Helbig Silke, Baumann Uwe
Adv Otorhinolaryngol. 2010;67:81-87. doi: 10.1159/000262599. Epub 2009 Nov 25.
BACKGROUND/AIMS: Subjects with sufficient residual low-frequency hearing after cochlear implantation can benefit from electric acoustic stimulation (EAS). A combined speech processor (MED-EL DUET), which incorporates a hearing aid and a speech processor in one device, was designed especially for this group of patients. The present report evaluates the influence of postoperative pure tone audiometric results on personal acceptance of the DUET system in EAS users.
Fifteen subjects underwent cochlear implantation for EAS and hearing preservation was achieved at least partially. All were fitted with the DUET EAS hearing system. Personal acceptance (measured by whether or not they were using the DUET system) in combination with audiometric results were investigated over time.
The combined processor was accepted by the majority of the subjects. However, those who had initial or further loss of residual hearing of more than 55 dB at 125 Hz or more than 70 dB at 250 Hz and 98 dB at 500 Hz rejected the DUET device.
The combined processor enables subjects with sufficient hearing preservation in the low-frequency range up to 500 Hz to benefit from EAS. Acceptance is dependent on the pure tone audiometric outcomes after surgery and can vary with hearing loss progression.
背景/目的：人工耳蜗植入术后仍保留足够低频听力的患者可从电声刺激（EAS）中获益。一种将助听器和言语处理器集成于一体的组合式言语处理器（MED-EL DUET）专为这类患者设计。本报告评估了术后纯音听力测定结果对EAS使用者对DUET系统个人接受度的影响。
15名患者接受了用于EAS的人工耳蜗植入手术，且至少部分保留了听力。所有患者均佩戴了DUET EAS听力系统。随着时间推移，研究了个人接受度（通过是否使用DUET系统来衡量）与听力测定结果之间的关系。
大多数受试者接受了这种组合式处理器。然而，那些在125Hz时残余听力初始或进一步损失超过55dB，或在250Hz时超过70dB以及在500Hz时超过98dB的受试者拒绝使用DUET设备。
这种组合式处理器使低频范围（高达500Hz）内听力保留足够的受试者能够从EAS中获益。接受度取决于术后纯音听力测定结果，并且可能随听力损失进展而变化。
