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KMID : 1004320200310020056
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Journal of the Korean Society of Logopedics and Phoniatrics
2020 Volume.31 No. 2 p.56 ~ p.60
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Anesthesia for Office Based Vocal Fold Injection
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Kim Han-Su
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Abstract
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Vocal fold injections are usually performed with a patient wake in an office under local anesthesia.
For comfortable and safe office-based procedures, thorough anesthesia and premedication should be provided to the following three regions; nasal cavity, oropharynx, and larynx. Topical lidocaine is most widely used anesthetics on office based procedure. Lidocaine has a low to intermediate potency, 45 minutes to 60 minutes’ duration of action, and onset of sufficient anesthesia within 90 seconds of topical administration. Tetracaine, prilocaine, ropivacaine, and bupivacaine also have been used in the office-based procedures. Nasal decongestant, oxymetazoline, is also used for widening nasal cavity by constriction of nasal mucosa. The amount of topical and local anesthetics used in vocal fold injection rarely exceeds toxic doses. The physician should know proper anesthesia techniques and must be familiar with the safe dose and complication of all anesthetics used.
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KEYWORD
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Vocal cords, Anesthesia, Laryngoplasty, Injection, Lidocaine, Oxymetazoline
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