Ce travail rapporte les effets electroencephalographiques (EEG) du gammahydroxybutyrate de sodium... more Ce travail rapporte les effets electroencephalographiques (EEG) du gammahydroxybutyrate de sodium (G-OH) chez 27 enfants âges de 5 jours a 15 ans, pendant la phase d'induction anesthesique. L'enregistrement est debute avec l'induction. L'aspect semiologique des modifications EEG des enfants de plus de 2 ans est sensiblement la meme que chez l'adulte alors que, chez l'enfant plus jeune, on note un passage plus rapide du trace initial a la phase des activites delta lentes polymorphes
Topics in Environmental Physiology and Medicine, 1982
It has long been known that hypoxia and arteriolar structural changes were the main factors in al... more It has long been known that hypoxia and arteriolar structural changes were the main factors in altitude pulmonary hypertension. However, other environmental factors such as cold may play a contributing role.
Orthostatic tremor is an unusual kind of potentially disabiling tremor appearing immediately when... more Orthostatic tremor is an unusual kind of potentially disabiling tremor appearing immediately when standing. Clinical examination is normal in primary form except for wide base standing and unsteadiness which disappear when walking. Arm tremor resembling essential tremor is found present in one third of cases. Electrophysiological exploration is necessary for diagnosis and shows a regular rapid tremor (frequency around 16 Hz). We present 10 new cases, 3 men and 7 women, 37 to 74 years old. Unsteadiness when standing was the predominant complaint in 9 cases, the other first described pains in the lower limbs. All had visible or palpable tremor predominant in thighs. Four patients had postural arm tremor, one had neurogen syndrome in the lower limbs corresponding to toxic polyneuropathy which developed after tremor. Electromyographic study found high frequency (13-17.3 Hz) rhythmic discharge in weight-bearing muscles. Orthostatic tremor cannot be considered as a clinical variant of pos...
Twenty-six years after a total right hemispherectomy for tumor when thirteen years old, a right-h... more Twenty-six years after a total right hemispherectomy for tumor when thirteen years old, a right-handed patient presented with disturbances of equilibrium, urinary incontinence, and a marked reduction in motor impulses, in spite of a subnormal intelligence quotient (0.85). Computed tomography examinations suggested the presence of a normal pressure hydrocephalus. However intracranial pressure monitoring and isotopic and cerebrospinal fluid perfusion tests showed the absence of any cerebral obstruction, and free communication between the cerebral and spinal spaces, though intracranial volume capacity accommodation was greatly reduced. Clinical examination demonstrated good quality sensory appreciation by the left half of the body, the possibility of detecting an object in the visual hemifield supposedly blind, and perfect location of a sound source. Somesthetic evoked potentials were studied by stimulating the median nerve in the left and right wrist regions. Left hemisphere evoked po...
We describe the use of a transcervical-transclival approach in the treatment of an ascending luxa... more We describe the use of a transcervical-transclival approach in the treatment of an ascending luxation of the odontoid by rheumatoid arthritis. We favor this approach and use of methylmethacrylate in this rare condition. Other applications of this route which gives access to the craniocervical junction are discussed.
Ce travail rapporte les effets electroencephalographiques (EEG) du gammahydroxybutyrate de sodium... more Ce travail rapporte les effets electroencephalographiques (EEG) du gammahydroxybutyrate de sodium (G-OH) chez 27 enfants âges de 5 jours a 15 ans, pendant la phase d'induction anesthesique. L'enregistrement est debute avec l'induction. L'aspect semiologique des modifications EEG des enfants de plus de 2 ans est sensiblement la meme que chez l'adulte alors que, chez l'enfant plus jeune, on note un passage plus rapide du trace initial a la phase des activites delta lentes polymorphes
Topics in Environmental Physiology and Medicine, 1982
It has long been known that hypoxia and arteriolar structural changes were the main factors in al... more It has long been known that hypoxia and arteriolar structural changes were the main factors in altitude pulmonary hypertension. However, other environmental factors such as cold may play a contributing role.
Orthostatic tremor is an unusual kind of potentially disabiling tremor appearing immediately when... more Orthostatic tremor is an unusual kind of potentially disabiling tremor appearing immediately when standing. Clinical examination is normal in primary form except for wide base standing and unsteadiness which disappear when walking. Arm tremor resembling essential tremor is found present in one third of cases. Electrophysiological exploration is necessary for diagnosis and shows a regular rapid tremor (frequency around 16 Hz). We present 10 new cases, 3 men and 7 women, 37 to 74 years old. Unsteadiness when standing was the predominant complaint in 9 cases, the other first described pains in the lower limbs. All had visible or palpable tremor predominant in thighs. Four patients had postural arm tremor, one had neurogen syndrome in the lower limbs corresponding to toxic polyneuropathy which developed after tremor. Electromyographic study found high frequency (13-17.3 Hz) rhythmic discharge in weight-bearing muscles. Orthostatic tremor cannot be considered as a clinical variant of pos...
Twenty-six years after a total right hemispherectomy for tumor when thirteen years old, a right-h... more Twenty-six years after a total right hemispherectomy for tumor when thirteen years old, a right-handed patient presented with disturbances of equilibrium, urinary incontinence, and a marked reduction in motor impulses, in spite of a subnormal intelligence quotient (0.85). Computed tomography examinations suggested the presence of a normal pressure hydrocephalus. However intracranial pressure monitoring and isotopic and cerebrospinal fluid perfusion tests showed the absence of any cerebral obstruction, and free communication between the cerebral and spinal spaces, though intracranial volume capacity accommodation was greatly reduced. Clinical examination demonstrated good quality sensory appreciation by the left half of the body, the possibility of detecting an object in the visual hemifield supposedly blind, and perfect location of a sound source. Somesthetic evoked potentials were studied by stimulating the median nerve in the left and right wrist regions. Left hemisphere evoked po...
We describe the use of a transcervical-transclival approach in the treatment of an ascending luxa... more We describe the use of a transcervical-transclival approach in the treatment of an ascending luxation of the odontoid by rheumatoid arthritis. We favor this approach and use of methylmethacrylate in this rare condition. Other applications of this route which gives access to the craniocervical junction are discussed.
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