UNILATERAL SENSORINEURAL HEARING LOSS : AN ETIOLOGICAL STUDY
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The spectrum of diseases diagnosed and the protocol used in the investigation of 53 patients with unilateral sensorineural hearing loss is presented. The diagnostic tests found most useful in defining the site of the lesion were a combination of auditory brainstem response (ABR) and electrocochleography (ECoG). Laboratory investigations were important to diagnose the viral and vascular etiologies. We recommended vaccination against infectious diseases, which are responsible for this kind of hearing problem. Each patient with unilateral sensorineural hearing impairment. regardless of type of onset. regardless of how long it have been present and regardless of how apparent the etiology may be, should be evaluated to rule out an acoustic tumor.