Preoperative Hearing Aid Evaluations for Cochlear Implant Patients: A Preliminary Report Using a Minimal Auditory Capabilities Battery

Abstract
Two profoundly deaf patients were evaluated using the minimal auditory capabilities (MAC) battery of speech discrimination tests. One patient was a multiple-channel cochlear implant patient (MC1) using a wearable speech-processor, the other a prospective cochlear implant patient using a hearing aid (HA). Results from the MAC battery showed that MC1 received significantly more auditory information via the speech-processor than was provided by the hearing aid to HA. The cochlear implant could be a suitable alternative for HA. Apparently, HA gained some minimal benefit from the hearing aid and these results should be taken into consideration when deciding which ear should be implanted.

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