Preliminary assessment of the feasibility of using AB words to assess candidacy in adults

Background: Adult cochlear implant (CI) candidacy is assessed in part by the use of speech perception measures. In the United Kingdom the current cut-off point to fall within the CI candidacy range is a score of less than 50% on the BKB sentences presented in quiet (presented at 70 dBSPL). Goal: The...

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Bibliographic Details
Published in:Cochlear implants international 2016-04, Vol.17 (sup1), p.17-21
Main Authors: Vickers, Deborah A., Riley, Alison, Ricaud, Rebecca, Verschuur, Carl, Cooper, Stacey, Nunn, Terry, Webb, Kath, Muff, Joanne, Harris, Frances, Chung, Mark, Humphries, Jane, Langshaw, Alison, Poynter-Smith, Emma, Totten, Catherine, Tapper, Lynne, Ridgwell, Jillian, Mawman, Deborah, de Estibariz, Unai Martinez, O'Driscoll, Martin, George, Nicola, Pinto, Francesca, Hall, Anne, Llewellyn, Carol, Miah, Razun, Al-Malky, Ghada, Kitterick, Pádraig T.
Format: Article
Language:English
Subjects:
AB words
Adolescent
Adult
Aged
Aged, 80 and over
BKB sentences
Cochlear implant candidacy
Cochlear Implantation - methods
Cochlear Implants
Deafness - diagnosis
Deafness - physiopathology
Deafness - surgery
Feasibility Studies
Female
Humans
Male
Middle Aged
Patient Selection
Speech Discrimination Tests - methods
Speech Discrimination Tests - standards
Speech Perception
Speech Reception Threshold Test - methods
Speech Reception Threshold Test - standards
Treatment Outcome
United Kingdom
Young Adult
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Summary:Background: Adult cochlear implant (CI) candidacy is assessed in part by the use of speech perception measures. In the United Kingdom the current cut-off point to fall within the CI candidacy range is a score of less than 50% on the BKB sentences presented in quiet (presented at 70 dBSPL). Goal: The specific goal of this article was to review the benefit of adding the AB word test to the assessment test battery for candidacy. Results: The AB word test scores showed good sensitivity and specificity when calculated based on both word and phoneme scores. The word score equivalent for 50% correct on the BKB sentences was 18.5% and it was 34.5% when the phoneme score was calculated; these scores are in line with those used in centres in Wales (15% AB word score). Conclusion: The goal of the British Cochlear Implant Group (BCIG) service evaluation was to determine if the pre-implant assessment measures are appropriate and set at the correct level for determining candidacy, the future analyses will determine whether the speech perception cut-off point for candidacy should be adjusted and whether other more challenging measures should be used in the candidacy evaluation.
ISSN:1467-0100
1754-7628
DOI:10.1080/14670100.2016.1161143