Auditory Speech Perception Development in Relation to Patient's Age with Cochlear Implant.

 A cochlear implant in adolescent patients with pre-lingual deafness is still a debatable issue.  The objective of this study is to analyze and compare the development of auditory speech perception in children with pre-lingual auditory impairment submitted to cochlear implant, in different age groups in the first year after implantation.  This is a retrospective study, documentary research, in which we analyzed 78 reports of children with severe bilateral sensorineural hearing loss, unilateral cochlear implant users of both sexes.