Local Postural Vasomotor Reflexes Arising from the Limb Veins
Local Postural Vasomotor Reflexes Arising from the Limb Veins
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来自肢体静脉的局部姿势性血管舒缩反射
DOI：
10.1161/01.res.1.1.27
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发表时间：
1953
影响因子：
20.1
通讯作者：
A. C. Burton
中科院分区：
文献类型：
--
作者：
P. Gaskell;A. C. Burton
以对侧手指为对照，以心脏上方或下方的血管水平为指标，用体积描记法研究脚趾和手指的血流量。当血管接近心脏水平时，视流量最大。从血管内静水压力下降时血管变窄和关闭的角度解释了血管升高时流量减少的原因。下肢低垂时血流减少可解释为局部静脉扩张引起血管收缩的证据。这引起了对经典流动方法的严重质疑。
Blood flow of the toes and fingers was studied plethysmographically with the level of the blood vessels below or above the heart, using the contralateral digit as control. The apparent flow is a maximum when the vessels are near the heart level. The decrease of flow when the vessels are raised is explained on the basis of narrowing and closure of vessels when the hydrostatic pressure within them falls. The decrease in flow when the limb is lowered is interpreted as evidence of a vasoconstriction elicited by distension of the local veins. This raises serious doubt about the classic flow method.