TRANSTYMPANIC ELECTROCOCHLEOGRAPHY FOR EVALUATION OF MENIERE\'S DISEASE
نویسندگان
چکیده مقاله:
35 patients with unilateral sensorineural impairment and hearing levels within the normal range in the opposite ears were investigated by bilateral transtympanic electrocochleography (TIECoG). Only 19 patients (54%) satisfied the criteria for Meniere's disease and 16 patients (46%) showed sensorineural impairment due to other etiologies. Clinical studies have focused exclusively on the a mplitude ratio of the summating potential (SP) and the action potential (AP) derived from alternating polarity click responses (Le., SP/AP). In only clinically defined ears with Meniere's disease have abnormally large SPs been found. Neither normal ears nor sensorineural impaired ears of other etiologies exhibited abnormal SPs, hence we used normal ears as a control in this study.
منابع مشابه
transtympanic electrocochleography for evaluation of meniere's disease
35 patients with unilateral sensorineural impairment and hearing levels within the normal range in the opposite ears were investigated by bilateral transtympanic electrocochleography (tiecog). only 19 patients (54%) satisfied the criteria for meniere's disease and 16 patients (46%) showed sensorineural impairment due to other etiologies. clinical studies have focused exclusively on the a m...
متن کاملTranstympanic Electrocochleography for the Diagnosis of Ménière's Disease
This paper evaluated the diagnostic power of electrocochleography (ECochG) in detecting Ménière's disease (MD) as compared with two subjective assessment methods, including the clinical guidelines provided by the American Academy of Otolaryngology-Head and Neck Surgery Committee on Hearing Equilibrium and the Gibson score. A retrospective study of 250 suspected MD cases was conducted. The agree...
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 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 کاملElectrocochleography for Ménière's disease: is it reliable?
INTRODUCTION Endolymphatic hydrops, the histopathological substrate of Ménière's disease, is an almost universal finding in postmortem studies of patients with this disease. The cause of hydrops is still unknown, as is the mechanism by which it causes progressive dysfunction of the sensory organs of inner ear. The fluctuating course of the disease complicates the interpretation of certain tests...
متن کامل[Extratympanic electrocochleography in Ménière's disease].
INTRODUCTION Electrocochleography is the registration of an electrophysiological event which takes place in the cochlea after an acoustical stimulus. Most of the authors consider an increased summating potential (SP)/action potential (AP) ratio as characteristic of endolymphatic hydrops. METHODS A longitudinal, prospective study of a unilateral Ménière's population diagnosed according to the ...
متن کاملمنابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ذخیره در منابع من قبلا به منابع من ذحیره شده{@ msg_add @}
عنوان ژورنال
دوره 11 شماره 4
صفحات 285- 287
تاریخ انتشار 1998-02
با دنبال کردن یک ژورنال هنگامی که شماره جدید این ژورنال منتشر می شود به شما از طریق ایمیل اطلاع داده می شود.
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023