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Vickers, Deborah A. and Riley, Alison and Ricaud, Rebecca and Verschuur, Carl and Cooper, Stacey and Nunn, Terry and Webb, Kath and Muff, Joanne and Harris, Frances and Chung, Mark and Humphries, Jane and Langshaw, Alison and Poynter-Smith, Emma and Totten, Catherine and Tapper, Lynne and Ridgwell, Jillian and Mawman, Deborah and de Estibariz, Unai Martinez and O'Driscoll, Martin and George, Nicola and Pinto, Francesca and Hall, Anne and Llewellyn, Carol and Miah, Razun and Al-Malky, Ghada and Kitterick, Pádraig T. (2016) Preliminary assessment of the feasibility of using AB words to assess candidacy in adults. Cochlear Implants International, 17 (sup 1). pp. 17-21. ISSN 1467-0100

Abstract

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.

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