Electrocochleography and topographic diagnosis

We present a group of 50 patients with retrocochlear pathology, divided on 41 (82 per 100) non tumoral and 9 (18 per 100) tumoral: 8 cerebello-pontine angle meningiomas and 1 intracranial cholesteatoma. The retrocochlear diagnosis of the pathology is assessed by the results of the audiovestibular ex...

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Bibliographic Details
Published inActa otorrinolaringológica española Vol. 42; no. 5; p. 385
Main Authors Ayerbe, I, Ucelay, I, Negrevergne, M, Portmann, D, Boussens, J
Format Journal Article
LanguageSpanish
Published Spain 01.09.1991
Subjects
Acoustic Impedance Tests
Adult
Audiometry
Audiometry, Evoked Response
Cerebellar Neoplasms - complications
Cerebellar Neoplasms - diagnosis
Cerebellar Neoplasms - physiopathology
Cerebellopontine Angle
Cholesteatoma - complications
Cholesteatoma - diagnosis
Cholesteatoma - physiopathology
Cranial Nerve Diseases - diagnosis
Cranial Nerve Diseases - etiology
Cranial Nerve Diseases - physiopathology
Electrodiagnosis - methods
Female
Humans
Labyrinth Diseases - diagnosis
Labyrinth Diseases - etiology
Labyrinth Diseases - physiopathology
Male
Meningioma - complications
Meningioma - diagnosis
Meningioma - physiopathology
Middle Aged
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Summary:We present a group of 50 patients with retrocochlear pathology, divided on 41 (82 per 100) non tumoral and 9 (18 per 100) tumoral: 8 cerebello-pontine angle meningiomas and 1 intracranial cholesteatoma. The retrocochlear diagnosis of the pathology is assessed by the results of the audiovestibular explorations, specially the electrophysiology (early auditory evoked response, electrocochleography). The neuroradiologic explorations (TAC, MNR) define the tumoral or non tumoral nature of the pathology. We review some technical aspects of the common electrocochleographic practice, as actually is realised by the Bordeaux group; also, the different parameters of a retrocochlear pathologic response. In this group, the electrocochleography was necessary on 64 per 100 of the cases to obtain an electrophysiologic retrocochlear diagnostic.
ISSN:0001-6519