The Clinical Significance of Phoniatric Function Tests

概要

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The main clinical objectives of phoniatric function tests are in the establishment of degree severity of the vocal disorder and the evaluation of the effect of therapy. The clinical significance of phoniatric function tests was evaluated in reference to recurrent nerve palsy (RNP) from diagnosis and through the course of treatment in this paper.<BR>Psychoacoustic evaluation is an ideal phoniatric function test to determine the total quality of voice but the results are variable since it is dependent on the individual conducting the evaluation. The results of the maximum phonation time coincides with the clinical course of the treatment. Recently, with the use of the computer, numerous parameters for acoustic analyses of speech can now be performed in a very short time. Pre-operative and post-operative amplitude perturbation quotient, pitch perturbation quotient and noise level in patients with RNP, laryngeal polyp and Reinke's edema were determined. In cases in which severe deterioration of the quality of voice was observed, the course of treatment coincided with the changes in the quality of voice. For determination and analysis of pre-operative and post-operative conditions in RNP, the EGG is ideal.<BR>The superiority of an apparatus which can display the vocal pitch, intensity, flow rate, etc. as a feedback for voice therapy in real time is also reported in this paper.
The Japan Laryngological Associationの論文