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.
纵隔硬膜外
相比,硬膜外
抑制交感
经,引起明显血流动力学变化,而纵隔
抑制心交感和心迷走
经,不引起明显血流动力学变化。