The effect of stimulation rate on cervical vestibular evoked myogenic potential quality

Obeidat, Faten Saeed; Bell, Steven L.

doi:10.1016/j.cnp.2017.11.001

Cited by 4 publications

(2 citation statements)

References 7 publications

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“…Each recording consisted of 150 repeats of an 8 ms short tone-burst. A repetition rate of 10 Hz was fixed for all measurements, so total duration for each recording was 15 s. The rate of 10 Hz was found to be the optimal trade-off between recording time and response detection for the majority of subjects in our previous study (Obeidat and Bell 2018). The order of presentation of stimulus intensities was randomised among subjects.…”

Section: Cvemp Recordingmentioning

confidence: 99%

Comparing the sensitivity and specificity of cervical vestibular-evoked myogenic potentials and electrocochleography in the diagnosis of Ménière’s disease

Obeidat

Bell

2019

International Journal of Audiology

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Objective: To compare the sensitivity and specificity of objective cervical vestibular-evoked myogenic potential (cVEMP) tuning curves and electrocochleography (ECochG) for the diagnosis of M eni ere's disease (MD). Design: Sensitivity and specificity were calculated from 95% normative ranges of 500 Hz cVEMP threshold and ECochG SP/AP amplitude ratios. Measures: Extra-tympanic ECochG testing to 90 dB nHL clicks and cVEMP threshold tuning curves (250-1000 Hz). Study sample: We tested 15 patients (30 ears) diagnosed with definite bilateral MD based on the clinical criteria proposed by the American Academy of Otolaryngology Head and Neck surgery, 1995 (assumed gold standard) and 20 controls. Results: 500 Hz cVEMP threshold was the most promising parameter to differentiate MD ears from controls. cVEMP and ECochG showed high specificity (83.3 and 100%, respectively) and low to moderate sensitivity (22.2 and 71.4%) for long term MD. ECochG sensitivity increased to 89% during a symptomatic period, compared to 33% for cVEMP. However, ECochG can be difficult to schedule during symptomatic periods. Sensitivity of cVEMP for the diagnosis of MD appears limited. Conclusions: ECochG has higher sensitivity than cVEMP in the diagnosis of M eni ere's patients, but the ECochG SP/AP amplitude ratio measure is not perfect for the diagnosis of MD.

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Section: Cvemp Recordingmentioning

confidence: 99%

Comparing the sensitivity and specificity of cervical vestibular-evoked myogenic potentials and electrocochleography in the diagnosis of Ménière’s disease

Obeidat

Bell

2019

International Journal of Audiology

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“…If responses fall at a latency range outside of the signal-variance time window, then F sp values may be lowered and its performance comprised (Cone-Wesson et al 2002). Although two studies have applied F sp to cVEMPs (Obeidat & Bell 2018, 2019), only Obeidat and Bell (2019) reported a time window used to quantify signal variance, 10 to 30 msec, and there was no published evaluation of different signal windows to compare performance across different latency regions. One study applied F sp to oVEMPs and reported a signal time window of 30 to 50 msec, but the stimulation methods were different than those used clinically, and latencies were longer than typical onset responses (Parker-George et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Evaluating Fixed Single-Point Parameters When Applied to Vestibular Evoked Myogenic Potentials: The Effect of Single Point and Signal Window

Romero,

Clinard,

Zalewski

et al. 2024

Ear &Amp; Hearing

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Objectives: Several studies have applied a common objective detection algorithm (fixed single point [F sp]) for detection of the vestibular evoked myogenic potential (VEMP). However, fundamental parameters of F sp, such as establishing the location and duration of a signal window, have not been examined. In addition, F sp criterion values used for response detection have not been established for cervical VEMPs (cVEMPs) or ocular VEMPs (oVEMPs). The purpose of this article was to investigate the effect of various single points and signal windows on F sp, as well as determining F sp criteria to determine response presence for cVEMP and oVEMP in a group of young healthy participants. Design: Twenty young healthy adults under the age of 30 and with no history of hearing or balance concerns were enrolled in the study protocol. Air-conducted cVEMPs and oVEMPs were evoked using 500 Hz tone bursts at 123 dB pSPL recorded at a fixed electromyography activation of 50 µV for cVEMPs and 35° gaze angle for oVEMPs. Responses were analyzed off-line using visual and objective detection. F sp was applied to cVEMPs and oVEMPs using a range of single points and signal windows. Results: Noise variance was lowest for cVEMPs at the latency of P1, and for oVEMPs noise variance was not significantly different across the single-point latencies. On average, extending the length of the signal window lowered the F sp value in cVEMPs and oVEMPs. An F sp value of 2.0 was chosen as the criterion cutoff associated with the 95th percentile during no-response conditions using group data for cVEMPs and oVEMPs, respectively. F sp values for cVEMPs and oVEMPs were not significantly different from each other. Discussion: This study established single-point latency and time-window parameters for VEMP-related applications of the F sp detection algorithm. F sp criteria values were established for cVEMP and oVEMP. Using these parameters, responses were detected in all participants.

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Objective methods to measure vestibular evoked myogenic potential response saccular tuning curves

Obeidat

Bell

2019

International Journal of Audiology

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The effect of stimulation rate on cervical vestibular evoked myogenic potential quality

Cited by 4 publications

References 7 publications

Comparing the sensitivity and specificity of cervical vestibular-evoked myogenic potentials and electrocochleography in the diagnosis of Ménière’s disease

Comparing the sensitivity and specificity of cervical vestibular-evoked myogenic potentials and electrocochleography in the diagnosis of Ménière’s disease

Evaluating Fixed Single-Point Parameters When Applied to Vestibular Evoked Myogenic Potentials: The Effect of Single Point and Signal Window

Objective methods to measure vestibular evoked myogenic potential response saccular tuning curves

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