4 - Nose Flashcards
Nose hole anatomy
Slide 5, 6, 7, 8
Ostiomeatal complex (OMC)
Channel that links the frontal sinus, anterior ethmoid air cells and maxillary sinus to the middle meatus, allowing air flow and mucocilary drainage
Essentials of diagnosis for acute viral rhinitis?
Clear rhinorrhea
Hyposmia
Nasal congestion
Malaise
HA
Cough
Erythematous engorged nasal mucosa
W/o intranasal purulence
How long does the common cold last?
Generally 3-10 days but symptoms should be better in
- 10 days to 4 weeks
Self limited
Fever with viral rhinitis?
Not common
Complications for viral rhinitis?
Usually
- Benign and self limited
ETD
Otitis media w effusion
Acute bacterial sinusitis
Tx for acute viral rhinitis?
Z pack
Jk dont do that
Symptomatic or zinc (75mg) (controversial)
- nasal irrigation
- decongestants
Acute bacterial rhinosinuitis (ABRS) essentials?
Purulent yellow/green discharge/expectorant
Facial pain/pressure
Nasal obstruction
Acute onset
What causers ABRS?
Impaired mucociliary clearance and obstruction of the ostiomeatal complex
Oatmeal complex is clogged
This gets infected in the sinuses
Predisposing symptoms for ABRS?
URI
Allergies
Mechanical obstruction (deviated septum)
MC community and hospital acquired bacteria for ABRS?
Community:
- S pneumonia
- H influenzae
Hospital:
- pseudomonas
- S. Aureus
Presentation of ABRS?
Facial pain/pressure Fever Cough Hyposmia/anosmia Purulent nasal discharge Nasal congestion Maxillary tooth discomfort
ABRS vs AVRS?
AVRS - complete resolution in 7-10 days
ABRS - no good criterai but may see
- 10+ days
- > 102*F
- purulent discharge/pain x 3-4 days
Classification of ABRS?
Acute <4 weeks
Subacute: 4-12 wks
Chronic: >12 wks
Recurrent: >/= 4 per yr
MC paranasal sinusitis?
Acute maxillary sinusitis
Acute maxillary sinusitis specific sx?
- Unilateral facial fullness
- tenderness over cheeks
Can mimic Acute maxillary sinusitis pain?
Tooth infection can refer to the maxillary sinus via CN V
Acute ethmoid sinusitis sx?
Localized pain/pressure over high lateral wall of nose between eyes
- may radiate to orbit
Acute sphenoid sinusitis?
HA “in the middle of the head”
- pt often points to vertex
Acute frontal sinusitis
Tenderness of the forehead
- easily elicited by palpation
Hospital associated sinusitis
May be the cause of fever in critical pts
Associated w prolonged NG tube
PE for acute rhinosinusitis?
Pain in sinuses when bending forward
Direct percussion/palpation
Rhinoscopy
- diffuse mucosal edema
- narrowing/hypertrophy of middle meatus
- septal deviation or polyps
- purulent rhinorrhea
Imaging for acute rhinosinusitis?
Not really indicated but:
- CT test of choice
- NOT Xray
Tx of ABRS
Basically same as AVRS
Analgesics Saline irrigation Decongestants Topical decongestants Intranasal corticosteroids
Abx - (controversial in uncomplicated cases)
Abx for ABRS?
Amoxicillin-clavulante (first line)
PCN allergy (pick 1)
- doxy
- clinda
For ABRS never use?
Macrolides (azithromycin) or TMP/SMX due to high rates of resistance and poor sinus penetration
Which pts get abx for ABRS?
> 10 days
Severe symptoms
Symptoms worsen after period of improvement
If <7 days; symptomatic tx only
Complications of ABRS?
Orbital cellulitis
Osteomyelitis
- “pott puffy tumor”
Intracranial extension (rare)
If you suspect orbital cellulitis you should?
Get a CT
IV abx
Surgery
Stat opthalmology consult
Intracranial extension pts need?
MRI of the Danger triangle
What is intracranial extension?
Hematogenous spread as in cavernous sinusthrombosis and meningitis Sx - opthalmoplegia - chemosis - visual loss
Intracranial extension can have direct extension. What does this mean?
Can become epidural and intraparenchymal brain abscess
When to refer ABRS?
Failure to respond to abx Suspected extension outside sinus Facial cellulitis Proptosis Immunocompromised pts
What is nasal vestibulitis/S. Aureus nasal colonization
Infection caused by colonization of S. Aureus (MC)
Beware the danger triangle
Tx for nasal colonization?
Dicloxacillin 250mg qid 7-10 days
Mupirocin nasally
Chlorhexidine facial wash bid
Invasive fungal sinusitis is aka?
Rhinocerebral mucormycosis
What is invasive fungal sinusitis?
Aspergillus or similar in the vascular space causing tissue necrosis
Found it your immunocompromised pts
- DM
- long term corticosteroids
- mustache wearing
Sx of invasive fungal sinusitis?
Similar to abrs though pain is more severe