Endoscopic Diagnosis of Vocal Fold Scarring

DOI 10 References
  • Nito Takaharu
    Department of Otolaryngology, Graduate School of Medicine, University of Tokyo
  • Imagawa Hiroshi
    Department of Otolaryngology, Graduate School of Medicine, University of Tokyo
  • Tamaruya Noriko
    Department of Otolaryngology, Graduate School of Medicine, University of Tokyo
  • Yamasoba Tatsuya
    Department of Otolaryngology, Graduate School of Medicine, University of Tokyo
  • Sakakibara Ken-Ichi
    Department of Communication Disorder, Health Science University of Hokkaido
  • Tayama Niro
    Department of Otolaryngology, Graduate School of Medicine, University of Tokyo Department of Otolaryngology, Tokyo International Medical Center

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Other Title
  • 〈喉頭瘢痕性病変へのアプローチ〉声帯瘢痕の内視鏡診断

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Description

Vocal fold scarring is a fibroplastically acquired anomaly of the pliable vocal fold cover resulting from surgery, trauma or repetitive inflammation which causes vocal impairment due to abnormal vocal fold vibration. For diagnosis of vocal fold scarring, vocal fold vibration should be examined by stroboscopic videolaryngoscopy or high-speed videolaryngoscopy. In these procedures, reduced amplitude and traveling wave, phase shift between the vocal folds, and glottal closure insufficiency are observed. Imaging analysis methods include multi-line videokymography showing the time-series change of vocal fold vibration and laryngotopography showing differences in vibration at various points of the vocal fold. In cases where endoscopic diagnosis does not correspond with the dysphonic symptoms, further examination is important, keeping the possibility of vocal fold scarring in mind.

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