missed rosh review - EENT Flashcards
what is the most common cause of viral conjunctivitis?
adenovirus
clinical characteristics of viral conjunctivitis?
Viral conjunctivitis may occur in isolation or as part of a viral prodrome followed by preauricular lymphadenopathy, fever, pharyngitis, and upper respiratory infection
what is the most common cause of orbital cellulitis?
bacterial rhinosinusitis
(S. aureus, Strep anginosus)
describe the presentation of orbital cellulitis?
Orbital cellulitis presents with eyelid swelling, eye pain with and without eye movement, and ophthalmoplegia
In some cases, there may also be vision impairment, chemosis, proptosis, and leukocytosis
how is the diagnosis of orbital cellulitis confirmed?
CT –> shows inflammmation of extraocular muscles, fat strandings, and likely anterior displacement of eye globe
treatment of orbital cellulitis
IV abx- vanco + 3rd gen cephalosporin (ceftriaxone or cefotaxime
how can orbital vs periorbital cellulitis be differentiated?
periorbital cellulitis is only an infection of the skin and NOT the fat behind –> no worsening pain with eye movements
What are possible complications of orbital cellulitis?
Subperiosteal abscess, orbital abscess, visual loss, and intracranial extension.
how is bacterial rhinosinusitis differentiated from viral rhinosinusitis
symptoms for more than 10 days or by the worsening of symptoms within 10 days of initial improvement
what is the treatment for sensorineural hearing loss?
surgical –> cochlear implantation
what are the tx options for conductive hearing loss?
- abx - if cause is AOM
- fluid removal/myringotomy tube - if chronic serous otitis media is the cause
acute management of epiglottitis
EMERGENT INTERVENTION - do not do diagnostics first
* bag valve mask O2 at 100%
* secure airway - intubation
* empiric abx - 3rd gen cephalosporin and antistaph (ex. vanco)
What are the indications to refer a patient with strabismus to opthalmology?
constant strabismus at any age, intermittent strabismus after 4 to 6 months of age, cranial light reflex test or cover test demonstrating strabismic deviation, asymmetric pupils, dilation that changes depending upon position of gaze, torticollis not explained by a musculoskeletal etiology, patient reports of double vision or fatigue with near-eye work (e.g., reading), or parental concern about ocular alignment
what is the most common complications of strabismus?
amblyopia
what is the first-line tx for allergic rhinitis
intranasal corticosteroid –> Fluticasone, mometasone
what is the treatment for dacryostenosis
observation and massage
what is the treatment for acute mastoiditis
uncomplicated: IV abx (amp-sulbactam if no recent abx use, pip-tazo if recent use) and middly ear drainage
complicated - aggressive surgical managment w a mastoidectomy + IV abx and myringotomy
what are complications of acute mastoiditis
- meningitis
- epidural or subdural abscess
- facial nerve palsy
- labrynthitis, hearing loss
- osteomyelitis
- venous sinus thrombosis.