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Anales de Otorrinolaringología Mexicana

2006, Number 2

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Otorrinolaringología 2006; 51 (2)

Aerodynamic study of esophageal voice

Vázquez IF, Fernández GS, Gómez MC

Language: Spanish
References: 22
Page: 76-81
PDF size: 340.10 Kb.


ABSTRACT

Objective
To study the physiology of esophageal voice in function of the following aerodynamic parameters: neoglottic pressure (mmH2O), phonation flow (ls-1) and phonation time (s).

Patients and method
A sample of 33 laryngectomized patients was studied during the phonation of consonant-vowel /pa/, measuring aerodynamic parameters of neoglottic pressure (mmH2O) and phonation flow (ls-1) with a Rothemberg mask, and the phonation time of vowel /i/.

Results
Quantitative aerodynamic results were analyzed and three patterns were obtained (A, B and C), clearly differentiated in the graphical analysis of the phonation flow waves.

Conclusions
The method used is efficient to study the aerodynamics of esophageal voice. Characterization of graphical patterns of phonation flow (A, B and C) determines the trend of quantitative aerodynamic parameters and may be used as a tool (monitoring) in the rehabilitation of esophageal voice.


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