导师
发表于 2025-3-26 20:57:44
Ischaemic Thresholds and Development of Ischaemia,extracellular space remains stable until CBF levels of 20 ml/100 g/min; below this value pH fell rapidly (Harris .. 1987) and an increase in brain water was observed (Symon .. 1979). If CBF falls to about 10 ml/100 g/min, further cytotoxic oedema occurs as a result of sodium passage into the cells.
运动的我
发表于 2025-3-27 02:56:28
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解决
发表于 2025-3-27 07:00:17
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枯燥
发表于 2025-3-27 12:54:10
Measurement and Cerebral Blood Flow and Oxygen Consumption, and the Regulation of Cerebral Circulatmplete equilibration in concentration between blood and tissue. The principle of calculation of CBF is based on the measurement of .. The technique has been developed during the last 40 years and was originally introduced by Kety and Schmidt (1945) with the use of . as tracer. Later, the technique w
Cursory
发表于 2025-3-27 17:26:10
Ischaemic Thresholds and Development of Ischaemia,00 g/min and irreversible paralysis supervenes when CBF is permanently reduced to about 17–18 ml (Heiss .. 1976, Jones .. 1981). In studies of gerbils subjected to acute cerebral ischaemia by carotid ligation, a CBF threshold of CBF at 20 m1/100 g/min has been defined; below this threshold MR spectr
GLOSS
发表于 2025-3-27 20:59:16
The Effect of Barbiturate and Mannitol on CBF and Metabolism,ssed. The use of Ca + + blocking agents and indomethacin will not be discussed in this review, because at present no clinical studies in patients with severe head injury are available. On the other hand, barbiturate and mannitol have been used in the control of ICP-hypertension for many years. In th
抛射物
发表于 2025-3-27 22:01:32
Experimental Studies of Head Injury,rculation and metabolism. Later, the effect of mass-lesions caused by haematoma, ischaemia, brain oedema, intracranial hypertension, and systemic hypotension and hypertension may influence ICP, CBF, and CMRO.. Accordingly, studies in experimental models, including one or more of these pathogenic fac
subordinate
发表于 2025-3-28 03:00:40
Human Studies of Head Injury,91%. These changes are found in the cerebral cortex in 46%, hippocampus 81%, cerebellum 36% and to the basal ganglia in 79% (Graham .. 1978). Moreover, direct impact after a blunt lesion and secondary events like hypotension might result in localized necrosis at boundary zones between the major cere
gospel
发表于 2025-3-28 09:26:39
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foppish
发表于 2025-3-28 14:04:31
Summary,m of this review to describe the dynamic changes in CBF, cerebral metabolic rate of oxygen (CMRO.), cerebral autoregulation (CA), and reactivity to PaCO. and barbiturate (metabolic reactivity) in the acute phase after severe head injury and to discuss the therapeutical consequences with reference to