sympathetic block

Both SGB and TEB belong to block nerve. There are some similarity to effect of stress response. SGB can block sympathetic nerve to head, neck, limb, heart, lung, decrease erethism of sympathetic nerve.

SGB与硬膜外阻滞都属于神经阻滞，对应激反应作用有相似之处，SGB可阻断通往头、颈、上肢、心脏、肺的交感神经，使其兴奋性降低。

Conclusions: HIFU can block the conduction of sympathetic nerve and visceral afferent fibre completely at once. Alcohol can block sympathetic efferent nerve just as HIFU, but the degree in blocking the conduction of visceral afferent fibre is less than HIFU.

结论：HIFU可以立刻同时完善地阻断交感神经和内脏感觉神经的传导，乙醇可立刻阻断交感神经的传出神经纤维，对内脏感觉神经的传导阻滞程度较HIFU差。