Eur Arch Otorhinolaryngol:双侧骨传导设备的声音定位

2021-05-22 AlexYang MedSci原创

经皮骨传导装置(BCD)是一种成熟的听力康复方法,适用于传导性或混合性听力损失的患者,在手术或传统助听器改善听力效果不好的情况可以选择使用。由于颅内衰减小,一个BCD对两个耳蜗的刺激几乎相同,双侧BC

经皮骨传导装置(BCD)是一种成熟的听力康复方法,适用于传导性或混合性听力损失的患者,在手术或传统助听器改善听力效果不好的情况可以选择使用。由于颅内衰减小,一个BCD对两个耳蜗的刺激几乎相同,双侧BCD的有效性一直受到质疑。然而,早在1991年,Hamann等人就证明了双侧传导性听力损失(BCHL)患者使用第二台BCD的听觉益处。随后,在1995年,BCD的双侧应用被逐渐引入。从那时起,一些研究表明了双侧使用BCD能有效地改善BCHL患者在噪音中的言语理解、与听力有关的生活质量和声音定位。然而,在许多情况下,BCHL患者仍然是单侧植入的。

近期,研究人员调查了双侧安装有骨传导装置(BCDs)患者的声音定位情况。此外,还探索了提高定位准确性的且适用于临床的方法。

研究纳入了15名双侧安装经皮BCD的成年人。在基线时,测量了声音定位、(无)辅助纯音阈值、设备使用、语言、空间和听力质量量表(SSQ)和York听力相关生活质量(YHRQL)问卷。研究人员将优化声音定位的设置添加到BCDs中。在1个月后,评估声音的定位,并在视觉反馈下用一系列的声音进行定位练习。在3个月时,确定定位表现、设备使用和问卷调查的分数。

在基线时,1名先天性听力损失的病人表现出近乎优秀的定位能力,另外4名病人(3名为先天性听力损失)对声音的定位(相当)准确。7名后天性听力损失的患者能够对声音进行侧向定位,即识别声音是来自左侧还是右侧,但不能准确地对声音进行定位。3名患者(其中1名为先天性听力损失)甚至不能正确地进行声音的侧向定位。在3个月时,所有病人的SSQ分数明显提高。定位性能、设备使用和YHRQL分数在各次测量之间没有明显的差异。

声音定位的刺激反应分析

综上所述,大多数双侧BCD使用者能够对声音进行侧向定位,1/3的人能够对声音进行准确的定位(相当)。随着时间的推移,定位表现优秀且稳定。另外,优化设备设置和简短的练习课程并没有改善声音定位表现。

原始出处:

Coosje J I Caspers, A M Janssen, M J H Agterberg et al. Sound localization with bilateral bone conduction devices. Eur Arch Otorhinolaryngol. May 2021

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    2021-06-01 SR~young海东

    科技进步,医疗发展

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    2021-05-29 SR~young海东

    医学进步与发展

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    2021-05-22 ms4000000364276398

    学习

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