Cochlear potentials in otosclerosis

Ronis, Bernard J.

doi:10.1288/00005537-196602000-00003

Cited by 28 publications

(2 citation statements)

References 9 publications

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“…25,26,27 The ECochG was first recorded intraoperatively in the 1960's during middle ear surgery. 28,29 Because of the work of Levine and his colleagues 5 there has been a reawakening of interest in the intraoperative recording of the ECochG. The stimulus/intensity function of the Nl component of the ECochG which we have observed intraoperatively is similar to that described by Eggermont.…”

Section: Discussionsupporting

confidence: 67%

Electrophysiological Monitoring During Acoustic Neuroma and Other Posterior Fossa Surgery

Linden

Tator

Benedict

et al. 1988

Can. j. neurol. sci.

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ABSTRACT:Techniques used to monitor the function of the seventh and eighth cranial nerves during acoustic neuroma and other posterior fossa surgery are reviewed. The auditory brainstem response (ABR), electrocochleogram (ECochG) and direct recording from the auditory nerve (CNAP) were compared. The best technique is the ECochG, although in many cases, the CNAP should be used as a back-up technique. The CNAP is especially useful for the identification of the auditory nerve. Both can provide real-time feedback on the physiological integrity of the auditory nerve. The ABR may be helpful in monitoring brainstem function. For some procedures, optimal monitoring requires the combined recording of all three techniques.Monopolar constant-voltage intracranial stimulation of the facial nerve is helpful for the identification and preservation of the facial nerve. Audio monitoring of spontaneous electromyographic activity provides real-time feedback on the effect of surgical manipulation of the nerve. Monitoring of ephaptic transmission in the facial nerve during microvascular decompression for hemifacial spasm aids in the identification of the offending vessel.

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Section: Discussionsupporting

confidence: 67%

Electrophysiological Monitoring During Acoustic Neuroma and Other Posterior Fossa Surgery

Linden

Tator

Benedict

et al. 1988

Can. j. neurol. sci.

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“…Clear nearly noise free N 1 N 2 waveforms were shown. Ronis (1966) also presented some results pre- and post-stapedectomy, and suggested the use of the N 1 latency as a “valid index of improved sound conduction”. Reviewing his work, Ruben (1967) mentioned three important topics in ECochG: (1) the correlation of physiological and psychoacoustic properties; (2) the investigation of certain diseases; and (3) the objective diagnosis of individual cases of deafness.…”

Section: Introductionmentioning

confidence: 99%

Ups and Downs in 75 Years of Electrocochleography

Eggermont

2017

Front. Syst. Neurosci.

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Before 1964, electrocochleography (ECochG) was a surgical procedure carried out in the operating theatre. Currently, the newest application is also an intra-operative one, often carried out in conjunction with cochlear implant surgery. Starting in 1967, the recording methods became either minimal- or not-invasive, i.e., trans-tympanic (TT) or extra tympanic (ET), and included extensive studies of the arguments pro and con. I will review several valuable applications of ECochG, from a historical point of view, but covering all 75 years if applicable. The main topics will be: (1) comparing human and animal cochlear electrophysiology; (2) the use in objective audiometry involving tone pip stimulation—currently mostly pre cochlear implantation but otherwise replaced by auditory brainstem response (ABR) recordings; (3) attempts to diagnose Ménière’s disease and the role of the summating potential (SP); (4) early use in diagnosing vestibular schwannomas—now taken over by ABR screening and MRI confirmation; (5) relating human electrophysiology to the effects of genes as in auditory neuropathy; and (6) intracochlear recording using the cochlear implant electrodes. The last two applications are the most recently added ones. The “historical aspects” of this review article will highlight the founding years prior to 1980 when relevant. A survey of articles on Pubmed shows several ups and downs in the clinical interest as reflected in the publication counts over the last 75 years.

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Electrocochleography

Eggermont¹

1976

Handbook of Sensory Physiology

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Cochlear potentials in otosclerosis

Cited by 28 publications

References 9 publications

Electrophysiological Monitoring During Acoustic Neuroma and Other Posterior Fossa Surgery

Electrophysiological Monitoring During Acoustic Neuroma and Other Posterior Fossa Surgery

Ups and Downs in 75 Years of Electrocochleography

Electrocochleography

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