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为什么孩子容易患中耳炎发病率较高 - 上海老年人助听器|峰力奥迪康助听器上海助听器验配中心|宁耳听力
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婴幼儿时期,不但中耳结构不坚固,咽鼓管的发育也不完善,咽鼓管又短又直,管腔比较宽,咽鼓管的生理性狭窄处还形成,管道接近水平位,这样,咽鼓管的另一端即鼻咽部开口端就几乎与鼻底相平。由于咽鼓管的这一特点,婴儿患上呼吸道感染,鼻咽部的细菌很容易沿着咽鼓管咽口进入中耳,引起中耳炎症。由于这一特点,也使哺乳的婴儿易患中耳炎,如在平卧位给婴儿哺乳时,尤其是哺喂太多、太急,发生呛奶,可使奶液进入中耳。此外,新生儿生下来开始吸气和啼哭时,鼻咽部的X或X有可能经咽鼓管进入中耳,也可造成只有几天或一周的新生儿患急性中耳炎。为什么孩子容易患中耳炎发病率较高

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