中耳真珠腫による顔面神経麻痺症例の検討

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  • Facial Nerve Paralysis Due to Middle Ear Cholesteatoma
  • 臨床 中耳真珠腫による顔面神経麻痺症例の検討
  • リンショウ チュウジ シンジュ シュ ニ ヨル ガンメン シンケイ マヒ ショウレイ ノ ケントウ

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Facial nerve paralysis associated with middle ear cholesteatoma, although well known, is only occasionally encountered and its clinical features and management have been evaluated in only a few studies. We studied its clinical features associated with facial paralysis.<br> Subjects numbered 20 [15 males and 5 females] from 3-82 years old (mean: 42.6 years) with facial nerve paralysis due to middle ear cholesteatoma undergoing surgery between 1990 and 2008. After cholesteatoma lesion resection, a limited area of the fallopian canal in which facial nerve edema or redness was evident was opened, although the epineural sheath was not incised for nerve decompression.<br> Initial paralysis was incomplete in 13 (65%). Paralysis onset was sudden in 16 (80%). The facial paralysis outcome was favorable in 14 (70%).<br> Facial paralysis outcome was largely favorably, although poor outcomes were observed in cases with petrosal cholesteatoma and in those undergoing surgery ≥2 months after paralysis onset.<br>

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