CEREBROVASCULAR CO2 REACTIVITY OF FAST AND SLOW CLEARING COMPARTMENTS
CEREBROVASCULAR CO2 REACTIVITY OF FAST AND SLOW CLEARING COMPARTMENTS
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DOI：
10.1161/01.str.5.5.607
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发表时间：
1974-01-01
期刊：
影响因子：
8.3
通讯作者：
SYMON, L
中科院分区：
文献类型：
--
作者：
ILIFF, LD;ZILKHA, E;SYMON, L
利用注入颈内动脉的133xenon的清除，在两个PaCO2水平下进行了区域脑血流测量。PaCO2每毫米汞柱血流量变化的百分比。（co2反应性）计算了快速和缓慢清除组织（Ff和Fs）和F初始值。快速清除组织的平均半球二氧化碳反应性略高于缓慢清除组织（P = 0.05）。在区域基础上，CO2越大，5个区域的Ff对Fs的反应性显著（P≤0.05）。Ff和F的平均比反应性和电导（电阻的倒数）之间存在很强的正线性相关，并在F的初始值中得到证实。
Regional cerebral blood flow measurements have been made at two levels of PaCO2, using the clearance of133Xenon injected into the internal carotid artery. Specific and percent changes in blood flow per mm Hg change in PaCO2. (CO2reactivity) have been calculated for the fast and slow clearing tissue (Ff and Fs) and F initial. Mean hemisphere CO2reactivity was marginally greater in the fast clearing tissue than in the slow clearing tissue (P = 0.05). On a regional basis the greater CO2, reactivity of Ff over Fs was significant in five areas (P ≤ 0.05). A strong positive linear correlation between mean specific reactivity and conductance (the reciprocal of resistance) has been demonstrated for Ff and Fs and confirmed in the F initial.