在分析慢性活动性中耳炎乳突根治术失败的原因时,多数学者强调胆脂瘤的复发或乳突气房未能完全切除为其主要原因。相反,很少有人注意下鼓室和迷路下气房在慢性中耳炎中的作用。作者报告7例慢性中耳炎乳突根治术后复发的病例,临床检查和放射学检查提示下鼓室和迷路下气房有残存病变,其中5例做了第二次手术,术中见乳突腔上皮化好,无胆脂瘤复发和肉芽组织,病变限于下鼓室,清除下鼓室病变后干耳,术后随访5个月至8年无复发;另2例未行再次手术,但临床检查乳突腔干燥,仅下鼓室区有肉芽组织。此7例均为下 In the analysis of chronic active otitis media mastoidectomy failure reasons, most scholars emphasize the recurrence of cholesteatoma or mastoid atrial failure to completely remove the main reason. On the contrary, very few people pay attention to the role of the lower tympanic and the lost air chamber in chronic otitis media. The authors report 7 cases of chronic otitis media recurrence after radical mastectomy cases, clinical examination and radiological examination prompted remnants of the lower tympanic and labyrinthine lesions, of which 5 cases did a second surgery, the surgery see the mastoid cavity epithelium No recurrence of cholesteatoma and granulation tissue were observed. The lesion was limited to the lower tympanic cavity and the dry ear was removed after the tympanic cavity was removed. The patients were followed up for 5 months to 8 years without recurrence. The other 2 cases did not undergo reoperation but the clinical examination of the mastoid process Cavity dry, only under the tympanic area with granulation tissue. The seven cases are under