Measurement of phonation threshold power in normal and disordered voice production.
Ann Otol Rhinol Laryngol
; 122(9): 555-60, 2013 Sep.
Article
em En
| MEDLINE
| ID: mdl-24224398
ABSTRACT
OBJECTIVES:
Phonation threshold pressure (PTP) and phonation threshold flow (PTF) are useful aerodynamic parameters, but each is sensitive to different disorders. A single comprehensive aerodynamic parameter sensitive to a variety of disorders might be beneficial in quantitative voice assessment. We performed the first study of phonation threshold power (PTW) in human subjects.METHODS:
PTP and PTF were measured in 100 normal subjects, 19 subjects with vocal fold immobility, and 94 subjects with a benign mass lesion. PTW was calculated from these two parameters. In 41 subjects with a polyp, measurements were obtained before and after excision. Receiver operating characteristic (ROC) analysis was used to determine the ability of the three parameters to distinguish between controls and disordered groups.RESULTS:
The PTW (p < 0.001), PTP (p < 0.001), and PTF (p < 0.001) were different among the three groups. All parameters decreased after polyp excision. PTW had the highest area under the ROC curve for all analyses.CONCLUSIONS:
PTW is sensitive to the presence of mass lesions and vocal fold mobility disorders. Additionally, changes in PTW can be observed after excision of mass lesions. PTW could be a useful parameter to describe the aerodynamic inputs to voice production.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Fonação
/
Pólipos
/
Prega Vocal
/
Qualidade da Voz
/
Distúrbios da Voz
/
Neoplasias Laríngeas
/
Laringe
Tipo de estudo:
Diagnostic_studies
/
Etiology_studies
/
Prognostic_studies
Limite:
Adult
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
Ann Otol Rhinol Laryngol
Ano de publicação:
2013
Tipo de documento:
Article
País de afiliação:
China