Assuntos
Infarto Cerebral/complicações , Transtornos de Deglutição/etiologia , Mutismo/etiologia , Infarto Cerebral/diagnóstico , Infarto Cerebral/fisiopatologia , Transtornos de Deglutição/fisiopatologia , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Mutismo/fisiopatologia , SíndromeRESUMO
To understand further relationships of the interictal electroencephalogram to the aura in complex partial seizures (CPS), we studied the interictal EEG and aura in 144 patients with CPS. The ages of the patients studied ranged from 31 to 80 years (average 52.44 years). The duration of seizures ranged from 1 to 60 years (average 15.69 years). Seventy patients (49%) reported auras which were classified according to the guidelines recommended by the Commission of the International League Against Epilepsy. Statistical analysis revealed no relationship between presence, laterality, or localization of EEG abnormality and the number or type of aura. The results emphasize that more factors than electrophysiologic localization alone participate in the determination of aura in CPS. Our data support the position that aura has, at most, a limited relationship to lateralization or localization of interictal cerebral dysfunction in CPS.
Assuntos
Eletroencefalografia , Epilepsia do Lobo Temporal/fisiopatologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Análise de Variância , Encéfalo/fisiopatologia , Lateralidade Funcional , Humanos , Pessoa de Meia-Idade , Estudos RetrospectivosRESUMO
We report a case of FIRDA associated with a pial-dural arteriovenous malformation (AVM). The patient presented with headaches, papilledema and partial oculomotor nerve palsy. CT scan had failed to discover the AVM. After partial embolization of the AVM, the patient's symptoms and signs resolved, and the FIRDA disappeared. FIRDA has been thought to be caused by frontal lobe ischemia or periventricular edema. It has not been reported in benign intracranial hypertension (BIH). We postulate that the FIRDA in this case was due to the circulatory "steal" effect of the AVM, and not to the intracranial hypertension. Five percent of patients with dural AVM's present with a picture consistent with BIH. We recommend a diligent search for additional pathology if FIRDA is seen in association with presumed BIH.
Assuntos
Dura-Máter/irrigação sanguínea , Eletroencefalografia , Malformações Arteriovenosas Intracranianas/diagnóstico , Pia-Máter/irrigação sanguínea , Angiografia Cerebral , Ritmo Delta , Embolização Terapêutica , Humanos , Malformações Arteriovenosas Intracranianas/terapia , Masculino , Pessoa de Meia-Idade , Pseudotumor Cerebral/diagnóstico , Tomografia Computadorizada por Raios XRESUMO
Periodic, lateralized, epileptiform discharges (PLEDs) in the electroencephalogram have been reported in association with a variety of structural lesions of the brain. Although a great deal of attention has been directed to the neuropathological basis of PLEDs, little emphasis has been placed on the functional basis of this EEG syndrome. In this paper, we reported a patient with multiple systemic problems whose EEG showed PLEDs. However, radiological and pathological studies revealed no neuropathological basis for the occurrence of this EEG syndrome. Thus, we presented evidence that metabolic factors may play a part in the pathogenesis of PLEDs.
