慢性化脓性 (坏死型、胆脂瘤型 )中耳炎是中耳传音结构破坏的主因 ,乳突根治术可因清理听骨病变而使听力更差 ,遗留易感染和霉菌生长的根治腔 ,药物无效而常需再次手术。乳突术后的听力恢复对中青年更重要 ,有各种中耳重建术式 ,但如同期行乳突术及成形术常遭失败。该作者提倡 Chronic suppurative (necrotic, cholesteatoma) otitis media is the main cause of destruction of the middle ear acoustic structure, mastoidectomy due to cleaning up the ossicles so that the hearing is worse, leaving the root cavity of susceptible and mold growth, drug Invalid and often need surgery again. Hearing recovery after mastoid surgery is more important for middle-aged and young people. There are various methods of middle ear reconstruction, but mastoid surgery and angioplasty often fail. The author advocates