Boys Town National Research Hospital, Omaha, NE.
University of Nebraska-Lincoln, Lincoln, NE.
Ear Hear. 2021 Sep/Oct;42(5):1328-1337. doi: 10.1097/AUD.0000000000001024.
Recently developed, the Radioear B81 bone oscillator allows for higher bone conduction vibration output; however, normative data are lacking regarding its use in vestibular-evoked myogenic potential (VEMP) testing. The purpose of this study was to examine the effect of age on cervical and ocular VEMP (c- and oVEMP) responses using the B81 and to compare with air conduction stimuli (ACS) and impulse hammer (IH) VEMP response characteristics.
c- and oVEMP were completed with ACS, B81, and IH stimuli in healthy participants (age range = 10 to 87 years, n = 85).
Regardless of stimulus type, c- and oVEMP amplitudes and response rates decreased with age. For cVEMP response rates, ACS performed better or equal to B81, which was superior to the IH. For cVEMP corrected amplitude, ACS had significantly higher amplitudes compared with B81 and IH. There was no difference in cVEMP corrected amplitude between B81 and IH. For oVEMP, response rates were comparable between stimuli with the largest disparity in response rates occurring in the oldest groups where IH outperformed both ACS and B81. For oVEMP amplitude, IH had significantly higher amplitudes compared with B81 and ACS. There was no difference in oVEMP amplitude between B81 and ACS.
Age significantly affected c- and oVEMP amplitudes regardless of stimulus type (ACS, B81, IH). All stimuli are appropriate for eliciting c- and oVEMP in the young individuals. While ACS resulted in higher cVEMP corrected amplitudes, either ACS or B81 are appropriate for older individuals. However, for oVEMPs, higher response rates and larger amplitudes were noted for IH followed by B81 and ACS. Overall, the B81 performed well across the lifespan for c- and oVEMPs and may be a reasonable bone conduction vibration option for patients with absent ACS VEMPs, but at this time is not recommended as a replacement to ACS.
最近开发的 Radioear B81 骨振荡器可提供更高的骨传导振动输出；然而，其在前庭诱发肌源性电位（VEMP）测试中的使用缺乏规范数据。本研究旨在探讨年龄对颈椎和眼 VEMP（c- 和 oVEMP）反应的影响，并比较 B81 与空气传导刺激（ACS）和脉冲锤（IH）VEMP 反应特征。
在健康参与者中（年龄范围为 10 至 87 岁，n=85），使用 ACS、B81 和 IH 刺激完成 c- 和 oVEMP。
无论刺激类型如何，c- 和 oVEMP 的幅度和反应率随年龄增长而降低。对于 cVEMP 反应率，ACS 的表现优于 B81，B81 优于 IH。对于 cVEMP 校正幅度，ACS 的幅度明显高于 B81 和 IH。B81 和 IH 之间的 cVEMP 校正幅度没有差异。对于 oVEMP，各刺激之间的反应率相当，在最年长的组中，反应率的差异最大，IH 优于 ACS 和 B81。对于 oVEMP 幅度，IH 的幅度明显高于 B81 和 ACS。B81 和 ACS 之间的 oVEMP 幅度没有差异。
无论刺激类型（ACS、B81、IH）如何，年龄都会显著影响 c- 和 oVEMP 的幅度。所有刺激都适合在年轻人中诱发 c- 和 oVEMP。虽然 ACS 导致更高的 cVEMP 校正幅度，但 ACS 或 B81 均适合年龄较大的个体。然而，对于 oVEMPs，IH 随后是 B81 和 ACS，可获得更高的反应率和更大的幅度。总体而言，B81 在整个生命过程中都能很好地进行 c- 和 oVEMPs，并且对于缺乏 ACS VEMPs 的患者可能是一种合理的骨传导振动选择，但目前不建议替代 ACS。
