Earache + Epistaxis Flashcards

1
Q

Bacteria causing OM

A

S. pneumonia
H. influenza
M. Catarrhalis

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2
Q

Classes of abx used for OM

A

Penicillin (B-Lactams)
Cephalosporins
Macrolides
Sulfonamides

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3
Q

Treatment of OM with tubes present

A

Ciprodex ear drops

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4
Q

Approach to hearing loss - types + causes

A

1) Conductive
Normal otoscopic exam
- Otosclerosis
Ear canal abnormalities
- Cerumen impaction
- FB
- Otitis externa
- Neoplasm
Abnormalities on or behind ™
- Membrane perforation
- OM
- Middle ear effusion
- Glomus tumor (unilateral, pulsatile tinnitus, bulging red mass behind ™)
- Cholesteatoma
2) Mixed
- Otosclerosis
- Chronic OM
- Neoplasm
- Temporal bone trauma
- Inner ear malformations
3) Sensorineural
Gradual onset
- Presbycusis
- Noise induced
- Drug induced (aminoglycosides, macrolides, glycopeptides, chemo drugs, NSAIDs, ASA, antimalarial, loop diuretics)
- Cerebellopontine angle tumor (acoustic neuroma)
Progressive onset
- TORCH infections
- Genetic
Fluctuating
- TORCH infections
- Meniere’s
- Endolymphatic hydrops

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5
Q

Approach to tinnitus - categories + causes

A

Pulsatile:

Pulse synchronous w/ HR:
Idiopathic intracranial HTN
Systemic HTN
Arterial bruits
Venous hum
Arteriovenous malformation
Vascular tumors

Pulse asynchronous:
Middle ear muscle myoclonus
Palatal muscle contraction
Eustachian tube dysfunction

Nonpulsatile:

Unilateral hearing loss:

Neuro signs:
Brainstem infarct
Cerebellopontine angle tumor
MS

No neuro signs:
Chronic noise exposure
Acoustic trauma
Meniere’s

Abnormal otoscope findings:
Cerumen impaction
OM
™ perforation
Cholesteatoma

Bilateral hearing loss:
Presbycusis
Noise exposure
Otosclerosis

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6
Q

Where do you get otalgia referred pain?

A

TMJ
Tonsils
Throat
Tube (Eustachian)
Teeth
Tongue
Trachea
Thyroid
Tics
Tendons
Trigeminal Neuralgia

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7
Q

Pathogens causing OE

A

pseudomonas, staph aureus, fungal, herpes zoster

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8
Q

RF for OE

A

humidity, warm temps, swimming, local trauma, hearing aid, immunocompromised

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9
Q

Sx of OE

A

pruritus, pain, fullness, erythema

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10
Q

Prevention of OE

A

dry ear canals after swimming, avoid cotton swabs, alcohol drops during high risk times, hair dryer use

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11
Q

Rx OE

A

No perforation: polysporin eye + ear 1-2 drops QID
Perforation: ciprodex otic suspension 4 drops BID
Fungal: clotrimazole 1% cream BID

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12
Q

Age peak for OM

A

6-9mo

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13
Q

RF for OM

A

daycare, male, family hx, enlarged tonsils, cigarette smoking, first nations

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14
Q

Sx of OM

A

acute onset middle ear fluid + inflammation, earache, fever, vomiting, rhinitis, Bulging tm

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15
Q

Physical findings OM

A

bulging TM, perforation, effusion behind TM, loss of TM landmarks

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16
Q

Complications of OM

A

mastoiditis, meningitis, intracranial abscess, facial paralysis

17
Q

Rx for OM (<6mo, >6mo w/perf, w/bulging TM, w/middle ear effusion)

A

> 6mo, perforated TM w/ purulent DC = amox
6mo, middle ear effusion + bulging ™, mild = observe, ensure FU, if not improving = amox
6mo, middle ear effusion + bulging ™, mod = amox
6mo, no middle ear effusion = reassess in 24-48 hrs
<6mo: amoxicillin
If recurrent in kids, test for hearing loss

18
Q

When to refer OM

A

OME >3mo w/ bilateral hearing loss
>3 episodes in 6 mo
>4 episodes in 12 mo
Retracted ™
cleft palate

19
Q

DDx for otalgia

A

Tooth abscess
Trigeminal neuralgia
TMJ dysfunction
Pharyngitis
Tumors
Temporal arteritis
Mastoiditis

20
Q

Sx TMJ dysfunction

A

Unilateral dull ache radiating to ear + jaw, worse w/ chewing
Locking of jaw
Ear clicking/ popping
Increasing pain through day
Limited jaw opening
Palpable muscle spasm

21
Q

Rx TMJ

A

NSAIDs
TCAs

22
Q

Location of epistaxis - most common, names

A

90% anterior (Kiesselbach’s - blood supply from internal and external carotid), 10% posterior (sphenopalatine - more common in elderly)
Anterior nose is also called Little’s area

23
Q

Causes of epistaxis

A

Nose picking
Trauma
Infectious (cold, sinusitis)
Medications: ASA /clopidogrel/ NSAIDs/ Vitamin K antagonists (warfarin, dabigatran etc) /steroids (oral, topical nasal spray)
Alcohol use (may increase risk)
Post-operative
Intranasal neoplasm (juvenile nasopharyngeal angiofibroma - facial swelling, pain)
Allergic or viral rhinitis (causes mucosal hyperemia)
Coagulopathy/bleeding disorder
Chronic intranasal drug use (cocaine or Rx drug)
Hypertension

24
Q

Ix + when to do it for epistaxis

A

for recurrent epistaxis, severe, <2y/o, systemic sx, family history:
CBC, INR, PTT, ferritin
Group + screen
Bleeding disorder testing
Liver dysfunction

25
Q

Management of epistaxis

A

Assess hemodynamic stability, secure airway
Anterior rhinoscopy to identify source of bleeding
Lean forward
Prolonged pressure on distal nares (10-20 min)
Anterior and/or posterior packing soaked in topical decongestant
Pack nares from posterior to anterior with ribbon with neosporin
Packing methods: with lubricated gauze/“Rhino Rocket”/ Merocel /Foley catheter/Balloon
Vasoconstrictors: lidocaine + phenylephrine
Decongestants: oxymetazoline (topical decongestant)
Cautery – Silver nitrate x30s or electrical cautery
Surgical arterial ligation

26
Q

Prevention of epistaxis

A

Emollient application
Humidification
Topical vasoconstrictors
Nasal cautery
Oral propranolol

27
Q

How to assess tinnitus + what Ix to order?

A

Auscultate for bruits over neck, mastoid and preauricular area
Otoscope examination
Neurological examination

Order MRA + venogram of brain + neck

28
Q

RF for AOM

A

maternal smoking, daycare, pacifier use, bottle feeding

29
Q

Dx criteria for AOM

A

effusion, inflammation and acute sx

30
Q

Rx for AOM in penicillin allergy

A

penicillin rash = cefuroxime, anaphylaxis = clarithromycin

31
Q

Rx for AOM w/ treatment failure

A

clavulin or IM ceftriaxone

32
Q

Indications for ventilation tubes

A

recurrent AOM 6/yr or chronic OME >3mo or retracted TM

33
Q

Management of mild epistaxis

A

blow nose, 2 sprays oxymetazoline, pinch x10 mins