Cochlear Implantation and Rehabilitation

  • Fei Chen
  • Wenli Ni
  • Wenyan Li
  • Huawei LiEmail author
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 1130)


Cochlear implant (CI) is currently the only medical treatment available to partially restore hearing to patients with profound-to-severe hearing loss. CI is fundamentally distinct from hearing aid (HA) use, as implants are surgically placed under the skin behind the ear where they bypass the normal sound-conducting mechanism, convert sound signals into electrical stimulation, and directly stimulate the residual auditory nerves. In recent years, CI has evolved into one of the most profound advances in modern medicine and provided hearing to more than 320,000 deaf patients. According to the time of onset, deafness is classified as prelingual and postlingual deafness, and the indications of cochlear implants vary slightly. The medical evaluation must be made before surgery, including the medical history, objective and subjective audiometry, imaging of the ear, as well as the genetic diagnostic. Here we reviewed the surgical approaches for cochlear implants as well as the complications.


Cochlear implantation Speech processing Speech perception Indication Surgery approach Outcome expectation 


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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  1. 1.Southern University of Science and TechnologyShenzhenChina
  2. 2.Key Laboratory of Hearing Medicine of NHFPC, ENT Institute and Otorhinolaryngology Department, Shanghai Engineering Research Centre of Cochlear Implant, Affiliated Eye and ENT Hospital, State Key Laboratory of Medical NeurobiologyFudan UniversityShanghaiChina

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