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75 Cards in this Set

  • Front
  • Back
URI of ess than 7 days caused by?
Viral illness - viral rhino sinusitis
Acute bacterial is most likely
Beyond 7-10 days
Three types of sinusitis are
1) CRS wo NP
2) CRS w NP
3). AFRS
Percent with rhinitis and sinusitis in western society?
10-25%
What percent of patients with rhinitis are no allergic
30-50%
Seasonal AR is found in what percent of population ?
10-20% of general population, with greater prevalence in kids
What kind of cells line the nasal cavity and turbinates?
Pseudo stratified columnar ciliated epithelium
What impairs mucociliary clearance?
Infections, allergic inflammation
Allergic rhinitis is commonly caused by?
Proteins and glycoproteins in airborne dust mites, roach, animal dander, molds and pollens
Are rhinitis and asthma interrelated?
Yes they are associated
How does house dust mite contribute to airway inflammation?
Der p 2 mimics MD-2, the LPS-binding component of TLR -4 signaling complex and facilitates TLR 4 signaling and Th2 type inflammation
How are allergens usually processed in the nose?
Processed by APC (DC expressing CD1a CD11c and macs) in the nasal mucosa with presentation of peptides by MHC class II molecules to TCR on CD 4 in LN. T cell is stimulated and release IL 4, 3, 5, 13. This promotes b cell isotype switching to IgE
Immediate allergic response?
Caused by release of histamine, trptase, LT C, D, E and prostaglandin D2 causes mucus production, sneezing itching rhinorrhea
Late phase response?
Nasal congestion, usually occurs 4-8 hours, mediated by cytokines that promote expression of adhesion molecules like ICAM 1, E-selectin, vascular adhesion molecule 1 that promote eos to come in to endothelial cells.
Priming effect?
Decreasing amts of allergen are needed to elicit an immediate response, is associated with mucosal hyper responsive to nonantigenic triggers such as strong odors and cig smoke
Sensitivity to pollen is associated with what?
Ocular symptoms
True or false? Treatment with intranssal steroids in patients with allergic asthma and rhinitis decreases seasonal bronchial hyperreactivity.
True
Examples of non allergic rhinitis without eosinophilia
Aka idiopathic rhinitis
1) vasomotor rhinitis - caused by change in temp, emotions alcohol
Examples of non allergic rhinitis with eos (NARE)
Perennial nasal symptoms, pruritus, loss of smell! Nasal smears have eos 5-20%, no evidence of IgE mediated to environmental allergens. You can see mast cells with bound IgE and increased tryptase levels
Common in middle-aged adults, not childhood
May be early predictor of Nasal polyposis
Are at risk for OSA
What is the order of development of the sinuses?
MEFS (my early frontal sinuses)
maxillary, ethmoid, frontal and sphenoid
What is the name of the artery that supplies upper 2/3 of the nasal septum?
Sphenopalatine artery, called Little's artery
What is the priming effect?
Amt of allergen needed to elicit an immediate response becomes less when allergen challenges are given repeatedly. That explains why people have continuing symptoms despite allergy season going down.
What is local allergic rhinitis?
When people have nasal symptoms, likely has local IgE, but SPT and RAST is negative.
Which mediators cause acute symptoms of AR?
Histamine, PGD2, LT, kinins
which mediators are in the late allergic response of AR?
infiltration with basophils, eos and infiltrating lymphocytes, esp Th2 CD4 T lymphocytes. IL-3, IL-5, IL-4, IL-13, GM-CSF (eosinophil growth factor) and stem cell factor, eotaxin and RANTES. Nasal congestion and mucus production.
What are some culprit medications associated with rhinitis?
ASA, NSAIDs,
Vasodilators (Sildenafil, Tadalafil, Vardenafil
ACE inhibitors
Calcium channel blockers
OCP
antihypertensives
psychotropics
Decongestants
True or False: AR is a risk factor for asthma?
True
AR and pregnancy: Avoidance of decongestants during pregnancy b/c it could lead to what complication during the first trimester?
Gastroschisis
When does rhinitis of pregnancy begin?
Starts usually in the 2nd or 3rd trimester
lasts 6 or more weeks
Resolves within 2 weeks post-delivery
intranasal corticosteroids are not effective
What is vasomotor rhinitis?
AKA irritant rhinitis
Caused by irritants, cold, perfume, odors, dry air
Azelastine may be beneficial
What is gustatory rhinitis?
A form of vasomotor rhinitis but is caused by spicy foods. Can treat with atrovent
What is atrophic rhinitis?
Caused in elderly, may be from frequent sinus surgery,
typically caused by kelbsiella Ozaenae (found in arid countries and in female during puberty)
Paroxysmal nasal congestion and pain
What is the ARIA classifications for rhinitis?
Intermittent if < 4 day/week and < 4 weeks
Persistent if > 4 days per week and > 4 weeks
T or F: greater sleep complaints in AR and there is a risk factor for sleep apnea?
True
What is the function of H4?
H4 are histamine receptors that may be involved in pruritus esp in AD and in inflammation. It causes the chemotaxis of inflammatory cells.
What is Birch cross reactive with in PFAS?
(apple, cherry, apricot, pear, plum) and Apiaceae vegetables (eg, celery, carrot)
The primary allergens causing PFAS in birch-sensitized patients are Bet v 1-cross-reactive antigens and profilins
What is the major foods cross reactive with Mugwort?
celery, onion, mustard and cabbage
What are the fruits and veggies cross reactive with ragweed?
banana, cucumber, canteloupe, watermelon and zucchini
What is NAREs?
AR, with eos, no specific IgE testing that is positive, prone to nasal polyps and this may be a prodrome to AERD. Are at risk for obstructive sleep apnea.
What is Profilin?
profilins are now known to be ubiquitous cross-reactive plant allergens
Hormone induced rhinitis may be associated with which disease?
Hypothyroidism
If neutrophils are found in nasal polyps, you need to remember what?
CF
When d o you think of a nasopharyngeal carcinoma?
bleeding in an adolescent male, nasal pain, typically unilateral think Juvenile angiofibromas.
Which sinuses drain through the osteomeatal complex?
Frontal, anterior ethmoid, maxillary
What drains into the sphenoethomiodal recess?
Ethmoid and sphenoid sinuses
What types of nasal polyps are found in those with AERD and asthma?
Bilateral eosinophilic polyps
High levels of LTC4 synthase and IL-5
Increased cysLT receptors on inflammatory cells in the nasal polyps
Upregulation of CysLTs, LXA4 and PGD2
Treatment: Avoidance of ASA, leukotriene receptor antagonists, steroids and ASA densitizations.
What are some other causes of CRS with nasal polyposis other than asthma and AERD?
DM allergy, AFRS, eosinophils
Is CRS with nasal polyposis usually associated with bacteria?
Not typically except for local production of staph enterotoxins in NPs which may increase local IgE production and eosinophilic inflammation via Th2 skewing.
Neutrophils found in nasal polyps is associated with what?
CF, PCD and CSS
What types of transcription factors are found in CRS with NP?
Increase in GATA3 and Tbet. There is decrease in FOXP3 cells and therefore lack of Treg cells.
Describe the difference between these
1) Acute rhinosinusitis < 10 days, > 10 days
1) < 10 days is typically viral
2) > 10 days is typically bacteria, esp if getting worse after 5 days. These are acute so lasts < 12 weeks.

CRS is > 12 weeks
What is the microbiology of Acute bacterial rhinosinusitis?
1) Strep pneumo
2) H flu

These are the 2 most common
What is the microbiology of acute bacterial rhinosinusitis in children?
1) moraxella catarhallis
2) strep pneumo
3) H influ
How can a Haller cell lead to CRS?
Haller cells can block the osteomeatal complex
What inflammatory mediators are associated with acute rhinosinusitis?
IL-1B, IL-6 and IL-8
What inflammatory mediators are associated with chronic rhinosinusitis?
IL-3, GM-CSF, ECP
What inflammatory mediators are associated with nasal polyposis?
IL-5, IgE and Eotoaxin
Patients with CCRS with NP have low levels of what?
High levels of what?
Low of PGE2, high of LTC4, D4 and E4
what inflammatory mediators are highest in ASA with NP? What is lowest?
LTC4, LTD4 and LTE4
Lowest is PGE2
Which type of CRS has the highest levels of Lipoxin?
CRS-NP and CRS-ASNP (asp sensitivity)
What types of changes do you see in CRS with NP in terms of IL?
IL-5, IL-13 and see decreased TGF beta.
Mediators linked to eosinophil activation are impt such as GM-CSF, IL-3 and IL-5

This is a Th2 cyokine profile
What is CRS without Nasal polyps profile look like?
Th1 cytokine profile. Increased IFN gamma and TFGB and birosis.
Inflammation is neutrophilic due to increase in IL-1B, TNF-alpha, and IL-8
What are the current treatment regiments for AOM?
1) If < 6 months, treat with antibiotics
2) Between 6 months to 2 years, if dx is certain, treat if treat if severe (>39 C and otalgia) . If dx is uncertain, then can observe for 48-72 hours
3) If greater than 2, antibacteria therapy if severe (> 39 and otaliga). If non severe, observation. If uncertain dx observation
what is considered a certain diagnosis of AOM?
1) rapid onset, 2) signs of middle ear effusion 3) signs and symptoms of middle ear inflammation
Otitis media with effusion carries what characteristics?
Presence of fluid in the middle ear without signs and symptoms of acute infection. May occur spontaneously due to poor eustacean tube function or after AOM.
-90% of children with OME before school age
- 30-40% of children have recurrent OME
-5-10% of children have OME > 1 year
Otitis media with effusion means what in children and what in adults?
In children it can be common, it can be an incidental finding, often resolves within 3 months. Rarely seen in adults and if present, could indicate a structural abnormality such as a tumor.
Is there a link between OME and atopic disease?
Yes, there is suggestion that allergic rhinitis could be a cause for this.
What is the leading cause of hearing loss in children?
OME and it may be associated with language delay in children under 10 years of age. The average hearing loss from OME is 25 dB.
A flat tympanogram can indicate what?
OME or a perforated tympanic membrane, cholesteotoma or there is a tube in
A left sided shift in the tympanogram indicates what?
Serous OM, acute resolution of OM
Those with AR are at risk for otitis media with effusion?
True
What is the management of OME? When does it become surgical?
Monitor every 3 months, baseline hearing test. Indications for tympanostomy tube is OME with structural damage, persistent OME of at least 4 months with physical and behavior problems and reduced child quality of life, hearing loses of 40 db or greater. If repeat surgery is needed, and adenoidectomy should be included plus myringotomy
What are risk factors for OME that makes it more likely a child will need an intervention?
Permanent hearing loss independent of OME
Speech or language delay
Down syndrome
Carniofacial disorders that include speech, cognitive and laugage delays
Blindness
Cleft palate
DD
What are complications with OME?
Hearing loss
Atelectasis
Retraction
Cholesteatoma- the most serious complication.
What is a cholesteatoma?
It is a destructive and expanding keratinizing squamous epithelium in the middle ear and or mastoid process. Causes conductive hearing loss, with potential for ossicle destruction. Untreated may lead to deafness, mastoiditis, brain abscess, meningtis and rarely death.