Cochlear Implantation Outcome in Prelingually Deafened Young Adults
A Speech Perception StudySantarelli R. · De Filippi R. · Genovese E. · Arslan E.
Department of Medical and Surgical Specialities, Service of Audiology and Phoniatrics, University of Padua, Padua, Italy
The outcome of cochlear implantation in patients with deafness of prelingual onset is largely unpredictable due to high individual variability. This study evaluated speech perception performances in a group of 18 prelingually deafened subjects (aged 13–30 years) which was homogeneous with respect to duration of deafness, hearing aid use before cochlear implantation, mode of communication and administration of auditory-oral speech therapy. Word discrimination length, word and sentence identification, phoneme identification and word and sentence recognition were tested before cochlear implantation and at 6 months, 1, 2 and 3 years of cochlear implant use. Scores on all tests significantly improved after cochlear implantation, although mean values were lower compared to those achieved by postlingually deafened patients. Speech performances on both word and sentence recognition continued to increase over time also beyond 1 year after cochlear implantation. Moreover, scores on sentence recognition tests were significantly higher compared to disyllabic words at 3 years of cochlear implant use. The presence of an auditory input delivered by hearing aids before cochlear implantation associated with auditory-oral therapy and a good level of education may positively influence the cochlear implant outcome in prelingually deafened adults.
© 2008 S. Karger AG, Basel
Received: May 30, 2007
Accepted after revision: November 28, 2007
Published online: February 7, 2008
Number of Print Pages : 9
Number of Figures : 6, Number of Tables : 1, Number of References : 25
Audiology and Neurotology (Basic Science and Clinical Research in the Auditory and Vestibulary Systems and Diseases of the Ear)
Vol. 13, No. 4, Year 2008 (Cover Date: June 2008)
Journal Editor: Harris, J.P. (San Diego, Calif.)
ISSN: 1420–3030 (Print), eISSN: 1421–9700 (Online)
For additional information: http://www.karger.com/AUD