Jezequel J A
Service d'ORL et de Chirurgie Cervico-faciale, C.H.U. Morvan, Brest.
Ann Otolaryngol Chir Cervicofac. 1995;112(4):151-7.
Using conventional tonal audiometry, Joseph Zwislocki demonstrated in 1953 that the intensity of sound transfer to the opposite ear depends on the transductor (earphone). Interauricular attenuation is inversely proportional to the bone surface facing the earphone when all air transmission has been eliminated. In earlier work in 1982, we first concluded that this rule is applicable to auditory evoked potentials such as those used for conventional audiometry for unilateral cophosis. A TDH39 device transfers the sound to the contralateral ear with an attenuation of approximately 60 decibels, using the V wave latency as reference for calculating intensity. We verified the reality of Joseph Zwislocki's rule with newly available insert earphones. Surface contact with bone being smaller than with the TDH39, sound transfer to the opposite ear would logically be much more attenuated when air transmission is eliminated. The aim of this work was to determine sound transfer in 27 patients with unilateral cophosis undergoing conventional audiometry and to draw practical conclusions.
1953年，约瑟夫·兹维斯洛茨基使用传统的纯音听力测定法证明，声音传递到对侧耳朵的强度取决于换能器（耳机）。当所有空气传导都被消除时，耳间衰减与面向耳机的骨表面成反比。在1982年的早期研究中，我们首先得出结论，这条规则适用于听觉诱发电位，比如用于单侧突聋传统听力测定的那些电位。使用TDH39设备时，以V波潜伏期作为计算强度的参考，声音传递到对侧耳朵时会有大约60分贝的衰减。我们用新得到的插入式耳机验证了约瑟夫·兹维斯洛茨基规则的真实性。由于与骨的表面接触比使用TDH39时小，当空气传导被消除时，声音传递到对侧耳朵在逻辑上会有更大的衰减。这项研究的目的是确定27名单侧突聋患者在进行传统听力测定时的声音传递情况，并得出实际结论。
