Simultaneous recording of extra-tympanic electrocochleography and brainstem evoked responses in clinical practice

Singh, C. B.; Mason, Steve

doi:10.1017/s002221510009071x

Cited by 10 publications

(2 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Under these circumstances simultaneous recordings of E Coch G and BAEP can be rewarding. Latency of Nl E Coch G can be regarded as that of wave I (Singh and Mason, 1981).…”

Section: Casementioning

confidence: 99%

Brainstem auditory evoked potentials after irradiation of nasopharyngeal carcinoma—Report on two cases with myelopathy of the brainstem

et al. 1988

View full text Add to dashboard Cite

Brainstem auditory evoked potentials (BAEP) were recorded in two patients with nasopharyngeal carcinoma (NPC) irradiated 14 and three years ago respectively and compared with 15 healthy controls. The patients had features of post-irradiation myelopathy of the brainstem with reduced gag reflex, unilateral vocal cord paralysis and fasciculation of the tongue. The first patient had a blind left eye. The second patient had quadriparesis. All ears revealed post-irradiation otitis media changes and mixed deafness. BAEP was not recognizable in the left ear of the first patient and was normal in the left ear of the second patient. Simultaneous electrocochleogram and BAEP were recorded from the right ear of the first case. The wave I-V latency interval were prolonged in both right ears. In the absence of local recurrence and brain secondaries, these BAEP changes are attributed to the post-irradiation myelopathy of brainstem.

show abstract

“…Under these circumstances simultaneous recordings of E Coch G and BAEP can be rewarding. Latency of Nl E Coch G can be regarded as that of wave I (Singh and Mason, 1981).…”

Section: Casementioning

confidence: 99%

Brainstem auditory evoked potentials after irradiation of nasopharyngeal carcinoma—Report on two cases with myelopathy of the brainstem

et al. 1988

View full text Add to dashboard Cite

show abstract

“…Traditionally, ECochGs are recorded using a horizontal montage, where the inverting and non-inverting electrodes are positioned in the horizontal plane (i.e., opposite ears), while ABRs use a vertical montage (e.g., ipsilateral ear to vertex) [20]. This is carried out with the purpose of emphasizing different components of early AEP waveforms based on the goals of testing (e.g., monitoring endolymphatic hydrops versus estimating thresholds).…”

Section: Introductionmentioning

confidence: 99%

Exploring Electrode Placements to Optimize the Identification and Measurement of Early Auditory Evoked Potentials

McFarlane,

Sanchez

2023

Audiology Research

View full text Add to dashboard Cite

Cochlear synaptic loss (termed cochlear synaptopathy) has been suggested to contribute to suprathreshold hearing difficulties. However, its existence and putative effects in humans remain inconclusive, largely due to the heterogeneous methods used across studies to indirectly evaluate the health of cochlear synapses. There is a need to standardize proxies of cochlear synaptopathy to appropriately compare and interpret findings across studies. Early auditory evoked potentials (AEPs), including the compound action potential (AP)/Wave I of the auditory brainstem response are a popular proxy, yet remain variable based on technical considerations. This study evaluated one such consideration—electrode array (i.e., montage)—to optimize the use of early AEP waveforms. In 35 young adults, electrocochleography (ECochG) responses were collected using vertical and horizontal montages. Standard ECochG measures and AP/Wave I and Wave II peak-to-trough amplitudes and latencies were compared between montages. Vertical montage recordings consistently produced significantly larger AP/Wave I peak-to-trough amplitudes compared to horizontal recordings. These findings support the use of a vertical electrode montage for optimal recordings of peripheral cochlear nerve activity. As cochlear synaptopathy continues to be explored in humans, the methods highlighted here should be considered in the development of a standardized assessment.

show abstract

Electrophysiology

Soucek¹,

Michaels²

1990

The Bloomsbury Series in Clinical Science

View full text Add to dashboard Cite

Simultaneous recording of extra-tympanic electrocochleography and brainstem evoked responses in clinical practice

Cited by 10 publications

References 13 publications

Brainstem auditory evoked potentials after irradiation of nasopharyngeal carcinoma—Report on two cases with myelopathy of the brainstem

Brainstem auditory evoked potentials after irradiation of nasopharyngeal carcinoma—Report on two cases with myelopathy of the brainstem

Exploring Electrode Placements to Optimize the Identification and Measurement of Early Auditory Evoked Potentials

Electrophysiology

Contact Info

Product

Resources

About