MB leads little changes of hemodynamics due to inhibit cardiac sympathicotonia and pneumogastric nerve simultaneity, but TEB brings the evident changes due to only inhibit pneumogastric nerve.
纵隔
与硬膜
相比，硬膜抑制交感神经，引起明显血流动力
变化，而纵隔同时抑制
交感
走神经，不引起明显血流动力变化。
