Nose/Upper Resp Flashcards
Risk factors for allergic rhinitis
Family history of atopy (ie, the genetic predisposition to develop allergic diseases)
• Male sex
• Birth during the pollen season
• Firstborn status
• Early use of antibiotics
• Maternal smoking exposure in the first year of life
• Exposure to indoor allergens, such as dust mite
allergen
• Serum IgE >100 int. units/mL before age six
• Presence of allergen-specific immunoglobulin E (IgE)
allergic rhinitis pharmacotherapy
• Oral antihistamines – First line 2nd gen: Loratidine, cetirizine – Second line 1st gen: Diphenhydramine, hydroxyzine • Intranasal Corticosteroids – Fluticasone, Triamcinolone • Topical Nasal Antihistamines – Azelastine, Olopatadine • Ø Decongestants • Nasal Cromolyn – LesseffectivethanINCS • Leukotriene Modifiers – Montelukast
persistent or moderate to severe s/sx allergic rhinitis tx
• INCS as first line therapy. (intranasal corticosteroid)
– Start at the maximal recommended dose
for age, and then taper to the lowest effective dose once symptoms are controlled.
• If INGCs alone are not sufficient to control rhinitis symptoms, suggest adding an oral or topical second generation antihistamine .
recurrent sinusitis definition
> 3 episodes of <30 days duration separated by intervals of ≥10 days without symptoms in a 6-month period, or >4 such episodes in a 12-month period; individual episodes respond briskly to antibiotic therapy
acute (symptoms resolve in < 30 days)
subacute ( > 30 days and < 90)
chronic (>90 days)
bacteria causing sinusitis
-8% of URIs
S. pneumo (30%)
- HiB (20-30%)
- Moraxella catarrhalis (10-20%)
bacterial sinusitis persistent symptoms (most common)
• Persistent symptoms (most common)
– Nasalsx,cough or both for > 10 days but < 30 that are not improving
– Some with uncomplicated URIs have residual resp sx at the 10 day
point….ABS sign these sx must be persistent without improvement.
severe bacterial sinusitis
combination of high fever (39C) and concurrent purulent nasal discharge for at least 3-4 consecutive days in a child who appears ill
worsening symptoms
– Uncomplicated URI that around day 6-7 of illness the child becomes acutely ill and worse.
-cough must be present during the daytime (diurnal), although it is often described to be worse at night
Complications of ABS
- preseptal (periorbital) cellulitis
- orbital cellulitis
- septic cav sinus thrombosis
- meningitis
- osteomyelitis
- epidural abscess
pre septal (periorbital cellulitis)
Mild complication characterized by swelling and erythema of the lids and periorbital area; there is no proptosis or limitation of eye movement.
periorbital swelling is sign of ethmoid sinusitis
orbital cellulitis
Pain with eye movement, conjunctival swelling (chemosis), proptosis, globe displacement, limitation of eye movements (ophthalmoplegia), double vision, vision loss.
ABS Diagnosis: Major criteria
- Facial pain/pressure*
- Facial congestion
- Nasal congestion
- D/c
- Hyposmia or anosmia
- Fever*
- Purulence
ABS minor symptoms (not to be used for diagnosis)
Headache • Fever • Halitosis • Fatigue • Dental pain • Cough • Ear pain/pressure/fullness
uncomplicated ABS diagnosis
Clinical course suggestive of bacterial rather than viral infection:
– Symptoms present without improvement for >10 and <30 days, or
– Severe symptoms (ill appearance, temperature ≥39oC (102.2°F), and purulent nasal discharge for ≥3 consecutive days), or
– Worsening symptoms (increase in respiratory symptoms, new onset of severe headache or fever, or recurrence of fever after initial improvement)
• Uncomplicated ABS (not severe) + no day care + have not been treated with an antimicrobial in the preceding 90 days:
– Amoxicillin (45-90 mg/kg/day) in 2 divided doses
– Amoxicillin-clavulanate (45-90 mg/kg/day) in 2 divided doses