Heart Murmurs in Small Dogs: What the Grade Means and When to Act
Small breed dogs carry a disproportionate burden of heart disease. Cavalier King Charles Spaniels, Dachshunds, Chihuahuas, Pomeranians, and Shih Tzus develop myxomatous mitral valve disease, the most common acquired cardiac condition in dogs, at rates far higher than large breeds, and many are diagnosed before they show a single outward…
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