what is a tuning fork
emits clear tone to Dx the ear, shows level of hearing
what is audiometry
headphones in soundproof room which plays tones at pithces
determines how much you can hear
- demonstrates how much damage done
what is an ENG used for
measure balance and position problems
how do you do ENG
alternating cold and warm water placed into ear canal
what is an auditory brain response (ADR)
gives info about inner ear and brain hearing pathways
specialty equipment for ENT
loupes
head lamps
argon laser
speculum holder
nerve stimulator
power equipment
consideration when working on ENT
watch the lower ear
dont prep eyes or ears usually
not sterile cases
what is the most common graft for tympanoplasty
synthetic graft on head
what is otitis media
ear infection
- inflammation of middle ear, blocks eustachian tube and fills with fluid
what are ear tubes called
PE tubes- pressure equalizing tubes
what is the location of myringtotomy
pars tensa allows to place PE tube
steps of myringtotomy
incise
implant: vent tubes (PE tubes)
- wax removal from canal
- incision into pars tensa
- suction fluid
- place PE tube
- place antibiotic
what is type I tympanoplasty
tympanic membrane
repair of eardrum
what is type II tympanoplasty
ear drum and malleus
what is type III tympanoplasty
ear drum, malleus, and incus
what is type IV tympanoplasty
ear drum + all ossicles
what is type V tympanoplasty
type IV and fixed stapes footplate
characteristics of tympanic fascia graft
may be harvested through same incision
allowed to air dry
thin and light like tissue paper
pathology of mastoiditis
untreated otitis media
destorys the mastoid bone
what can mastoiditis lead to
meningitis, encephalitis, death
pathology of cholesteatoma
cyst or tumor that destroys air cells
can also damage ossicles
- cause cranial nerve damage
what causes cholesteatoma
accumulation of epithelial cells
- due to eustachian being blocked
what is a mastoidectomy
rmeoval of bony mastoid due to cholesteatome or mastoiditis
what are complications with mastoidectomy
facial nerve damage
post op SSI
long time hearing loss
vertigo
meningitis