ABSTRACT
Introducción: Con la experiencia de los registros electroencefalográficos invasivos y el fracaso quirúrgico después de la cirugía, se ha hecho evidente que la epilepsia del lóbulo temporal es mucho más compleja de lo que se creía, y en la actualidad es considerada una enfermedad de redes anatomofuncionales y no de lesiones estructurales. Contenido: La información neurofisiológica e imagenológica actual permite concluir que en esta epilepsia están involucradas varias redes neuronales temporales y extratemporales que contribuyen a la extensión de la zona epileptógena. Una forma de entender el concepto de red epiléptica en la epilepsia del lóbulo temporal es a partir del conocimiento de la corteza piriforme. Varios estudios clínicos han mostrado que en pacientes con epilepsia del lóbulo temporal asociada a esclerosis hipocampal existe una disfunción interictal del procesamiento olfatorio que es más significativa, en comparación con pacientes con epilepsia focal extrahipocampal y controles sanos. Esta alteración es, probablemente, la consecuencia de una red neuronal disfuncional que se extiende más allá del hipocampo y que afecta a otras estructuras cercanas, incluida la corteza piriforme. Conclusión: En este artículo llevamos a cabo una revisión narrativa de la literatura con el objetivo de establecer un vínculo entre la corteza piriforme y la epileptogénesis del lóbulo temporal, y demostramos que esta enfermedad es la consecuencia de una disfunción de redes neuronales que no depende exclusivamente de una anormalidad estructural en el hipocampo o en estructuras cercanas.
Introduction: With the experience of invasive EEG recordings and surgical failure after surgery, it has become clear that temporal lobe epilepsy is much more complex than previously thought, and currently, is conceptualized as a disease of anatomical networks instead of structural lesions. Content: The current neurophysiological and imaging information allows us to conclude that several temporal and extratemporal anatomical networks are involved in this type of epilepsy. One way of understanding the concept of the epileptic network in temporal lobe epilepsy is from the knowledge of the piriform cortex. Several clinical studies have shown that in patients with temporal lobe epilepsy associated with hippocampal sclerosis exists an interictal dysfunction of olfactory processing that is more significant compared to patients with focal extra-hippocampal epilepsy and healthy controls. This alteration is probably the consequence of a dysfunctional neural network that extends beyond the hippocampus and affects other nearby structures, including the piriform cortex. Conclusion: In this article, we carry out a narrative review of the literature with the aim of establishing a link between the piriform cortex and temporal lobe epileptogenesis, demonstrating that this disease is the consequence of a dysfunctional network that does not depend exclusively of a hippocampal structural abnormality.
Subject(s)
Smell , Temporal Lobe , Piriform Cortex , Hippocampus , Epilepsies, PartialABSTRACT
Resumen La facomatosis pigmentovascular es un síndrome congénito muy poco frecuente, caracterizado por la presentación simultánea de una malformación vascular capilar y una lesión cutánea pigmentaria, con o sin compromiso extracutáneo. Se presenta el caso de una adolescente con epilepsia que cursa con crisis mioclónicas focales no controladas por un tratamiento farmacológico irregular, y que muestra además lesiones cutáneas compatibles con nevus flammeus y melanosis dérmica, ocular y palatina, presentes desde el nacimiento. Se trata del primer reporte en el país, de un síndrome neurocutáneo poco frecuente y de su asociación clínica con epilepsia, resaltándose además la importancia de una evaluación integral de esta entidad.
Summary Phacomatosis pigmentovascularis is a rare congenital syndrome, characterized by the simultaneous presentation of a capillary vascular malformation and a cutaneous pigmentary lesion, without or with extracutaneous involvement. The case of an adolescent with epilepsy characterized by focal myoclonic seizures uncontrolled by an irregular pharmacological treatment, with skin lesions compatible with nevus flammeus and dermal, ocular and palatal melanosis since birth, is presented. This is the first report in the country of an infrequent neurocutaneous syndrome and its clinical association with epilepsy, highlighting besides the importance of a comprehensive evaluation of this entity.
ABSTRACT
RESUMEN INTRODUCCIÓN: Según el modelo de actividad modular encapsulada del foco epiléptico (FE), las epilepsias del lóbulo temporal (ELI) y del frontal (ELF) se asocian con alteraciones cognitivas de memoria, atención, lenguaje y función ejecutiva. Por eso la mayoría de los protocolos neuropsicológicos se centran en la evaluación de estas funciones. Las habilidades viso-perceptuales se evaluarían en los pacientes con epilepsias del cuadrante posterior (ECP). OBJETIVO: Establecer las alteraciones viso-perceptuales en pacientes adultos con síndrome electro-clínico compatible con ELT y ELF de Medellín, Colombia, al compararse con un grupo de personas sin epilepsia. Pacientes y métodos: la muestra estuvo conformada por 19 pacientes, 10 (52,6 %) mujeres, edad de 43,0±12,3 (IC 95 %:37,1-48,9) años, con síndromes electro-clínicos por video-telemetría compatibles con ELT o ELF, con capacidad intelectual total estimada 107,2±14,1 (IC95 %:100,3-114,0). Se compararon con 16 personas sin epilepsia, 9(56,2 %) mujeres, edad 41,8±12,7 (IC95 %:35,1-48,6) y capacidad intelectual de 117±17,5 (IC95 %:108,6-127,2). Se les aplicó un protocolo para evaluación de procesos viso-perceptuales. RESULTADOS: Los pacientes presentaron un rendimiento significativamente inferior (p<0,05) en discriminación de figura-fondo, orientación viso-espacial de líneas y en el reconocimiento diferido de la memoria visual de puntos. Estas dificultades fueron mayores en los pacientes con ELF. CONCLUSIONES: Se observan alteraciones en ejecuciones viso-perceptuales y de almacenamiento de memoria visual más severas en pacientes con ELF. Esto apoya el modelo de redes complejas (no modulares y no encapsuladas), tanto para la actividad epiléptica como para la cognitiva. Por esto, los procesos viso-perceptuales deben ser evaluados en los pacientes con síndromes de ELT o ELF.
SUMMARY INTRODUCTION: According to modular encapsulated activity model of the epileptic focus (EF), Temporal lobe epilepsies (TLE) and Frontal lobe epilepsies (FLE) are associated to memory, attention, language and executive function impairments. For this reason most of the neuropsychological protocols are focused in the assessment of these functions. Visuoperceptual skills only would be assessed in patients with posterior quadrant epilepsies (PQE). OBJECTIVE: To establish visuoperceptual impairment in a sample of electro-clinical syndromes compatibles with TLE and FLE from Medellín-Colombia, compared with a group of healthy people without epilepsy. Patients and methods: sample was constituted by 19 patients, 10 women (52,6%), aged 43,0±12,3 (CI95%:37,1-48,9), with electro-clinical syndromes compatible with TLE or FLE, median estimated IQ 107,2±14,1 (CI95%:100,3-114,0). They were compared with 16 healthy people without epilepsy, 9(56,2%) women, median age 41,8±12,7 (CI95%:35,1-48,6) and 117±17,5 (IC95%:108,6-127,2). A visuoperceptual protocol was administered to both groups. RESULTS: Patients presented significant lower (p<0,05) on figure-background discrimination, visuospatial line orientations, and delayed recall by recognition of dots visual memory. These impairments were significant worst in FLE patients. CONCLUSIONS: TLE and FLE patients have visuoperceptual and delayed visual memory store impairments, which were significant worst in FLE patients. These findings support the complex network (non-modular and non-encapsulated) model to explain EF and cognitive functioning in patient with TLE and FLE. Visuoper-ceptual processes should be always assessed in these patients.
Subject(s)
Visual Perception , Epilepsy, Frontal Lobe , Epilepsies, Partial , Epilepsy, Temporal LobeABSTRACT
RESUMEN La estimulación del nervio vago es una técnica aprobada por la FDA, para epilepsia focal refractaria. Presentamos un caso de un paciente, con epilepsia de probable origen frontal, el cual cumplió criterios para epilepsia refractaria, y fue llevado a implantación de estimulador del nervio vago, quedando libre de crisis.
SUMMARY Vagal nerve stimulation is an FDA-approved technique for focal refractory epilepsy. We present the case of a patient, with epilepsy of probable frontal origin, who met criteria for refractory epilepsy, and was taken to implantation of vagus nerve stimulator, currently free of crisis.
Subject(s)
Epilepsies, Partial , Vagus Nerve Stimulation , Drug Resistant EpilepsyABSTRACT
Objetivos: Reportar la experiencia en cirugía resectiva en una serie de pacientes adultos con epilepsia focal lesional tratados en un hospital del Seguro Social del Perú. Material y Métodos: Se revisó la información registrada en la Unidad de Epilepsia de Adultos del Hospital Rebagliati, en Lima, desde enero del 2012 hasta octubre del 2016, sobre características clínicas, electrográficas, de neuroimagen y quirúrgicas de todos los pacientes con epilepsia focal lesional farmacorresistente, en los cuales se efectuó cirugía resectiva de epilepsia. La eficacia del procedimiento fue valorada mediante la Escala de Engel. Resultados: Se describen los resultados de cinco pacientes,proveyéndose información pertinente respecto a historia de la enfermedad, diagnósticos precisos, procedimientos quirúrgicos, seguimiento y complicaciones neurológicas y psiquiátricas. Conclusiones: La cirugía de epilepsia resectiva, basada en un trabajo multidisciplinario es reportada por primera vez en esta pequeña serie, demuestra ser eficaz y segura en adultos con epilepsia refractaria tratados en el Seguro Social del Perú.
Objectives:To report the experience of resective surgery in a series of adult patients with lesional focal epilepsy seen in a hospital of Peru's Social Security system. Material and Methods: Data of the Adult Epilepsy Unit at Rebagliati Hospital in Lima, from January 2012 to October 2016 were reviewed. Information was obtained about clinical, electrographic, neuroimaging and surgical procedures of all patients with refractory lesional focal epilepsy, in whom resective epilepsy surgery was performed. Efficacy was evaluated using the Engel scale. Results: Analytic data of five patients with pertinent details regarding clinical history, diagnostic work-up, surgical procedures, follow-up and neurological and psychiatric complications, are presented and discussed. Conclusions: Resective epilepsy surgery, based on a multidisciplinary work and reported in this small first sample appears to be effective and safe in adults with refractory epilepsy seen in a Social Security facility from Peru.
ABSTRACT
INTRODUCCIÓN. El objetivo de este trabajo fue determinar los factores pronósticos de recurrencia de las crisis epilépticas focales a los 2 años del diagnóstico y del inicio del tratamiento. MÉTODOS. Este estudio observacional, analítico y prospectivo incluyó a 207 niños que presentaron dos o más crisis epilépticas focales no provocadas, hospitalizados en el Departamento de Neuropediatría del Hospital William Soler, entre diciembre de 2001 y diciembre de 2003. Al final de los 2 años de seguimiento, 185 pacientes concluyeron el estudio. RESULTADOS. El 33,5 por ciento de los pacientes presentó recurrencias de las crisis epilépticas focales al finalizar el estudio. Constituyeron factores de riesgo de recurrencia de las crisis epilépticas focales los siguientes: edad menor de un año, etiología sintomática, presencia de antecedentes personales de crisis neonatales sintomáticas y discapacidades neurológicas y la persistencia de descargas en el electroencefalograma (EEG) evolutivo. El análisis de regresión logística demostró como variables pronósticas de recurrencia la etiología sintomática (p = 0,000; OR = 3,107), el antecedente personal de crisis neonatales sintomáticas (p = 0,037; OR = 4,623) y la persistencia de descargas en el EEG evolutivo (p = 0,000; OR = 2,109). CONCLUSIONES. El antecedente personal de crisis neonatales sintomáticas constituyó el factor independiente con mayor influencia en las recurrencias de las crisis epilépticas focales
INTRODUCTION: The objective of present paper was to determine the recurrent prognostic factors of focal epileptic crises at 2 years of diagnosis and of treatment onset. METHODS: This prospective, analytical and observational study included 207 children presenting two or more non-provoked epileptic crises, admitted in Neuropediatrics Department of William Soler Hospital between December, 2001 and December, 2003. At a two years follow-up, 185 patients concluded the study. RESULTS: The 33,5 percent of patients had recurrences of focal epileptic crises at the end of the year. Recurrent risk factors of crises above mentioned included: aged under 1 year, symptomatic etiology, presence of personal backgrounds of symptomatic neonatal crises and neurologic disabilities and persistence of the evolutionary electroenphalogram discharges. The logistic regression analysis showed as prognostic variables of symptomatic etiology recurrence (p = 0,000; OR = 3, 107), the persona background of symptomatic neonatal crises (p = 0,037; OR = 4,623) and the discharges persistence in the evolutionary electroencephalogram (p = 0,000; OR = 2,109). CONCLUSIONS: The personal background of symptomatic neonatal crises was the independent factor with a higher influence on recurrent focal epileptic crises
Subject(s)
Humans , Male , Adolescent , Female , Infant, Newborn , Infant , Child, Preschool , Child , Electroencephalography , Epilepsies, Partial/diagnosis , Risk Factors , Analytical Epidemiology , Observational Studies as Topic , Prognosis , Prospective Studies , RecurrenceABSTRACT
Las epilepsias focales son las màs frecuentes en los niños, y la resistencia al tratamiento farmacológico puede estar presente hasta en el 30 por ciento de los pacientes. Se realizó este estudio con el objetivo de dirigir la atención hacia la coincidencia topográfica de los paroxismos electroencefalográficos, con lesiones estructurales demostrables por neuroimagen, para facilitar el diseño de estrategias terapéuticas futuras. MÉTODOS. Se realizó un estudio descriptivo, longitudinal prospectivo, con 44 niños con diagnóstico de epilepsia focal de difícil control, ingresados en el Servicio de Neuropediatría del Hospital Pediátrico Docente Juan M Márquez, entre enero de 2003 y junio de 2007. Se realizaron estudios por electroencefalograma (EEG) al ingreso y videoelectroencefalograma, además de estudios de neuroimagen por tomografía axial o resonancia magnética nuclear. RESULTADOS. Los paroxismos en EEG involucraron el lóbulo frontal hasta en el 68 por ciento de los pacientes. En el 48 por ciento de los pacientes, los paroxismos electroencefalográficos coinciden con zonas de alteración estructural según neuroimagen, más frecuentes en el lóbulo frontal. En el 25 por ciento no hay coincidencia topográfica y en el 27 por ciento no se precisan alteraciones estructurales. CONCLUSIONES. En las epilepsias focales de difícil control se debe prestar especial atención a las zonas elocuentes con coincidencia entre el EEG y la neuroimagen, para evaluar de forma temprana las alternativas quirúrgicas de tratamiento.
Focal epilepsies are the more frequent conditions in children and a pharmacologic treatment resistance could be present up to 30 percent of patients. Aim of present paper was to direct the attention to topographic coincidence of electroencephalographic paroxysms with structural lesions by neuroimaging facilitating the future therapeutical strategies design. METHODS: A descriptive, longitudinal, prospective study was conducted in 44 children diagnosed with epilepsy of difficult control admitted in Neuropediatrics Service of Juan Manuel Marquez Teaching Children Hospital from January, 2003 to June, 2007. At admission, we made electroencephalogram (EEG) and videoelectroencephalogram (VEEG) studies as well as neuroimaging studies by axial tomography (AT) or nuclear magnetic resonance (NMR). RESULTS: Paroxysms in EEG involved frontal lobule up to the 68 percent of patients. In 48 percent, electroencephalographic paroxysms coincide with structural alteration zones according neuroimaging, more frequent in frontal lobule. In 25 percent there is not topographic coincidence, and in 27 percent there are not specified structural alterations. CONCLUSIONS: In focal epilepsies of difficult control, we must to take care of eloquent zones with coincident between EEG and neuroimaging to assess in time the surgical treatment options.
Subject(s)
Humans , Child , Electroencephalography/methods , Epilepsies, Partial/diagnosis , Magnetic Resonance Spectroscopy/methods , Frontal Lobe/abnormalities , Malformations of Cortical Development/diagnosis , Tomography/methodsABSTRACT
As epilepsias parciais constituem a forma mais comum de epilepsia nos indivíduos adultos. As drogas antiepilépticas (DAEs) permanecem como a principal forma de tratamento para os pacientes com epilepsia. Apesar da importância da medicação um número elevado de pacientes permanece sob um regime terapêutico inapropriado ou até mesmo sem qualquer medicação. Existem várias medicações disponíveis para o tratamento das epilepsias. A escolha de uma medicação específica ou a associação entre DAEs deve ser particularizada o máximo possível. Neste artigo revisamos alguns aspectos como classificação, início das crises, idade, sexo, comorbidades, custo e posologia das DAEs e história medicamentosa com a perspectiva de auxiliar nesta individualização do tratamento. Algumas características das principais DAEs disponíveis também são discutidas. Estes aspectos podem auxiliar na criação de um perfil ajudando assim na escolha do regime terapêutico mais apropriado para cada indivíduo. Aspectos práticos como o manuseio dos efeitos adversos, monoterapia e politerapia também são abordados.
Partial epilepsies are the most common form of epilepsy in adult individuals. Antiepileptic drugs (AEDs) continue as the main form of treatment for patients with epilepsy. Regardless of the importance of the medication a high number of patients are under inappropriate or not receiving AEDs. There are several medications available for the treatment of epilepsy. The choice of a particular medication or association among AEDs may be individualized as much as possible. In this article some aspects such as classification, onset of the seizures, age, sex, associated medical conditions, cost and posology of AEDs and medical drug history are reviewed. Details of the available AEDs are also discussed. These points may help to create a profile helping the decision for the appropriate AED. Some practical issues like adverse reaction management, monotherapy and politherapy are also discussed.
Subject(s)
Humans , Epilepsies, Partial , Epilepsy/drug therapy , AnticonvulsantsABSTRACT
Se presenta el caso clínico de un paciente de 20 años con epilepsia focal sintomática de larga evolución con poco control de sus crisis por tratamiento médico irregular. Las imágenes de resonancia magnética evidenciaron lesión multiquística principalmente del lóbulo temporal izquierdo. Se tomó biopsia estereotáxica cerebral de la lesión; la histolopatología mostró un componente glioneural en una matriz mucinosa, y por tanto, se hizo el diagnóstico de tumor disembrioplástico neuroepitelial. El paciente logra control de las crisis con ácido valproico y carbamazepina, mejora su estado funcional, aunque persiste el déficit cognitivo previo. No se realizó resección quirúrgica por ser una lesión benigna muy extensa y por el adecuado control de las crisis con el tratamiento médico. Debe sugerirse siempre el diagnóstico de tumor disembrioplástico neuroepitelial, ante cualquier tumor glial, en un paciente con larga historia de crisis focales, que inicien antes de los 20 años, sin déficit neurológico y que la resonancia magnética cerebral muestre una lesión cortical microquística, localizada principalmente en lóbulo temporal.
The case of a 20 year old boy, with long-lasting focal symptomatic epilepsy and a poor control of his seizures, because of irregular adherence to the neurological treatment, is presented. Brain MRI showed a multi-cystic lesion, located mainly in the temporal lobe. A brain stereotaxic biopsy was performed, finding a specific neural gliosis in a mucin-like matrix. The diagnosis of dysembryoplastic neuroepithelial tumor was done. Patient had a good control of his seizures with valproic acid and carbamazepine. Patient improved his functional state; however his previous cognitive deficit remains unchanged. Surgical resection was not developed because the lesion is considered as very benign and because the control of his seizures. The diagnosis of dysembryoplastic neuroepithelial tumor should be kept in mind in a patient with a long history of focal seizures; mainly when seizures onset begin before 20 years old, without motor or sensory neurological deficit, and when the MRI shows a cortical multi-cystic lesion, without mass effect, located in the temporal lobe.
Subject(s)
Humans , Epilepsy, Temporal Lobe , Epilepsies, Partial , NeurologyABSTRACT
Benign childhood epilepsy with centro-temporal spikes (BECTS) is a form of epilepsy with no demonstrable anatomical lesion showing spontaneous seizure remission. During the active phase of the disease the children may show cognitive deficits. The objective of this study was to assess, in children with BECTS, the relationship between clinical-EEG aspects and performance in the school performance test (SPT), Raven's progressive matrixes test and the Wechsler Intelligence Scale for Children (WISC-III). Forty-two 7 to 11 year old children were included and the following tests carried out: anamnesis, neurological examination, electroencephalogram (EEG), SPT, Raven's test and WISC-III. The children with BECTS had normal IQ values but showed inferior performance in the SPT more frequently than "healthy" children, paired with respect to age and maternal scholastic level. There was moderate positive correlation between WISC-III results and the age when the seizures started and the educational level of the parents. On the other hand, aspects linked to the epileptic nature of BECTS, such as the number of seizures, time since last seizure and the number and lateralization of the centro-temporal spikes on the EEG, showed no correlation with the neuropsychological tests.
A epilepsia benigna da infância com pontas centrotemporais (EBICT) é uma forma de epilepsia na qual não existem lesões anatômicas demonstráveis e há remissão espontânea das crises. Na fase ativa da epilepsia as crianças podem apresentar déficits cognitivos. O objetivo deste estudo foi avaliar, em crianças com EBICT, a relação entre aspectos clínico-eletrencefalográficos e o desempenho no teste de desempenho escolar (TDE), no teste das matrizes progressivas de Raven e na Escala Wechsler de Inteligência para Crianças (WISC-III). Foram incluídas 42 crianças de 7 a 11 anos de idade. Foram realizados: anamnese, exame neurológico, eletrencefalograma (EEG), TDE, teste de Raven e WISC-III. As crianças com EBICT tiveram valores normais de QI e apresentaram desempenho inferior no TDE mais freqüentemente que crianças "sadias" pareadas quanto à idade e à escolaridade materna. Houve correlação positiva moderada entre idade de início das crises e escolaridade dos pais com resultados do WISC-III. Por outro lado, aspectos ligados à natureza epiléptica da EBICT como número de crises, tempo decorrido da última crise, número e lateralidade das pontas centrotemporais ao EEG não mostraram correlação com os resultados dos testes neuropsicológicos.
Subject(s)
Child , Female , Humans , Male , Cognition Disorders/psychology , Epilepsy, Rolandic/psychology , Underachievement , Wechsler Scales , Age of Onset , Chi-Square Distribution , Cognition Disorders/diagnosis , Cognition Disorders/physiopathology , Educational Status , Electroencephalography , Epilepsy, Rolandic/physiopathology , Functional Laterality , Neuropsychological Tests , Psychomotor Performance/physiology , Reading , Remission, Spontaneous , Time FactorsABSTRACT
A maioria das pessoas com epilepsia tem epilepsia auto-limitada e/ou bom controle com drogas antiepilépticas (DAE), mas 20-30% delas continuam a ter crises, grande parte com epilepsia focal. A discriminar, os casos de eventos não epilépticos ou com inadequação terapêutica. A farmacorresistência precose é forte fator prognóstico negativo. As suas causas podem ser: 1.morte e reorganização celular (ex: esclerose hipocampal); 2. no nível molecular, redução da sensibilidade / alteração de receptores ou canal de voltagem de íons; 3. superexpressão de transportadores de múltidrogas (bombas de efluxo de drogas) que têm como protótipo a P-glicoproteína. O estado atual terapêutico avançou em : 1.DAE eficazes, mas ainda com refratariedade com doses máximas toleradas; 2.cirurgia com ressecção ou transecção subpial múltipla (ressecção cirúrgica ainda com os inconvenientes em alguns casos: inacessibilidade, proximidade de áreas eloqüentes e focos múltiplos, além da não disponibilidade usual). Como medidas terapêuticas alternativas atuais, existem: 1.a radiocirurgia, com a "gamma-knife" em casos selecionados, especialmente em epilepsia secundária à malformação vascular, hamartoma hipotalâmico e esclerose mesial temporal; 2.estimulação do sistema nervoso, no momento, aprovada apenas a estimulação vagal, sendo que estão em curso ensaios clínicos da estimulação núcleo talâmico anterior e a estimulação magnética transcraniana repetitiva de baixa freqüência como terapêuticas associadas; 3. a dieta cetogênica é prática antiga, altamente revivida. Para aplicação clínica futura, ainda em etapas preliminares de experimentação em animais, são propostas: 1. liberação focal de DAE diretamente em regiões envolvidas nas crises epilépticas (foco epileptogênico, zona de gatilho ou vias de propagação); 2.transplantes para reposição de perda neuronal, remodelagem de circuitos neuronais disfuncionais (reparo hipocampal, p. ex.) e defeitos de neurotransmissores...
Most of the people with epilepsy have auto-limited seizures, and / or good antiepileptic drugs (AED) control. Although, 20-30% of them keep on presenting the problem, great part, with focal epilepsy. The non epileptic events or therapeutic inadequacy must be excluded. The precocious farmacorresistence is a remarkable negative prognostic factor. Their causes can be: 1.cell death and reorganization (mainly, hippocampal sclerosis); 2.at the molecular level, reduction of the sensitivity / alteration of receptors or voltage-gated ion channels; 3. multidrug transporters superexpression (efflux drug bombs) that have as prototype the P-glicoprotein. The current therapeutic state improved: 1.efficatious AED, but still with refractoriness with tolerated maximum doses; 2.resective surgery or multiple subpial transections (surgical resection still with the inconvenience in some cases: inaccessibility, proximity of eloquent areas and multiple focuces, besides not usual availability). As measures of alternative therapeutics, exist: 1. gamma-knife radiosurgery in selected cases, especially in vascular malformation, hypothalamic hamartoma, and temporal mesial sclerosis secondary to epilepsy; 2. nervous system stimulation, but, at the moment, the only approved is the vagal, and it is carried out clinical trials, as associated therapeutics, stimulation of the thalamic anterior nucleus, besides that of the transcranian magnetic repetitive of low frequency; 3. the ketogenic diet is old practice, now retaken. For future clinical application, still in preliminary stages of experimentation in animals, they are proposed: 1. focal liberation of AED directly in areas involved in seizures (epileptogenic focus, trigger area or propagation pathways); 2. grafts for replacement of neuronal loss, dysfunctional neuronal circuit (hippocampus repair, for instance), and neurotransmitters defects (by noradrenergic, cholinergic, serotoninergic or GABAergic modification)...
Subject(s)
Humans , Anticonvulsants/therapeutic use , Drug Resistance , Epilepsy/surgery , Epilepsy/drug therapy , Neurons/transplantation , Radiosurgery , Stem Cell Transplantation , Electric StimulationABSTRACT
Para conocer la influencia de los trastornos de conducta sobre los resultados escolares de niños epilépticos se estudiaron 30 niños con más de 1 año de evolución de la enfermedad y que asistían a escuelas de enseñaza primarias. En entrevistas a padres y maestros se recogió valoración sobre su conducta y los resultados académicos del último curso escolar y se realizó un test de concentración de la atención. Se halló que el 70 % refiere algún trastorno de conducta. Se observó una relación significativa entre los resultados escolares M y la hiperactividad (p < 0,05), las dificultades en la concentración (p < 0,025) y la distracción (p < 0,01). Se concluye en que los trastornos de conducta tienen una influencia negativa sobre los resultados escolares del niño epiléptico.
To know the influence of the behaviour disorders on the school results of the epileptic children, 30 of them with more than a year of evaluation and who attend primary school were studied. Information about their behavior and academic results was gathered by the interviews made to their parents and teachers. A test was conducted to check the concentration of attention. It was found that 70 % had some behavior disorder. A significant relation was observed among the bad marks and hyperactivity (p < 0.05), the difficulties in the concentration (p < 0.025), and the distraction (p < 0.01). It is concluded that the behavior disorders exert a negative influence on the academic results of the epileptic child.