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应用鼓室探查方法，对１１例传导性耳聋进行诊断与处理，有效地提高了听力．术后随访１～３年，气导平均提高２５ｄＢ．骨气导间距在１５ｄＢ之内．
Application of tympanometry method, 11 cases of conductive deafness diagnosis and treatment, effectively improve the hearing. Follow-up 1 to 3 years after surgery, air conduction increased by 25dB on average. Bone conduction distance within 15dB.