Reinke's edema is used for describing varying degrees of chronic swelling of the vocal folds. The acoustic analysis of Reinke's edema has not been reported so far in this country. The purpose of this study is to clarify acoustic and aerodynamic
characteristics of the Reinke's edema. Several acoustic evaluations & aerodynamic studies were done in 20 Reinke's edema patients and the data was compared with those of 20 normal controis.
Videolaryngoscopy also was done to classify the severity in grading. We used C-Speech, Doctor speech science, and Phonatory function analyser. In C-Speech, we compared jitter, shimmer, and SNR(signal to noise ratio) of normal and Reinke's edema
patient.
In Doctor speech science, we compared NNE(Glottal Noise energy), speech fundamental frequency, voice quality between two groups. And in phonatory function analyser for aerodynamic function test, we compared speech intensity, airflow rate, and
expiratory
pressure between two group.
In conclusion, Reinke's edema patients showed lower voice pitches than normal, additionally litter, shimmer, SNR(signal to noise ratio), NNE(Glottal noise energy), airflow rate, and expiratory pressure may be meaningful parameters for diagnosis
and
prognosis for treatment.
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