منابع مشابه
Cerebrospinal fluid pressure.
The cerebrospinal fluid pressure at the foramen of Monro in man in the recumbent position is less than 100 mm water relative to atmospheric pressure. The oscillations in the pressure wave due to respiration and cardiac pulsation vary with the actual pressure and increase as the overall pressure rises. In man lying horizontally the oscillation at the foramen of Monro is usually less than 50 mm w...
متن کاملCerebrospinal Fluid Pressure and Glaucoma
Eyes with normal-pressure glaucoma and those with high-pressure glaucoma can show a similar optic nerve head appearance, while eyes with vascular optic neuropathies show a markedly different optic disc appearance. Factors in addition to intraocular pressure (IOP) may thus play a role in the pathogenesis of glaucomatous optic neuropathy. Clinical and experimental studies showed that (1) physiolo...
متن کاملCerebrospinal Fluid Pressure Decreases with Older Age
PURPOSE Clinical studies implicate low cerebrospinal fluid pressure (CSFP) or a high translaminar pressure difference in the pathogenesis of primary open angle glaucoma (POAG) and normal tension glaucoma (NTG). This study was performed to examine the effect of age, sex, race and body mass index (BMI) on CSFP. METHODS Electronic medical records from all patients who had a lumbar puncture (LP) ...
متن کاملEffects of althesin on cerebrospinal fluid pressure.
Changes in cerebrospinal fluid pressure after induction of anaesthesia with Althesin were recorded in 21 volunteer patients who had no abnormality of the central nervous or cardiorespiratory systems. In patients who breathed spontaneously, cerebrospinal fluid pressure fell by 45% at 1 min after intravenous injection of Althesin 0.1 ml/kg. It returned almost to preinduction levels by 12 min Duri...
متن کاملEmbryonic brain enlargement requires cerebrospinal fluid pressure.
The brain of the chick embryo begins to enlarge abruptly on the second day of incubation. Shortly thereafter, major flexures and torsions of the brain occur, and many bulges and furrows appear. The onset of enlargement coincides with closure of the spinal canal which makes the neural tube a closed compartment filled with cerebrospinal fluid. We propose that cerebrospinal fluid pressure is a nec...
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ژورنال
عنوان ژورنال: Journal of Neurology, Neurosurgery & Psychiatry
سال: 1970
ISSN: 0022-3050
DOI: 10.1136/jnnp.33.3.387