Externally induced vibration on massive vocal fold.

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概要

• 論文の詳細を見る

• For successful performance of phonosurgery, it is most important to maintain the flexibility of the vocal fold. Unfortunately, however, there has been no direct effective method so far for assessing the flexibility of the vocal fold membrane. If the vocal fold surface showed any abnormal region where good vibration could not be observed, reduced flexibility was expected in this area. Hitherto, for observation of the vocal fold vibration, a laryngostroboscope has been in use clinically. However, the laryngostroboscope can not be applied effectively when the patient is unable to phonate for reasons such as under general anesthesia with tracheal tube or when his/her voice is too hoarse to drive a laryngostroboscope well. Instead of observing phonatory vibrations, Fukuda designed a new vibratory method that makes it possible to externally induce wavelike motion on the surface of the vocal fold even under aforementioned unfavorable conditions. In this study, by using the new method, it was possible to observe externally induced vibration on the normal membrane surrounding the abnormal region with mass as well as in the abnormal region itself such as in polyp, cyst, or polypoid degeneration. We were also able to examine whether the abnormal regions with mass would have any effect on the vocal fold. As result, by this method of externally inducing vibration, we were able to detect the mucous membrane lined cavities of the polyp on the surface. The mass had hardly any effect on the normal region.

• The Keio Journal of Medicineの論文

著者

• 福田 宏之

  Department of Otolaryngology, School of Medicine, Keio University

• 川崎 順久

  Department of Otolaryngology, School of Medicine, Keio University

• 紀太 康一

  Department of Otolaryngology, School of Medicine, Keio University

• 都築 達

  Department of Otolaryngology, Dokkyo University, School of Medicinee Koshigaya Hospital

• 藤岡 正

  Department of Otolaryngology, Hiratsuka City Hospital

• 大木 和明

  Department of Otolaryngology, School of Medicine, Keio University

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• Externally induced vibration on massive vocal fold.
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