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Mitral regurgitation: The most common heart disease in dogs (Proceedings)
A. Prevalence/Etiology: 72 million dogs in the US; 72 million cats in the US; 11% of each have heart disease; 85% of dogs with hearty disease have endocardiodiosis leading to mitral regurgitation. Prevalent in small, chondrodystrophic; familial; possibly 5HT-mediated; possibly related to periodontal disease.
1. Left apical holosystolic murmur unrelated to severity. No Rx. 2. Left atrial and left ventricular enlargement related to severity. Rx: ACE inhibitor, spironolactone, possibly beta blocker
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