Audiometric Considerations In Stapes-Mobilization Surgery

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Abstract
Stapes-mobiliza-tion surgery presents a less distinct prognosis for recovery of loss of hearing than fenestration. A case is presented calling attention to the fact that successful surgery on an ear with mixed deafness resulted in a marked loss of speech discrimination. Complete closure of the air-bone gap left the patient with a high-frequency nerve loss, and resultant difficulty in discriminating consonant sounds. Methods for estimating the "Carhart notch" and predicting post-operative hearing levels are sorely needed.

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