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KMID : 0384020080190010038
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Journal of the Korean Society of Logopedics and Phoniatrics
2008 Volume.19 No. 1 p.38 ~ p.42
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The Perceptual Evaluation and Aerodynamic Analysis of Spasmodic Dysphonia
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Park Sun-Young
Choi Hong-Shik
Nam Do-Hyun
Kim Jae-Ock
Lim Sung-Eun
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Abstract
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Background and Objectives : This study was performed to investigate the perceptual and aerodynamic characteristics and the relation between vocal efficiency and the severity of strained voice. of adductor spasmodic dysphonia.
Materials and Methods : 13 female patients with adductor spasmodic dysphonia were examined and compared with 10 normal female control group. MPT, MFR, Psub, Sound Intensity, VE(vocal efficiency) were obtained using PAS(Phonatory Aerodynamic System). GRBA(S) scale was used for Perceptual evaluation.
Results : Psub(subglottic pressure) of SD was significantly higher than normal group. MPT, MFR, Sound Intensity, VE were not significantly different between two groups. Correlation between VE and ’S’(strained) was not significant.
Conclusion : The results of this study show that certain aerodynamic parameters(Psub) distinguish adductor spasmodic dysphonia from normal voice.
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KEYWORD
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Spasmodic Dysphonia, Perceptual Evaluation, Aerodynamic Analysis, Vocal efficiency
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