Dieroff H G
ENT-Clinic, University Jena, Germany.
J Am Acad Audiol. 1993 Sep;4(5):347-50.
The purpose of this investigation was to examine the effects of prolonged monaural amplification on the suprathreshold speech-recognition scores in the unaided ears of 46 persons with bilateral essentially symmetric and conductive hearing impairment and aided ears of 46 other persons with bilateral essentially symmetric and conductive hearing impairment. All subjects were less than 50 years of age. The suprathreshold speech-recognition loss scores for taped monosyllabic German PB words were analyzed. The frequency distribution of pure-tone averages was essentially equivalent for the aided and unaided ears. Although the magnitude of hearing impairment was essentially equivalent for the aided and unaided ears, the unaided ears tended to have large suprathreshold speech-recognition loss scores than the aided ears. The results are discussed in relation to theories of auditory deprivation and inactivity from monaural amplification. The clinical significance of these findings in relation to ear surgery is also discussed.
本研究的目的是，考察长期单耳放大对46例双侧基本对称的传导性听力障碍患者未助听耳以及另外46例双侧基本对称的传导性听力障碍患者助听耳的阈上言语识别得分的影响。所有受试者年龄均小于50岁。分析了录制的单音节德语PB词的阈上言语识别损失得分。助听耳和未助听耳的纯音平均频率分布基本相同。虽然助听耳和未助听耳的听力损失程度基本相同，但未助听耳的阈上言语识别损失得分往往比助听耳大。结合听觉剥夺理论和单耳放大导致的失活对结果进行了讨论。还讨论了这些发现与耳部手术相关的临床意义。
