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    HNO. 1990 Feb;38(2):50-5.

    [Neuro-otologic criteria in the diagnosis of tumor-induced hearing disorders. Studies of 300 patients with acoustic neuroma].

    [Article in German]

    Source

    Klinik für HNO-Heilkunde, Medizinischen Hochschule Hannover.

    Abstract

    Recently, costly technical procedures have been used for the diagnosis of a retrocochlear hearing loss. Electrophysiological methods such as ERA, electrocochleography and promontory tests, and imaging procedures such as CT and MRI have been widely used. Here we demonstrate the diagnostic value of conventional audiometry in retrocochlear lesions. As the clinical audiometric picture shows, a retrocochlear lesion is based on electrophysiological conduction phenomena. The threshold tone decay, absence of stapedius reflex, reduced speech discrimination and ERA findings with electric response decay and synchronization disorders within the brain stem are particularly significant.

    PMID:
    2318668
    [PubMed - indexed for MEDLINE]

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