Proton magnetic spectroscopy agreed better with magnetic resonance image to lateralization of epileptogenic zone than with surface electroencephalography.

Objective: To analyze the agreement rate of proton magnetic spectroscopy with magnetic resonance image (MRI) and surface electroencephalography (EEG) in extratemporal neocortical epilepsies.

Methods: A cross-sectional study, type series of cases included 33 patients, age range 13-59 years old, of both gender, presenting structural alteration identified by MRI (75.8%) or by neurophysiologic techniques (72.

Diagnostic methods for extra-temporal neocortical focal epilepsies: present and future.

The progress of epilepsies diagnosis has been great, but, amongst the diagnostic detailing that demand research, one of the most important is the essential lateralization and localization of epileptogenic zone, considered as the cerebral cortex region, that removed, will result in a free state of seizures. The present study aims to analyze the possible uses of proton spectroscopy for clinical and pre-surgical evaluation of focal extratemporal epilepsies, since this group presents the highest difficulty degree for lateralizing and locating epileptogenic zones. In almost all cases, a non invasive diagnosis can be performed using routine electroencephalography, video-electroencephalography - considered as gold standard, and magnetic resonance imaging.

[Sleep occipital positive transient spikes seen at EEG of epileptic patients submitted to sleep deprivation].

Objective: To compare the presence of "sleep occipital positive transient spikes" (SOPTS) in the electroencephalogram (EEG) of epileptic patients without sleep deprivation (SD) to those with SD, as an activation method.

Method: The author analyzed 40 EEG of 20 epileptic patients, aging from 12 to 43 years, 60%, males. Those patients were attempted at the Clinics Hospital of Universidade Federal de Pernambuco, from 1995 to 2000.

[Clinical and etiological considerations about the symptomatic epileptic syndromes with occipital paroxism blocked when the eyes open].

The syndrome of idiopathic partial epilepsy with occipital paroxysms in the EEG shows a considerable clinical heterogeneity. The present paper investigated the significance of electrophysiologic and clinical characteristics in eight patients with occipital paroxysms blocked by the eye opening. All patients were submitted to radiological exams including brain MRI and/or CT.