The Aerodynamic Analysis between Normal Voice and Esophageal Voice

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J Korean Soc Laryngol Phoniatr Logop > Volume 9(1); 1998 > Article

Journal of The Korean Society of Laryngology, Phoniatrics and Logopedics 1998;9(1): 5-10.

정상인과 식도발성 음성에서의 공기역학적 비교 연구

박국진, 최홍식, 정형진, 유신영, 박준호, 김한수

연세대학교 의과대학 이비인후과학교실, 음성언의학연구소

The Aerodynamic Analysis between Normal Voice and Esophageal Voice

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ABSTRACT

Voice rehabilitation is very important concerning in laryngectomees. Esophageal speech is a common and widely used method of voice restoration. But, until now there is no reliable data which shows the aerodynamic characteristics of esophageal speech. In order to evaluate the vocal quality of normal laryngeal and esophageal speech, several aerodynamic parameters were measured in 13 adults with normal laryngeal voice and 2 excellent esophageal speakers using Aerophone II voice function analyzer. The examined parameters were maximal flow rate, mean airflow rate, subglottic pressure, vocal efficiency, glottic resistance, maximal phonation time and mean sound pressure level. In vocal efficiency, there is no difference between two groups, but in other parameters, marked differences were showed in esophageal speakers, especially mean resistance.
Results
indicates that esophageal speakers make the efficient voices with poor aerodynamic condition, comparing with normal laryngeal speakers.

KEY WORDS： Laryngectomees;Esophageal speech;Aerodynamic parameters;