Abstract
Rationale: Cochlear Implant (CI) candidates with a ski-slope hearing loss may be outside current implantation criteria [< 50% on Bamford–Kowal–Bench (BKB) sentence testing], despite having a significant hearing disability and limited benefit from conventional amplification.Aim: To use existing post-operative performance data to establish a criterion for Arthur Boothroyd (AB) word test for CI candidacy assessment.Methodology: Retrospective analysis of post-operative AB words scores for 64 CI users was performed and the 10th percentile score selected as a criterion of reasonable chance for post-operative improvement. A follow-up audit was performed 4 years later with a larger patient group of 127 CI users.Outcomes: An AB word score of 15% was determined using this method and became the pre-implant criterion for future patients. The same score was achieved on the follow-up audit and was adopted as an All Wales criterion as part of the National Audit process.
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