In today’s VetGirl blog, we’ll discuss the prevalence and risk factors for growing methicillin-resistant Staphylococcus – what we’ll call MRS from now on - from dogs with pyoderma. Clinically, what do we see with dogs that have a superficial pyoderma? Classic lesions include pustules, papules, epidermal collarettes, and crusts.
We'll review a study assessing the prevalence of MRS in dogs presenting to a tertiary referral hospital (UCDavis) versus general practice. Overall, what'd this study find? Dogs that received antibiotics during the year prior to skin bacterial culture/sensitivity had an increased risk of developing methicillin-resistant pyoderma in both primary and tertiary veterinary hospitals.
When in doubt, let’s be judicious using appropriate antibiotic therapy, using the lowest, effective gun possible, using the appropriate duration of treatment, and when in doubt, at least Gram staining samples to get a better idea if our class of antibiotics is appropriate. Remember, culture, culture, culture! So important so we can make sure we’re treating our resistant canine pyoderma cases appropriately!
Eckholm NG, Outerbridge CA, White SD, Sykes JE. Prevalence of and risk factors for isolation of methicillin-resistant Staphylococcus spp. from dogs with pyoderma in northern California, USA. Vet Derm 2013;24:154-161.