Volume 11, Issue 4 (2-1998)                   Med J Islam Repub Iran 1998 | Back to browse issues page

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KAVIANI M, JAFARY A. TRANSTYMPANIC ELECTROCOCHLEOGRAPHY FOR EVALUATION OF MENIERE'S DISEASE. Med J Islam Repub Iran 1998; 11 (4) :285-287
URL: http://mjiri.iums.ac.ir/article-1-1067-en.html
TRANSTYMPANIC ELECTROCOCHLEOGRAPHY FOR EVALUATION OF MENIERE'S DISEASE
MASOOD KAVIANI , ABDOLHOSSEIN JAFARY
From the Department of Otolaryngology and Audiology, Shiraz University of Medical Sciences, Shiraz, Islamic Republic of Iran.
Abstract:   (3635 Views)
35 patients with unilateral sensorineural impairment and hearing levels within the normal range in the opposite ears were investigated by bilateral transtympanic electrocochleography (TIECoG). Only 19 patients (54%) satisfied the criteria for Meniere's disease and 16 patients (46%) showed sensorineural impairment due to other etiologies. Clinical studies have focused exclusively on the a mplitude ratio of the summating potential (SP) and the action potential (AP) derived from alternating polarity click responses (Le., SP/AP). In only clinically defined ears with Meniere's disease have abnormally large SPs been found. Neither normal ears nor sensorineural impaired ears of other etiologies exhibited abnormal SPs, hence we used normal ears as a control in this study.
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Type of Study: Original Research | Subject: Otorhinolaryngology
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