A number of electrophysiological tests have been proposed for the initial diagnostic assessment or for the follow-up phase of patients affected by Ménière disease. The most common are: (i) vestibular evoked myogenic potentials (VEMPs); (ii) electrocochleography (ECochG); and (iii) otoacoustic emissions (OAEs). This paper presents the latest clinical developments with these 3 testing modalities....

A case of potassium bromate intoxication showing a severe hearing loss and anuria was reported. This 19 years old female patient had no vertigo nor vestibular disorders, but a strong cochlear damage was suspected by electerochleography. In order to investigate the effects of potassium bromate on the inner ear, the authors performed experiments by using guinea pigs. At first, various concentrati...

Some patients suffer hearing loss in the early postoperative period following vestibular schwannoma excision despite having intact hearing immediately after surgery. As this phenomenon has rarely been documented or described, the putative mechanism remains vague. The objective of the current study was to document the patterns of change in behavioural and electrophysiological responses in patien...

Sixteen cases of Ramsay Hunt syndrome were investigated concerning the prognosis of facial nerve palsy, hearing impairment, and vestibular disorder. The satisfactory prognosis of facial nerve palsy was achieved in those cases which a good response was evoked by the maximal stimulation test as well as in cases of Bell's palsy. And also, the satisfactory prognosis of hearing impairment was achiev...

CONCLUSION 3 T MRI after intratympanic injection of gadolinium-based contrast agent (GBCA) is more useful for the diagnosis of endolymphatic hydrops compared with the glycerol test and electrocochleography (ECoG). OBJECTIVE To investigate the relationship between 3 T MRI after intratympanic injection of GBCA, the glycerol test, and ECoG in patients with Meniere's disease (MD). METHODS A tot...

During electrocochleography, that is, ECochG or ECoG, a recording electrode can be placed in the ear canal lateral to the tympanic membrane. We designed a concha electrode to record both sinusoidal waveforms of cochlear microphonics (CMs) and auditory brainstem responses (ABRs). The amplitudes of CM waveforms and Wave I or compound action potentials (CAPs) recorded at the concha were greater th...

OBJECTIVE To evaluate the efficacy of a portable low-intensity alternating pressure generator, the Meniett device, in controlling the symptoms of Ménière's disease. DESIGN A randomized, placebo-controlled, double-blind, multicenter clinical trial of 4 months' duration. SETTING Four study sites: 3 academic medical centers and 1 private practice. PATIENTS Sixty-seven people aged 33 to 71 ye...

The etiology of Meniere disease (MD) is unknown. Among the several factors which can provoke the disease is a pathological immune response. Objective: To investigate whether MD is due to a pathological immune reaction. Materials and methods: Immunological assay (IA) was evaluated in a consecutive study on 159 patients with MD (mean age 47.8. years) and the results compared with those from 26 pa...

INTRODUCTION Residual inhibition (RI) is the temporary inhibition of tinnitus by use of masking stimuli when the device is turned off. OBJECTIVE The main aim of this study was to evaluate the effects of RI induced by auditory electrical stimulation (AES) in the primary auditory pathways using early auditory-evoked potentials (AEPs) in subjective idiopathic tinnitus (SIT) subjects. MATERIALS...