词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.
纵隔阻滞
硬膜外阻滞相比，硬膜外阻滞抑制交感神经，引起明显血流动力学变化，而纵隔阻滞同时抑制
交感
走神经，不引起明显血流动力学变化。
