01/26/2501/26/25耳聋HearinglossHearinglossGNResoundAsiaTradepromotion&TrainingDept.GNResoundAsiaTradepromotion&TrainingDept.第一页，共三十页。第一页，共三十页。22第二页，共三十页。第二页，共三十页。33听力损失的程度第三页，共三十页。第三页，共三十页。44第四页，共三十页。第四页，共三十页。55按耳聋发病的时间分类（二）第五页，共三十页。第五页，共三十页。66第六页，共三十页。第六页，共三十页。77第七页，共三十页。第七页，共三十页。88ConductivehearinglossConductivehearingloss传音性（传导性、蜗前聋）传音性（传导性、蜗前聋）SensorineuralHearingSensorineuralHearinglossloss感音神经性（蜗性、蜗后聋）感音神经性（蜗性、蜗后聋）MixedhearinglossMixedhearingloss混合性混合性CentralHearingCentralHearinglossloss中枢性（蜗后聋）中枢性（蜗后聋）第八页，共三十页。第八页，共三十页。99(fābìng)(fābìng)第九页，共三十页。第九页，共三十页。1010-10-1000101020203030404050506060707080809090100100110110120120dBHearingThresholdLeveldBHearingThresholdLevel12512525025050050015003000150030006000600010001000200020004000800040008000RRUnmaskedUnmaskedLLUnmaskedUnmaskedxxOO听力图听力图(lìtú)(lìtú)特点特点传导性聋传导性聋ConductivelossConductivelossOOOOxxOOxxOOxxxxOOOOxxxx<<>><><><><><><><><>AirBoneGapAirBoneGap<<>>RBoneRBoneLBoneLBone传导性聋传导性聋(CONDUTIONHEARINGLOSS)(CONDUTIONHEARINGLOSS)•气导异常气导异常（一般不超过（一般不超过60dB60dB））•骨导正常骨导正常(zhèngcháng)(zhèngcháng)•气骨导间距大于等于气骨导间距大于等于10dBHL(ABG10dBHL(ABG≥10dBHL)≥10dBHL)•见于外耳及中耳疾患见于外耳及中耳疾患第十页，共三十页。第十页，共三十页。1111特点：第十一页，共三十页。第十一页，共三十页。1212ConductivelossConductiveloss传导性耳聋传导性耳聋病因病因外耳道疾病外耳道疾病(jíbìng)(jíbìng)TheexternaleardiseaseTheexternaleardisease：：耳部畸形耳部畸形CongenitalmalformationsCongenitalmalformations耵聍栓塞耵聍栓塞ImpactedearwaxImpactedearwax外耳道炎外耳道炎InflammationoftheearcanalInflammationoftheearcanal第十二页，共三十页。第十二页，共三十页。1313ConductivelossConductiveloss传导性耳聋传导性耳...
