Rahne T, Plontke S K
Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie, Universitätsklinikum Halle (Saale), Ernst-Grube-Str. 40, 06120, Halle (Saale), Deutschland.
HNO. 2016 Feb;64(2):91-100. doi: 10.1007/s00106-015-0087-5.
Various different hearing systems are available for device-supported hearing rehabilitation of patients with mixed hearing loss. Using the recently introduced objective comparison criterion "maximum output" (i.e., the maximum output level of a hearing device), the indications for different hearing devices can be compared.
This article reviews important terms such as gain, dynamic range, and maximum output level-all of which are relevant for the selection of a hearing device. The experimental part of this study compares all currently available hearing devices and determines the range of their indication with respect to the maximum bone-conduction hearing threshold.
The maximum frequency-specific output levels reported in the literature for the Baha Cordelle 2, the Sophono Alpha 2, and the Bonebridge (measured at the skull simulator), as well as those of the Codacs and the Soundbridge (in-vivo measurements) are compared to the maximum output levels given in the datasheets of the BP110 Power, the Baha Cordelle 2, the Bonebridge, the Codacs, the Ponto Pro Power, and the Sophono Alpha 2. Using appropriate correction factors, the maximum dynamic range and thus the maximum indication based on the bone-conduction threshold was determined.
In patients with mild sensorineural hearing loss, passive transcutaneous hearing or Bonebridge implants can achieve good audiological results. In the transition region to moderate hearing loss, percutaneous devices are applicable. Combined hearing loss with more pronounced sensorineural hearing loss is best treated with a Soundbridge or Codacs implant. In the latter case, the cochlear potential for speech recognition has to be explored and, where appropriate, cochlear implants considered as an alternative.
对于混合性听力损失患者的设备支持听力康复，有多种不同的听力系统可供选择。使用最近引入的客观比较标准“最大输出”（即听力设备的最大输出水平），可以比较不同听力设备的适应证。
本文回顾了增益、动态范围和最大输出水平等重要术语——所有这些都与听力设备的选择相关。本研究的实验部分比较了所有目前可用的听力设备，并根据最大骨导听力阈值确定其适应证范围。
将文献中报道的Baha Cordelle 2、Sophono Alpha 2和Bonebridge（在颅骨模拟器上测量）以及Codacs和Soundbridge（体内测量）的最大频率特异性输出水平与BP110 Power、Baha Cordelle 2、Bonebridge、Codacs、Ponto Pro Power和Sophono Alpha 2的数据表中给出的最大输出水平进行比较。使用适当的校正因子，确定最大动态范围，从而确定基于骨导阈值的最大适应证。
在轻度感音神经性听力损失患者中，被动经皮听力或Bonebridge植入可取得良好的听力学效果。在向中度听力损失的过渡区域，经皮设备适用。感音神经性听力损失更明显的混合性听力损失最好用Soundbridge或Codacs植入治疗。在后一种情况下，必须探索耳蜗的言语识别潜力，并在适当情况下考虑将人工耳蜗作为一种替代方案。
