Tympanicmembraneperforations are common sequelae of middle ear disease. Sound transmission through middle ears with tympanicmembraneperforations is not well understood.
鼓膜穿孔是一种非常普遍的中耳疾病，其对人中耳传声的影响并没有得到很全面的研究。
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Conclusion Endoscope is easy to manipulate with a clear operation field, and can, therefore, be used in myringoplasty for all kinds of tympanicmembraneperforations using sandwich technique.
结论耳内镜使用方便、术野清晰，夹层法适合于各种类型的鼓膜穿孔。
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Objective To study the effect of epidermal growth factor (EGF) on promoting the healing of tympanicmembrane (TM) perforations and whether it affects the inner ear function.