[Results and therapeutic indications of the electrical stimulation of the round window in 581 cases of bilateral total deafness].

Round Window Electric Stimulation necessitates to remove the ear drum to directly place the electrode tip in the round window niche. This test supplies the patient with a sound sensation in 93% of cases presenting a total deafness. It may be realized either under local or general anesthesia owing to brain stem evoked auditory responses. This test supplies the surgeon with precious informations regarding the cochlear implant indications.