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LARYNGOMICROSURGERY UNDER LOCAL ANESTHESIA Yoshikazu Yoshida 1,2 pp.159-163
Published Date 1974/3/20
DOI https://doi.org/10.11477/mf.1492208034
  • Abstract
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 Laryngomicrosurgery under general anesthesia with intubation contains several disadvantages: 1. The tube occupying the laryngeal cavity sometimes interferes with a complete exposure of the diseased parts and intralaryngeal manipulations; 2. Inability of the surgeon testing the patient's voice during the operative procedure; and, 3. By being time- and money-consuming. These disadvantages could be obviated by adopting local anesthesia.

 Since 1970, the authors have performed laryngomicrosurgery in 19 cases under local anesthesia. The results were satisfactory.

 The patients are given diazepam, morphine-hydrochloride-scopolamine and levallerphan as premidications. The pharyngeal and laryngeal mucosa are anesthetized with lidocaine (xylocaine) solution. Bilateral superior laryngeal nerveblock is performed. This procedure combined with surface anesthesia strengthens the anesthetic effect which lasts about 20 minutes in duration.

 The authors have not experienced any serious complications, so far. Two patients had complained of dental pain and one of the throat pain but not to the extent that they interfered with the progress of the operation.

 Comparing the two methods of anesthesia, the topical anesthesia is also endowed with some disadvantages. 1. It should not be employed in children less than 10 years of age. 2. The operative time is limited. 3. The use of muscular relaxant is prohibitive.


Copyright © 1974, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 印刷版ISSN 0386-9679 医学書院

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