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
与硬膜外阻
相比,硬膜外阻



神经,引起明显血流动力
变化,而纵隔阻
同时
心

心迷走神经,不引起明显血流动力
变化。

神经过敏


