Neural and receptor cochlear potentials obtained by transtympanic electrocochleography in auditory neuropathy
نویسندگان
چکیده
منابع مشابه
Cochlear microphonic potential recorded by transtympanic electrocochleography in normally-hearing and hearing-impaired ears.
The cochlear microphonic is a receptor potential believed to be generated primarily by outer hair cells. Its detection in surface recordings has been considered a distinctive sign of outer hair cell integrity in patients with auditory neuropathy. This report focuses on the results of an analysis performed on cochlear microphonic recorded by transtympanic electrocochleography in response to clic...
متن کاملStudy of cochlear microphonic potentials in auditory neuropathy.
INTRODUCTION Auditory Neuropathy/Dyssynchrony is a disorder characterized by the presence of Otoacoustic Emissions and Cochlear Microphonic Potentials, an absence or severe alteration of Brainstem Evoked Auditory Potential, auditory thresholds incompatible with speech thresholds and altered acoustic reflexes. The study of the Cochlear Microphonic Potential appears to be the most important tool ...
متن کاملExtratympanic electrocochleography in the diagnosis of auditory neuropathy/auditory dyssynchrony.
UNLABELLED The brainstem auditory evoked potential (BAEP) is being extensively used as a method for the evaluation of cochlear function in individuals with diagnosis of auditory neuropathy/auditory dyssynchrony (AN/AD). In the absence of otoacoustic emissions, many cases of AN/AD have been diagnosed by the presence of CM identified in the BAEP. AIM to demonstrate the clinical applicability of...
متن کاملComparison of Transtympanic and Extratympanic Electrocochleography
Electrocochleography (ECoG) has been an important tool in the diagnosis of Meniere’s disease or endolymphatic hydrops. There are two methods employed, transtympanic and extratympanic. Many have regarded the results of these methods as being equally reliable. The purpose of this study is to determine any differences in sensitivity between the two methods. In this study patients with known endoly...
متن کاملCochlear implantation of auditory neuropathy.
Auditory neuropathy (AN) is a hearing disorder that presents with a grossly abnormal or absent neural response as measured by evoked potentials in the presence of normal outer hair cell function evidenced by present otoacoustic emissions or cochlear microphonics. Rehabilitation for patients with AN is challenging due to abnormal temporal encoding at the auditory nerve leading to severely impair...
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ژورنال
عنوان ژورنال: Clinical Neurophysiology
سال: 2008
ISSN: 1388-2457
DOI: 10.1016/j.clinph.2008.01.018