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儿童分泌性中耳炎(OME)是以中耳积液(包括浆液、黏液、浆-黏液)及听力下降为主要特征的中耳非化脓性炎性疾病。本病较常见,在儿童中的发病率比成人高,是引起儿童听力下降的重要原因之一[1]。畸变产物耳声发射(DPOAE)是耳蜗同时受到2个具有一定频比关系的初始纯音刺激时,由于基底膜的非线性调制作用而产生的一系列畸变信号,经听骨
OME is a non-purulent inflammatory disease of the middle ear characterized mainly by the presence of middle ear effusion (including serous, mucus, plasma-mucus) and hearing loss. The disease is more common in children than in adults, the incidence is one of the important causes of hearing loss in children [1]. Distortion product otoacoustic emissions (DPOAE) is a series of distorted signals generated by the non-linear modulation of the basement membrane when the cochlea is subjected to the initial pure tone stimulation with a certain frequency ratio at the same time.