https://scholars.lib.ntu.edu.tw/handle/123456789/628252
Title: | Effects of repetition rate of bone-conducted vibration on ocular and cervical vestibular-evoked myogenic potentials | Authors: | CHIH-MING CHANG Cheng, Po Wen Wang, Shou Jen YI-HO YOUNG |
Keywords: | Air-conducted sound (ACS) | Bone-conducted vibration (BCV) | Cervical vestibular-evoked myogenic potential (cVEMP) | Ocular vestibular-evoked myogenic potential (oVEMP) | Vestibulo-ocular reflex (VOR) | Issue Date: | 1-Dec-2010 | Publisher: | ELSEVIER IRELAND LTD | Journal Volume: | 121 | Journal Issue: | 12 | Start page/Pages: | 2121 | Source: | Clinical Neurophysiology | Abstract: | Objective: This study applied bone-conducted vibration (BCV) stimuli at various repetition rates to investigate the effects of repetition rate on both ocular and cervical vestibular-evoked myogenic potentials (oVEMPs and cVEMPs). Methods: Twenty-five healthy subjects underwent oVEMP tests in BCV mode at repetition rates of 1, 5, 10, 20, 30 and 40. Hz. The optimal repetition rates (5, 10 and 20. Hz) for oVEMPs were also adopted to elicit cVEMPs, and 20. Hz stimuli were further evaluated in pathological ears. Results: At repetition rates of 1, 5, 10, 20, 30 and 40. Hz, the prevalence of clear oVEMPs were 100% in groups of 5, 10 and 20. Hz, with no significant differences in the mean nI latency, but the mean nI-pI amplitude of the 20. Hz group showed significantly larger. For the BCV-cVEMPs, 5, 10 and 20. Hz stimuli yielded similar information. Clinically, the BCV mode at 20. Hz stimuli was also appropriate for evaluating VEMPs in ears of vestibular schwannoma. Conclusions: The BCV mode at a repetition rate of 20. Hz is recommended for the mass detection of VEMPs. Significance: Eliciting VEMPs in BCV mode using 20. Hz stimuli takes a short time and may trigger a high prevalence with large amplitude. © 2010 International Federation of Clinical Neurophysiology. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/628252 | ISSN: | 13882457 | DOI: | 10.1016/j.clinph.2010.05.013 |
Appears in Collections: | 醫學院附設醫院 (臺大醫院) |
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