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中耳积液是幼儿听力减退最常见的原因。积液稀薄、听力减退轻的轻型病例对药物反应好。而积液粘稠、听力减退重的慢性病例则需外科处理。这就需要在中耳积液早期了解所积液体的粘滞度。本文对60例病人95耳作了鼓膜切开放置通气管。术前5天内作了鼓室压测量及纯音测听。记录每例病人手术时有无液体,并判定其粘滞度。病人分为9岁以下(平均5岁)及10岁以上(平均50岁)两个年龄组。以气骨差>或<15dB分组。结果表明:(一)B型鼓室图伴气骨差>15dB者,9岁以下年龄组98％有液体;10岁以上则100％有液体。这种结合类型是在幼儿组(79％)
Middle ear fluid is the most common cause of hearing loss in young children. Thin fluid, mild hearing loss mild cases of good response to the drug. The thick fluid, severe hearing loss in chronic cases require surgical treatment. This requires early understanding of the fluid in the ear effusion viscosity. In this paper, 60 cases of 95 patients made tympanic membrane placed open ventilation tube. 5 days before the tympanometry and pure tone audiometry were made. Record each patient’s surgery with or without fluid, and determine the viscosity. The patients were divided into two groups: those under 9 (average 5 years) and those over 10 (average 50). Gap difference> or <15dB grouping. The results showed that: (a) B-type tympanogram with air-bone difference> 15dB, 98% of the age group below 9 years of age have a liquid; 10 years of age, 100% of the liquid. This combination is in the early childhood group (79%)