Flávia Sayuri Matsuo

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We evaluated the efficacy and safety of lamotrigine (300 and 500 mg/day) as add-on therapy in a multicenter, randomized, double-blind, parallel-group, placebo-controlled study of 216 patients with refractory partial seizures. During 6 months of treatment, median seizure frequency decreased by 8% with placebo, 20% with 300 mg lamotrigine, and 36% with 500 mg(More)
A series of observations were made on a normal subject, a subject with a non-metallic prosthesis and one with unilateral facial paralysis in order to demonstrate the role of the eyelid in the production of the electrical potential seen during blinking. The findings support the hypothesis that moving the eyelid over the positively charged cornea of an intact(More)
We postulate that palatal myoclonus after infarction of the brainstem or cerebellum, or both, is the manifestation of denervation supersensitivity secondary to lesions involving the dentatorubroolivary system. Two cases of our own and 31 from the English and French literature were analyzed in order to determine the delay between the occurrence of presumed(More)
OBJECTIVE To investigate some of the reasons why magnetoencephalographic (MEG) spikes are at times not apparent in conventional electroencephalograms (EEG) when the data are co-registered, and to explore to what extent modern EEG analysis methods can improve the yield. METHODS Seventy seconds of MEG-EEG co-registration on a 122 channel Neuromag system(More)
The incidences of spikes and paroxysmal rhythmic events (PREs) in 10-h overnight EEGs of normal adult volunteers (n=135) were studied at 11 sites with a computer-assisted ambulatory EEG monitoring system with automatic spike and PRE detection. Spikes were evident in the overnight EEG of 1 subject (0.7%), and PREs were apparent in the overnight EEG of the(More)
3 patients suffered from partial epileptic seizures beginning in truncal muscles on one side. A gross anatomical lesion was demonstrated in the contralateral parietal area in 2. In the third patient, both interictal and ictal EEG features were consistent with an epileptogenic lesion in the similar location. Several factors seem to contribute to the rarity(More)
An atypical form of herpes simplex encephalitis produced by HSV-1 documented in the present article demonstrates that (1) prominent EEG abnormality may correlate with subtle increase in signal intensity on MRI; (2) the disease may start with prominent involvement of the cingulate gyri; and (3) viral infection of the brainstem may cause early onset of severe(More)
Aided by computerized voltage topographic display, conventional time-series EEG display methods were expanded. Representations of both negative and positive ends of an equivalent current dipole can be localized in EEG sampled over the head surface. Intuitive EEG analysis can be applied to source localization in three dimensions of scalp focal epileptiform(More)