Original Article

Clinical Study on Phonatory Function of Pre and Post-Operative Condition of Vocal Nodules

Young Il Moon
Author Information & Copyright
Department of Otolaryngology, College of Medicine, Ewha Womans University, Seoul, Korea.
Corresponding author: Young Il Moon. Department of Otolaryngology, College of Medicine, Ewha Womans University, Seoul, Korea.

Copyright ⓒ 1978. Ewha Womans University School of Medicine. This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Published Online: Jul 24, 2015

Abstract

The localized vocal polyp and singer's nodules are the most common benign lesion of the larynx. This lesion is due mainly to trauma secondary to vocal abuse.

These nodules were ressected out with laryngeal forcep under indirect laryngoscopy and maximum phonation time was measured before and after the operation.

Timbre of the voice was also analyzed at same time.

Very shortened phonation time of the patient with vocal nodule has returned to normal range (male:30 seconds, female: 20 seconds) postoperatively.

Maximum phonation time has been widely utilized as a simple clinical test for evaluating the vocal function.

It is the purpose of this study to acknowledge how much the expiratory movement during the phonation is converted into a single vowel sound efficiently. The author has made a brief literature review.