Cochlear Implants Flashcards
cochlear implants
moderate to profound sensorineural HL
what part of the ear does a cochlear implant stimulate
cochlea/auditory nerve
are cochlear implants acoustic or electrical stimulation?
electrical stimulation
what do cochlear implants do
bypasses hearing by electrical stimulating the auditory nerve
external components
transmitter coil/cable
microphone/receiver
processor
power supply
transmitter coil/cable
picks up acoustic sound and transmits into electric and send down to electrode array
processor
picks up acoustic sound
implements speech processing strategies
power supply
rechargeable
internal components
internal receiver/implant (goes in the cochlea)
electrode array
Cochlear implant candidacy
9 mos or older
single sided deafness
w/ EAS mild sloping to severe
60 dB 60% WR
off label candidacy
go against FDA recommendations
candidacy ranges
profound 0-18 mos
severe 2-18 yrs
moderate to severe 18 yrs and older
electroacoustic implant - hybrid
part hearing aid and part cochlear implant in the same ear
post operative procedure
surgery
recovery
implant stimulation
device setting
rehabilitation
long term follow up
monitor device training
who is a good candidate
use of HA prior
speech therapy
learned spoken language
who is a bad candidate
no prior amplification
no VIII nerve
born deaf
never learned spoken language
ossification
hearing aids
acoustic signal
amplifies sound through outer and middle ear
hair cell responsiveness
benefits of CI
improve speech perception, understanding and production
listening in noise
perception of environmental noise
limitations of CI
have to avoid electrostatic and electromagnetic fields
does deaf culture agree with CI
no
OG NAD position
parents should not be allowed to implant their child without their permission b/c it denies them the right to deaf culture
ASL 1st lang
2000 NAD position
parents have the right to decide for children
CI is not a cure for deafness
Bimodal hearing
use of two diff devices in each ear
HA (acoustic) and cochlear implant (electric)
Bimodal hearing is recommended for who?
children whose parents chose listening and spoken language for them
cochlear implant centers
children hospital of PA
NY eye and ear
NYU
