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Audiologic measure in Meniere′s disease

Zhong Naichuan, Wang Hongtian. Union Hospital Tonji Medical University, 430022  
To determine some audiologic phenomena of Meniere′s disease before and after ingestion of dehydration agent and evaluate its diagnostic value, 48 ears of Meniere's disease, 40 ears of other vertigo disease and 40 normal ears were investigated. The measures were undertaken before and after glyceral or urea ingestion, which included threshold of pure tone audiometry, peak static acoustic admittance(Ya) and conductance(Ga) at probetone signal of 678 Hz, peak compensate static admittance(ΔY) and conductance(ΔG) at reasonace frequency, -SP/AP, and width of SP-N1 in ECochG. Results showed that abnormal rates of glyceral group and urea group were similar, and there was no significant statistical difference. So these two groups were combined together as one in statistics. The rate of totally abnormal ears were 17/32 in seven measures. Abnormal rates of dehydration test were: pure audiometry 66.67%, Ga 62.50%, -SP/AP 52.08%, width of SP-AP N1 66.67%. χ 2 test showed no significance statistical difference among these results. It indicated that these measures had same diagnostic value for the Meniere's disease. The shift value of G a and ΔG of dehydration test might be as the objective diagnostic methods of Meniere′s disease.
【CateGory Index】: R764.33
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