Electrocochleography: A Review of Recording Approaches, Clinical Applications, and New Findings in Adults and Children

Research related to expanding and improving the clinical use of electrocochleography (ECochG) has been ongoing for 25 yr at the University of Kansas Medical Center. This article presents highlights of findings from our laboratory during this period that have contributed to current ECochG recording approaches and clinical applications. A review of new data related to improving the sensitivity of ECochG in the diagnosis of Ménière's disease, the use of an ear canal recording approach for improving auditory brain stem response testing in newborns, and technical aspects related to recording the cochlear microphonic in newborns also will be presented.

Key Words

Action potential - auditory brain stem response - auditory evoked potential - auditory neuropathy - cochlear microphonic - condensation - electrocochleography - endolymphatic hydrops - extratympanic - Ménière's disease - rarefaction - summating potential - transtympanic - tympanic membrane