目的：确定慢性化脓性中耳炎(CSOM)耳源性并发症的发生率及其处理方法。

Objective: the objective of this is to determine the incidence of otogenic complications of chronic suppurative otitis media (CSOM) and its management.

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目的：了解慢性化脓性中耳炎（CSOM ）患耳脓性分泌物的细菌分布及药物敏感性，以指导临床用药。

Objective:To understand bacteriology of chronic suppurative otitis media (CSOM) and drug sensitivity of isolated bacteria for better treatment of CSOM.

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目的探讨缩短慢性化脓性中耳炎改良乳突根治术后干耳时间。

Objective To study how to decrease the dry ear time after modified radical mastoidectomy for chronic suppurative otitis media.

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