Cochlear implantation in sudden bilateral sensorineural hearing loss.

Although 1-4% of all cases of sudden sensorineural hearing loss (SSHL) are bilateral, all such patients reported to date have experienced significant recovery of hearing in at least one ear. We report a case of profound, bilateral idiopathic SSHL without recovery which was treated with cochlear implantation; the first such report to our knowledge. The patient achieved open-set spondee recognition. Individuals with sudden bilateral hearing loss in whom treatable causes have been eliminated may benefit from cochlear implantation.