ENT Flashcards
(73 cards)
otitis externa is associated with
- swimming
2. foreign bodies (repeated use of cotton swabs, hearing aids etc)
otitis externa is associated with swimming - why
other causes
washes out the acidic environment normally found it external auditory canal
other causes: foreign objects, repeated use of cotton swabs
otitis externa - symptoms:
- itching
- drainage from the external canal
- pain (esp when tragus is manipulated)
otitis externa - diagnosis
no tests are necessary
no routine culture
BASED ON EXAM
otitis externa - treatment (no names)
- topical antibiotics
- topical cortisol
- acidic acid and water solution
ear wax prevent otitis because
- creates acidic environment
2. blocks water (hydrophobic) –> bacteria grow in water (eps Pseudomonas)
Cerumen impaction - treatment of otitis externa
makes it impossible
otitis externa - treatment - topical antibiotics (names)
- ofloxacin
- ciprofloxacin
- polymyxin/neomycin
otitis externa - treatment - topical cortison (names)
hydrocortisone
Cerumen impaction - treatments (most effective?)
- direct mechanical removal by currette/spoon (most effective)
- blast it out with aline irrigation via syringe
- use mineral oil, hydrogen peroxide or carbamide peroxide to break it down
malignant otitis externa - definition
osteomyelitis of the skull from Pseudomonas in DM patients
malignant otitis externa - diagnosis (best initial / most accurate)
as diagnose osteomyelitis
Best initial: CT or MRI
Most accurate: bone biopsy
malignant otitis externa - treatment (no names)
- surgical debridement
2. antibiotics against Pseudomonas
names of antibiotics against Pseudomonas to treat malignant otitis externa
- ciprofloxacin
- piperacillin
- cefepime
- carbapenem
- aztreonam
Otitis media - clinical manifestations (findings)
- redness
- bulging
- Decreased hearing
- Loss of light reflex
- Immobility of the tympanic membrane
Otitis media - the most SENSITIVE finding
Immobility of the tympanic membrane
Otitis media - diagnosis
it is based ENTIRELY on physical examination
Otitis media - treatment (not for recurrent cases)
amoxicillin for 7-10 days
longer for young
shorter for old
Otitis media - treatment for recurrent cases
tympanocentesis (most accurate test) and aspirate for culture (VERY RARE)
MCC of otitis media
- Pneumococcus
- nontypeable Haemophilus
- Moraxella
If otitis media is not improving, switch amoxicillin to …
- amoxicillin-clavulatate
- Cefdinir
- carftibuten
- Cefuraxime
- Cefprozil
- Cefpodoxime
Acute sinusitis - clinical manifestation
- nasal discharge
- fever
- headaches
- facial tenderness
- tooth pain
- bad taste in the mouth
- decreased transillumination of the sinuses
Acute sinusitis - MCC
VIRAL
Acute sinusitis - bacterial causes
same as otitis media
- Strep pneum
- H. influenza
- Moraxella