ENT Flashcards
MC cause bacterial sinusitis
streptococcus pneumoniae
haemophilus influenza (2nd)
oral decongestants should be limited to how many days
3 days
oral decongestants should be avoided in
ppl w cardiovascular dz
HTN
angle-closure glaucoma
bladder neck obstruction
tx bacterial sinusitis
amoxicillin or augmentin
doxy if allergy to PCN
MC cause of chronic bacterial sinusitis (> 12 weeks)
staph aureus
turbinates in allergic rhinitis
pale and boggy
tx allergic rhinitis
intranasal corticosteroid sprays (fluticasone, budesonide, beclomethasome)
second generation antihistamines (loratidine, fexofenidine, cetirizine)
aphthous stomatitis (canker sore)
small, painful, round to oval ulcers that typically heal within 1-2 weeks
peripheral rim of erythema surrounding a yellowish, central exudate
simple aphthous stomatitis
MC
sporadic episodes throughout year
limited to oral mucosa
3-5 mm
heal within 1-2 weeks
complex aphthous stomatitis
ulcers on both oral and genital mucosa
> 1 cm
more painful
can take up to 6 weeks to heal
pts w recurrent oral and genital ulcers should be evaluated for
Behcet syndrome (using a pathergy test)
what toothpaste can you recommend to ppl w aphthous stomatitis
sodium laurel sulfate-containing toothpaste
topical anesthetics for aphthous stomatitis
2% viscous lidocaine
diphenhydramine liquid
dyclonine lozenges
topical steroids for aphthous stomatitis
dexamethasone elixir
oral prednisone if inadequate (usually for complex) - 4-7 days
MC cause aphthous ulcers
human herpes virus 6
inflammation of the eyelid margin
blepharitis
posterior blepharitis
MC
meibomian gland dysfunction
anterior blepharitis
involves lid skin and base of eyelashes
2 types - infectious (staph aureus) and seborrheic
sx blepharitis
crusting
scaling
red-rimming of eyelid
flaking on lashes or lid margins
tx blepharitis
eyelid hygiene
if refractory/severe - topical abx (Azithromycin, Erythromycin, Bacitracin)
sx corneal abrasion or ocular foreign body
foreign body sensation
tearing
red and painful eye
photophobia
blepharospasms (hard to open eye)
dx corneal abrasion
fluorescein stain – ice rink/linear abrasions
make sure to use wood lamp
tx corneal abrasions for non-contact lens wearers
erythromycin ointment
tx corneal abrasions for contact lens wearers
pseudomonas coverage - fluoroquinolones (ciprofloxacin or oxfloxacin) or aminoglycoside (tobramycin or gentamicin)
when is patching the eye contraindicated for corneal abrasion
if foreign body cannot be removed
pt is a contact lens wearer
topical anesthetic for corneal abrasion
proparacaine
anesthetic for severe pain/large corneal abrasions
cycloplegic drops (cyclopentolate) + short course of oral opioids
indications for urgent referral corneal abrasion
large epithelial defect
purulent discharge
drop in visual acuity of more than 2 lines in snellen chart
corneal abrasion that has not healed within 72 hours!!!
bacterial conjunctivitis is commonly due to
staphylococcus aureus
streptococcus pneumoniae
H influenzae
M catarrhalis
sx bacterial conjunctivitis
painless
mucopurulent discharge
lid crusting (stuck shut in the morning)
normal vision
tx for bacterial conjunctivitis
topical antibiotics - erythromycin ointment
for contact lens wearers (pseudomonas coverage) - topical ciprofloxacin or Ofloxacin
MC cause viral conjunctivitis
adenovirus
MC source of outbreaks of viral conjunctivitis
swimming pool
sx viral conjunctivitis
foreign body or gritty sensation
ocular erythema
tearing
itching
normal vision
PE viral conjunctivitis
ipsilateral enlarged and tender pre auricular lymphadenopathy
copious watery tearing
tx viral conjunctivitis
supportive
sx allergic conjunctivitis
allergic sx (MARKED PRURITUS)
bilateral eye redness
normal vision
watery discharge
PE for allergic conjunctivitis
cobblestone mucosa
watery or mucoid stringy discharge
chemises (conjunctival edema)
tx allergic conjunctivitis
supportive
topical antihistamine - olopatadine and pheniramine-naphazoline
corneal ulcers are also called
keratitis (bacterial vs herpes keratitis)
increased risk of corneal ulcer
contact wearer and improper wear – pseudomonas
sx corneal ulcer
OCULAR PAIN
photophobia
eye redness
vision changes (threatens sight)
watery discharge/tearing
foreign body sensation
PE corneal ulcer
conjunctival erythema
ciliary injection (limbal flush)
hazy cornea (corneal opacification and ulceration)
increased fluorescein uptake on slit lamp (deeper than corneal abrasion)
tx corneal ulcer
fluoroquinolone topical (Moxifloxacin, Gatifloxacin)
DO NOT PATCH EYE
what nerve is affected in herpes keratitis
trigeminal ganglion
dx herpes keratitis
dendritic (branching) corneal ulceration w fluorescein staining hallmark
tx for herpes keratitis
antiviral - acyclovir or ganciclovir ointment
is keratitis/corneal ulcer an ophthalmologic emergency
YES –> referral
dacrocystitis
infection of lacrimal sac due to obstruction of nasolacrimal duct
sx dacrocystitis
tearing and signs of infx - tenderness, erythema, warmth to the inferior medial cantonal (nasal) side/lower lid area
may have purulent discharge
acute tx dacrocystitis
warm compress + systemic abx (Clindamycin, Vancomycin + Ceftriaxone)
chronic or severe tx dacrocystitis
dacryocystorhinostomy
abx prior to surgery
tx for posterior epistaxis
balloon catheter
sx acute narrow angle closure glaucoma
sudden onset of severe, unilateral ocular pain
vision changes - haloes around lights and peripheral vision loss (tunnel vision)
PE acute narrow angle closure glaucoma
conjunctival erythema
cloudy “steamy” cornea
mid-dilated fixed pupil (reacts poorly to light)
what will you see on funduscopy for acute narrow angle closure glaucoma
optic disc blurring or cupping (HALLMARK) of optic nerve (thinning of outer rim of optic nerve head)
cup to disk ratio and asymmetry of __ indicates glaucoma
cup to disc ratio of > 0.5 or asymmetry of > 0.2
what will tonometry show for glaucoma
increased intraocular pressure > 21 mmHg
what is the standard to diagnose acute narrow angle closure glaucoma
gonioscopy - allows for observation of narrow chamber angle
topical agent to reduce intraocular pressure in glaucoma
topical BB - timolol
or alpha 2 agonist - Apraclonidine, brimonidine
topical prostaglandin for acute narrow angle closure glaucoma
lantanoprost
agent to induce miosis in glaucoma
Pilocarpine
Carbachol
systemic agent to lower intraocular pressure in acute narrow angle closure glaucoma
IV acetazolamide or IV mannitol
definitive tx acute narrow angle closure glaucoma
iridotomy
sx chronic open angle glaucoma
ask until later
slow, progressive painless b/l peripheral vision loss (tunnel vision)
MC cause hordeolum
staph aureus
sx hordeolum
localized, erythematous, painful, warm, tender nodule or pustule on the eyelid
tx hordeollum
warm compress
hyphema
visible layering of blood in the anterior chamber of the eye
MC cause hyphema
blunt or penetrating injury to eye
what should you order if globe rupture suspected
CT scan of eye
tx hyphema
eye shield, bed rest, dim lighting
elevation of head to at least 30 degrees
topical tetracaine for pain and topical glucocorticoids to reduce bleeding
sx labyrinthitis
vestibular sx - continuous peripheral vertigo, dizziness, N/V, gait disturbance
nystagmus is usually horizontal and rotary
hearing loss
tx labyrinthitis
glucocorticoids
how is nystagmus suppressed in labyrinthitis
visual fixation
MC cause laryngitis
viral upper respiratory tract infection (MC)
vocal strain
sx laryngitis
hoarseness hallmark
aphonia
tx laryngitis
supportive
MC cause of permanent legal blindness and vision loss in older adults in the US
macular degeneration
dry macular degeneration
MC
progressive (over decades)
PE dry macular degeneration
druse bodies hallmark - small, round, yellow-white spots on the outer retina
wet macular degeneration
more aggressive
choroidal neovascularization
PE wet macular degeneration
new, abnormal choral vessels
sx macular degeneration
bilateral, progressive central vision loss
metamorphopsia (straight lines appear bent)
dx macular degeneration
funduscopy
fluorescein angiography
amsler grid (shows metamorphopsia)
tx dry macular degeneration
zinc and vitamins C and E to slow progression
tx wet macular degeneration
VEGF inhibitors - Bevacizumab, Ranibizumab, Aflibercept - decrease new vessel formation
sx menieres dz
episodic peripheral hearing loss
unilateral fluctuating sensorineural hearing loss
tinnitus
ear fullness
horizontal nystagmus
N/V
what should you rule out when someone presents w sx of Menieres dz
syphilis (FTA-ABS)
tx menieres dz
sodium, caffeine, nicotine, chocolate, alcohol restriction
antihistamines (Meclizine)
diuretics (hydrochlorothiazide)
cholesteatoma
abnormal keratinized collection of desquamated squamous epithelium in the middle ear or mastoid that can lead to bony erosion of the mastoid
MC causes of cholesteatoma
chronic middle ear dz
Eustachian tube dysfunction
sx cholesteatoma
painless otorrhea - brown or yellow discharge w a strong odor
hearing loss
PE cholesteatoma
otoscope - granulation tissue (cellular debris)
conductive hearing loss - weber - heard in affected ear; rinne - BC > AC in affected ear
tx cholesteatoma
surgical excision of debris (tympanoplasty and reconstruction of ossicular chain)
MC cause nasal polyps
allergic rhinitis
tx nasal polyps
intranasal corticosteroids
MC cause otitis externa
pseudomonas aeruginosa
sx otitis externa
ear pain and erythema
pruritus in ear canal
PE otitis externa
edema and pain on traction of ear canal or trigs, purulent auricular discharge
dx otitis externa
edema of external auditory canal on otoscope
tx otitis externa
ciprofloxacin-dexamethasone, Ofloxacin
peak age acute otitis media
6-24 mos
causes acute otitis media
s pneumonia
h influenza
m catarrhalis
MC proceeded by virus
PE acute otitis media
bulging and inflamed TM w effusion, loss of landmarks
decreased TM mobility (most sensitive)
tx acute otitis media
amoxicillin
papilledema
optic nerve (disc) swelling secondary to increased intracranial pressure (usually b/l)
funduscopy papilledema
swollen optic disc w blurred margins
tx papilledema
acetazolamide
parotitis
acute infxn of parotid gland (bacterial or viral)
MC cause parotitis
staph aureus
RF parotitis
dehydration
poor oral hygiene
sx bacterial parotitis
abrupt onset of unilateral, firm, erythematous, painful swelling from the pre auricular area to the angle of the mandible
purulent drainage from Stenson gland on exam
should patients be admitted for acute bacterial parotitis
yes
tx community acquired bacterial parotitis
ampicillin-sulbactam or cefuroxime and metronidazole
add Vancomycin or Linezolid if MRSA
tx hospital acquired bacterial parotitis or immunocompromised
vancomycin or linezolid and either cefepime and metronidazole, imipenem, meropenem, or piperacillin-tazobactam
duration abx tx parotitis
10-14 days
when is I and D considered for parotitis
no improvement within 2-3 days
peritonsillar abscess is also called
quinsy
peritonsillar abscess is often
polymicrobial
sx peritonsillar abscess
ill appearing
severe unilateral pharyngitis
dysphagia
odynophagia
high fever
malaise
ear pain
muffled hot potato voice
drooling
trismus (lockjaw)
PE peritonsillar abscess
swollen or fluctuant tonsil, causing usual deviation to the contralateral side
tx peritonsillar abscess
needle aspiration preferred or I and D
abx - oral augmenting or clindamycin; parenteral ampicillin-sulbactam or clindamycin
tonsillectomy if fail to respond to drainage
MC overall cause of pharyngitis
viral
MC bacterial cause pharyngitis
Group A strep
PE streptococcal pharyngitis
enlarged tender anterior cervical lymphadenopathy
tx streptococcal pharyngitis
pcn
complication of streptococcal pharyngitis
rheumatic fever
pterygium vs pinguecula
pterygium - slow growing thickening of the bulbar conjunctiva that may extend onto the corneal surface
pinguecula - slow growing thickening of the bulbar conjunctiva that remains confined to the conjunctiva
RF pterygium
UV light exposure in sunny climates (tropics)
snad, wind, dust exposure
sx pterygium
elevated, superficial fleshy, triangular-shaped growing fibrovascular mass that usually starts medially (nasal side of the eye) and extends laterally
tx pterygium
obsevation
surgical removal if it affects vision
sx retinal detachment
photopsia (flashing lights) w detachment followed by floaters (spots in visual fields) followed by progressive UNILATERAL PERIPHERAL vision loss: shadow or “curtain coming down”
no pain/redness
funduscopy retinal detachment
retinal tear - detached tissue flapping in vitreous humor
positive shakers sign - clumping of brown-colored pigment vitreous cells in the anterior vitreous humor resembling tobacco dust
is retinal detachment an emergency
YES
keep pt supine while awaiting for ophthalmology consult w the head turned toward the side of the detachment
no miotic drops
sx retinal artery occlusion
sudden, painless, unilateral acute visual loss usually attributed to ischemia or thrombus
small unilateral pupil on affected side
retinal artery occlusion causes
embolism from Afib
atherosclerosis
ruptured plague from same side carotid
funduscopy central retinal artery occlusion
cloudy, pale retina
cherry red spot in fovea
attenuation of vessels
tx central retinal artery occlusion
ophthalmology referral
ocular massage to affected eye
sx retinal vein occlusion
sudden acute monocular vision loss
CV risk factors - DM, HTN, polycythemia vera
funduscopic exam retinal vein occlusion
optic disc swelling
retinal hemorrhages**
dilated/tortuous veins –> blood and thunder appearance
tx retinal vein occlusion
laser therapy
VEGF
retinopathy
causes decreased/blurred vision
findings for nonproliferative diabetic retinopathy
micro aneurysms (visible as red dots)
cotton wool spots (fluffy white patches on retina)
hemorrhages
hard exudates
findings for proliferative diabetic retinopathy
micro aneurysms
cotton wool spots
hemorrhages
hard exudates
neovascularization!!!!
findings for hypertensive retinopathy
AV nicking
silver wiring
tx non proliferative diabetic retinopathy
glucose control
tx proliferative diabetic retinopathy
anti VEGF (Ranibizumab, Bevacizumab)
peripheral retinal photocoagulation
surgery
tx hypertensive retinopathy
blood pressure and lipid control
laser therapy
tympanic membrane perforation may lead to
cholesteatoma
sx tympanic membrane perforation
sudden pain relief w bloody otorrhea
tx tympanic membrane perf
observation
ofloxacin in some
avoid water and topical aminoglycosides