Cochlear implant eligibility in an adult hearing aid population: a multi-perspective service evaluation of a patient referral pathway at a British district general hospital.

Objectives: To quantify patient eligibility for cochlear implantation following National Institute for Health and Care Excellence 2019 guidelines (TA566) over five years at our institution, and identify factors influencing patients' decisions surrounding cochlear implantation referral.

Methods: A multi-perspective service evaluation was conducted at a district general hospital, comprising cochlear implantation eligible patients. The main outcome measures were: eligibility numbers for 2014-2019, comparing application of TA566 versus 2009 (TA166) guidelines; and patient interview transcripts and questionnaires.