Total anesthesia with laryngopharynx topical anesthesia ensure saf...

全麻加咽喉黏膜表面麻醉手术安全，成功率高。

To compare the effect between general anesthesia by nasal cavity blindly intubation with and without topical anesthesia through thyrocricocentesis in maxillofacial operations.

比较行环甲膜穿刺表麻与否对全麻鼻腔盲探插管的影响。