The feasibility of recording transiently evoked otoacoustic emissions immediately following grommet insertion.
The demonstration of normal hearing following grommet insertion in young or difficult to test children can be problematic. This study aims to determine whether transiently evoked otoacoustic emissions (TEOAEs), can be recorded in the operating theatre, immediately after grommet insertion, and whether this technique has any advantages over conventional testing to exclude sensorineural loss. One ear of each of 80 children was studied, using the Otodynamics ILO88 OAE analyser. Responses were normal in eight, reduced in 31 and absent in 39. Bleeding prevented the performance of the test in two children. We conclude that TEOAEs can be recorded in 50% of ears immediately after grommet insertion, but the responses are reduced compared with normal ears. This application of TEOAEs may be a useful supplement to behavioural tests, but we do not advocate it as a screening technique.
Richardson
H C
HC
Department of Otolaryngology, Freeman Hospital, Newcastle upon Tyne, UK.
Elliott
C
C
Hill
J
J
D000161:Acoustic Stimulation; D000768:Anesthesia, General; D002675:Child, Preschool; D005072:Evoked Potentials, Auditory; D005240:Feasibility Studies; D006319:Hearing Loss, Sensorineural / Q000175:diagnosis; D006801:Humans; D007430:Intraoperative Care; D008876:Middle Ear Ventilation; D010034:Otitis Media with Effusion / Q000601:surgery; D017084:Otoacoustic Emissions, Spontaneous