Dynamic pressures in the pial arterial microcirculation.
Dynamic pressures in the pial arterial microcirculation.
复制标题
软脑膜动脉微循环的动态压力。
DOI：
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发表时间：
1971
影响因子：
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通讯作者：
Wiederhielm
中科院分区：
文献类型：
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作者：
Harvey;M.;Shapiro;Don;D.;Stromberg;Dennis;R.;Lee;Axd Curt;A.;Wiederhielm
哈维·沙皮罗，唐·D丹尼斯·斯特龙伯格Lee，AND Curt A. WIEDERHIELM。软脑膜动脉微循环的动态压力。Am. J.Physiol.221（1）：279-283. 1971.本文用改进的Wiederhielm伺服微量移液器（移液器针头直径为0.5 ~ 1.0mm），测量并记录了8只戊巴比妥麻醉猫顶叶皮层表面软脑膜血管网的42支动脉和小动脉的动态动脉压。主动脉压、平均中心静脉压和潮气末CO：！也被记录下来。在大脑中动脉的分支中，直径为455 pod，动脉压仅为主动脉压的61 y 0。从这些主要血管穿过软脑膜动脉床向下到穿透性小动脉的额外压头损失（约为1.5%）。25 pod）的平均存活率仅为10%。这些结果与软脑膜动脉网络的“压力均衡储库”概念是一致的。
SHAPIRO, HARVEY M., DON D. STROMBERG, DENNIS R. LEE, AND CURT A. WIEDERHIELM. Dynamic pressures in the pial arterial microcirculation. Am. J. Physiol. 22 l(1) : 279-283. 197 1 .-Using a modified Wiederhielm servo-micropipet system with pipet tips of 0.5-l p diam, we measured and recorded dynamic arterial pressures in 42 arteries and arterioles of the pial vascular network on the surface of the parietal cortex of eight pentobarbitalanesthetized cats. Aortic pressure, mean central venous pressure, and end-tidal CO:! were also recorded. In branches of the middle cerebral artery as large as 455 p od, pressure was only 61 y0 of aortic pressure. Additional pressure-head loss from these major vessels across the pial arterial bed down to the penetrating arterioles (approx. 25 p od) was only 10 %. These results are compatible with the “pressure equalization reservoir” concept of the pial arterial network.