Cochlear Implant Surgery.

摘要: However, the majority of persons with hearing loss are not profoundly deaf and they have some remaining usable hearing. Encouraged by promising results in traditional cochlear implant patients improvements electrode design signal processing, investigators expanded indications for implantation. Now addition to completely patients, selected subjects residual eligible implantation modified electrodes. The approach involves preserving existing acoustic (low-frequency) an ear be implanted. Electrical stimulation is provided via a CI missing high frequencies improve speech understanding combined electric (A + E) prerequisite this form (ipsilateral A sufficient degree low frequency implanted ear. Most electrodes able achieve improved sound perception word while their (Ching et al., 1998; Hogan & Turner, 1998). listening condition using only A+E no aid contralateral referred as “hybrid mode”. these recipients benefit from ear, “combined This situation has potential recognition both quiet noise (Gstoettner 2006; Turner Cummings, 1999).