小児の耳鳴に関する臨床的研究

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  • Clinical Study of Tinnitus in Children.

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Four hundred sixty-three children aged 5 to 15 years old, visited the Department of Otolaryngology, Iwate Medical University during the past three years, were examined by conventional audiometry. Presence of subjective tinnitus was clearly recorded, and the patients were clinically studied<br>The results were as follows;<br>1) Of 463 children, 30 patients presented with continuous tinnitus (6.5%) and 160 with intermittent tinnitus (34.5%).<br>2) The incidence of tinnitus increased with age, in both continuous and intermittent tinnitus.<br>3) Tinnitus was observed more frequently in the patients with hearing impairment, and continuous tinnitus was observed in those with perceptive hearing impairment, and intermittent tinnitus was observed in those with conductive hearing impairment.<br>4) Mean hearing level in the patients with continuous tinnitus showed to be 8.9dB higher than that with intermittent tinnitus.<br>5) Onomatopoetic expression of tinnitus in 18 cases were relatively few in its quality.

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