title: Speech perception and functional benefit after cochlear implantation: a multicentre survey in Finland.
abstract: This study was done to survey the effect of cochlear implantation on hearing level, speech perception and listening performance in Finnish-speaking adults. The subjects of the study comprise 67 adults. Pure-tone thresholds (0.125-8 kHz), word recognition and listening performance were studied before and after implantation. After switch-on of the implant, the median values of PTA(0.5-4 kHz) in the sound field were fairly stable across the evaluation period. Three months after switch-on of the implant, the mean word recognition score was 54%. There was clear improvement in the mean word recognition scores over a longer period of time, the mean score being 71% 24 months after switch-on. Six months after switch-on, the majority of subjects (40/48) were able to recognize some speech without speechreading, and 26 of these 48 subjects were able to use the telephone with a known speaker, gaining good functional benefit from the implantation.
authors.affiliation: Department of Finnish, Saami and Logopedics, University of Oulu. taina.valimaa@oulu.fi
authors.forename: T T
authors.initials: TT
authors.lastname: Välimaa
authors.forename: M J
authors.initials: MJ
authors.lastname: Sorri
mesh_terms: D000328:Adult; D000368:Aged; D001301:Audiometry, Pure-Tone / Q000379:methods; D019929:Cochlear Implantation; D003638:Deafness / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011182:Postoperative Care; D011183:Postoperative Complications; D011300:Preoperative Care; D013067:Speech Perception; D011795:Surveys and Questionnaires; D016896:Treatment Outcome