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ID 116494
Title Alternative
Acoustic characteristics of vocal nodules
Author
Aoki, Toshihito Tokushima University|Udaka ENT Clinic
Takeyama, Takaaki Tokushima University|Udaka ENT Clinic
Sakamoto, Yuki Tokushima University
Shimada, Aki Tokushima University
Nakano, Seiichi Tokushima University
Hosokawa, Kiyohito Osaka University
Udaka, Jiro Tokushima University|Udaka ENT Clinic
Keywords
vocal nodules
pediatric patients
dysphonia
acoustic analysis of voice
Content Type
Journal Article
Description
Objective : In the present study, an attempt was made to evaluate the acoustic characteristics of voice in pediatric patients with vocal nodules using acoustic analysis of voice. Methods : Thirty-five pediatric patients with vocal nodules and 32 control children without dysphonia were enrolled in this study. Their voice samples were analyzed using the Multi-Dimensional Voice Program. Acoustic parameters of voice, such as pitch period perturbation quotient (PPQ), amplitude perturbation quotient (APQ), and noise-to-harmonic ratio (NHR), were measured. Results : In phonation at a loudness of over 80 dBA, the PPQ, APQ, and NHR values of the voice significantly increased in children with vocal nodules than in the control children without dysphonia. The sensitivities and specificities of PPQ, APQ, and NHR for prediction of vocal nodules in children were 62.86% and 84.38%, 74.29% and 75.00%, and 31.43% and 93.75%, respectively. Discussion : The present findings suggest that vocal nodules affect vocal fold vibration, resulting in impaired control of pitch and loudness leading to increased noise components. NHR could be used to evaluate the efficacy of treatment, such as voice rehabilitation, in pediatric patients with vocal nodules because of its high specificity for prediction of vocal nodules in children.
Journal Title
The Journal of Medical Investigation
ISSN
13496867
13431420
NCID
AA11166929
Publisher
Tokushima University Faculty of Medicine
Volume
68
Issue
3-4
Start Page
276
End Page
279
Sort Key
276
Published Date
2021-08
DOI (Published Version)
URL ( Publisher's Version )
FullText File
language
eng
TextVersion
Publisher
departments
University Hospital
Medical Sciences