Level Specific CE-Chirp® BAEP's: A new faster technique in neuromonitoring cochlear nerve during cerebello-pontine angle tumor surgery

Scipio, Ettore Di; Mastronardi, Luciano

doi:10.1016/j.inat.2017.10.001

Cited by 2 publications

(1 citation statement)

References 8 publications

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“…Ormunda et al 17 reported that the LS CE-Chirp stimulus provided larger wave V amplitudes and better wave morphology compared to the click stimulus in infants 17 . Di Scipio et al 18 reported that the LS CE-Chirp stimulus determined ABR waves more rapidly and clearly in cerebellopontine corner tumor surgery monitoring than the click stimulus.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Comparison of Click and Level-Specific (LS) CE Chirp-Stimulated Auditory Brainstem Responses in Adults with Hearing Loss

Ceylan,

Kaya

2023

J Am Acad Audiol

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Background The CE-Chirp stimulus used in the ABR was developed to compensate for the cochlear wave delay. As a version of broadband CE-Chirp stimulus, the use of level-specific (LS) CE-Chirp stimuli, which are created with varying delay models suitable for the intensity levels at which the sound is transmitted, is becoming increasingly common. Purpose The aim of this study was to compare click auditory brainstem responses (ABRs) with LS CE-Chirp ABR thresholds in adults with sensorineural hearing loss. Research Design The research is a cross-sectional-analytical research. Study Sample Twenty-two adult patients (n = 44 ears) with bilateral sensorineural hearing loss were included in the study. Data Collection and Analysis Pure Tone Audiometry (PTA), click ABR and LS CE-Chirp ABR tests were performed on adult (13 male, 9 female) (42.86± 14.50 years) patients with bilateral sensorineural hearing loss. Click ABR and LS CE-Chirp ABR thresholds were compared in terms of proximity to behavioral hearing thresholds of 2 kHz, 4 kHz, and 2–4 kHz averages. Results: Both types of ABR stimuli were able to identify with total hearing loss (n = 6). A statistically significant difference was found between LS CE-Chirp ABR thresholds (53.81±20.28 dB nHL) and click ABR thresholds (58.81±19.11 dB nHL) in the other ears (n = 38) with hearing loss (p=0.00). When both ears were evaluated together and the right and left ears were evaluated separately, no difference was found between LS CE-Chirp ABR thresholds and 4 kHz behavioral hearing thresholds (p: 0.66, p:0.80, p: 0.69, respectively). Conclusion: We determined that in adults with hearing loss, the LS CE-Chirp provides ABR thresholds closer to the behavioral hearing thresholds of 2 kHz, 4 kHz compared to the click stimulus. Notably, there was no difference between LS CE-Chirp ABR thresholds and the 4 kHz behavioral hearing thresholds. We concluded that the LS CE-Chirp stimulus can be used effectively in the estimation of behavioral hearing thresholds in adults with hearing loss Keywords: Auditory Brainstem Response, Hearing loss, Click, Level specific CE-Chirp

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Section: Accepted Manuscriptmentioning

confidence: 99%

Comparison of Click and Level-Specific (LS) CE Chirp-Stimulated Auditory Brainstem Responses in Adults with Hearing Loss

Ceylan,

Kaya

2023

J Am Acad Audiol

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Effects of Stimulus Repetition Rates on the Auditory Brainstem Response to Level-Specific CE-Chirp in Normal-Hearing Adults

et al. 2020

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Purpose The purpose of this study is to investigate the influence of stimulus repetition rates on the auditory brainstem response (ABR) to Level-Specific (LS) CE-Chirp and click stimuli at multiple intensity levels in normal-hearing adults. Method A repeated-measure study design was used on 13 normal-hearing adults. ABRs were acquired from the study participants using LS CE-Chirp and click stimuli at four stimulus repetition rates (19.1, 33.3, 61.1, and 81.1 Hz) and four intensity levels (80, 60, 40, and 20 dB nHL). The ABR test was stopped at 40-nV residual noise level. Results High-stimulus repetition rates caused the ABR latencies to be longer and have reduced amplitudes in both ABR to LS CE-Chirp and click stimuli. The ABR to LS CE-Chirp Wave I, III, and V amplitudes were larger than ABR to click in almost all the stimulus repetition rates. However, there were no differences in the number of averages required to reach the stopping criterion between ABR to LS CE-Chirp and click stimulus, and between high-stimulus repetition rates and low-stimulus repetition rates. Conclusion The LS CE-Chirp at standard low-stimulus repetition rates can be used to elicit ABR for both neurodiagnostic and threshold seeking procedure.

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Level Specific CE-Chirp® BAEP's: A new faster technique in neuromonitoring cochlear nerve during cerebello-pontine angle tumor surgery

Cited by 2 publications

References 8 publications

Comparison of Click and Level-Specific (LS) CE Chirp-Stimulated Auditory Brainstem Responses in Adults with Hearing Loss

Comparison of Click and Level-Specific (LS) CE Chirp-Stimulated Auditory Brainstem Responses in Adults with Hearing Loss

Effects of Stimulus Repetition Rates on the Auditory Brainstem Response to Level-Specific CE-Chirp in Normal-Hearing Adults

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