Test-retest reliability and age-related characteristics of the ocular and cervical vestibular evoked myogenic potential tests.
Test-retest reliability and age-related characteristics of the ocular and cervical vestibular evoked myogenic potential tests.
复制标题
DOI：
10.1097/mao.0b013e3181e3d60e
复制
发表时间：
2010-07
期刊：
影响因子：
--
通讯作者：
Carey JP
中科院分区：
文献类型：
--
作者：
Nguyen KD;Welgampola MS;Carey JP
Objective:To determine the test-retest reliability and age-related trends of the cervical and ocular vestibular evoked myogenic potential (cVEMP and oVEMP, respectively) responses to air-conducted sound and bone-conducted vibration stimulation.Study Design:Prospective study.Setting:Tertiary referral center.Patients:Fifty-three healthy adults with no hearing or vestibular deficits.Intervention (s):All subjects underwent cVEMP and oVEMP testing in response to sounds (0.1-ms clicks and 500-Hz tone bursts) and vibration (midline forehead taps at the hairline, Fz, with a reflex hammer and a Brüel & Kjær Mini-Shaker Type 4810). Twelve subjects underwent an additional testing session that was conducted at a mean of 10 weeks after the first one.Main Outcome Measure (s):Test-retest reliability for VEMP response parameters (latency, peak-to-peak amplitude, and asymmetry ratio) were assessed using the intraclass correlation coefficient (ICC).Results:oVEMP amplitudes had excellent test-retest reliability (ICC> 0.75) for all 4 stimuli; cVEMP amplitudes had excellent reliability for hammer taps and fair-to-good reliability for other stimuli. oVEMP asymmetry ratios had excellent reliability for clicks and fair-to-good reliability (ICC= 0.4-0.75) for other stimuli; cVEMP asymmetry ratios had fair-to-good reliability for clicks and hammer taps. Older subjects (> 50 years old) were found to have significantly decreased cVEMP amplitudes in response to clicks, tones, and taps with a Mini-Shaker and significantly decreased oVEMP amplitudes in response to clicks, tones, and taps with a reflex hammer. No age-related changes were found for latencies or asymmetry ratios.Conclusion:Overall, oVEMP response parameters demonstrated better test-retest reliability than cVEMP response parameters, but oVEMPs and cVEMPs had similar age-related changes.
