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Inicio Acta Otorrinolaringológica Española Patología “irritativa” del conducto auditivo externo y disminución de la s...
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Vol. 53. Issue 5.
Pages 384-386 (May 2002)
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Vol. 53. Issue 5.
Pages 384-386 (May 2002)
Patología “irritativa” del conducto auditivo externo y disminución de la sensación sonora
Dysesthesia of the external auditory canal and decreased hearing sensation
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A. Rosell Cervilla*, F.J. García Purriños, J. Calvo Moya
Servicio de otorrinolaringología del hospital de hellín. Albacete
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Resumen

En la literatura no hemos encontrado una explicación para la disminución intermitente y transitoria de la sensación sonora en pacientes con patología "irritativa" del conducto auditivo externo (CAE). En este artículo ofrecemos una posible explicación. Hipotetizamos que la estimulación de las fibras sensitivas de los nervios trigémino y facial en el CAE es capaz de producir un aumento de la rigidez de la cadena osicular a través de la estimulación refleja de los músculos del martillo y el estribo. Este aumento intermitente y transitorio de la rigidez provocaría la disminución intermitente y transitoria de la sensación sonora en estos pacientes.

Palabras clave:
Conducto auditivo externo
Cadena osicular
Sensación sonora
Abstract

We have not found in the literature an explanation for the intermittent and transient decreased lesser hearing sensation in patients with dysesthesia of the external auditory canal (EAC). In this paper we offer a possible explanation for it. Our hypothesis is that the stimulation of the sensory fibers of the trigeminal and facial nerves in the EAC is able to increase the stiffness of the ossicular chain by means of a reflex stimulation of malleus and stapes muscles. This intermittent and transient increase of the ossicular stiffness could explain the intermittent and transiet decrease of hearing sensation in these patients.

Key words:
External auditory Canal
Ossicular chain
Hearing sensation

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