Grévy V, Escuret E
Département d'anesthésie-réanimation B, hôpital Saint-Eloi, Montpellier, France.
Ann Fr Anesth Reanim. 1998;17(2):144-8. doi: 10.1016/S0750-7658(98)80064-6.
It is generally assumed that the jugular veins are the only significant path for cerebral venous drainage. Little attention has been given to the possible role of other venous paths for the cerebral venous outflow. In fact, the meningorachidian venous plexus acts as the major outflow tract of cerebral circulation in the upright position. This phenomenon is linked with postural variations in cerebrospinal fluid pressure. It is difficult to assess the significance of this posterior venous plexus under physiopathologic conditions, which probably depends on the extent of the anastomoses between the two systems.
一般认为颈静脉是脑静脉引流的唯一重要途径。对于其他静脉途径在脑静脉流出中可能发挥的作用，人们关注较少。事实上，脑脊膜静脉丛在直立位时充当脑循环的主要流出道。这种现象与脑脊液压力的体位变化有关。在生理病理条件下，很难评估这个后静脉丛的重要性，这可能取决于两个系统之间吻合的程度。
