2014 年 73 巻 6 号 p. 485-495
In this review, the authors introduce the international guidelines on the clinical application of cervical vestibular evoked myogenic potential (cVEMP) published in 2014, with an added commentary. Protocols recommended in these guidelines are basically the same as those of cVEMP recording conducted in Japan. The guidelines stated that both air conducted sound (ACS) and bone conducted vibration (BCV) can be used as stimulation but that BCV can be used in addition to ACS, and not to replace it. For ACS the most effective frequencies are between 400 and 800 Hz below safe peak intensity levels (e.g., 140 dB SPL). The number of sweeps averaged should be between 100 and 250 per run. Raw amplitude corrected by the level of background muscle activities narrows the range of normal values. The authors suggested that these guidelines should be taken into consideration when performing any VEMP study.