再発性真珠腫症例の検討

DOI 被引用文献5件 参考文献14件

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  • A study on recurrent cholesteatoma.

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Thirty nine ears of recurrent cholesteatoma after closed tympnoplasty were reviewed. The mean period between the previous operation and the reoperation was 5.3 years with a range from 2 to 20 years. The mean age at the reoperation was 41.9 years old with a range from 8 to 68 years old. The opposite ear was normal in twenty five ears (64.1%), cholesteatoma in 10 ears (25.6%), otitis media with effusion in 2 ears (5.1%), adhesive otitis media in one ear (2.6%) and chronic suppurative otitis media in one ear (2.6%). In the reoperation, closed tympanoplasty was performed in 13 ears (33.3%), open tympanoplasty in 18 ears (46.2%), total mastoid obliteration in 4 ears (10.3%) and partial mastoid obliteration in 4 ears (10.3%). No cases showed common findings of recurrent cholesteatoma in the previous operation. Recurrent cholesteatoma ocurred again in 2 ears (15.4%) and a deep retraction pocket in 2 ears (15.4%) of 13 ears operated on with closed tympanoplasty in the reoperation. Recurrent cholesteatoma should be operated with open tympanoplasty or mastoid obliteration technique because of the high risk of recurrent cholesteatoma after closed tympanoplasty. Cholesteatoma in the only hearing ear, bilateral ears, aged patients or with medical complications should be operated on with open tympanoplasty in the first operation. To evaluate operative results of closed tympanoplasty needs at least 6 years, because the mean periods between the previous operation and the reoperation was 5.3 years.

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