Effects of vocal nodules on acoustic characteristics of voice in children : an acoustic analysis of voice

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Bibliographic Information

Title
Effects of vocal nodules on acoustic characteristics of voice in children : an acoustic analysis of voice
Other Title
  • 声帯結節が小児の音声の音響的特徴に与える影響 : 音声の音響分析
  • Acoustic characteristics of vocal nodules
Author
Aoki, Toshihito
Alias Name
  • 青木, 俊仁
  • アオキ, トシヒト
Author
Takeyama, Takaaki
Alias Name
  • タケヤマ, タカアキ
  • タケヤマ, タカアキ
Author
Sakamoto, Yuki
Alias Name
  • サカモト, ユキ
  • サカモト, ユキ
Author
Shimada, Aki
Alias Name
  • 島田, 亜紀
  • シマダ, アキ
Author
Kondou, Eiji
Alias Name
  • 近藤, 英司
  • コンドウ, エイジ
Author
Nakano, Seiichi
Alias Name
  • 中野, 誠一
  • ナカノ, セイイチ
Author
Fukuda, Junya
Alias Name
  • 福田, 潤弥
  • フクダ, ジュンヤ
Author
Azuma, Takahiro
Alias Name
  • 東, 貴弘
  • アズマ, タカヒロ
Author
Satou, Gou
Alias Name
  • 佐藤, 豪
  • サトウ, ゴウ
Author
Kitamura, Yoshiaki
Alias Name
  • 北村, 嘉章
  • キタムラ, ヨシアキ
Author
Hosokawa, Kiyohito
Alias Name
  • ホソカワ, キヨヒト
  • ホソカワ, キヨヒト
Author
Udaka, Jiro
Alias Name
  • ウダカ, ジロウ
  • ウダカ, ジロウ
Author
Takeda, Noriaki
Alias Name
  • 武田, 憲昭
  • タケダ, ノリアキ
University
徳島大学
Types of degree
博士（医学）
Grant ID
甲医第1518号
Degree year
2022-03-23

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.

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