書誌事項
- タイトル別名
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- Blind Sac Closure of the External Ear Canal in Cochlear Implant Surgery
- ガイジドウ ヘイサジュツ オ ヘイヨウ シタ ジンコウ ナイジ シュジュツレイ
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抄録
Care must be taken to identify cochleovestibular malformations and facial nerve anomalies in the patients undergoing cochlear implantation (CI). Canal wall down mastoidectomy gives excellent visibility and access during surgery in difficult temporal bone anatomy. We present herein on a case of CI surgery where cochleovestibular malformations existed, and adequate surgical access for implantation was obtained using canal wall down mastoidectomy with blind sac closure of the external ear canal. Indications for performing canal wall down mastoidectomy+CI surgery are as follows: chronic otitis media with persistent otorrhea, presence of a radical cavity/canal wall down open mastoid technique, cochlear ossification/obliteration, inner ear malformations and/or facial nerve anomaly, fracture of temporal bone with inner ear involvement and unfavorable anatomic conditions for posterior tympanotomy. In cases with chronic otitis media and persistent inflammation, canal wall down and complete mastoidectomy are mandatory to eradicate infected middle ear mucosa. Contraindications are as follows: Only one absolute contraindication is when electroacoustic stimulation with EAS-CI system is to be used. A relative contraindication is cases with active infection of the middle ear or cavity. The procedure can be staged. At the first stage, complete mastoidectomy with total eradication of the infection has to be performed. Canal wall down mastoidectomy with blind sac closure of the external ear canal combined with CI is a good procedure required in specific situations as mentioned above.
収録刊行物
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- 耳鼻咽喉科臨床
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耳鼻咽喉科臨床 108 (10), 755-761, 2015
耳鼻咽喉科臨床学会
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詳細情報 詳細情報について
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- CRID
- 1390282679249879680
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- NII論文ID
- 130005100968
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- NII書誌ID
- AN00107089
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- ISSN
- 18844545
- 00326313
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- NDL書誌ID
- 026781436
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
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- 使用不可