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Updated: Sep 21, 2025

Topical Airway Anesthesia for Awake-endoscopic Intubation Using the Spray-as-you-go Technique with High Oxygen Flow
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[Effects of topical anesthesia with 1% tetracaine on hemodynamic responses in microlaryngosurgery]

Z Wei1, Y Xin1, L L Wu1

  • 1Department of Anesthesiology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China.

Zhonghua Yi Xue Za Zhi
|June 1, 2022
PubMed

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Cocaine is an ester of benzoic acid and methylecgogine. It is used to anesthetize and vasoconstrict locally. Currently, it is used primarily for topical applications. It is beneficial for surgeries on the upper respiratory tract, providing anesthesia and shrinking the mucosa. Cocaine in the form of cocaine hydrochloride is...
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