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近年文献对中耳粘膜有严重病变、听骨破坏及胆脂瘤者多主张分两期进行手术。Rambo(1961)提出,第一期先作改良乳突根治术,并用石蜡作鼓室模型,第二期行开窗术。Tabb(1963)甚至主张分三期手术,第一期控制炎症及清除胆脂瘤,第二期修补鼓膜,第三期重建听骨链。作者主张乳突根治与鼓室成形一期完成(包括鼓室有严重病变者),这个主张是以对手术远期效果的观察为依据。作者手术病例分为两组。第一组:300耳,均为干耳,其病变为鼓膜中央小穿孔、粘连性中耳炎、鼓室硬化症、胆脂瘤、曾
In recent years, the literature on the middle ear mucosa have serious lesions, and bone sore destruction of cholesteatoma are advocated in two phases of surgery. Rambo (1961) suggested that the first phase of the first modified mastoidectomy and paraffin for tympanic model, the second phase of window opening. Tabb (1963) even advocated a three-phase surgery, the first phase of inflammation and clearance of cholesteatoma, the second phase repair tympanic membrane, the third phase reconstruction ossicular chain. The author argues that mastoidectomy and tympanoplasty are completed in one phase (including those with severe lesions in the tympanic cavity), a claim that is based on the observation of the long-term effect of surgery. The authors were divided into two groups. The first group: 300 ears, are dry ears, the lesion is a small central perforation of the tympanic membrane, otitis media, tympanosclerosis, cholesteatoma, had