Prognostic Indicators in Paediatric Cochlear Implant Surgery: A Systematic Literature Review

Cochlear Implants International

Black, J., Hickson, L., et al. (2011).

Cochlear Implants International, 12(2), 67-93.

This systematic review investigates the effect of prognostic factors on cochlear implantation outcomes in children, birth to 12-years-old, with hearing loss.

Not stated



Up to 2008

Case control studies with more than one group (control group or comparison group)

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Cochlear implants had a neutral impact on speech recognition and a positive impact on speech intelligibility, reading, and cognitive outcomes in children with GJB2-related deafness.

Cytomegalovirus (CMV) alone is not a contraindication for cochlear implantation. However, central nervous system problems are typical in this group; therefore outcomes may be poorer.

"Children who use oral communication demonstrate higher levels of performance after [cochlear] implantation than children who use total communication" (p. 73).

"Earlier implantation resulted in significant speech perception and language advantages, although ... late age at implantation does not singularly preclude beneficial development of vocabulary" (p. 73).