Electrocochleography in clinical-audiological diagnosis

The technique of electrocochleography is reviewed with special emphasis on the use of averaging procedures, the types of responses recorded, the mobility of the stimulating and recording equipment and the completely nontraumatic nature of earlobe and scalp electrodes. The usefulness of the technique is demonstrated by case reports which include subjects with uncertain diagnosis, brain damage, mental retardation, suspected deafness and retro-cochlear hearing loss. The contributions of electrochleography to the diagnostic evaluation of these subjects is discussed.