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.

纵隔滞与硬滞相比，硬滞制经，引起明显血流动力学变化，而纵隔滞同时制心和心迷走经，不引起明显血流动力学变化。