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Journal Information
Vol. 56. Issue 10.
Pages 482-487 (December 2005)
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Vol. 56. Issue 10.
Pages 482-487 (December 2005)
Caracterización acústica y aerodinámica de la voz esofágica
Acoustic and aerodynamic characteristics of the oesophageal voice
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F. Vázquez de la Iglesia1,1, S. Fernández González2
1 Hospital Ntra. Sra. de Belén. La Coruña
2 Clínica Universitaria de Navarra. Pamplona
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Resumen
Objetivos

Desarrollar un método que permita cuantificar objetivamente los parámetros fisiológicos implicados en la voz esofágica, diagnosticando distintas calidades de voz y asentar las bases para un futuro protocolo de rehabilitación vocal adaptado a la consulta clínica diaria

Material y Métodos

Se estudiaron 33 pacientes laringectomizados que participaron en un protocolo aerodinámico, acústico y perceptual de la voz (aceptabilidad)

Resultados

Existe una asociación estadísticamente significativa entre las variables acústicas y aerodinámicas cualitativas (patrones de onda de flujo fonatorio, espectrograma sonoro, análisis perceptual) con respecto a las variables cuantitativas (presión neoglótica, flujo fonatorio, tiempo de fonación, frecuencia fundamental, intensidad máxima y speech rate)

Conclusiones

El método resulta eficaz, fiable y objetivo para el estudio de la voz esofágica y es reproducible y adaptable en la práctica clínica. Los parámetros cualitativos y cuantitativos son susceptibles de ser monitorizados y suponen la base de un sistema de retroalimentación positiva en la rehabilitación de la voz esofágica

Palabras clave:
Voz esofágica
Presión neoglótica
Flujo fonatorio
Análisis perceptual
Abstract
Objective

The aim of the study is to determine the physiology and pathophisiology of esophageal voice according to objective aerodynamic and acoustic parameters (quantitative and qualitative parameters)

Material and Methods

Our subjects were comprised of 33 laryngectomized patients (all male) that underwent aerodynamic, acoustic and perceptual protocol

Results

There is a statistical association between acoustic and aerodynamic qualitative parameters (phonation flow chart type, sound spectrum, perceptual analysis) among quantitative parameters (neoglotic pressure, phonation flow, phonation time, fundamental frequency, maximum intensity sound level, speech rate)

Conclusion

Nevertheles, not always such observations bring practical resources to clinical practice. We consider that the facts studied may enable us to add, pragmatically, new resources to the more effective vocal rehabilitation to these patients. The physiology of esophageal voice is well understood by the method we have applied, also seeking for rehabilitation, improving oral communication skills in the laryngectomee population

Key words:
Esophageal voice
Neoglotic pressure
Phonation flow
Perceptual analysis

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