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Vibratory Behavior vs Extent of Lesion

Rongxiang Zhao, MD; Minoru Hirano, MD; Shinzo Tanaka, MD; Kiminori Sato, MD

Arch Otolaryngol Head Neck Surg. 1991;117(9):1015-1018.

Abstract
• The vibratory behavior of 72 vocal folds with epithelial hyperplasia or dysplasia was investigated by means of videostroboscopy. The amplitude of vibration (AMP) and mucosal wave (WAV) were related to the relative area, depth, and relative volume of the lesion. The AMP and WAV were evaluated for the entire vocal fold (AMP_E, WAV_E) and for the affected portion or the lesion (AMP_L, WAV_L). The AMP_E, AMP_L, WAV_E, and WAV_L were negatively related to the relative area, depth, and relative volume. The relationship between the limited vibratory movement and the extent of the lesion was most significantly manifested in WAV_L. A complete absence of any vibratory movement of the vocal fold took place only for large lesions occupying three fourths or more of the membranous vocal fold.

(Arch Otolaryngol Head Neck Surg. 1991;117:1015-1018)

Author Affiliations
From the Department of Otolaryngology—Head and Neck Surgery, Kurume (Japan) University. Dr Zhao is on leave of absence from the Department of Otolaryngology, Affiliated Hospital of Zhejiang (People's Republic of China) College of Traditional Chinese Medicine.

Footnotes
Accepted for publication February 6, 1991.

Reprint requests to Department of Otolaryngology—Head and Neck Surgery, Kurume University, 67 Asahi-machi, Kurume 830, Japan (Dr Hirano).

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