RESUMO
Our aim was to investigate whether patients with epileptiform foci in the frontal lobe, as revealed by video EEG (VEEG) analysis, exhibit non-forced grasping behaviour and manipulatory movements during seizures. We retrospectively reviewed ictal videotapes of 30 consecutive patients with frontal and 30 with temporal lobe epilepsy undergoing VEEG for the presence and type of grasping and manipulatory movements. Four of the 30 patients with frontal lobe epilepsy (13%) showed unilateral grasping behaviour, three of whom had whole hand prehension (one with manipulation movements as well) and one pinching movements. In all patients, arm abduction and elevation resembling reaching invariably preceded grasping hand movements. The epileptogenic focus was located in the contralateral and ipsilateral frontocentral region in two and one patient, respectively, and in the ipsilateral orbitofrontal region in another. However, none of the patients with temporal lobe epilepsy showed grasping behaviour. Patients with frontal lobe epilepsy may show non-forced grasping with or without manipulatory finger movements as part of ictal phenomena.
Assuntos
Epilepsia do Lobo Frontal/fisiopatologia , Força da Mão , Mãos/fisiopatologia , Atividade Motora , Adolescente , Adulto , Eletroencefalografia , Epilepsia do Lobo Frontal/diagnóstico , Epilepsia do Lobo Temporal/diagnóstico , Epilepsia do Lobo Temporal/fisiopatologia , Feminino , Humanos , Masculino , Tempo de Reação , Estudos Retrospectivos , Gravação de VideoteipeRESUMO
Las infecciones por Mycoplasma pneumoniae presentan complicaciones del sistema nervioso de distinto tipo, que si bien son infrecuentes pueden ser graves; habitualmente tienen evolución favorable pero pueden dejar secuelas permanentes. Se presenta una paciente adulta joven con una meningoencefalitis aguda que no dejó secuelas como complicación de una infección respiratoria baja. El diagnóstico se efectuó por detección de anticuerpos específicos.
Assuntos
Adulto , Humanos , Feminino , Meningoencefalite/patologia , Mycoplasma pneumoniae/isolamento & purificação , Pneumonia por Mycoplasma/patologia , Doença Aguda , Eletroencefalografia , Herpes Simples/classificação , Imageamento por Ressonância Magnética , Meningoencefalite/classificação , Meningoencefalite/microbiologia , Reação em Cadeia da Polimerase , Pneumonia por Mycoplasma/classificação , Pneumonia por Mycoplasma/complicaçõesRESUMO
A wide variety of CNS lesions have been associated with changes in heart rate (HR). However, in epileptic patients their value to lateralize seizure onset remains controversial. This study aims to assess if HR changes associated with partial onset seizures could be useful in lateralizing seizure onset. We analysed HR changes on 100 seizures from 38 consecutive patients (mean age: 27.5 years) admitted for video-EEG telemetry monitoring. We evaluated the R-R interval 30 seconds before the seizure onset and 10, 20 and 120 seconds after the onset. We assessed whether there was a correlation between HR changes and seizure type, left/right differences and different semiological components for each seizure. We recorded 100 seizures. Three non-lateralized seizures were excluded from the analysis; 63/97 (65%) had left hemisphere onset, mainly from the temporal lobe (57.7%). The mean baseline HR was 77 beats per minute Ictal tachycardia (HR: > or = 107.06 beats per minute) was detected in 32 seizures, with ictal onset from the mesial temporal lobe structures in 23/32; 16/32 occurred during the first 10 seconds and 16/32 during the next 20 seconds from the seizure onset independently of the site of origin. Among the different semiological components for each seizure, only dystonic posturing and automatism correlated with HR increments. We did not find bradycardia in our series. Ictal tachycardia occurs most frequently with seizures arising from the mesial temporal lobe and it may not reliably predict the lateralization of seizure onset.
Assuntos
Eletroencefalografia , Epilepsia/diagnóstico , Taquicardia/fisiopatologia , Lobo Temporal/fisiopatologia , Adolescente , Adulto , Criança , Pré-Escolar , Diagnóstico Diferencial , Dominância Cerebral , Epilepsia/fisiopatologia , Epilepsia do Lobo Temporal/diagnóstico , Feminino , Frequência Cardíaca , Humanos , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos TestesRESUMO
Status epilepticus (SE) represents a medical emergency that annually affects 60,000--150,000 individuals in the United States. Selective neuronal loss in vulnerable areas has been pathologically demonstrated following convulsive SE primarily affecting the limbic system, thalamus and cerebellum. Morbidity in those cases that follow refractory SE (RSE) is poorly documented. There have been anecdotal reports of surgical treatment for this condition, especially secondary to brain lesions. We report a 6-year-old patient who was in RSE for 60 days, without a brain lesion documented by MRI. The patient underwent multiple subpial transection (MST) of the sensorimotor cortex, which by ictal EEG and ictal SPECT proved to be the epileptogenic zone. We conclude that MST should be considered as an alternative treatment for refractory partial SE.
Assuntos
Córtex Motor/cirurgia , Estado Epiléptico/cirurgia , Criança , Eletrocardiografia/métodos , Eletroencefalografia , Humanos , Imageamento por Ressonância Magnética , Masculino , Monitorização Intraoperatória/métodos , Córtex Motor/patologia , Pia-Máter/cirurgia , Estado Epiléptico/diagnóstico , Tomografia Computadorizada de Emissão de Fóton ÚnicoRESUMO
Se presentan siete casos de tuberculoma intracraneano asistidos entre 1979 y 1981. Seis casos eran supratentoriales y el otro pontino. Todos tenían signos neurológicos focales. Cinco casos tuvieron convulsiones parciales y uno generalizadas. Había antecedentes de tuberculosis en cinco pero era activa solamente en tres. Cuatro casos fueron intervenidos con la presunción de tumor cerebral, pero el estudio biópsico demostró granulomas con caseificación en los cuatro y bacilos ácido-alcohol resistentes en uno. Un paciente falleció con diagnóstico de meningoencefalitis tuberculosa, la necropsia evidenció un tuberculoma pontino. Los dos casos restantes se recuperaron con tratamiento tuberculostático. Se enfatiza: 1) la importancia de considerar el diagnóstico de tuberculoma cerebral ante cada caso de masa intracraneana, con o sin antecedentes de patología pulmonar; 2) la importancia del estudio tomográfico contrastado, para llegar al diagnóstico siempre que se relacione al mismo con el cuadro clínico, que no suele ser de rápida evolutividad, pudiendo inclusive ser estático o regresivo, y 3) la escasa utilidad práctica de los restantes medios complementarios de diagnóstico