Your browser doesn't support javascript.
loading
Glottal Aerodynamic Measures in Women With Phonotraumatic and Nonphonotraumatic Vocal Hyperfunction.
Espinoza, Víctor M; Zañartu, Matías; Van Stan, Jarrad H; Mehta, Daryush D; Hillman, Robert E.
Afiliação
  • Espinoza VM; Department of Electronic Engineering, Universidad Técnica Federico Santa María, Valparaíso, Chile.
  • Zañartu M; Department of Sound, Universidad de Chile, Santiago.
  • Van Stan JH; Department of Electronic Engineering, Universidad Técnica Federico Santa María, Valparaíso, Chile.
  • Mehta DD; Center for Laryngeal Surgery & Voice Rehabilitation, Massachusetts General Hospital, Boston.
  • Hillman RE; MGH Institute of Health Professions, Boston, MA.
J Speech Lang Hear Res ; 60(8): 2159-2169, 2017 08 16.
Article em En | MEDLINE | ID: mdl-28785762
Purpose: The purpose of this study was to determine the validity of preliminary reports showing that glottal aerodynamic measures can identify pathophysiological phonatory mechanisms for phonotraumatic and nonphonotraumatic vocal hyperfunction, which are each distinctly different from normal vocal function. Method: Glottal aerodynamic measures (estimates of subglottal air pressure, peak-to-peak airflow, maximum flow declination rate, and open quotient) were obtained noninvasively using a pneumotachograph mask with an intraoral pressure catheter in 16 women with organic vocal fold lesions, 16 women with muscle tension dysphonia, and 2 associated matched control groups with normal voices. Subjects produced /pae/ syllable strings from which glottal airflow was estimated using inverse filtering during /ae/ vowels, and subglottal pressure was estimated during /p/ closures. All measures were normalized for sound pressure level (SPL) and statistically tested for differences between patient and control groups. Results: All SPL-normalized measures were significantly lower in the phonotraumatic group as compared with measures in its control group. For the nonphonotraumatic group, only SPL-normalized subglottal pressure and open quotient were significantly lower than measures in its control group. Conclusions: Results of this study confirm previous hypotheses and preliminary results indicating that SPL-normalized estimates of glottal aerodynamic measures can be used to describe the different pathophysiological phonatory mechanisms associated with phonotraumatic and nonphonotraumatic vocal hyperfunction.
Assuntos
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Fonação / Doenças da Laringe / Pressão do Ar / Disfonia / Glote Limite: Adult / Female / Humans Idioma: En Revista: J Speech Lang Hear Res Assunto da revista: AUDIOLOGIA / PATOLOGIA DA FALA E LINGUAGEM Ano de publicação: 2017 Tipo de documento: Article País de afiliação: Chile País de publicação: Estados Unidos
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Fonação / Doenças da Laringe / Pressão do Ar / Disfonia / Glote Limite: Adult / Female / Humans Idioma: En Revista: J Speech Lang Hear Res Assunto da revista: AUDIOLOGIA / PATOLOGIA DA FALA E LINGUAGEM Ano de publicação: 2017 Tipo de documento: Article País de afiliação: Chile País de publicação: Estados Unidos