Cochlear Implant surgery successfully performed on four year old girl

A
rare cochlear implant surgery was successfully performed on a four-year
old girl, who had profound hearing loss since birth. This article
states that hearing loss was one of the most common major abnormalities
present at birth and if undetected would impede speech, language and
cognitive development,he said significant bilateral hearing loss is
present in about one to three per 1,000 newborns.

Link: http://www.ndtv.com/article/tamil-nadu/rare-cochlear-implant-surgery-performed-on-a-4-year-old-187151