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20 Cards in this Set
- Front
- Back
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How can you diagnose cutaneous parasites
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Direct observation
skin scrapings |
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What are general guidelines for cutaneous parasite treatment
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duration >> life cycle
treat all animals clean and disinfect environment consider human risk with treatment |
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What are the follicular mites occur on the dog
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Demodex canis - MOST common mite in dogs
D. injai |
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What are the follicular mites occur on the cat
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Demodex cati
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What are the surface mites occur on the dog
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D. cornei
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What are the surface mites occur on the cat
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Demodex gatoi - MOST common mite in cats
Contagious! |
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What is the pathogenesis of Demodicosis
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normal commensal passed after birth
overgrowth associated with mite specific immunoincompetency suppresion of T lymphocytes secondary infections (pyoderma) additional immunosuppression |
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When is Demodicosis most common
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<1 year of age (can outgrow)
all animals at risk |
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What is localized demodicosis
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Lesions restricted to one or two body areas (face)
Lesion: alopecia, erythema, mild scaling not pruritic |
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How do you treat localized demodicosis
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treat secondary pyoderma with ab
90% spontaneously resolve topical treatment (1-3% benozyl peroxide) may make lesion look worse initially - rub out hairs lesion persists - miticidal treatment |
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What are the characteristics of generalized demodicosis
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Multiple lesions (anywhere) - alopecia, scaling, crusts, pustules, erythema, draining tract
bacterial infection with Staph folliculitis and furunculosis (causes pruritis) |
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What causes pruritis with Demodicosis
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secondary pyoderma
not Demodex itself |
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what is the key sign of furunculosis
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Small draining tracts
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What are the characteristics of adult onset demodicosis
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1-2 years of age
50% identifiable systemic disease - immunocompromised caused by any mite species |
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How do you diagnose demodicosis
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history and clinical features
skin scrape trichogram biopsy |
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How do you treat localized demodicosis
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Time
Topical: benzoyl peroxide, rotenone, amitraz Advantage multi dont treat |
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How do you treat generalized demodicosis
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-treat underlying pyoderma - systemic antibiotics, topical antimicrobial / antiseborrheic shampoo; hydrotherapy
-topical: organophosphates, amitraz, metiflumazone, moxidectin -systemic: milbemycin oxime, moxidectin, ivermectin |
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What is the most important first step in managing generalized demodicosis
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Antibiotics to treat pyoderma
Stop glucocorticoids |
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How do you use Amitraz / Mitaban
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total body clip
shampoo 10-15 min rinse contact time allowed to dry rinse once weekly for 8-12 rinses |
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How long do you use Amitraz rinses
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treat for 2 rinses past 2nd negative scraping
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