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ATOPIC DERMATITIS IN THEDOGby Roosa Hentunen,Veterinary medicine first year2011
OUTLINE Allergy What is atopic dermatitis? Symptoms Making the diagnose Testing Treatment Specific therapy References
ALLERGY Allergens enter to the system and crab to the IgE antibodies. The mast cell covered by IgE releases its mediators. Follows itching and swelling. Atopic dermatitis and its symptoms are based on allergic reaction
WHAT IS THE ATOPIC DERMATITIS? A skin disease Immune system over reacts with allergic reaction Harmless things, for example dust mites, are seen as allergens Appears usually in the first two years of the dog’s life Somehow heritable, research is still going on
SYMPTOMS Licking, scratching and chewing of skin, paws, abdomen and perineum Reddened and hot ears Baldness of the skin Saliva staining Skin and coat change color Between symptom periods the skin looks normal With more damage to the skin, secondary infections may follow
MAKING THE DIAGNOSE No specific test to confirm the diagnose Other skin problems must be ruled out:1. Parasites2. Food allergy3. Infections Once the diagnose is confirmed, start skin testing
SKIN TESTING Identifys the allergens involved to the disease Small area of the coat is shaved Possible allergens are injected in to the skin Reactions are followed If diagnose is positive, start treatment
TREATMENT Think the situation as a whole Treat away other skin problems:1. Yeast and bacterial infections2. Ectoparasites Make the dog’s life as comfortable as possible; less therapy needed
SPECIFIC THERAPY Many drugs are used together Essential fatty acids Antihistamines Steroids Hyposensiting vaccines Allergen avoidance
REFERENCES Stephen Shaw, BVetMed, CertSAD, MRCVS http://www.priory.com/vet/vetatop1.htmThank you for watching!