Implantable Devices

Question 1

Bone anchored hearing aid/implant age

Answer 1

infants 9 mos- headband
5 years - implant

Question 2

BAHA

Answer 2

for patients who can’t use AC devices
stimulates better cochlea/VIII nerve and overcomes head shadow effect

Question 3

BAHA type/degree of loss

Answer 3

mild to moderate conductive/mixed HL

Question 4

BAHA candidates

Answer 4

conductive hearing loss
atresia - no ear canal
chronic otitis media
single sided deafness

Question 5

BAI vs BAHA

Answer 5

insurance covers implant but not hearing aid

Question 6

Middle ear implant

Answer 6

bypasses outer and tympanic membrane
stimulates middle ear

Question 7

MEI age

Answer 7

18 yrs and older

Question 8

MEI type/degree of HL

Answer 8

moderate to severe sensorineural
can be conductive with ossicle loss

Question 9

MEI candidates

Answer 9

rejection of HA due to occlusion effect

Question 10

Electroacoustic Implant

Answer 10

part hearing aid and part CI in same ear
HA for low freq
CI for high freq
stimulates VIII nerve

Question 11

EAS age

Answer 11

18 years and older

Question 12

EAS type/degree of HL

Answer 12

moderate sloping to severe to profound sensorineural

Question 13

Auditory brainstem Implant

Answer 13

bypasses VIII nerve and stimulates brainstem
early speech understanding and late sound awareness

Question 14

ABI age

Answer 14

3 years and older

Question 15

ABI candidates

Answer 15

no cochlea
no CI b/c of bone growth
neurofibromatosis II
good for no VIII nerve

Question 16

ABI type/degree of HL

Answer 16

profound sensorineural

Question 17

cochlear implant

Answer 17

bypasses acoustic hearing by direct electrical stimulation of VIII nerve

Question 18

CI type/degree of HL

Answer 18

moderate to profound sensorineural

Question 19

CI age

Answer 19

9 mos and older

Question 20

CI candidates

Answer 20

prior amplification
knows spoken language