Preoperative and postoperative bone conduction thresholds in patients with cholesteatoma

Preoperative and postoperative bone conduction (BC) thresholds of 34 patients with cholesteatoma were reviewed. Postoperatively, the mean value of the BC thresholds was slightly better. When the subjects were divided into groups related to the pathological changes in the middle ear, BC thresholds we...

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Bibliographic Details
Published inOTOLOGIA FUKUOKA Vol. 38; no. 3; pp. 225 - 229
Main Authors HATA, Yuuko, KOMATSUZAKI, Atsushi, OKUNO, Hideji
Format Journal Article
LanguageJapanese
Published JIBI TO RINSHO KAI 20.05.1992
Subjects
真珠腫性中耳炎
骨導値
鼓室形成術
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ISSN0447-7227
2185-1034
DOI10.11334/jibi1954.38.3_225

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Summary:Preoperative and postoperative bone conduction (BC) thresholds of 34 patients with cholesteatoma were reviewed. Postoperatively, the mean value of the BC thresholds was slightly better. When the subjects were divided into groups related to the pathological changes in the middle ear, BC thresholds were markedly improved in the ossicular fixation group. The BC thresholds of 2000kHz significantly improved in the ossicular discontinuation, or stapes fixation group. Mechanisms for these changes were analyzed based on previously published data describing the relationship between the BC thresholds and pathological changes in the middle ear. Correction of the sound transmission system seemed to improve the BC thresholds.
ISSN:0447-7227
2185-1034
DOI:10.11334/jibi1954.38.3_225