الفهرس 
ANATOMY OF THE INNER EAR AND THE COCHLEAOnly 14 pages are availabe for public view
 |  | from | 132 |  |  |
| | | from | 132 | | |
Abstract
Background: Cochlear Implants are neuroprosthetic devices that are surgically implanted receiver-stimulator package and electrode array, which when used with external sound processor can produce a sensation of sound in the recipient in people who are deaf and can’t benefit from acoustic hearing aids or middle ear implants or bone conduction devices. Mainly in the past they were used in bilateral profound sensorineural hearing loss (SNHL). Nowadays patients with significant hearing loss or even with unilateral hearing loss are considered for Cochlear implants as well as for patients with medical indications other than hearing loss (ex: tinnitus).
Objective: To compare Lateral, Midscalar, and Perimodiolar electrodes, by using a systematic review as regards: trauma to the cochlea, hearing preservation (if there is a residual hearing), and outcome of the surgery.
Data Extraction: If the studies did not fulfill the inclusion criteria, they were excluded. The quality of relevant studies were assessed by NIH quality assessment tool for the type of study (”Study Quality Assessment Tools/National Heart, Lung and Blood Institute (NHLBI),”2019).
Conclusion: Preserving functional residual hearing in cochlear implant is higher in lateral electrode and Midscalar than in Perimodiolar electrode.