Emission-Tomography (PET) studies in two children with isolated CCD, in order to investigate the degree of involvement of supratentorial structures. One had developmental delay, motor disturbances and ataxia, and the other one only had mental retardation. PET studies revealed hypoperfusion and hypometabolism within the vermis, thalamus and the right striatum in one case, and hypometabolism in the basal ganglia and cerebellar deep grey nuclei in the other case. Our results could lead to a hypothesis explaining motor disturbances as well as cognitive impairment, and could suggest a pathological functional significance of CCD. Nevertheless, the relationship between these findings and mental retardation needs further investigation.
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De Tiège X, Goldman S, Laureys S, Verheulpen D, Chiron C, Wetzburger C, Paquier P, Chaigne D, Poznanski N, Jambaqué I, Hirsch E, Dulac O, Van Bogaert P. Regional cerebral glucose metabolism in epilepsies with continuous spikes and waves during sleep. Neurology 2004; 63:853-7. [PMID: 15365136 DOI: 10.1212/01.wnl.0000137015.04054.2c] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.1] [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: 11/15/2022] Open
Abstract
BACKGROUND Epileptic syndromes with continuous spikes and waves during sleep (CSWS) represent a wide spectrum of epileptic conditions associated with cognitive dysfunctions that have the EEG pattern of CSWS as a common feature. Reported are the results of voxel-based analyses of brain glucose metabolism performed in a group of 18 children with CSWS. METHODS Voxel-based analyses of cerebral glucose metabolism were performed using statistical parametric mapping (SPM). First, each patient was compared with a control group and the influence of age, epileptic activity, and corticosteroid treatment on metabolic abnormalities was studied. Also, disease-related changes in the contribution of a brain area to the level of metabolic activity in another brain area were investigated using pathophysiologic interactions in groups of patients compared with the control group. RESULTS Individual SPM analyses identified three metabolic patterns: association of hypermetabolic and hypometabolic areas, hypometabolic areas only, and normal pattern. Age and intensity of awake interictal spiking did not significantly differ in patients showing focal hypermetabolism compared with the other ones. Treatment with corticosteroids was associated with absence of focal hypermetabolism. In the group of patients with hypermetabolic areas, analyses of pathophysiologic interactions showed disease-related altered functional connectivity between the parietal and frontal cortices. CONCLUSIONS Cerebral metabolic patterns are heterogeneous among patients with CSWS. This metabolic heterogeneity could be related to the use of corticosteroid treatment before PET. The parietofrontal altered connectivity observed in patients with hypermetabolism is interpreted as a phenomenon of remote inhibition of the frontal lobes induced by highly epileptogenic and hypermetabolic posterior cortex.
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Affiliation(s)
- X De Tiège
- PET/Biomedical Cyclotron Unit, ULB-Hôpital Erasme, 808 route de Lennik, 1070 Brussels, Belgium.
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36
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Legros B, Bottin P, de Borchgrave V, Delcourt C, de Tourtchaninoff M, Dubru JM, Foulon M, Ghariani S, Grisar T, Hotermans C, Ossemann M, Sadzot B, Tugendhaft P, Van Bogaert P, van Rijckevorsel K, Verheulpen D. Therapeutic issues in women with epilepsy. Acta Neurol Belg 2003; 103:135-9. [PMID: 14626692] [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: 04/27/2023]
Abstract
Approximately 20% of people with epilepsy are of childbearing potential and about 3 to 5 births per thousand will be to women with epilepsy. Both epilepsy and antiepileptic drugs can cause specific problems in women and embryos (less than 8 weeks of gestational age) or foetuses (more than 8 weeks of gestational age). The aim of this paper is to discuss therapeutic issues for the management of women with epilepsy: initiation of antiepileptic therapy, contraception, pregnancy, breast feeding and menopause. Some fertility issues are also discussed.
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Affiliation(s)
- B Legros
- Hôpital Erasme-Service de neurologie, 808, route de Lennik, B-1070 Brussels, Belgium.
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37
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Aeby A, Guerrini R, David P, Rodesch G, Raybaud C, Van Bogaert P. Facial hemangioma and cerebral corticovascular dysplasia: a syndrome associated with epilepsy. Neurology 2003; 60:1030-2. [PMID: 12654977 DOI: 10.1212/01.wnl.0000052688.20517.7d] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [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: 11/15/2022] Open
Abstract
The authors performed imaging studies in two children with epilepsy and congenital facial hemangioma. The first patient had dysplastic pericallosal arteries and frontal polymicrogyria. In the second patient, dysplastic arteries and dysplastic cortex lined the interhemispheric fissure, the dysplastic cortex bridging across the midline, which resulted in holoprosencephaly. Abnormal cortical development may underlie epilepsy in children with facial hemangioma.
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Affiliation(s)
- A Aeby
- Departments of Pediatric Neurology, Université Libre de Bruxelles, Hôpital Erasme, Brussels, Belgium
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38
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Vilain C, Van Regemorter N, Verloes A, David P, Van Bogaert P. Neuroimaging fails to identify asymptomatic carriers of familial porencephaly. ACTA ACUST UNITED AC 2003; 112:198-202. [PMID: 12244556 DOI: 10.1002/ajmg.10452] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [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: 11/09/2022]
Abstract
Familial porencephaly is a rare condition usually transmitted as an autosomal dominant trait with incomplete penetrance. We describe a new family in which six members across four generations had congenital hemiplegia. Cerebral imaging was performed in three patients and showed porencephaly in all cases. In order to provide effective genetic counseling, three asymptomatic carriers were investigated by cerebral computerized tomography (three patients) and cerebral magnetic resonance imaging (one patient). These investigations failed to show any congenital abnormalities. We conclude that cerebral imaging is unreliable to detect obligate carriers of familial porencephaly.
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Affiliation(s)
- C Vilain
- Department of Medical Genetics, Hôpital Erasme, Université Libre de Bruxelles, Belgium
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39
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Hildebrand J, Van Bogaert P, Tugendhaft P, Thiriaux A. [Drug treatment of epilepsy: update]. Rev Med Brux 2002; 23:500-3. [PMID: 12584946] [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] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
Medical treatment of epilepsy has evolved during the last ten years. The "Epileptic Syndrome Classification" established in 1989 and new antiepileptic drugs account for these changes. This article recalls the principal rules of medical treatment of epilepsy and reviews new antiepileptic drugs available in Belgium.
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Affiliation(s)
- J Hildebrand
- Services de Neurologie et de, Hôpital Erasme, U.L.B
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40
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de Borchgrave V, Delvaux V, de Tourchaninoff M, Dubru JM, Ghariani S, Grisar T, Legros B, Ossemann M, Sadzot B, Tugendhaft P, Van Bogaert P, van Rijckevorsel K. Therapeutic strategies in the choice of antiepileptic drugs. Acta Neurol Belg 2002; 102:6-10. [PMID: 12094563] [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: 02/25/2023]
Abstract
The choice of treatment of newly diagnosed epilepsy involves many factors such as age, sex, life style, general health and concomitant medication. The seizure type, syndrome, and the pharmacology, efficacy and safety of the antiepileptic drugs (AEDs) should also be considered. Some of the new AEDs appear to provide at least equivalent efficacy with better tolerability. Some of these drugs have the potential to become drugs of first choice in newly diagnosed epilepsy. At the present time, we also must consider the criteria of reimbursement of these drugs. In this paper, we try to describe common and practical strategies to start a treatment of newly diagnosed epilepsy.
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Affiliation(s)
- V de Borchgrave
- Groupe de travail des Centres Francophones de Référence de l'Epilepsie Réfractaire
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41
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Pandolfo M, Blecic S, Mavroudakis N, Van Bogaert P, Paquier P, Manto M, Zegers de Beyl D. [The neurology department]. Rev Med Brux 2002; 23 Suppl 2:127-30. [PMID: 12584928] [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] [Subscribe] [Scholar Register] [Indexed: 04/20/2023]
Abstract
The department of neurology is devoted to the diagnosis and medical treatment of organic diseases of central nervous system (brain and spinal cord) and peripheral nervous system (peripheral nerves and muscles). Basic and clinical research in neuroscience constitute an essential activity of the department that defines its academic character. Over the years, the department of neurology has evolved from providing general neurology services to a multifaceted unit that has developed the several subspecialties of clinical neuroscience. Main research areas have included neurooncology, neurophysiology, neuropsychology, cerebrovascular diseases, childhood epilepsy and conditions affecting the psychomotor development of children. Neurogenetics is a recent addition to the areas of the interest of the department; research in neurogenetics includes basic investigations as well as clinical studies and focuses on inherited ataxias and genetic epilepsies.
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42
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Van Bogaert P, De Tiège X, Vanderwinden JM, Damhaut P, Schiffmann SN, Goldman S. Comparative study of hippocampal neuronal loss and in vivo binding of 5-HT1a receptors in the KA model of limbic epilepsy in the rat. Epilepsy Res 2001; 47:127-39. [PMID: 11673027 DOI: 10.1016/s0920-1211(01)00301-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
A high density of 5-HT1a receptors is present in pyramidal hippocampal cells. Mapping of these receptors may be performed in vivo using the tracer no-carrier-added 4-(18)F-fluoro-N-2-(1-(2-methoxyphenyl)-1-piperazinyl)ethyl-N-2-pyridinyl-benzamide (MPPF). We tested the hypothesis of a relationship between MPPF binding and post-epileptic neuronal loss in the hippocampus. The model of limbic epilepsy induced by kainic acid (KA) in the rat was used. Rats were sacrificed at various times (1 h-240 days) after systemic injection of 10 mg/kg KA. Determination of MPPF binding in the brain was combined with a quantification of neuronal loss using DNA labeling with propidium iodide and confocal microscopy. Hippocampal MPPF binding varied according to time elapsed from KA injection. An initial decrease from day 1 to day 6 post injection was followed by a relative increase between day 6 and day 30. This effect was observed in rats which showed hippocampal neuronal loss but also in one rat which did not. In KA treated rats, statistically significant relationship between MPPF binding and neuronal count was found during the acute period (rats sacrificed 1 h-day 6 after KA injection) and the chronic phase (rats sacrificed beyond day 60 after KA injection). The late relative increase of MPPF binding suggests an epilepsy-induced increase of 5-HT1a receptors in the hippocampus. This effect needs to be further characterized before considering PET determination of hippocampal MPPF binding as a method of post-epileptic neuronal loss assessment.
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Affiliation(s)
- P Van Bogaert
- PET/Biomedical Cyclotron Unit, Hôpital Erasme, Brussels, Belgium.
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43
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Guerreiro MM, Andermann E, Guerrini R, Dobyns WB, Kuzniecky R, Silver K, Van Bogaert P, Gillain C, David P, Ambrosetto G, Rosati A, Bartolomei F, Parmeggiani A, Paetau R, Salonen O, Ignatius J, Borgatti R, Zucca C, Bastos AC, Palmini A, Fernandes W, Montenegro MA, Cendes F, Andermann F. Familial perisylvian polymicrogyria: A new familial syndrome of cortical maldevelopment. Ann Neurol 2001. [DOI: 10.1002/1531-8249(200007)48:1<39::aid-ana7>3.0.co;2-x] [Citation(s) in RCA: 120] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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44
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Van Bogaert P, Massager N, Tugendhaft P, Wikler D, Damhaut P, Levivier M, Brotchi J, Goldman S. Statistical parametric mapping of regional glucose metabolism in mesial temporal lobe epilepsy. Neuroimage 2000; 12:129-38. [PMID: 10913319 DOI: 10.1006/nimg.2000.0606] [Citation(s) in RCA: 95] [Impact Index Per Article: 4.0] [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: 11/22/2022] Open
Abstract
We investigated statistical parametric mapping (SPM) use for positron emission tomography (PET) with [(18)F]fluorodeoxyglucose (FDG) data analysis in mesial temporal lobe epilepsy. The study involved 14 patients with temporal lobe epilepsy ultimately treated by anterior temporal lobectomy. Surgical outcome in terms of seizure control was favorable in 12 patients. Two different SPM approaches were designed to analyze each FDG-PET scan: a direct comparison with a control group (n = 27) and a search for significant interhemispheric asymmetry considering the asymmetry existing in the control group. Statistical inference was performed, first, without correction for multiple comparisons (making the hypothesis of temporal hypometabolism) and, second, after correction for multiple comparisons. Search for temporal interhemispheric asymmetry under the hypothesis of temporal hypometabolism was the most reliable SPM approach: hypometabolism was identified on the side chosen for resection in most cases (sensitivity, 71%; specificity, 100%) and was predictive of favorable postsurgical outcome in 90% of the patients. There was no false-positive result within the control group using this approach. After correction for multiple comparisons, SPM also identified in some patients temporal hypermetabolic areas as well as extratemporal cortical and subcortical hypometabolic areas on the side of resection but also on the contralateral side. In a further step, SPM was used for a group analysis of patients with favorable outcome after reversing scans when needed to set an identical lateralization in all patients. This analysis identified multiple ipsilateral temporal and extratemporal hypometabolic regions; when temporal metabolic changes were specifically assessed, the contralateral mesiotemporal region was found hypermetabolic, possibly as a manifestation of compensatory mechanisms in the presence of a unilateral epileptogenic lesion.
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Affiliation(s)
- P Van Bogaert
- PET-Biomedical Cyclotron Unit, Université Libre de Bruxelles, Brussels, Belgium
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45
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Guerreiro MM, Andermann E, Guerrini R, Dobyns WB, Kuzniecky R, Silver K, Van Bogaert P, Gillain C, David P, Ambrosetto G, Rosati A, Bartolomei F, Parmeggiani A, Paetau R, Salonen O, Ignatius J, Borgatti R, Zucca C, Bastos AC, Palmini A, Fernandes W, Montenegro MA, Cendes F, Andermann F. Familial perisylvian polymicrogyria: a new familial syndrome of cortical maldevelopment. Ann Neurol 2000; 48:39-48. [PMID: 10894214] [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: 02/17/2023]
Abstract
Two familial X-linked dominant syndromes of cortical maldevelopment have recently been described: double cortex/lissencephaly syndrome and bilateral periventricular nodular heterotopia. We report on 12 kindreds with familial perisylvian polymicrogyria (FPP) presenting at 10 centers, examine the clinical presentation in these familial cases, and propose a possible mode of inheritance. The clinical and radiological pattern was variable among the 42 patients, with clinical differences among the families and even within members of the same family. Pseudobulbar signs, cognitive deficits, epilepsy, and perisylvian abnormalities on imaging studies were not found in all patients. When present, they displayed a spectrum of severity. The only clear correlation in this study was between bilateral imaging findings and abnormal tongue movements and/or pronounced dysarthria. Most of the families provided evidence suggestive of, or compatible with, X-linked transmission. On the other hand, the pedigrees of 2 families ruled out X-linked inheritance. The most likely mode of inheritance for these 2 families was autosomal dominant with decreased penetrance; however, autosomal recessive inheritance with pseudodominance could not be ruled out in 1 family. We conclude that FPP appears to be genetically heterogeneous. However, most of the families probably represent a third previously undescribed X-linked syndrome of cortical maldevelopment.
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Affiliation(s)
- M M Guerreiro
- Department of Neurology and Neurosurgery, Montreal Neurological Institute and Hospital, McGill University, Quebec, Canada
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46
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Manto MU, Jacquy J, Van Bogaert P, Goldman S, Seeldrayers P. Rhythmic cortical and muscle discharges induced by fatigue in corticobasal degeneration. Clin Neurophysiol 2000; 111:496-503. [PMID: 10699413 DOI: 10.1016/s1388-2457(99)00262-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [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: 11/29/2022]
Abstract
We describe a patient presenting clinical features of corticobasal degeneration (CBD), including reflex myoclonus in the left upper limb. This patient complained of a marked worsening of involuntary movements in the left upper limb after exercise. We analysed the electrophysiological characteristics of myoclonus in the basal state and after a fatiguing exercise in the left upper limb. In the basal condition, single trials recording EEG showed a cortical complex occurring 20 ms after stimulation of the left median nerve. Surface EMG recordings of the left first dorsal interosseous (FDI) revealed an isolated biphasic C1 response 49 ms after stimulation. After exercise, single trials recording EEG following shocks to the left median nerve showed rhythmic complexes with a duration of approximately 80 ms. EEG complexes were made of a series of 3 bursts, with intervals between bursts tending to cluster at approximately 22 ms. These rhythmic complexes were associated with repetitive activity in the left FDI. We conclude that rhythmic cortical and muscle discharges can be induced by fatigue in CBD.
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Affiliation(s)
- M U Manto
- Service de Neurologie, Hôpital Erasme-ULB, 1070, Brussels, Belgium.
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47
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Denier C, Ducros A, Vahedi K, Joutel A, Thierry P, Ritz A, Castelnovo G, Deonna T, Gérard P, Devoize JL, Gayou A, Perrouty B, Soisson T, Autret A, Warter JM, Vighetto A, Van Bogaert P, Alamowitch S, Roullet E, Tournier-Lasserve E. High prevalence of CACNA1A truncations and broader clinical spectrum in episodic ataxia type 2. Neurology 1999; 52:1816-21. [PMID: 10371528 DOI: 10.1212/wnl.52.9.1816] [Citation(s) in RCA: 137] [Impact Index Per Article: 5.5] [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: 11/15/2022] Open
Abstract
OBJECTIVE To characterize the nature of CACNA1A mutations in episodic ataxia type 2 (EA2), to search for mutations in sporadic cases, and to delineate better the clinical spectrum. BACKGROUND EA2 is an autosomal dominant disorder characterized by recurrent acetazolamide-responsive attacks of cerebellar ataxia. The mutated gene, CACNA1A, located on chromosome 19, encodes the alpha1A subunit of a voltage-dependent calcium channel. So far, only three CACNA1A mutations have been identified-in two EA2 families and in one sporadic case. These three mutations disrupted the reading frame and led to truncated proteins. Interestingly, distinct types of CACNA1A mutations have been identified in familial hemiplegic migraine (missense mutations) and spinocerebellar ataxia type 6 (SCA-6) progressive cerebellar ataxia (expanded CAG repeats). However, except for SCA-6, these genotype-phenotype correlations relied on the analysis of very few families. METHODS To characterize CACNA1A mutations, eight familial and seven sporadic EA2 patients were selected. All 47 exons of CACNA1A were screened by a combination of single-strand conformer polymorphism and sequencing analysis. In addition, the length of the CAG repeat has been determined in all patients. RESULTS Seven new mutations were detected in four multiple case families and three sporadic cases. Six of them lead most likely to truncated or aberrant proteins. CAG repeat sizes were in the normal range. CONCLUSION These data clearly establish the specificity of EA2 mutations compared with SCA-6 and familial hemiplegic migraine. Detailed clinical analysis of the mutation carriers showed the highly variable penetrance and expression of this disorder: Several of the carriers did not show any clinical symptom; others displayed atypical or permanent neurologic symptoms (such as recurrent, transient diplopia or severe, permanent, and isolated cerebellar ataxia).
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Affiliation(s)
- C Denier
- INSERM U25, Faculté de Médecine Necker, Paris, France
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48
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Van Bogaert P. [Epilepsy and perinatal anoxia-ischemia]. Rev Med Brux 1999; 20:A172. [PMID: 10429544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Affiliation(s)
- P Van Bogaert
- Service de Neurologie Pédiatrique, Hôpital Erasme, U.L.B
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49
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Laureys S, Goldman S, Phillips C, Van Bogaert P, Aerts J, Luxen A, Franck G, Maquet P. Impaired effective cortical connectivity in vegetative state: preliminary investigation using PET. Neuroimage 1999; 9:377-82. [PMID: 10191166 DOI: 10.1006/nimg.1998.0414] [Citation(s) in RCA: 302] [Impact Index Per Article: 12.1] [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: 02/02/2023] Open
Abstract
Vegetative state (VS) is a condition of abolished awareness with persistence of arousal. Awareness is part of consciousness, which itself is thought to represent an emergent property of cerebral neural networks. Our hypothesis was that part of the neural correlate underlying VS is an altered connectivity, especially between the associative cortices. We assessed regional cerebral glucose metabolism (rCMRGlu) and effective cortical connectivity in four patients in VS by means of statistical parametric mapping and [18F]fluorodeoxyglucose-positron emission tomography. Our data showed a common pattern of impaired rCMRGlu in the prefrontal, premotor, and parietotemporal association areas and posterior cingulate cortex/precuneus in VS. In a next step, we demonstrated that in VS patients various prefrontal and premotor areas have in common that they are less tightly connected with the posterior cingulate cortex than in normal controls. These results provide a strong argument for an alteration of cortical connectivity in VS patients.
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Affiliation(s)
- S Laureys
- Department of Neurology, CHU Sart Tilman, University of Liège, Liège, 4000, Belgium
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50
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Van Bogaert P, David P, Gillain CA, Wikler D, Damhaut P, Scalais E, Nuttin C, Wetzburger C, Szliwowski HB, Metens T, Goldman S. Perisylvian dysgenesis. Clinical, EEG, MRI and glucose metabolism features in 10 patients. Brain 1998; 121 ( Pt 12):2229-38. [PMID: 9874476 DOI: 10.1093/brain/121.12.2229] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.7] [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: 11/12/2022] Open
Abstract
We studied 10 patients who had neurological disorders with a MRI-based diagnosis of perisylvian dysgenesis based on the fact that the parasagittal and centrifugal extremity of the sylvian fissure was abnormally mesial. This abnormality was bilateral in seven cases; in the other three patients, the contralateral sylvian fissure appeared either normal (two cases) or enlarged (open operculum). The perisylvian cortex had a polymicrogyric appearance in most patients. Potential aetiopathogenic factors were determined in four patients. In two of them, ischaemia at mid-gestation was ascribed to death of a co-twin in a context of monozygotic twinning. In the other two patients, who were siblings, genetic factors were suspected. Pseudobulbar palsy was found in eight patients and epilepsy in five patients. We used PET with [18F]fluorodeoxyglucose to test the hypothesis that, despite this clinical and MRI heterogeneity, regional cerebral glucose distribution could have common features in these patients. The analysis of PET data was performed by visual inspection in two cases and by using statistical parametric mapping (SPM) in eight patients compared with a control group. Segmented grey matter MRIs of seven out these patients were also analysed using SPM. We found that the abnormal perisylvian cortex had normal grey matter activity in eight patients and in the other two there was a heterogeneous pattern with areas of preserved metabolism and of decreased metabolism. Metabolic changes were also detected outside the polymicrogyric-like cortex; three patients had hypometabolic areas in cortical regions where the MRI appeared normal and had a normal intensity. When polymicrogyria extended into the white matter, this ectopic dysgenetic cortex was associated with a grey matter pattern within the white matter territory, and was detected by SPM as areas of PET hypermetabolism and MRI hyperintensity. In order to detect possible metabolic changes undetected by the individual analyses, the group of patients was compared with the control group. This comparison revealed bilateral hypometabolism in the frontal opercular cortex. We propose that these PET data be considered in light of the presumed cyto-architectonic pattern of perisylvian dysgenesis, i.e. polymicrogyria. In this malformation, two dense cell layers are separated by a necrotic sparse cell layer. We speculate that the amount of synaptic activity preserved in these dense cell layers depends on the importance and timing of the necrotic process; this hypothesis accounts for the large range of metabolic patterns found, from profoundly decreased glucose metabolism to nearly normal activity.
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Affiliation(s)
- P Van Bogaert
- Department of Pediatric Neurology, Hôpital Erasme, Université Libre de Bruxelles, Brussels, Belgium
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