1 rhinitis dr. mohammad aloulah. 2 definition of rhinitis rhinitis is inflammation of the lining of...
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RhinitisRhinitis
Dr. Dr. MohammadMohammadAloulahAloulah
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Definition of RhinitisRhinitis is inflammation of the lining of the
nasal cavity. As the lining of the nasal cavity and the para nasal sinuses is continuous, inflammatory process tend to involve both areas to a greater or lesser extent.
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Classification of RhinitisAllergy-Seasonal ,Perennial, food related ,drug induced
Infectious-Acute-Chronic
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Allergic rhinitis
Its an IgE mediated hypersensitivity response to allergen lead to rhinitis ,associated allergic conjunctivitis and asthma may occur.The disease is common ,prevalence depend on age ,gender, geographical distribution
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Allergic rhinitis classification
1. Intermittent (Seasonal)2. Persistent (Perennial)3. Mild4. Moderate - severe
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Seasonal rhinitis
1. Also known as intermittent rhinitis2. It usually lasts less than 4 days a week3. The whole disorder lasts for about a month4. Usually caused due to exposure to seasonal Allergens like pollen5. Common during spring when flowers bloom
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Perennial rhinitis
1. Also known as persistent rhinitis2. Symptoms last for more than 4 days a week3. Whole disorder lasts for more than a month4. This is due to continuous exposure to allergen. eg. House dust mite
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Mild allergic rhinitis
Allergic rhinitis is considered to be mild if the symptomsDoes'nt cause:Sleep disturbanceImpairment of daily activityImpairment of workTroublesome symptoms
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Moderate allergic rhinitis
This includes one or more of the following:
Sleep disturbanceImpairment of daily activityImpairment of workTroublesome symptoms
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Allergic rhinitis pathophysiology
The reaction occurs in 4 phases1. Sensitization2. Subsequent reaction to allergen – early phase3. Late phase reaction4. Systemic activation
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Pathological change
Local mucosal change-edema-infiltration with eosinophils and plasma cells-watery discharge-vascular dilatation-polypi-Superadded infection
Involvement of sinuses-generalized thickening -polypi in the sinuses( single or multiple)-fluid effusion in the sinuses
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Etiology of Allergic Rhinitis :
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Dust mite
Fel d1
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Clinical features:- Sneezing , may be in paroxysm.- Rhinorrhea - nasal obstruction and loss of smell- Itchiness of nose ,eye,palate- Tearing ,itching ,redness of eyes- Burning sensation in the throat.- symptom related to asthma (cough,shortness
of breath, wheeze)
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Occupational allergins
Rhinitis may occur as a consequence of allergins inhaled in work place frequently associated with asthmaBiological agent include flour (in baker ,grain worker), laboratory animal ,wood dust,biological washing powder,latexChemical agent
-paint manufacturer and painter (spray) -platinum salt in platinum refiner -drugs in pharmaceutical worker
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Food induced rhinitisIt’s a rare cause of allergic rhinitis, symptom of rhinitis often associated with urticaria, angioedema and GIT symptomFood may occasionally provoke IgE induced rhinitis In children Milk, egg, cheese,In adult nuts ,fish, shellfish, citrus fruit
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ExaminatonGeneralLocal ENT examination :allergic nasal mucosa appear pale or bluish, boggy with swelling and watery discharge. there may be polyp, structural (septal deviation ,prominent turbinate).Systemic
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Investigations1- Skin Tests: it’s a primary tool in the investigation of allergy .its positive in seasonal rhinitis ,less than 50%in others
it consist of pricking skin ,with special needle few drops of allergin .Appearance of wheal and flare in 15-20 min ,the size of wheal is usually equal or greater than 3mm and interpreted by positive and negative control Antihistamine should be discontinued 3-6 days before test Intradermal test is rarely used because of extensive tissue reaction or anaphylaxis
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Skin prick test
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Laboratory tests:
Laboratory tests:
-nasal cytology ,eosinophil count in nasal secretion,blood
-IgE level
measurement (total)
Specific(RAST,ELISA,
cap test)
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A raised IgE level usually confirm allergic constitution but it is neither sensitive nor specific
Elevated level seen in smoker and parasitic infestation
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treatmentAvoidance of allergins .
Drugs .
Immunotherapy (desensitization) .
Surgery .
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Type of drug Drug and administration
Antihistamines Systemic :sedating , non sedating
Steroid Topical : beclomethazone,
fluticasone
Systemic (short course)
Alpha receptor agonist
(decongestant)
Topical :psudoephedrine
Systemic :xylometazoline
Mast cell stabilizer Topical :cromoglycate
Systemic :ketotifin
Anticholenergic Topical :ipratropium
Systemic :hyoscine
Anticholenergic/
sympathmemetic
Systemic: imipramine ,
chlorpheneramine
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Desensitization :
• it consist of injection of allergin in increasing dose S.C to be tolerated by the subject.
• Sublingual allergin available ,its popular but less effective .
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surgery
Polypectomy
Reduction surgery of inferior turbinate
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Drug Induced RhinitisNSAIDBeta blockersACEIOral contraceptives
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Rhinitis MedicamentosaThe condition is the result of over medication with local
nasal decongestants casusing rebound phenomenon occurs resulting in turbinate hypertrophy. If the decongestant treatment is repeated the condition become rapidly self-perpetuating and a chronic nasal obstruction unresponsive to decongestant results. The treatment is immediate cessation of the decongestant with replacement by nasal or systemic steroid. If this is not successful then inferior turbinectomy may be required.
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Hormonal induced rhinitis
Menstruation ,pregnancy
Untreated hypothyroidism
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Infective Rhinitis
Non Specific: *infections of ext.nose*Coryza ( commone cold )*Influenza Specific Erysipe
lasGlandersAnthrax
candidiasis
Gonorrhea
Diphtheria Syphilis
Acute rhinitis
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Chronic rhinitis
Glanders Rhinoscleroma
diphtheria
Sarcoidosis
Lupus Vulgaris
T. B
Gangosa
SpecifiSpecificc
Syphillis
Fungi
Rhinitis sicca
Atrophic
Simple chronicnon specificnon specific
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Infections of external nose
Furunculosis Infection of hair follicles Hard tender painful red Cavernous sinus thrombosis Local heat application Systemic A.B. Paranteral A.B. (if large or cellulitis)
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Vestibulitis :
inflammation of nasal vestibules
Usu. Staf. AureusCoryzaAtopyUnilateral :F.B.
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Herpis zoster :Ophthalmic branch of trigeminal n.
Cheek ,palate & vestibule
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Thank youThank you