Hülse M, Partsch C J
Laryngol Rhinol Otol (Stuttg). 1975 May;54(5):398-403.
Reffering to 92 expert evidences on the noise-deafness the signs are shown, in which the mining noise-deafness differs from the typical noise deafness in the metallurgical industry. In more than 80% of the cases a slope of the curve could be observed in the audiogram beginning at 125 cps. Therefore the hearing loss early impairs the ability to understand conversational speech. Only every second patient shows a positive result at the SISI-test; this is the reason, that the mining noise deafness frequently is misinterpreted. In these cases the cochlear hearing loss will be surely proved by the Langenbeck-audiogram and Békésy-audiogram. A secondary finding was the typical "mining ear-drum". These ear drums are bilaterally whitish, without reflex and thickened; they don't show any air-bone gap in the audiogram. The differences between the mining noise-deafness and the typical noise-induced hearing loss are explained by an additional baro-trauma which occurs, when the pitmans work at a depth of about 2000 feet.
参考92份关于噪声性耳聋的专家证据，结果表明，采矿噪声性耳聋与冶金行业典型的噪声性耳聋有所不同。在超过80%的病例中，听力图上从125 cps开始可观察到曲线斜率。因此，听力损失早期就会损害理解对话语音的能力。只有每两名患者中有一名在短增量敏感指数（SISI）测试中呈阳性结果；这就是采矿噪声性耳聋经常被误诊的原因。在这些病例中，朗根贝克听力图和贝凯西听力图肯定能证明存在耳蜗性听力损失。一个次要发现是典型的“矿工鼓膜”。这些鼓膜双侧呈白色，无反射且增厚；在听力图上未显示任何气骨导间距。采矿噪声性耳聋与典型的噪声性听力损失之间的差异可通过一种额外的气压创伤来解释，这种创伤发生在矿工在约2000英尺深度工作时。
