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.
纵隔与硬膜外
比,硬膜外
抑制交感
经,引起明显血流动力学
,
纵隔
同时抑制心交感和心迷走
经,不引起明显血流动力学
。