Ai Yamaguchi

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Cortical potentials preceding voluntary sequential extension of the right middle finger followed by the index finger were compared with those preceding voluntary simultaneous extension of the two fingers in 7 right-handed subjects who were trained to make the total duration of the EMG discharges approximately the same between the two movements. The negative(More)
To investigate the influence of ketamine on the bispectral index (BIS), the spectral edge frequency 90 (SEF 90) and relative power in four frequency bands (beta, alpha, theta, sigma), we studied 13 patients (ASA I-II) undergoing elective surgery. In the first study (n = 7), we administered ketamine (1.0, bolus, i.v.) during propofol anesthesia.(More)
BACKGROUND Nonketotic hyperglycemia often causes seizures. Recently, seizures associated with nonketotic hyperglycemia have been found to be associated with subcortical T2 hypointensity on magnetic resonance imaging, especially in the occipital lobes. However, the mechanism remains unclear, although iron accumulation is suggested. We present a case of(More)
We compared the effects of three oral hypnotics, monosodium trichloroethyl phosphate (MTP), chloral hydrate (CH), and pentobarbital calcium (PTB), to those of non-medication on wake-sleep states and sleep activation of epileptic seizure discharges. The subjects consisted of 410 epileptics and 171 non-epileptic outpatients (mean age: 12.5 years) of the(More)
A study was conducted to analyze how tooth extraction procedure would affect patient's physical equilibrium sensation, using the positional centric equilibrium measuring device. Forty-five health subjects, between the ages of 20 to 30, with no systemic nor equilibrium abnormalities were selected for this study. The results obtained were as follows. 1. No(More)
The lower limits of the "therapeutic range" for serum levels of sodium valproate (VPA) were evaluated in epileptic children showing a benign clinical course. Twenty-five outpatients, aged 5 to 16 years, whose seizures were well controlled over three years with VPA alone, were studied. Venous blood was taken 1.1 to 5 hrs after the morning dose. Serum VPA(More)
The bioavailability of a film-coated tablet of valproate (VPA) in nonfasting volunteers was studied. Ten healthy adults received a single 200 mg (mean 3.55 mg/kg) film-coated tablet, 15 minutes after breakfast. Venous blood was then taken at regular intervals of up to 4 or 7 hours after the dosage, and the serum VPA concentrations were determined by means(More)
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