Rhinology Flashcards
The only treatment proven to alter the disease course of allergic rhinitis?
IMMUNOTHERAPY
Most effective combination treatment for allergic rhinitis
Intranasal corticosteroids and intranasal antihistamines
Three pathways to complement activation
- Classic pathway : An-Ab complex
- Alternative pathway : microbial structures
- Lectins pathway : Mannans (in microbial walls)
Complement deficiency and their corresponding disease
- MAC : Neisseria infections
- C3 : pyogenic infections
- C2/4 : lupus like syndrome
- C1 : mast cell independent angioedema
Has clinical phenotype of allergic rhinitis but negative skin or serologic test, positive nasal response on antigen challenge
Local Allergic Rhinitis
Old classification of Allergic rhinitis and their definitions
- Seasonal AR: symptoms on exposure with seasonal allergens (ragweed, grasses, outdoor molds, and tree pollens)
- Perennial AR: Sx on exposure 2 hours/day,>9mos/year (house dust mites, indoor molds, animal dander, and cockroaches)
- Episodic AR: Sx on exposure to allergens not usually found in environment (fur allergy)
What comprises of the OMC?
- uncinate process
- ethmoidal infundibulum
- hiatus semilunaris
- anterior ethmoidal cells
- ostia of the anterior ethmoidal, maxillary, and frontal sinuses
Cite the Keros Classification
Type 1: 1-3mm
Type 2: 4-7 mm
Type 3: 8-16 mm
3 dimensional space bounded my uncinate process medically and Latina papyracea laterally
Ethmoidal infundibulum
The maxillary sinus opens into the into the infundibulum at what angle?
45 degree angle
Two-dimensional slit that lies between the free edge of the uncinate process and the ethmoidal bulla
Hiatus semilunaris (inferior semilunar slit)
Most anterior and most constant cell?
Agger nasi cell
An anterior ethmoidal cell that pneumatizes into the orbital floor, may compromise patency of ostium?
Halley cell | Infraorbital cell
The sphenoid sinus ostium is located ___ cm from the nasal spine at an angle of ___ from the floor?
6.2-8cm ; 30-34 degrees
Most consistent endoscopic landmark of the sphenoid ostium
visualization of the lower half of the superior turbinate, staying surgically below the level of the maxillary sinus roof and just over the top of the horizontal basal lamella,