Inner Ear D/os Flashcards
What are treatments for Ménière’s disease?
Incurable- but low sodium and diuretics, meds to relieve symptoms of attacks, gentamicin to obliterate inner ear.
What are causes of Ménière’s disease?
Circ problems, allergies, viral infection, endolymphatic sac issues.
What is noise induced damage?
Damage to organ of corgi from prolonged exposure to loud noise or short exposure to extremely intense noise. Usually high f hearing loss in notch pattern, permanent, gradual, not noticed in early stages. Can treat with hearing aids.
What Hz most affected in noise induced damage?
400 ha
What is meningitis bacterial
Infection of CNS that causes hearing loss in 30 percent. Swelling reduces blood supply to cochlea. Infects inner ear labyrinth and can ossify ear.
What are treatments for back meningitis
Hearing aids
Cochlear implants, ASL
Meds antibiotics, steroids, but meds can be oto toxic
Inner ear fistula?
A hole in oval or round window that lets perilymph leak. Most common in those with genetically caused malformed cochlea or ossicles. Can occur due to trauma (baro, head, noise) needs exploratory surgery to confirm. Causes progressive hearing loss.
How to treat inner ear fistula?
Patch with drop of blood, hearing aids, balance adaptation training
What is labyrinthitis? How do we treat?
Develops if bacterial toxins, tissue fluids or bacteria enter labryinth fluids. Treat with steroids and antibiotics
What is superior canal dehiscence syndrome? Symptoms? Treatment?
Thinning or absence of bone in temporal bone overlying scc. Symptoms are vertigo, vertigo with pressure changes (cough, sneeze), feeling of fullness, hearing loss. Surgical repair, bone graft.
What is an enlarged vestibular aqueduct syndrome? Cause? Symptoms? Treatment? What should be looked at?
Caused by congenital or acquired during childhood- will come on with hit to head
Symptoms are prog stepped hearing loss, vertigo , imbalance
With each minor event, more hearing loss
Treatment is hearing aid, cochlear implant.
Look at eyes for vestibular system.
What is benign paroxysmal positional vertigo?
Most common cause of vertigo. Oto conia dislodged from macula. Displaced in SCC, created 20 to 30 s vertigo when canal stimulated. Treatment is repositioning maneuver, so that endolymph absorbs oto conia. More vitamin d to help absorb.
What is labyrinthine concussion?
Soft tissue damage to membranous labryinth post trauma. Immediate vertigo post trauma, symptoms last an hour to weeks.
What is Ménière’s disease? Symptoms?
Due to excess of endolymph
More prevalent in females than males
Unilateral usually, bilateral 25-40 percent
Symptoms are aural fullness, fluctuating/decreased hearing, tinnitus, vertigo– come in attacks devastating to patient
